diff --git a/Cargo.toml b/Cargo.toml
index 59043c6..ce02eed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,6 @@ serde = { version = "1.0.106", features = ["derive"] }
 serde_json = "1.0.52"
 # TODO: Get from crates.io once 3.0 is published
 clap = { git = "https://github.com/clap-rs/clap/" }
-diesel = { version = "1.4", features = ["postgres"] }
 flate2 = "1.0.14"
 dotenv = "0.15.0"
 itertools = "0.9.0"
diff --git a/Dockerfile b/Dockerfile
index 2acaa02..276a806 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,14 +2,17 @@
 FROM rust:1.43 as builder
 WORKDIR /usr/src/papergraph
 COPY . .
-RUN cargo install diesel_cli --no-default-features --features "postgres"
 RUN cargo install --path .
 
 # Serving container
 FROM debian:buster-slim
 WORKDIR /usr/src/papergraph
-RUN apt-get update && apt-get install -y libpq-dev wget
+
+RUN apt-get update && apt-get install -y wget tar
+RUN wget https://github.com/dgraph-io/dgraph/releases/download/v20.03.1/dgraph-linux-amd64.tar.gz && \
+  tar -C /usr/local/bin -xzf dgraph-linux-amd64.tar.gz && \
+  rm dgraph-linux-amd64.tar.gz
+
 COPY . .
 COPY --from=builder /usr/local/cargo/bin/papergraph /usr/local/bin/papergraph
-COPY --from=builder /usr/local/cargo/bin/diesel /usr/local/bin/diesel
-CMD ["papergraph"]
+CMD ["papergraph"]
\ No newline at end of file
diff --git a/deploy/k8s/cloudsql.yaml b/deploy/k8s/cloudsql.yaml
deleted file mode 100644
index 42ab973..0000000
--- a/deploy/k8s/cloudsql.yaml
+++ /dev/null
@@ -1,53 +0,0 @@
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: papergraph-cloudsql
-  labels:
-    app: papergraph
-spec:
-  ports:
-    - port: 5432
-  selector:
-    app: papergraph
-    tier: cloudsql
-  clusterIP: None
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: papergraph-cloudsql
-  labels:
-    app: papergraph
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: papergraph
-      tier: cloudsql
-  template:
-    metadata:
-      labels:
-        app: papergraph
-        tier: cloudsql
-    spec:
-      volumes:
-        - name: papergraph-credentials
-          secret:
-            secretName: papergraph-sa-cred    
-      containers:
-        - name: cloudsql-proxy
-          image: gcr.io/cloudsql-docker/gce-proxy:1.16
-          command: ["/cloud_sql_proxy",
-                    "-instances=sideprojects-234609:us-central1:papergraph=tcp:0.0.0.0:5432",
-                    "-credential_file=/secrets/papergraph-sa.json"]
-          ports:
-            - containerPort: 5432
-              name: postgres                    
-          securityContext:
-            runAsUser: 2  # non-root user
-            allowPrivilegeEscalation: false
-          volumeMounts:
-            - name: papergraph-credentials
-              mountPath: /secrets
-              readOnly: true
diff --git a/deploy/k8s/dgraph.yaml b/deploy/k8s/dgraph.yaml
new file mode 100644
index 0000000..3342b01
--- /dev/null
+++ b/deploy/k8s/dgraph.yaml
@@ -0,0 +1,145 @@
+---
+# A small volume to store the dgraph xid mapping for data insertions
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: dgraph-xid
+  labels:
+    app: papergraph
+    tier: dgraph
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: faster
+  resources:
+    requests:
+      storage: 16Gi
+---
+# This is the service that should be used by the clients of Dgraph to talk to the cluster.
+apiVersion: v1
+kind: Service
+metadata:
+  name: papergraph-dgraph
+  labels:
+    app: papergraph
+    tier: dgraph
+spec:
+  # type: LoadBalancer
+  ports:
+    - port: 5080
+      targetPort: 5080
+      name: zero-grpc
+    - port: 6080
+      targetPort: 6080
+      name: zero-http
+    - port: 8080
+      targetPort: 8080
+      name: alpha-http
+    - port: 9080
+      targetPort: 9080
+      name: alpha-grpc
+    - port: 8000
+      targetPort: 8000
+      name: ratel-http
+  selector:
+    app: papergraph
+    tier: dgraph
+---
+# This StatefulSet runs 1 pod with one Zero, one Alpha & one Ratel containers.
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: papergraph-dgraph
+spec:
+  serviceName: "papergraph-dgraph"
+  replicas: 1
+  selector:
+    matchLabels:
+      app: papergraph
+      tier: dgraph
+  template:
+    metadata:
+      labels:
+        app: papergraph
+        tier: dgraph
+    spec:
+      tolerations:
+        - key: "preemptible"
+          operator: "Exists"
+          effect: "NoSchedule"
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+              - matchExpressions:
+                  - key: cloud.google.com/gke-nodepool
+                    operator: In
+                    values:
+                      - preempt-1    
+      containers:
+        - name: ratel
+          image: dgraph/dgraph:v20.03.1
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8000
+              name: ratel-http
+          command:
+            - dgraph-ratel
+        - name: zero
+          image: dgraph/dgraph:v20.03.1
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 5080
+              name: zero-grpc
+            - containerPort: 6080
+              name: zero-http
+          volumeMounts:
+            - name: datadir
+              mountPath: /dgraph
+          command:
+            - bash
+            - "-c"
+            - |
+              set -ex
+              dgraph zero --my=localhost:5080 --ludicrous_mode
+        - name: alpha
+          image: dgraph/dgraph:v20.03.1
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8080
+              name: alpha-http
+            - containerPort: 9080
+              name: alpha-grpc
+          volumeMounts:
+            - name: datadir
+              mountPath: /dgraph
+          env:
+            - name: POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+          command:
+            - bash
+            - "-c"
+            - |
+              set -ex
+              dgraph alpha --my=localhost:7080 --lru_mb 8192 --zero localhost:5080 --ludicrous_mode
+      terminationGracePeriodSeconds: 60
+      volumes:
+        - name: datadir
+          persistentVolumeClaim:
+            claimName: datadir
+  updateStrategy:
+    type: RollingUpdate
+  volumeClaimTemplates:
+    - metadata:
+        name: datadir
+        annotations:
+          volume.alpha.kubernetes.io/storage-class: anything
+      spec:
+        storageClassName: faster
+        accessModes:
+          - ReadWriteOnce
+        resources:
+          requests:
+            storage: 128Gi
diff --git a/deploy/k8s/hasura-dev.yaml b/deploy/k8s/hasura-dev.yaml
deleted file mode 100644
index 4cafd12..0000000
--- a/deploy/k8s/hasura-dev.yaml
+++ /dev/null
@@ -1,36 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: papergraph-hasura-dev
-  labels:
-    app: papergraph
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: papergraph
-      tier: hasura-dev
-  template:
-    metadata:
-      labels:
-        app: papergraph
-        tier: hasura-dev
-    spec:
-      containers:
-        - name: hasura
-          image: hasura/graphql-engine:v1.2.0.cli-migrations-v2
-          ports:
-            - containerPort: 8080
-              name: http
-          env:
-            - name: PGPASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: papergraph-cloudsql
-                  key: password
-            - name: HASURA_GRAPHQL_DATABASE_URL
-              value: postgres://postgres:$(PGPASSWORD)@papergraph-cloudsql:5432/papergraph
-            - name: HASURA_GRAPHQL_ENABLED_LOG_TYPES
-              value: "startup, http-log, webhook-log, websocket-log, query-log"
-            - name: HASURA_GRAPHQL_ENABLE_CONSOLE
-              value: "true"
\ No newline at end of file
diff --git a/deploy/k8s/hasura.yaml b/deploy/k8s/hasura.yaml
deleted file mode 100644
index 4c833b4..0000000
--- a/deploy/k8s/hasura.yaml
+++ /dev/null
@@ -1,70 +0,0 @@
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: papergraph-hasura
-  # annotations:
-  #   cloud.google.com/neg: '{"ingress": true}' # Creates a NEG after an Ingress is created
-  labels:
-    app: papergraph
-spec:
-  ports:
-    - port: 8080
-      targetPort: 8080
-  selector:
-    app: papergraph
-    tier: hasura
-  type: NodePort
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: papergraph-hasura
-  labels:
-    app: papergraph
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: papergraph
-      tier: hasura
-  template:
-    metadata:
-      labels:
-        app: papergraph
-        tier: hasura
-    spec:
-      containers:
-        - name: hasura
-          image: hasura/graphql-engine:v1.2.0.cli-migrations-v2
-          ports:
-            - containerPort: 8080
-              name: http
-          livenessProbe:
-            httpGet:
-              path: /healthz
-              port: 8080
-            failureThreshold: 1
-            periodSeconds: 10
-          readinessProbe:
-            httpGet:
-              path: /healthz
-              port: 8080
-            initialDelaySeconds: 5
-            periodSeconds: 5        
-          env:
-            - name: PGPASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: papergraph-cloudsql
