Apollo Router Subscriptions

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1

I’m trying Apollo Router with my federation graphs, but i can’t get the subscriptions working.
Does Apollo Router support subscriptions with federation graphs?

rgoncalves@kravex-server ~ $ npx diagnose-endpoint@1.0.12 --endpoint=ws://127.0.0.1:4000/
npx: installed 34 in 3.313s
Diagnosing ws://127.0.0.1:4000/
(node:69418) ExperimentalWarning: The dns.promises API is experimental
⚠️  Failed to diagnose what went wrong. Here's the error:  { UnsupportedProtocolError: Unsupported protocol "ws:"
    at normalizeArguments (/Users/rgoncalves/.npm/_npx/69418/lib/node_modules/diagnose-endpoint/node_modules/got/dist/source/core/index.js:515:23)
    at got (/Users/rgoncalves/.npm/_npx/69418/lib/node_modules/diagnose-endpoint/node_modules/got/dist/source/create.js:112:39)
    at /Users/rgoncalves/.npm/_npx/69418/lib/node_modules/diagnose-endpoint/index.js:34:35
    at Object.<anonymous> (/Users/rgoncalves/.npm/_npx/69418/lib/node_modules/diagnose-endpoint/index.js:171:3)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
  name: 'UnsupportedProtocolError',
  code: undefined,
  timings: undefined } Unsupported protocol "ws:"
2

No, apollo router does not support subscriptions, just queries and mutations. The recommendation is to make a separate, dedicated subscription service using apollo server.