Ability to use graphql-ws instead of subscription-transport-ws

[Amareis]

This issue pertains to the following package(s):

• GraphQL Playground - Electron App
• GraphQL Playground HTML
• GraphQL Playground
• GraphQL Playground Express Middleware
• GraphQL Playground Hapi Middleware
• GraphQL Playground Koa Middleware
• GraphQL Playground Lambda Middleware

subscription-transport-ws is (sort of) deprecated now: https://github.com/apollographql/subscriptions-transport-ws#graphql-ws
I think it's not really hard to implement grapqhl-ws support.

[Sytten]

The community has moved to graphql-ws now, I think it would better for playground to move too.

[brettjashford]

there's a PR to add this in graphql-playground-react #1295

[maxpain]

Any updates?

[faboulaws]

Ideally, the subscription client API should be a pluggable API. The subscription-transport-ws can be the default Handler (or Interface implementation) for backward compatibility. graphql-ws or other implementation/transport (such as SSE) can be used if wanted.

[jspizziri]

@acao , any updates on this?

[elashpear]

For those looking for an alternative client that does support graphql-ws until this issue is resolved, I recommend another FLOSS client called Altair: https://altair.sirmuel.design/