-                  key: password
-            - name: HASURA_GRAPHQL_DATABASE_URL
-              value: postgres://postgres:$(PGPASSWORD)@papergraph-cloudsql:5432/papergraph
-            - name: HASURA_GRAPHQL_ENABLED_LOG_TYPES
-              value: "startup, http-log, webhook-log, websocket-log, query-log"
-            # Disable console in production
-            - name: HASURA_GRAPHQL_ENABLE_CONSOLE
-              value: "false"
-            # Disable metadata and other APIs in production
-            - name: HASURA_GRAPHQL_ENABLED_APIS
-              value: graphql
\ No newline at end of file
diff --git a/deploy/k8s/ingress.yaml b/deploy/k8s/ingress.yaml
index 119e2c3..0adb7ba 100644
--- a/deploy/k8s/ingress.yaml
+++ b/deploy/k8s/ingress.yaml
@@ -11,5 +11,5 @@ spec:
       paths:
       - path: /v1/graphql
         backend:
-          serviceName: papergraph-hasura
+          serviceName: papergraph-dgraph
           servicePort: 8080
\ No newline at end of file
diff --git a/deploy/k8s/postgres.yaml b/deploy/k8s/postgres.yaml
deleted file mode 100644
index 59476ec..0000000
--- a/deploy/k8s/postgres.yaml
+++ /dev/null
@@ -1,71 +0,0 @@
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: papergraph-postgres
-  labels:
-    app: papergraph
-spec:
-  ports:
-    - port: 5432
-  selector:
-    app: papergraph
-    tier: postgres
-  clusterIP: None
----
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: postgres-pv-claim
-  labels:
-    app: papergraph
-spec:
-  storageClassName: faster
-  accessModes:
-    - ReadWriteOnce
-  resources:
-    requests:
-      storage: 128Gi
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: papergraph-postgres
-  labels:
-    app: papergraph
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: papergraph
-      tier: postgres
-  template:
-    metadata:
-      labels:
-        app: papergraph
-        tier: postgres
-    spec:
-      volumes:
-        - name: postgres-data
-          persistentVolumeClaim:
-            claimName: postgres-pv-claim
-      containers:
-        - name: postgres
-          image: postgres:12
-          ports:
-            - containerPort: 5432
-              name: postgres
-          volumeMounts:
-            - name: postgres-data
-              mountPath: /var/lib/postgresql/data
-              subPath: data
-          env:
-            - name: POSTGRES_PASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: papergraph-cred
-                  key: postgres-password
-            - name: POSTGRES_DB
-              value: papergraph
-            - name: POSTGRES_USER
-              value: papergraph
\ No newline at end of file
diff --git a/deploy/k8s/workflows/run-dgraph.yaml b/deploy/k8s/workflows/run-dgraph.yaml
new file mode 100644
index 0000000..68b1ecd
--- /dev/null
+++ b/deploy/k8s/workflows/run-dgraph.yaml
@@ -0,0 +1,37 @@
+
+apiVersion: argoproj.io/v1alpha1
+kind: Workflow
+metadata:
+  generateName: papergraph-dgraph-
+spec:
+  entrypoint: run
+  arguments:
+    parameters:
+    - name: cmd
+      value: "echo hello world"
+  templates:
+  - name: run
+    tolerations:
+      - key: "preemptible"
+        operator: "Exists"
+        effect: "NoSchedule"
+    affinity:
+      nodeAffinity:
+        requiredDuringSchedulingIgnoredDuringExecution:
+          nodeSelectorTerms:
+            - matchExpressions:
+                - key: cloud.google.com/gke-nodepool
+                  operator: In
+                  values:
+                    - preempt-1   
+    inputs:
+      parameters:
+      - name: cmd
+    script:
+      image: dgraph/dgraph:v20.03.1
+      env:
+        - name: DGRAPH_URL
+          value: papergraph-dgraph:8080
+      command: ["/bin/bash"]
+      source: |
+        {{inputs.parameters.cmd}}
diff --git a/deploy/k8s/workflows/run.yaml b/deploy/k8s/workflows/run.yaml
deleted file mode 100644
index 6a6355c..0000000
--- a/deploy/k8s/workflows/run.yaml
+++ /dev/null
@@ -1,31 +0,0 @@
-
-apiVersion: argoproj.io/v1alpha1
-kind: Workflow
-metadata:
-  generateName: papergraph-run-
-spec:
-  entrypoint: run
-  arguments:
-    parameters:
-    - name: cmd
-      value: diesel print-schema
-  templates:
-  - name: run
-    inputs:
-      parameters:
-      - name: cmd
-    script:
-      image: dennybritz/papergraph:latest
-      env:
-        - name: RUST_LOG
-          value: info
-        - name: PGPASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: papergraph-cloudsql
-              key: password
-        - name: DATABASE_URL
-          value: postgres://postgres:$(PGPASSWORD)@papergraph-cloudsql:5432/papergraph
-      command: ["/bin/bash"]
-      source: |
-        {{inputs.parameters.cmd}}
diff --git a/deploy/k8s/workflows/seed-dgraph.yaml b/deploy/k8s/workflows/seed-dgraph.yaml
new file mode 100644
index 0000000..75517fa
--- /dev/null
+++ b/deploy/k8s/workflows/seed-dgraph.yaml
@@ -0,0 +1,64 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Workflow
+metadata:
+  generateName: papergraph-seed-
+spec:
+  entrypoint: seed-all
+  volumes:
+  - name: dgraph-xid
+    persistentVolumeClaim:
+      claimName: dgraph-xid
+  templates:
+    - name: seed-all
+      parallelism: 1
+      steps:
+        - - name: insert-all
+            template: insert
+            arguments:
+              parameters:
+                - name: url
+                  value: "{{item}}"
+            withItems:
+              # - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-000.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-001.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-002.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-003.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-004.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-005.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-006.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-007.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-008.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-009.gz
+              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-010.gz              
+    - name: insert
+      inputs:
+        parameters:
+          - name: url
+      script:
+        image: dennybritz/papergraph:sha-f488b60
+        volumeMounts:
+        - name: dgraph-xid
+          mountPath: /dgraph-xid  
+        env:
+          - name: RUST_LOG
+            value: debug
+          - name: DATA_URL
+            value: "{{inputs.parameters.url}}"
+          - name: DGRAPH_HOST
+            value: papergraph-dgraph
+        command: ["/bin/bash"]
+        source: |
+          echo ${DATA_URL}
+          wget ${DATA_URL}
+
+          # Convert to triples
+          FILENAME=$(basename ${DATA_URL})
+          papergraph make-triples -d ${FILENAME} > ${FILENAME}.rdf
+
+          # Insert into dgraph
+          dgraph live \
+            -a ${DGRAPH_HOST}:9080 \
+            -z ${DGRAPH_HOST}:5080 \
+            -s papergraph.schema \
+            -f ${FILENAME}.rdf \
+            -x /dgraph-xid
diff --git a/deploy/k8s/workflows/seed.yaml b/deploy/k8s/workflows/seed.yaml
deleted file mode 100644
index c375f3e..0000000
--- a/deploy/k8s/workflows/seed.yaml
+++ /dev/null
@@ -1,273 +0,0 @@
-apiVersion: argoproj.io/v1alpha1
-kind: Workflow
-metadata:
-  generateName: papergraph-seed-
-spec:
-  entrypoint: seed-all
-  volumes:
-    - name: papergraph-credentials
-      secret:
-        secretName: papergraph-sa-cred
-  templates:
-    - name: seed-all
-      parallelism: 1
-      steps:
-        - - name: drop-index
-            template: psql
-            arguments:
-              parameters:
-                - name: cmd
-                  value: |
-                    DROP INDEX IF EXISTS title_idx;
-                    DROP INDEX IF EXISTS title_trgm_idx;
-                    ALTER TABLE papers SET UNLOGGED;
-                    ALTER TABLE authors SET UNLOGGED;
-                    ALTER TABLE paper_authors SET UNLOGGED;
-        - - name: insert-all
-            template: insert
-            arguments:
-              parameters:
-                - name: url
-                  value: "{{item}}"
-            withItems:
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-000.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-001.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-002.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-003.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-004.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-005.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-006.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-007.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-008.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-009.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-010.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-011.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-012.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-013.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-014.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-015.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-016.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-017.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-018.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-019.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-020.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-021.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-022.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-023.gz
