Apollo VSCode plugin errors when autocompleting subscriptions

Users GraphQL
1

I’m generating an introspection schema from a /graphql endpoint using import {getIntrospectionQuery} from 'graphql';.

If I save that result as a json file and use it to power apollo vscode, then I get intellisense on all my graphql queries, yay! But… with the latest release of subscriptions I wanted to try them out and see what’s available.

I try and trigger intellisense within a subscription block:

subscription MySubscription() {
   // Here...
}

and nothing happens. At least, I don’t get any of the normal suspects.

In the Apollo GraphQL output window, every time I try to trigger intellisense I get:

[Error - 3:22:22 PM] Request textDocument/completion failed.
  Message: Request textDocument/completion failed with message: Cannot read property 'getFields' of undefined
  Code: -32603

Not sure what’s displeasing the Apollo gods now… they sure seem fickle!

1 Like
2

@MichelDiz, can you please look into this?

1 Like
4

Are you referring VSCode plugin: Apollo GraphQL - Visual Studio Marketplace ?

5

Yep that’s the one!

8

Have since switched to using our own dgraph cluster from slash graphql, and upgraded to the latest version of dgraph 20.0.7… still getting the same issue!

9

Actually, after further playing with

@withSubscription

I got it working… I realised when I added the tag, sometimes the schema update would fail with an unspecified error:

0] {"errors":[{"message":"resolving updateGQLSchema failed because rpc error: code = Unknown desc = error occurred updating GraphQL schema, please retry: Transaction has been aborted. Please retry","locations":[{"line":2,"column":5}]}],"data":{"updateGQLSchema":null},"extensions":{"tracing":{"version":1,"startTime":"2020-09-06T05:16:00.271019877Z","endTime":"2020-09-06T05:16:00.362229691Z","duration":91209824}}}

But after flipping the decorator on and off a few times, it eventually worked. Not sure what was wrong, I didn’t really do anything differently.

But at least now it works!