Show a message saying invalid graphql endpoint if it cannot introspect

[karthikvt26]

➜ ~ gq http://localhost:8080

Error: Network error: Unexpected token N in JSON at position 0
at new ApolloError (~/.nvm/versions/node/v10.1.0/lib/node_modules/graphqurl/node_modules/apollo-client/bundle.umd.js:124:32)
at ~/.nvm/versions/node/v10.1.0/lib/node_modules/graphqurl/node_modules/apollo-client/bundle.umd.js:1248:45
at ~/.nvm/versions/node/v10.1.0/lib/node_modules/graphqurl/node_modules/apollo-client/bundle.umd.js:1680:21
at Array.forEach ()
at /.nvm/versions/node/v10.1.0/lib/node_modules/graphqurl/node_modules/apollo-client/bundle.umd.js:1679:22
at Map.forEach ()
at QueryManager.broadcastQueries (/.nvm/versions/node/v10.1.0/lib/node_modules/graphqurl/node_modules/apollo-client/bundle.umd.js:1672:26)
at ~/.nvm/versions/node/v10.1.0/lib/node_modules/graphqurl/node_modules/apollo-client/bundle.umd.js:1175:35

Expectation: Invalid GraphQL endpoint.

[UtkarshGupta-CS]

@karthikvt26 Is http://localhost:8080/ your graphql endpoint?

Usually, you can set custom graphql endpoint like http://localhost:8080/graphql or http://localhost:8080/graphqlApi.

[tomodutch]

I would like to pick this up

[chtnnh]

Hey! Can I pick this up @shahidhk @shraddhaag? Seems like a good place to start!

[shraddhaag]

Hey @chtnnh go ahead! Let us know if you need any help :)

[chtnnh]

Hey @shraddhaag ! Thank you for the confirmation!

Could you help me setup graphqurl on my local? I am running into issue #103

[chtnnh]

Gentle ping @shraddhaag