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-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-180.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-181.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-182.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-183.gz
-              - https://s3-us-west-2.amazonaws.com/ai2-s2-research-public/open-corpus/2020-04-10/s2-corpus-184.gz
-
-        - - name: create-index
-            template: psql
-            arguments:
-              parameters:
-                - name: cmd
-                  value: |
-                    ALTER TABLE papers SET LOGGED;
-                    ALTER TABLE authors SET LOGGED;
-                    ALTER TABLE paper_authors SET LOGGED;
-                    CREATE INDEX title_idx ON papers(title);
-                    CREATE INDEX title_trgm_idx ON papers USING GIST (title gist_trgm_ops);
-    - name: psql
-      inputs:
-        parameters:
-          - name: cmd
-      container:
-        image: postgres:12
-        env:
-          - name: PGPASSWORD
-            valueFrom:
-              secretKeyRef:
-                name: papergraph-cloudsql
-                key: password
-          - name: PGHOST
-            value: papergraph-cloudsql
-          - name: PGDATABASE
-            value: papergraph
-          - name: PGUSER
-            value: postgres
-        command: ["psql", "-c"]
-        args:
-          - "{{inputs.parameters.cmd}}"
-    - name: insert
-      inputs:
-        parameters:
-          - name: url
-      script:
-        image: dennybritz/papergraph:latest
-        env:
-          - name: RUST_LOG
-            value: debug
-          - name: PGPASSWORD
-            valueFrom:
-              secretKeyRef:
-                name: papergraph-cloudsql
-                key: password
-          - name: DATABASE_URL
-            value: postgres://postgres:$(PGPASSWORD)@papergraph-cloudsql:5432/papergraph
-          - name: DATA_URL
-            value: "{{inputs.parameters.url}}"
-        command: ["/bin/bash"]
-        source: |
-          echo ${DATA_URL}
-          wget ${DATA_URL}
-          papergraph insert -d $(basename ${DATA_URL})
diff --git a/diesel.toml b/diesel.toml
deleted file mode 100644
index 71215db..0000000
--- a/diesel.toml
+++ /dev/null
@@ -1,5 +0,0 @@
-# For documentation on how to configure this file,
-# see diesel.rs/guides/configuring-diesel-cli
-
-[print_schema]
-file = "src/db/schema.rs"
diff --git a/hasura/config.yaml b/hasura/config.yaml
deleted file mode 100644
index 6ddf586..0000000
--- a/hasura/config.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-version: 2
-endpoint: http://localhost:8080
-metadata_directory: metadata
-actions:
-  kind: synchronous
-  handler_webhook_baseurl: http://localhost:3000
diff --git a/hasura/metadata/actions.graphql b/hasura/metadata/actions.graphql
deleted file mode 100644
index 139597f..0000000
--- a/hasura/metadata/actions.graphql
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
diff --git a/hasura/metadata/actions.yaml b/hasura/metadata/actions.yaml
deleted file mode 100644
index 1edb4c2..0000000
--- a/hasura/metadata/actions.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-actions: []
-custom_types:
-  enums: []
-  input_objects: []
-  objects: []
-  scalars: []
diff --git a/hasura/metadata/allow_list.yaml b/hasura/metadata/allow_list.yaml
deleted file mode 100644
index fe51488..0000000
--- a/hasura/metadata/allow_list.yaml
+++ /dev/null
@@ -1 +0,0 @@
-[]
diff --git a/hasura/metadata/functions.yaml b/hasura/metadata/functions.yaml
deleted file mode 100644
index fe51488..0000000
--- a/hasura/metadata/functions.yaml
+++ /dev/null
@@ -1 +0,0 @@
-[]
diff --git a/hasura/metadata/query_collections.yaml b/hasura/metadata/query_collections.yaml
deleted file mode 100644
index fe51488..0000000
--- a/hasura/metadata/query_collections.yaml
+++ /dev/null
@@ -1 +0,0 @@
-[]
diff --git a/hasura/metadata/remote_schemas.yaml b/hasura/metadata/remote_schemas.yaml
deleted file mode 100644
index fe51488..0000000
--- a/hasura/metadata/remote_schemas.yaml
+++ /dev/null
@@ -1 +0,0 @@
-[]
diff --git a/hasura/metadata/tables.yaml b/hasura/metadata/tables.yaml
deleted file mode 100644
index aa3fa03..0000000
--- a/hasura/metadata/tables.yaml
+++ /dev/null
@@ -1,50 +0,0 @@
-- table:
-    schema: public
-    name: authors
-- table:
-    schema: public
-    name: paper_authors
-  object_relationships:
-  - name: author
-    using:
-      manual_configuration:
-        remote_table:
-          schema: public
-          name: authors
-        column_mapping:
-          author_id: id
-  - name: paper
-    using:
-      manual_configuration:
-        remote_table:
-          schema: public
-          name: papers
-        column_mapping:
-          paper_id: id
-- table:
-    schema: public
-    name: papers
-  array_relationships:
-  - name: authors
-    using:
-      manual_configuration:
-        remote_table:
-          schema: public
-          name: paper_authors
-        column_mapping:
-          id: paper_id
-  computed_fields:
-  - name: cites
-    definition:
-      function:
-        schema: public
-        name: cites
-      table_argument: null
-    comment: ""
-  - name: num_citations
-    definition:
-      function:
-        schema: public
-        name: num_citations
-      table_argument: null
-    comment: ""
diff --git a/hasura/metadata/version.yaml b/hasura/metadata/version.yaml
deleted file mode 100644
index 22817d2..0000000
--- a/hasura/metadata/version.yaml
+++ /dev/null
@@ -1 +0,0 @@
-version: 2
diff --git a/hasura/schema.graphql b/hasura/schema.graphql
deleted file mode 100644
index 6a7e1a0..0000000
--- a/hasura/schema.graphql
+++ /dev/null
@@ -1,1165 +0,0 @@
-schema {
-  query: query_root
-  mutation: mutation_root
-  subscription: subscription_root
-}
-
-scalar _text
-
-# expression to compare columns of type _text. All fields are combined with logical 'AND'.
-input _text_comparison_exp {
-  _eq: _text
-  _gt: _text
-  _gte: _text
-  _in: [_text!]
-  _is_null: Boolean
-  _lt: _text
-  _lte: _text
-  _neq: _text
-  _nin: [_text!]
-}
-
-# columns and relationships of "authors"
-type authors {
-  id: String!
-  name: String!
-}
-
-# aggregated selection of "authors"
-type authors_aggregate {
-  aggregate: authors_aggregate_fields
-  nodes: [authors!]!
-}
-
-# aggregate fields of "authors"
-type authors_aggregate_fields {
-  count(columns: [authors_select_column!], distinct: Boolean): Int
-  max: authors_max_fields
-  min: authors_min_fields
-}
-
-# order by aggregate values of table "authors"
-input authors_aggregate_order_by {
-  count: order_by
-  max: authors_max_order_by
-  min: authors_min_order_by
-}
-
-# input type for inserting array relation for remote table "authors"
-input authors_arr_rel_insert_input {
-  data: [authors_insert_input!]!
-  on_conflict: authors_on_conflict
-}
-
-# Boolean expression to filter rows from the table "authors". All fields are combined with a logical 'AND'.
-input authors_bool_exp {
-  _and: [authors_bool_exp]
-  _not: authors_bool_exp
-  _or: [authors_bool_exp]
-  id: String_comparison_exp
-  name: String_comparison_exp
-}
-
-# unique or primary key constraints on table "authors"
-enum authors_constraint {
-  # unique or primary key constraint
-  authors_pkey
-}
-
-# input type for inserting data into table "authors"
-input authors_insert_input {
-  id: String
-  name: String
-}
-
-# aggregate max on columns
-type authors_max_fields {
-  id: String
-  name: String
-}
-
-# order by max() on columns of table "authors"
-input authors_max_order_by {
-  id: order_by
-  name: order_by
-}
-
-# aggregate min on columns
-type authors_min_fields {
-  id: String
-  name: String
-}
-
-# order by min() on columns of table "authors"
-input authors_min_order_by {
-  id: order_by
-  name: order_by
-}
-
-# response of any mutation on the table "authors"
-type authors_mutation_response {
-  # number of affected rows by the mutation
-  affected_rows: Int!
-
-  # data of the affected rows by the mutation
-  returning: [authors!]!
-}
-
-# input type for inserting object relation for remote table "authors"
-input authors_obj_rel_insert_input {
-  data: authors_insert_input!
-  on_conflict: authors_on_conflict
-}
-
-# on conflict condition type for table "authors"
-input authors_on_conflict {
-  constraint: authors_constraint!
-  update_columns: [authors_update_column!]!
-  where: authors_bool_exp
-}
-
-# ordering options when selecting data from "authors"
-input authors_order_by {
-  id: order_by
-  name: order_by
-}
-
-# primary key columns input for table: "authors"
-input authors_pk_columns_input {
-  id: String!
