Merge pull request #2824 from bcgov/csv-streaming

CSV streaming
bcgov · Aug 11, 2023 · 482bd3a · 482bd3a
2 parents 34bf7be + e3dad75
commit 482bd3a
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Showing 8 changed files with 383 additions and 310 deletions.
diff --git a/api/package-lock.json b/api/package-lock.json
diff --git a/api/package.json b/api/package.json
@@ -63,6 +63,7 @@
     "node-fetch": "^2.6.7",
     "object-path": "^0.11.8",
     "pg": "~8.7.0",
+    "pg-cursor": "^2.10.1",
     "pg-format": "^1.0.4",
     "proj4": "^2.6.3",
     "qs": "~6.9.7",
@@ -95,6 +96,7 @@
     "@types/mocha": "~8.0.1",
     "@types/node": "^17.0.23",
     "@types/pg": "~7.14.4",
+    "@types/pg-cursor": "^2.7.0",
     "@types/supertest": "^2.0.12",
     "@types/uuid": "~8.3.0",
     "@types/yamljs": "~0.2.31",

diff --git a/api/src/app.ts b/api/src/app.ts
@@ -107,8 +107,13 @@ initialize({
       message: 'unexpected error',
       error: error?.message + error?.stack || error
     });
+    if (!res.headersSent) {
+      // streaming responses cannot alter headers after dispatch
+      res.status(error.status || error.code || 500).json(error);
+    } else {
+
+    }
 
-    res.status(error.status || error.code || 500).json(error);
   }
 });