capp-futures

Couchapp for futures baked by couchapp.py.

Push to CouchDB

1. Create .couchapprc in dir futures:

   {
       "env" : {
           "default" : {
               "db" : "http://username:password@localhost:5984/market"
           }
       }
   }
   

2. cp futures/.couchapprc options/

3. make

Usage

Settlement endpoint:

curl 'http://localhost:5984/futures-kbar/_design/profile/_list/settlement/settlement?startkey=\["TX","2020-01-01"\]&endkey=\["TX\ufff0"\]&header=true'

n sec K Bar endpoint, specified via tf argument which stands for timeframe:

curl 'http://localhost:5984/futures-kbar/_design/profile/_list/kbar/by_sym?startkey=\["TX"\]&endkey=\["TX\ufff0"\]&tf=2&include_docs=true&header=true'

curl 'http://localhost:5984/market/_design/profile/_list/kbar/by_sym?startkey=\["TX","2020-03-01"\]&endkey=\["TX",\{\}\]&include_docs=true&tf=3600'

Vol Bar:

curl 'http://localhost:5984/futures-volbar/_design/volprofile/_list/volbar/by_sym?include_docs=true&startkey=\["TX","2020-03-19"]&endkey=\["TX",\{\}\]&tf=60'

Tick Bar:

curl 'http://localhost:5984/market/_design/futures/_list/tickbar/tick/tickbar?startkey=\["TX","2020-01-01"\]&endkey=\["TX\ufff0"\]&tf=3600'

Dev Notes

• By Using sample view function in single ddoc, but with different reduce function, the view index won't be rebuilt.
• https://docs.couchdb.org/en/stable/ddocs/views/intro.html#one-vs-multiple-design-documents
• https://stackoverflow.com/questions/28572449
• Why we need \ufff0 in endkey? https://docs.couchdb.org/en/stable/ddocs/views/collation.html