Error with WebSockets and headers containing arrays

Expected Behavior I expect to be able to connect to the server via WebSocketLink with authentication headers.

Actual Behavior When I have an array in my headers parameters I get the error “start received before the connection is initialised”.

This may be an error with Hasura or the GraphQL engine. I found the error message in the source here, https://github.com/hasura/graphql-engine/blob/master/server/src-lib/Hasura/GraphQL/Transport/WebSocket.hs#L239.

I’ve submitted an issue to apollographql/apollo-link as well, https://github.com/apollographql/apollo-link/issues/1109.

A simple reproduction When including x-hasura-allowed-roles as an array, I get the mentioned error. When I remove x-hasura-allowed-roles and/or replace the array with an empty string, everything works as expected.

  const wsLink = new WebSocketLink({
    uri: GRAPHQL_WSS_DEVELOPMENT,
    options: {
      lazy: true,
      reconnect: true,
      connectionParams: {
        headers: {
          'authorization': "Bearer eyJ0eX...",
          'x-hasura-auth0-user-id': "auth0|5d1...",
          'x-hasura-default-role': "userFree",
          'x-hasura-allowed-roles': ["admin", "driver", "userFree", "userPaid"],
          'x-hasura-email': "[e-mail]",
          'x-hasura-role': "driver",
        }
      }
    }
  })

[ighormartins]

Sorry I missed this.

Should I just be putting ‘authorization’: “Bearer eyJ0eX…” into the header and having Hasura read information out of the encrypted token?

Yes, graphql-engine will read the session data from the token (the token isn’t encrypted, it is signed).

Actually, I think this might be a problem in some cases. I’m using JWT auth mode, however, for anonymous users before signing-in, I have to send a header with the x-hasura-org-id. How can I do it?

[mehtadev17]

@marionschleifer When you say “string array” https://hasura.io/docs/1.0/graphql/core/auth/authentication/jwt.html#claims-map

does it mean an array of strings: ["editor","user", "mod"] or a string containing an array: "[\"editor\",\"user\", \"mod\"]"