-}
-
-# select columns of table "authors"
-enum authors_select_column {
-  # column name
-  id
-
-  # column name
-  name
-}
-
-# input type for updating data in table "authors"
-input authors_set_input {
-  id: String
-  name: String
-}
-
-# update columns of table "authors"
-enum authors_update_column {
-  # column name
-  id
-
-  # column name
-  name
-}
-
-input cites_args {
-  limit_: Int
-}
-
-# mutation root
-type mutation_root {
-  # delete data from the table: "authors"
-  delete_authors(
-    # filter the rows which have to be deleted
-    where: authors_bool_exp!
-  ): authors_mutation_response
-
-  # delete single row from the table: "authors"
-  delete_authors_by_pk(id: String!): authors
-
-  # delete data from the table: "paper_authors"
-  delete_paper_authors(
-    # filter the rows which have to be deleted
-    where: paper_authors_bool_exp!
-  ): paper_authors_mutation_response
-
-  # delete single row from the table: "paper_authors"
-  delete_paper_authors_by_pk(author_id: String!, paper_id: String!): paper_authors
-
-  # delete data from the table: "papers"
-  delete_papers(
-    # filter the rows which have to be deleted
-    where: papers_bool_exp!
-  ): papers_mutation_response
-
-  # delete single row from the table: "papers"
-  delete_papers_by_pk(id: String!): papers
-
-  # insert data into the table: "authors"
-  insert_authors(
-    # the rows to be inserted
-    objects: [authors_insert_input!]!
-
-    # on conflict condition
-    on_conflict: authors_on_conflict
-  ): authors_mutation_response
-
-  # insert a single row into the table: "authors"
-  insert_authors_one(
-    # the row to be inserted
-    object: authors_insert_input!
-
-    # on conflict condition
-    on_conflict: authors_on_conflict
-  ): authors
-
-  # insert data into the table: "paper_authors"
-  insert_paper_authors(
-    # the rows to be inserted
-    objects: [paper_authors_insert_input!]!
-
-    # on conflict condition
-    on_conflict: paper_authors_on_conflict
-  ): paper_authors_mutation_response
-
-  # insert a single row into the table: "paper_authors"
-  insert_paper_authors_one(
-    # the row to be inserted
-    object: paper_authors_insert_input!
-
-    # on conflict condition
-    on_conflict: paper_authors_on_conflict
-  ): paper_authors
-
-  # insert data into the table: "papers"
-  insert_papers(
-    # the rows to be inserted
-    objects: [papers_insert_input!]!
-
-    # on conflict condition
-    on_conflict: papers_on_conflict
-  ): papers_mutation_response
-
-  # insert a single row into the table: "papers"
-  insert_papers_one(
-    # the row to be inserted
-    object: papers_insert_input!
-
-    # on conflict condition
-    on_conflict: papers_on_conflict
-  ): papers
-
-  # update data of the table: "authors"
-  update_authors(
-    # sets the columns of the filtered rows to the given values
-    _set: authors_set_input
-
-    # filter the rows which have to be updated
-    where: authors_bool_exp!
-  ): authors_mutation_response
-
-  # update single row of the table: "authors"
-  update_authors_by_pk(
-    # sets the columns of the filtered rows to the given values
-    _set: authors_set_input
-    pk_columns: authors_pk_columns_input!
-  ): authors
-
-  # update data of the table: "paper_authors"
-  update_paper_authors(
-    # sets the columns of the filtered rows to the given values
-    _set: paper_authors_set_input
-
-    # filter the rows which have to be updated
-    where: paper_authors_bool_exp!
-  ): paper_authors_mutation_response
-
-  # update single row of the table: "paper_authors"
-  update_paper_authors_by_pk(
-    # sets the columns of the filtered rows to the given values
-    _set: paper_authors_set_input
-    pk_columns: paper_authors_pk_columns_input!
-  ): paper_authors
-
-  # update data of the table: "papers"
-  update_papers(
-    # increments the integer columns with given value of the filtered values
-    _inc: papers_inc_input
-
-    # sets the columns of the filtered rows to the given values
-    _set: papers_set_input
-
-    # filter the rows which have to be updated
-    where: papers_bool_exp!
-  ): papers_mutation_response
-
-  # update single row of the table: "papers"
-  update_papers_by_pk(
-    # increments the integer columns with given value of the filtered values
-    _inc: papers_inc_input
-
-    # sets the columns of the filtered rows to the given values
-    _set: papers_set_input
-    pk_columns: papers_pk_columns_input!
-  ): papers
-}
-
-# column ordering options
-enum order_by {
-  # in the ascending order, nulls last
-  asc
-
-  # in the ascending order, nulls first
-  asc_nulls_first
-
-  # in the ascending order, nulls last
-  asc_nulls_last
-
-  # in the descending order, nulls first
-  desc
-
-  # in the descending order, nulls first
-  desc_nulls_first
-
-  # in the descending order, nulls last
-  desc_nulls_last
-}
-
-# columns and relationships of "paper_authors"
-type paper_authors {
-  # An object relationship
-  author: authors
-  author_id: String!
-
-  # An object relationship
-  paper: papers
-  paper_id: String!
-}
-
-# aggregated selection of "paper_authors"
-type paper_authors_aggregate {
-  aggregate: paper_authors_aggregate_fields
-  nodes: [paper_authors!]!
-}
-
-# aggregate fields of "paper_authors"
-type paper_authors_aggregate_fields {
-  count(columns: [paper_authors_select_column!], distinct: Boolean): Int
-  max: paper_authors_max_fields
-  min: paper_authors_min_fields
-}
-
-# order by aggregate values of table "paper_authors"
-input paper_authors_aggregate_order_by {
-  count: order_by
-  max: paper_authors_max_order_by
-  min: paper_authors_min_order_by
-}
-
-# input type for inserting array relation for remote table "paper_authors"
-input paper_authors_arr_rel_insert_input {
-  data: [paper_authors_insert_input!]!
-  on_conflict: paper_authors_on_conflict
-}
-
-# Boolean expression to filter rows from the table "paper_authors". All fields are combined with a logical 'AND'.
-input paper_authors_bool_exp {
-  _and: [paper_authors_bool_exp]
-  _not: paper_authors_bool_exp
-  _or: [paper_authors_bool_exp]
-  author: authors_bool_exp
-  author_id: String_comparison_exp
-  paper: papers_bool_exp
-  paper_id: String_comparison_exp
-}
-
-# unique or primary key constraints on table "paper_authors"
-enum paper_authors_constraint {
-  # unique or primary key constraint
-  paper_authors_pkey
-}
-
-# input type for inserting data into table "paper_authors"
-input paper_authors_insert_input {
-  author: authors_obj_rel_insert_input
-  author_id: String
-  paper: papers_obj_rel_insert_input
-  paper_id: String
-}
-
-# aggregate max on columns
-type paper_authors_max_fields {
-  author_id: String
-  paper_id: String
-}
-
-# order by max() on columns of table "paper_authors"
-input paper_authors_max_order_by {
-  author_id: order_by
-  paper_id: order_by
-}
-
-# aggregate min on columns
-type paper_authors_min_fields {
-  author_id: String
-  paper_id: String
-}
-
-# order by min() on columns of table "paper_authors"
-input paper_authors_min_order_by {
-  author_id: order_by
-  paper_id: order_by
-}
-
-# response of any mutation on the table "paper_authors"
-type paper_authors_mutation_response {
-  # number of affected rows by the mutation
-  affected_rows: Int!
-
-  # data of the affected rows by the mutation
-  returning: [paper_authors!]!
-}
-
-# input type for inserting object relation for remote table "paper_authors"
-input paper_authors_obj_rel_insert_input {
-  data: paper_authors_insert_input!
-  on_conflict: paper_authors_on_conflict
-}
-
-# on conflict condition type for table "paper_authors"
-input paper_authors_on_conflict {
-  constraint: paper_authors_constraint!
-  update_columns: [paper_authors_update_column!]!
-  where: paper_authors_bool_exp
-}
-
-# ordering options when selecting data from "paper_authors"
-input paper_authors_order_by {
-  author: authors_order_by
-  author_id: order_by
-  paper: papers_order_by
-  paper_id: order_by
-}
-
-# primary key columns input for table: "paper_authors"
-input paper_authors_pk_columns_input {
-  author_id: String!
-  paper_id: String!
-}
-
-# select columns of table "paper_authors"
-enum paper_authors_select_column {
-  # column name
-  author_id
-
-  # column name
-  paper_id
-}
-
-# input type for updating data in table "paper_authors"
-input paper_authors_set_input {
-  author_id: String
-  paper_id: String
-}
-
-# update columns of table "paper_authors"
-enum paper_authors_update_column {
-  # column name
-  author_id
-
-  # column name
-  paper_id
-}
-
-# columns and relationships of "papers"
-type papers {
-  # An array relationship
-  authors(
-    # distinct select on columns
-    distinct_on: [paper_authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [paper_authors_order_by!]
