graphql-go-tutorial

A go implementation of the graphql server, that is compatible with the Apollo demo: https://github.com/apollographql/graphql-tutorial

Running the GraphQL server

The server runs on port 400. To run execute

$ go run  

Testing with Curl

The server can be tested using curl. The query and mutations are described in the sub-sections below. In each case you can use the following curl command to POST the requests. You can optionally pass the response through jq to make it easier to read.

curl -XPOST http://localhost:4000/graphql -H 'Content-Type: application/json' -d \
'
   <pay load goes here>
' | jq

Queries

This will get all channels

{"query":"query ChannelsListQuery{channels{id name}}","operationName":"ChannelsListQuery"}

This will return channel details for the specified channel id

{"query":"query ChannelDetailsQuery($channelId: ID!) {channel(id: $channelId) {id name messages{id text}}}","variables":{"channelId":"1"},"operationName":"ChannelDetailsQuery"}

Mutations

This will add a new message

{"query":"mutation addMessage($message: MessageInput!) {addMessage(message: $message) {id text}}","variables":{"message":{"channelId":"1","text":"Yo"}},"operationName":"addMessage"}

Testing with Apollo GraphQL Tutorial

Checkout the apollo Tutorial.

git clone  https://github.com/apollographql/graphql-tutorial

Switch to the t7-end branch

cd graphql-tutorial
git checkout t7-end

With the golang server running, start the apollo Client.

cd client
npm install && npm start

The browser should open on localhost:3000. You can now use the UI to test drive the server.