Different urls for subscription and query

[omarzouk]

Hi! Let me start by saying that this is an amazing project! thank you so much for all the work you have done!

We have a GraphQL server that we would like to stitch with other services. This server however, is running the query and the subscription services on two different endpoint urls, / and /websocket. We also want to pass in an Authorization url parameter to the /websocket which comes from a header that is passed in by the user.

So ideally it would be like this
query:
https://api.soundtrackyourbrand.com/v2/
and subscription:
wss://api.soundtrackyourbrand.com/v2/websocket?Authorization=Bearer%20xxxx

So basically the resolver needs to use a different url for the subscription path. I tried creating 2 sources, 1 for query and 1 for subscription in the meshrc yaml and stitching them, but the problem is that when providing the /websocket url, the serve is unable to fetch the schema from that url.

What is the best way I can achieve this?

I have been thinking about using a custom websocketImpl and that would solve the url issue, but won't allow me to pass in the authorization parameter because the headers are not forwarded to the websocketImpl, so I can't add it as an argument for the url.

The other path I'm thinking of now, is to use 2 sources, and in the subscription source, provide the /websocket url, and define a custom fetch function to trim the url and get the schema from the / endpoint.

Any pointers or ideas would be really appreciated!

[omarabid]

@omarzouk How did you solve this?

[MaceM8]

Hi, for custom subscription URL you can use subscriptionsEndpoint in your source config. See here.