-
-    # filter the rows returned
-    where: paper_authors_bool_exp
-  ): [paper_authors!]!
-
-  # An aggregated array relationship
-  authors_aggregate(
-    # distinct select on columns
-    distinct_on: [paper_authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [paper_authors_order_by!]
-
-    # filter the rows returned
-    where: paper_authors_bool_exp
-  ): paper_authors_aggregate!
-
-  # A computed field, executes function "cites"
-  cites(
-    # input parameters for function "cites"
-    args: cites_args!
-
-    # distinct select on columns
-    distinct_on: [papers_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [papers_order_by!]
-
-    # filter the rows returned
-    where: papers_bool_exp
-  ): [papers!]
-  doi: String
-  doi_url: String
-  entities: _text
-  fields_of_study: _text
-  id: String!
-  in_citations: _text
-
-  # A computed field, executes function "num_citations"
-  num_citations: Int
-  out_citations: _text
-  paper_abstract: String
-  pdf_urls: _text
-  s2_url: String
-  title: String!
-  year: smallint
-}
-
-# aggregated selection of "papers"
-type papers_aggregate {
-  aggregate: papers_aggregate_fields
-  nodes: [papers!]!
-}
-
-# aggregate fields of "papers"
-type papers_aggregate_fields {
-  avg: papers_avg_fields
-  count(columns: [papers_select_column!], distinct: Boolean): Int
-  max: papers_max_fields
-  min: papers_min_fields
-  stddev: papers_stddev_fields
-  stddev_pop: papers_stddev_pop_fields
-  stddev_samp: papers_stddev_samp_fields
-  sum: papers_sum_fields
-  var_pop: papers_var_pop_fields
-  var_samp: papers_var_samp_fields
-  variance: papers_variance_fields
-}
-
-# order by aggregate values of table "papers"
-input papers_aggregate_order_by {
-  avg: papers_avg_order_by
-  count: order_by
-  max: papers_max_order_by
-  min: papers_min_order_by
-  stddev: papers_stddev_order_by
-  stddev_pop: papers_stddev_pop_order_by
-  stddev_samp: papers_stddev_samp_order_by
-  sum: papers_sum_order_by
-  var_pop: papers_var_pop_order_by
-  var_samp: papers_var_samp_order_by
-  variance: papers_variance_order_by
-}
-
-# input type for inserting array relation for remote table "papers"
-input papers_arr_rel_insert_input {
-  data: [papers_insert_input!]!
-  on_conflict: papers_on_conflict
-}
-
-# aggregate avg on columns
-type papers_avg_fields {
-  year: Float
-}
-
-# order by avg() on columns of table "papers"
-input papers_avg_order_by {
-  year: order_by
-}
-
-# Boolean expression to filter rows from the table "papers". All fields are combined with a logical 'AND'.
-input papers_bool_exp {
-  _and: [papers_bool_exp]
-  _not: papers_bool_exp
-  _or: [papers_bool_exp]
-  authors: paper_authors_bool_exp
-  doi: String_comparison_exp
-  doi_url: String_comparison_exp
-  entities: _text_comparison_exp
-  fields_of_study: _text_comparison_exp
-  id: String_comparison_exp
-  in_citations: _text_comparison_exp
-  out_citations: _text_comparison_exp
-  paper_abstract: String_comparison_exp
-  pdf_urls: _text_comparison_exp
-  s2_url: String_comparison_exp
-  title: String_comparison_exp
-  year: smallint_comparison_exp
-}
-
-# unique or primary key constraints on table "papers"
-enum papers_constraint {
-  # unique or primary key constraint
-  papers_pkey
-}
-
-# input type for incrementing integer column in table "papers"
-input papers_inc_input {
-  year: smallint
-}
-
-# input type for inserting data into table "papers"
-input papers_insert_input {
-  authors: paper_authors_arr_rel_insert_input
-  doi: String
-  doi_url: String
-  entities: _text
-  fields_of_study: _text
-  id: String
-  in_citations: _text
-  out_citations: _text
-  paper_abstract: String
-  pdf_urls: _text
-  s2_url: String
-  title: String
-  year: smallint
-}
-
-# aggregate max on columns
-type papers_max_fields {
-  doi: String
-  doi_url: String
-  id: String
-  paper_abstract: String
-  s2_url: String
-  title: String
-  year: smallint
-}
-
-# order by max() on columns of table "papers"
-input papers_max_order_by {
-  doi: order_by
-  doi_url: order_by
-  id: order_by
-  paper_abstract: order_by
-  s2_url: order_by
-  title: order_by
-  year: order_by
-}
-
-# aggregate min on columns
-type papers_min_fields {
-  doi: String
-  doi_url: String
-  id: String
-  paper_abstract: String
-  s2_url: String
-  title: String
-  year: smallint
-}
-
-# order by min() on columns of table "papers"
-input papers_min_order_by {
-  doi: order_by
-  doi_url: order_by
-  id: order_by
-  paper_abstract: order_by
-  s2_url: order_by
-  title: order_by
-  year: order_by
-}
-
-# response of any mutation on the table "papers"
-type papers_mutation_response {
-  # number of affected rows by the mutation
-  affected_rows: Int!
-
-  # data of the affected rows by the mutation
-  returning: [papers!]!
-}
-
-# input type for inserting object relation for remote table "papers"
-input papers_obj_rel_insert_input {
-  data: papers_insert_input!
-  on_conflict: papers_on_conflict
-}
-
-# on conflict condition type for table "papers"
-input papers_on_conflict {
-  constraint: papers_constraint!
-  update_columns: [papers_update_column!]!
-  where: papers_bool_exp
-}
-
-# ordering options when selecting data from "papers"
-input papers_order_by {
-  authors_aggregate: paper_authors_aggregate_order_by
-  doi: order_by
-  doi_url: order_by
-  entities: order_by
-  fields_of_study: order_by
-  id: order_by
-  in_citations: order_by
-  out_citations: order_by
-  paper_abstract: order_by
-  pdf_urls: order_by
-  s2_url: order_by
-  title: order_by
-  year: order_by
-}
-
-# primary key columns input for table: "papers"
-input papers_pk_columns_input {
-  id: String!
-}
-
-# select columns of table "papers"
-enum papers_select_column {
-  # column name
-  doi
-
-  # column name
-  doi_url
-
-  # column name
-  entities
-
-  # column name
-  fields_of_study
-
-  # column name
-  id
-
-  # column name
-  in_citations
-
-  # column name
-  out_citations
-
-  # column name
-  paper_abstract
-
-  # column name
-  pdf_urls
-
-  # column name
-  s2_url
-
-  # column name
-  title
-
-  # column name
-  year
-}
-
-# input type for updating data in table "papers"
-input papers_set_input {
-  doi: String
-  doi_url: String
-  entities: _text
-  fields_of_study: _text
-  id: String
-  in_citations: _text
-  out_citations: _text
-  paper_abstract: String
-  pdf_urls: _text
-  s2_url: String
-  title: String
-  year: smallint
-}
-
-# aggregate stddev on columns
-type papers_stddev_fields {
-  year: Float
-}
-
-# order by stddev() on columns of table "papers"
-input papers_stddev_order_by {
-  year: order_by
-}
-
-# aggregate stddev_pop on columns
-type papers_stddev_pop_fields {
-  year: Float
-}
-
-# order by stddev_pop() on columns of table "papers"
-input papers_stddev_pop_order_by {
-  year: order_by
-}
-
-# aggregate stddev_samp on columns
-type papers_stddev_samp_fields {
-  year: Float
-}
-
-# order by stddev_samp() on columns of table "papers"
-input papers_stddev_samp_order_by {
-  year: order_by
-}
-
-# aggregate sum on columns
-type papers_sum_fields {
-  year: smallint
-}
-
-# order by sum() on columns of table "papers"
-input papers_sum_order_by {
-  year: order_by
-}
-
-# update columns of table "papers"
-enum papers_update_column {
-  # column name
-  doi
-
-  # column name
-  doi_url
-
-  # column name
-  entities
-
-  # column name
-  fields_of_study
-
-  # column name
-  id
-
-  # column name
-  in_citations
-
-  # column name
-  out_citations
-
-  # column name
-  paper_abstract
-
-  # column name
-  pdf_urls
-
-  # column name
-  s2_url
-
-  # column name
-  title
-
-  # column name
-  year
-}
-
-# aggregate var_pop on columns
-type papers_var_pop_fields {
-  year: Float
-}
-
-# order by var_pop() on columns of table "papers"
-input papers_var_pop_order_by {
-  year: order_by
-}
-
-# aggregate var_samp on columns
-type papers_var_samp_fields {
-  year: Float
-}
-
-# order by var_samp() on columns of table "papers"
-input papers_var_samp_order_by {
-  year: order_by
-}
-
-# aggregate variance on columns
-type papers_variance_fields {
-  year: Float
-}
-
-# order by variance() on columns of table "papers"
-input papers_variance_order_by {
-  year: order_by
-}
-
-# query root
-type query_root {
-  # fetch data from the table: "authors"
-  authors(
-    # distinct select on columns
-    distinct_on: [authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [authors_order_by!]
