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GraphiQL.createFetcher does not work for subscriptions-transport-ws

See original GitHub issue

As shown in this PR on express-graphql:, I started the graphql server with subscription using legacy subscriptions-transport-ws.

Then on the client side I create fetcher like this:

window.GraphiQL.createFetcher({url: fetchURL, subscriptionUrl: ${safeSerialize(

Then I got error as shown in the below screenshot: Screen Shot 2021-02-10 at 9 29 46 PM

The same client side code works if I started a graphql server using graphql-ws though:

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Reactions:1
  • Comments:12 (7 by maintainers)

github_iconTop GitHub Comments

acaocommented, Mar 29, 2021

@junminstorage introduced the legacyClient option as requested in the above PR, and just made it so that only graphql-ws is tried with subscriptionsUrl since the failover logic is too complex and unnecessary, when most projects are instantiating a custom client instance anyways.

thanks for all your work @junminstorage getting this working in the ecosystem, hoping to help you get everything working nicely here and in express-graphql in the following weeks!

junminstoragecommented, Mar 29, 2021

@acao make sense. thank you!

Read more comments on GitHub >

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