I have a couchdb database connected to retool. While I'm able to run view and get queries, I'm unable to run simple mango queries using find.
The error I get is:
statusCode:422
error:"Unprocessable Entity"
message:"Server is not supported: istio-envoy"
data:null
queryExecutionMetadata:
estimatedResponseSizeBytes:110
resourceTimeTakenMs:56
isPreview:false
resourceType:"couchdb"
lastReceivedFromResourceAt:1677052472012
source:"resource"
The couchdb server is running behind a envoy proxy inside a cluster environment. The other queries work fine, but not the find type of queries. What could be the issue here?
Hey @naman! Do you know what kinds of permissions you’ve given your db? I remember ‘find’ being kind of a unique operation because even though it’s technically just a read, it also requires write permission. Perhaps that’s related?
I'm using a server admin user, so permissions should not be an issue. Besides, I've tried using the same user using Fauxton and using a python library, and I was able to run the same find queries without issues.
We took a look at the code, and this seems to be an error the CouchDB node client throws. For the find query, the response needs to have a header called Server that matches this regex /^CouchDB\/([\d]+)/ (source code here). It seems like your server is istio-envoy, do you know if you're able to change the server header to "CouchDB" instead?
I made the change to send back a custom response header, and it seems to have fixed the issue. Thanks!
I think this functionality of the client library shouldn't depend on a response HTTP header. The server version is also exposed at the root / endpoint for CouchDB installations. That should be a more definitive check when establishing resource connection from inside retool.