-
-    # filter the rows returned
-    where: authors_bool_exp
-  ): [authors!]!
-
-  # fetch aggregated fields from the table: "authors"
-  authors_aggregate(
-    # distinct select on columns
-    distinct_on: [authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [authors_order_by!]
-
-    # filter the rows returned
-    where: authors_bool_exp
-  ): authors_aggregate!
-
-  # fetch data from the table: "authors" using primary key columns
-  authors_by_pk(id: String!): authors
-
-  # fetch data from the table: "paper_authors"
-  paper_authors(
-    # distinct select on columns
-    distinct_on: [paper_authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [paper_authors_order_by!]
-
-    # filter the rows returned
-    where: paper_authors_bool_exp
-  ): [paper_authors!]!
-
-  # fetch aggregated fields from the table: "paper_authors"
-  paper_authors_aggregate(
-    # distinct select on columns
-    distinct_on: [paper_authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [paper_authors_order_by!]
-
-    # filter the rows returned
-    where: paper_authors_bool_exp
-  ): paper_authors_aggregate!
-
-  # fetch data from the table: "paper_authors" using primary key columns
-  paper_authors_by_pk(author_id: String!, paper_id: String!): paper_authors
-
-  # fetch data from the table: "papers"
-  papers(
-    # distinct select on columns
-    distinct_on: [papers_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [papers_order_by!]
-
-    # filter the rows returned
-    where: papers_bool_exp
-  ): [papers!]!
-
-  # fetch aggregated fields from the table: "papers"
-  papers_aggregate(
-    # distinct select on columns
-    distinct_on: [papers_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [papers_order_by!]
-
-    # filter the rows returned
-    where: papers_bool_exp
-  ): papers_aggregate!
-
-  # fetch data from the table: "papers" using primary key columns
-  papers_by_pk(id: String!): papers
-}
-
-scalar smallint
-
-# expression to compare columns of type smallint. All fields are combined with logical 'AND'.
-input smallint_comparison_exp {
-  _eq: smallint
-  _gt: smallint
-  _gte: smallint
-  _in: [smallint!]
-  _is_null: Boolean
-  _lt: smallint
-  _lte: smallint
-  _neq: smallint
-  _nin: [smallint!]
-}
-
-# expression to compare columns of type String. All fields are combined with logical 'AND'.
-input String_comparison_exp {
-  _eq: String
-  _gt: String
-  _gte: String
-  _ilike: String
-  _in: [String!]
-  _is_null: Boolean
-  _like: String
-  _lt: String
-  _lte: String
-  _neq: String
-  _nilike: String
-  _nin: [String!]
-  _nlike: String
-  _nsimilar: String
-  _similar: String
-}
-
-# subscription root
-type subscription_root {
-  # fetch data from the table: "authors"
-  authors(
-    # distinct select on columns
-    distinct_on: [authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [authors_order_by!]
-
-    # filter the rows returned
-    where: authors_bool_exp
-  ): [authors!]!
-
-  # fetch aggregated fields from the table: "authors"
-  authors_aggregate(
-    # distinct select on columns
-    distinct_on: [authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [authors_order_by!]
-
-    # filter the rows returned
-    where: authors_bool_exp
-  ): authors_aggregate!
-
-  # fetch data from the table: "authors" using primary key columns
-  authors_by_pk(id: String!): authors
-
-  # fetch data from the table: "paper_authors"
-  paper_authors(
-    # distinct select on columns
-    distinct_on: [paper_authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [paper_authors_order_by!]
-
-    # filter the rows returned
-    where: paper_authors_bool_exp
-  ): [paper_authors!]!
-
-  # fetch aggregated fields from the table: "paper_authors"
-  paper_authors_aggregate(
-    # distinct select on columns
-    distinct_on: [paper_authors_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [paper_authors_order_by!]
-
-    # filter the rows returned
-    where: paper_authors_bool_exp
-  ): paper_authors_aggregate!
-
-  # fetch data from the table: "paper_authors" using primary key columns
-  paper_authors_by_pk(author_id: String!, paper_id: String!): paper_authors
-
-  # fetch data from the table: "papers"
-  papers(
-    # distinct select on columns
-    distinct_on: [papers_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [papers_order_by!]
-
-    # filter the rows returned
-    where: papers_bool_exp
-  ): [papers!]!
-
-  # fetch aggregated fields from the table: "papers"
-  papers_aggregate(
-    # distinct select on columns
-    distinct_on: [papers_select_column!]
-
-    # limit the number of rows returned
-    limit: Int
-
-    # skip the first n rows. Use only with order_by
-    offset: Int
-
-    # sort the rows by one or more columns
-    order_by: [papers_order_by!]
-
-    # filter the rows returned
-    where: papers_bool_exp
-  ): papers_aggregate!
-
-  # fetch data from the table: "papers" using primary key columns
-  papers_by_pk(id: String!): papers
-}
-
diff --git a/migrations/00000000000000_diesel_initial_setup/down.sql b/migrations/00000000000000_diesel_initial_setup/down.sql
deleted file mode 100644
index 73d8541..0000000
--- a/migrations/00000000000000_diesel_initial_setup/down.sql
+++ /dev/null
@@ -1,7 +0,0 @@
--- This file was automatically created by Diesel to setup helper functions
--- and other internal bookkeeping. This file is safe to edit, any future
--- changes will be added to existing projects as new migrations.
-
-DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass);
-DROP FUNCTION IF EXISTS diesel_set_updated_at();
-DROP EXTENSION pg_trgm;
\ No newline at end of file
diff --git a/migrations/00000000000000_diesel_initial_setup/up.sql b/migrations/00000000000000_diesel_initial_setup/up.sql
deleted file mode 100644
index 3771d5e..0000000
--- a/migrations/00000000000000_diesel_initial_setup/up.sql
+++ /dev/null
@@ -1,38 +0,0 @@
--- This file was automatically created by Diesel to setup helper functions
--- and other internal bookkeeping. This file is safe to edit, any future
--- changes will be added to existing projects as new migrations.
-
-
-
-
--- Sets up a trigger for the given table to automatically set a column called
--- `updated_at` whenever the row is modified (unless `updated_at` was included
--- in the modified columns)
---
--- # Example
---
--- ```sql
--- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW());
---
--- SELECT diesel_manage_updated_at('users');
--- ```
-CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$
-BEGIN
-    EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
-                    FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl);
-END;
-$$ LANGUAGE plpgsql;
-
-CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$
-BEGIN
-    IF (
-        NEW IS DISTINCT FROM OLD AND
-        NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
-    ) THEN
-        NEW.updated_at := current_timestamp;
-    END IF;
-    RETURN NEW;
-END;
-$$ LANGUAGE plpgsql;
-
-CREATE EXTENSION pg_trgm;
\ No newline at end of file
diff --git a/migrations/2020-04-29-090350_create_papers/down.sql b/migrations/2020-04-29-090350_create_papers/down.sql
deleted file mode 100644
index 37c67c7..0000000
--- a/migrations/2020-04-29-090350_create_papers/down.sql
+++ /dev/null
@@ -1 +0,0 @@
-DROP TABLE papers;
\ No newline at end of file
diff --git a/migrations/2020-04-29-090350_create_papers/up.sql b/migrations/2020-04-29-090350_create_papers/up.sql
deleted file mode 100644
index 6025720..0000000
--- a/migrations/2020-04-29-090350_create_papers/up.sql
+++ /dev/null
@@ -1,17 +0,0 @@
-CREATE TABLE papers (
-  id VARCHAR PRIMARY KEY,
-  title TEXT NOT NULL,
-  year SMALLINT,
-  paper_abstract TEXT,
-  entities TEXT[],
-  fields_of_study TEXT[],
-  pdf_urls TEXT[],
-  doi TEXT,
-  doi_url TEXT,
-  s2_url TEXT,
-  in_citations TEXT[],
-  out_citations TEXT[]
-);
-
-CREATE INDEX title_trgm_idx ON papers USING GIST (title gist_trgm_ops);
-CREATE INDEX title_idx ON papers(title);
diff --git a/migrations/2020-04-29-111644_create_authors/down.sql b/migrations/2020-04-29-111644_create_authors/down.sql
deleted file mode 100644
index 38bcaf0..0000000
--- a/migrations/2020-04-29-111644_create_authors/down.sql
+++ /dev/null
@@ -1,2 +0,0 @@
-DROP TABLE authors;
-DROP TABLE paper_authors;
diff --git a/migrations/2020-04-29-111644_create_authors/up.sql b/migrations/2020-04-29-111644_create_authors/up.sql
deleted file mode 100644
index d7a5065..0000000
--- a/migrations/2020-04-29-111644_create_authors/up.sql
+++ /dev/null
@@ -1,13 +0,0 @@
-CREATE TABLE authors (
-  id VARCHAR PRIMARY KEY,
-  name VARCHAR NOT NULL
-);
-
-CREATE TABLE paper_authors (
-  author_id VARCHAR NOT NULL,
-  paper_id VARCHAR NOT NULL,
-  PRIMARY KEY(author_id, paper_id)
-);
-
-CREATE INDEX paper_authors_author_id_idx ON paper_authors (author_id);
-CREATE INDEX paper_authors_paper_id_idx ON paper_authors (paper_id);
\ No newline at end of file
diff --git a/migrations/2020-05-01-214409_create_functions/down.sql b/migrations/2020-05-01-214409_create_functions/down.sql
deleted file mode 100644
index 71cada2..0000000
--- a/migrations/2020-05-01-214409_create_functions/down.sql
+++ /dev/null
@@ -1,3 +0,0 @@
-DROP FUNCTION cites;
-DROP FUNCTION num_citations;
-
diff --git a/migrations/2020-05-01-214409_create_functions/up.sql b/migrations/2020-05-01-214409_create_functions/up.sql
deleted file mode 100644
index ab05d29..0000000
--- a/migrations/2020-05-01-214409_create_functions/up.sql
+++ /dev/null
@@ -1,14 +0,0 @@
-CREATE FUNCTION cites(paper_row papers, limit_ integer)
-RETURNS SETOF papers AS $$
-  SELECT p2.* FROM papers p1
-  JOIN papers p2 ON p2.id=ANY(p1.out_citations)
-  WHERE p1.id = paper_row.id AND p2.id != paper_row.id
-  LIMIT limit_
-$$ LANGUAGE SQL STABLE;
-
-
-CREATE FUNCTION num_citations(paper_row papers)
-RETURNS integer AS $$
-  SELECT array_length(in_citations, 1) FROM papers 
-  WHERE id = paper_row.id
-$$ LANGUAGE SQL STABLE;
\ No newline at end of file
diff --git a/migrations/.gitkeep b/papergraph.graphql
similarity index 100%
rename from migrations/.gitkeep
rename to papergraph.graphql
diff --git a/papergraph.schema b/papergraph.schema
new file mode 100644
index 0000000..053852b
--- /dev/null
+++ b/papergraph.schema
@@ -0,0 +1,37 @@
+type Paper {
+  paper_id
+  title
+  abstract
+  year
+  s2_url
+  doi
+  doi_url
+  pdf_urls
+  fields_of_study
+  entities
+
+  authors
+  cites  
+}
+
+<paper_id>: string @index(exact) .
+<title>: string @index(term) .
+<abstract>: string  .
+<year>: int @index(int) .
+<s2_url>: string .
+<doi>: string .
+<doi_url>: string .
+<pdf_urls>: [string] .
+<fields_of_study>: [string] .
+<entities>: [string] .
+
+<authors>: [uid] @reverse .
+<cites>: [uid] @count @reverse .
+
+type Author {
+  author_id
+  name
+}
+
+<author_id>: string @index(exact) .
+<name>: string @index(term) .
\ No newline at end of file
diff --git a/src/bin/papergraph.rs b/src/bin/papergraph.rs
index e57e9a5..00c0f4b 100644
--- a/src/bin/papergraph.rs
+++ b/src/bin/papergraph.rs
@@ -6,7 +6,8 @@ use papergraph::io::Paper;
 use serde_json;
 use std::env;
 use std::fs::File;
-use std::io::{self, BufRead};
+use std::io::{self, BufRead, Write};
+use std::io::BufWriter;
 
 #[derive(Clap)]
 #[clap(version = "0.1.0", author = "Denny Britz <dennybritz@gmail.com>")]
@@ -18,13 +19,13 @@ struct Opts {
 #[derive(Clap)]
 enum SubCommand {
     /// Insert records into the database
-    #[clap(name = "insert", version = "0.1")]
-    Insert(Insert),
+    #[clap(name = "make-triples", version = "0.1")]
+    MakeTriples(MakeTriples),    
 }
 
-/// Insert records into the database
+/// Generate RDF Triples
 #[derive(Clap, Debug)]
-struct Insert {
+struct MakeTriples {
     /// Read JSON records from this path
     #[clap(short = "d", long = "data")]
     data: String,
@@ -49,11 +50,7 @@ struct Insert {
     field_of_study: Vec<String>,
 }
 
-fn insert(opts: Insert) {
-    log::info!("establishing db connection");
-    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
-    let conn = papergraph::db::utils::establish_connection(&database_url);
-
+fn make_triples(opts: MakeTriples) {
     log::info!("reading records from {}", &opts.data);
     let file = File::open(&opts.data).expect("failed to open data file");
     let reader: Box<dyn BufRead> = if opts.data.ends_with(".gz") {
@@ -73,14 +70,16 @@ fn insert(opts: Insert) {
                 .iter()
                 .any(|fos| p.fields_of_study.contains(fos))
         });
-
-    for chunk in &records.chunks(8192) {
-        let mut batch = papergraph::db::utils::RecordBatch::new();
-        let papers: Vec<Paper> = chunk.collect();
-        for paper in papers.iter() {
-            batch.append(&mut papergraph::db::utils::s2_record_to_batch(paper));
+    
+    let mut out_writer = BufWriter::new(std::io::stdout());
+    for record in records {
+        let triples = papergraph::dgraph::s2_record_to_rdf_triples(&record);
+        for triple in triples.iter() {
+            match write!(out_writer, "{}\n", &triple) {
+                Ok(_) => {},
+                Err(e) => log::error!("{}", e)
+            }
         }
-        batch.insert(&conn).expect("database insert failed");
     }
 }
 
@@ -90,6 +89,6 @@ fn main() {
     let opts: Opts = Opts::parse();
 
     match opts.cmd {
-        SubCommand::Insert(opts) => insert(opts),
+        SubCommand::MakeTriples(opts) => make_triples(opts),
     }
 }
diff --git a/src/db/mod.rs b/src/db/mod.rs
deleted file mode 100644
index 52f1d6b..0000000
--- a/src/db/mod.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-pub mod models;
-pub mod schema;
-pub mod utils;
diff --git a/src/db/models.rs b/src/db/models.rs
deleted file mode 100644
index bb55d94..0000000
--- a/src/db/models.rs
+++ /dev/null
@@ -1,33 +0,0 @@
-use super::schema::{authors, paper_authors, papers};
-use diesel::{Identifiable, Insertable, Queryable};
-
-#[derive(Debug, Identifiable, Insertable, Queryable, AsChangeset)]
-#[table_name = "papers"]
-pub struct Paper<'a> {
-    pub id: &'a str,
-    pub title: &'a str,
-    pub year: Option<i16>,
-    pub paper_abstract: &'a str,
-    pub fields_of_study: &'a Vec<String>,
-    pub entities: &'a Vec<String>,
-    pub pdf_urls: &'a Vec<String>,
-    pub s2_url: &'a str,
-    pub doi: &'a str,
-    pub doi_url: &'a str,    
-    pub in_citations: &'a Vec<String>,
-    pub out_citations: &'a Vec<String>,
-}
-
-#[derive(Debug, Identifiable, Insertable, Queryable, AsChangeset)]
-#[table_name = "authors"]
-pub struct Author<'a> {
-    pub id: &'a str,
-    pub name: &'a str,
-}
-
-#[derive(Debug, Insertable, Queryable, AsChangeset)]
-#[table_name = "paper_authors"]
-pub struct PaperAuthor<'a> {
-    pub author_id: &'a str,
-    pub paper_id: &'a str,
-}
diff --git a/src/db/schema.rs b/src/db/schema.rs
deleted file mode 100644
index dc93155..0000000
--- a/src/db/schema.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-table! {
-    authors (id) {
-        id -> Varchar,
-        name -> Varchar,
-    }
-}
-
-table! {
-    paper_authors (author_id, paper_id) {
-        author_id -> Varchar,
-        paper_id -> Varchar,
-    }
-}
-
-table! {
-    papers (id) {
-        id -> Varchar,
-        title -> Text,
-        year -> Nullable<Int2>,
-        paper_abstract -> Nullable<Text>,
-        entities -> Nullable<Array<Text>>,
-        fields_of_study -> Nullable<Array<Text>>,
-        pdf_urls -> Nullable<Array<Text>>,
-        doi -> Nullable<Text>,
-        doi_url -> Nullable<Text>,
-        s2_url -> Nullable<Text>,
-        in_citations -> Nullable<Array<Text>>,
-        out_citations -> Nullable<Array<Text>>,
-    }
-}
-
-allow_tables_to_appear_in_same_query!(
-    authors,
-    paper_authors,
-    papers,
-);
diff --git a/src/db/utils.rs b/src/db/utils.rs
deleted file mode 100644
index c80f490..0000000
--- a/src/db/utils.rs
+++ /dev/null
@@ -1,113 +0,0 @@
-use diesel::pg::PgConnection;
-use diesel::prelude::*;
-use diesel::pg::upsert::excluded;
-use itertools::Itertools;
-
-pub use super::{models, schema};
-
-pub fn establish_connection(database_url: &str) -> PgConnection {
-    PgConnection::establish(database_url).expect(&format!("Error connecting to {}", database_url))
-}
-
-/// Each json record from Semantic Scholar maps to multiple database rows
-/// which are accumulated in a `RecordBatch`
-pub struct RecordBatch<'a> {
-    pub papers: Vec<models::Paper<'a>>,
-    pub authors: Vec<models::Author<'a>>,
-    pub paper_authors: Vec<models::PaperAuthor<'a>>,
-}
-
-impl<'a> RecordBatch<'a> {
-    /// Creates a new empty RecordBatch
-    pub fn new() -> Self {
-        RecordBatch {
-            papers: vec![],
-            authors: vec![],
-            paper_authors: vec![],
-        }
-    }
-
-    /// Inserts this RecordBatch into the database
-    pub fn insert(&self, conn: &PgConnection) -> Result<(), diesel::result::Error> {
-        let chunk_size = 4096;
-
-        log::info!("inserting {} papers", &self.papers.len());
-        for papers in &self.papers.iter().chunks(chunk_size) {
-            let papers: Vec<&models::Paper<'a>> = papers.collect();
-            diesel::insert_into(schema::papers::table)
-                .values(papers)
-                .on_conflict(schema::papers::id)
-                .do_update()
-                .set(schema::papers::id.eq(excluded(schema::papers::id)))
-                .execute(conn)?;
-        }
-
-        log::info!("inserting {} authors", &self.authors.len());
-        for chunk in &self.authors.iter().chunks(chunk_size) {
-            let chunk: Vec<&models::Author<'a>> = chunk.collect();
-            diesel::insert_into(schema::authors::table)
-                .values(chunk)
-                .on_conflict_do_nothing()
-                .execute(conn)?;
-        }
-
-        for chunk in &self.paper_authors.iter().chunks(chunk_size) {
-            let chunk: Vec<&models::PaperAuthor<'a>> = chunk.collect();
-            diesel::insert_into(schema::paper_authors::table)
-                .values(chunk)
-                .on_conflict_do_nothing()
-                .execute(conn)?;
-        }
-
-        return Ok(());
-    }
-
-    /// Moves all elements of other into this RecordBatch
-    pub fn append(&mut self, other: &mut RecordBatch<'a>) {
-        self.papers.append(&mut other.papers);
-        self.authors.append(&mut other.authors);
-        self.paper_authors.append(&mut other.paper_authors);
-    }
-}
-
-pub fn s2_record_to_batch<'a>(record: &'a crate::io::Paper) -> RecordBatch<'a> {
-    let paper = models::Paper {
-        id: &record.id,
-        title: &record.title,
-        year: record.year.map(|y| y as i16),
-        paper_abstract: &record.paper_abstract,
-        fields_of_study: &record.fields_of_study,
-        entities: &record.entities,
-        pdf_urls: &record.pdf_urls,
-        s2_url: &record.s2_url,
-        doi: &record.doi,
-        doi_url: &record.doi_url,
-        in_citations: &record.in_citations,
-        out_citations: &record.out_citations,
-    };
-
-    // TODO: Is it correct to filter out authors without ID!?
-    let authors: Vec<models::Author> = record
-        .authors
-        .iter()
-        .filter(|a| a.ids.len() > 0)
-        .map(|a| models::Author {
-            id: a.ids.get(0).unwrap(),
-            name: &a.name,
-        })
-        .collect();
-
-    let paper_authors: Vec<models::PaperAuthor> = authors
-        .iter()
-        .map(|a| models::PaperAuthor {
-            paper_id: &record.id,
-            author_id: &a.id,
-        })
-        .collect();
-
-    RecordBatch {
-        papers: vec![paper],
-        authors,
-        paper_authors,
-    }
-}
diff --git a/src/dgraph.rs b/src/dgraph.rs
new file mode 100644
index 0000000..a515bd1
--- /dev/null
+++ b/src/dgraph.rs
@@ -0,0 +1,101 @@
+enum RDFObject<'a> {
+    Literal(&'a str),
+    UID(&'a str),
+}
+
+use RDFObject::Literal;
+use RDFObject::UID;
+
+impl<'a> RDFObject<'a> {
+    pub fn string(&self) -> String {
+        match self {
+            RDFObject::Literal(s) => {
+                let escaped = s
+                    .replace("\\", "\\\\")
+                    .replace(r###"""###, r###"\""###)
+                    .replace("\n", "\\n")
+                    .replace("\r", "\\r");
+                format!("\"{}\"", escaped)
+            }
+            RDFObject::UID(s) => format!("{}", s),
+        }
+    }
+}
+
+struct Triple<'a> {
+    pub subject: RDFObject<'a>,
+    pub predicate: &'a str,
+    pub object: RDFObject<'a>,
+}
+
+impl<'a> Triple<'a> {
+    pub fn new(subject: RDFObject<'a>, predicate: &'a str, object: RDFObject<'a>) -> Self {
+        Triple {
+            subject,
+            predicate,
+            object,
+        }
+    }
+
+    pub fn str(&self) -> String {
+        format!(
+            "{} {} {} .",
+            &self.subject.string(),
+            self.predicate,
+            self.object.string()
+        )
+    }
+}
+
+pub fn s2_record_to_rdf_triples<'a>(record: &'a crate::io::Paper) -> Vec<String> {
+    let mut res = vec![];
+    let id = &record.id;
+    let blank = format!("_:{}", id);
+    let blank: &str = blank.as_ref();
+
+    res.push(Triple::new(UID(blank), "<dgraph.type>", Literal("Paper")).str());
+    res.push(Triple::new(UID(blank), "<paper_id>", Literal(&record.id)).str());
+    res.push(Triple::new(UID(blank), "<title>", Literal(&record.title)).str());
+    res.push(Triple::new(UID(blank), "<abstract>", Literal(&record.paper_abstract)).str());
+    if let Some(year) = record.year {
+        let year = format!("{}", year);
+        res.push(Triple::new(UID(blank), "<year>", Literal(&year)).str());
+    }
+    res.push(Triple::new(UID(blank), "<s2_url>", Literal(&record.s2_url)).str());
+    res.push(Triple::new(UID(blank), "<doi>", Literal(&record.doi)).str());
+    res.push(Triple::new(UID(blank), "<doi_url>", Literal(&record.doi_url)).str());
+
+    for pdf_url in record.pdf_urls.iter() {
+        res.push(Triple::new(UID(blank), "<pdf_urls>", Literal(pdf_url)).str());
+    }
+    for fos in record.fields_of_study.iter() {
+        res.push(Triple::new(UID(blank), "<fields_of_study>", Literal(fos)).str());
+    }
+    for entity in record.entities.iter() {
+        res.push(Triple::new(UID(blank), "<entities>", Literal(entity)).str());
+    }
+
+    for author in record.authors.iter() {
+        for id in author.ids.first() {
+            let author_blank = format!("_:{}", id);
+            res.push(Triple::new(UID(&author_blank), "<dgraph.type>", Literal("Author")).str());
+            res.push(Triple::new(UID(&author_blank), "<name>", Literal(&author.name)).str());
+            res.push(Triple::new(UID(&author_blank), "<author_id>", Literal(id)).str());
+            res.push(Triple::new(UID(blank), "<authors>", UID(&author_blank)).str());
+        }
+    }
+
+    for citation in record.out_citations.iter() {
+        let cit_blank = format!("_:{}", citation);
+        res.push(Triple::new(UID(&cit_blank), "<dgraph.type>", Literal("Paper")).str());
+        res.push(Triple::new(UID(blank), "<cites>", UID(&cit_blank)).str());
+    }
+
+    for citation in record.in_citations.iter() {
+        let cit_blank = format!("_:{}", citation);
+        res.push(Triple::new(UID(&cit_blank), "<dgraph.type>", Literal("Paper")).str());
+        res.push(Triple::new(UID(&cit_blank), "<cites>", UID(blank)).str());
+    }
+
+    res
+}
diff --git a/src/lib.rs b/src/lib.rs
index 50c038d..2404bc5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,2 @@
-#[macro_use]
-extern crate diesel;
-
-pub mod db;
+pub mod dgraph;
 pub mod io;