Simple graphQL server for the frontend chat app

To run the app locally on port 4000, you just need to run the following scripts (written in bold)

• yarn - installs all dependencies
• yarn serve - build the app package and serves it from the local dist folder

This app was build with graphql-yoga. Main reasons being:

• Build on-top of express (node based web-server)
• Built-in support for graphQL subscription using websockets (pubsub pattern)
• Works quite nicely with the front-end chat app built with Apollo.
• Graphql playground to test your resolvers.

Mock testing in graphQL playground

Once the project and is listening to port 4000, you can open up localhost:4000 on your browser and tests many mock services (aka resolvers functions) in the playground.

for eg. A request as given below:

query {
  getMockUser {
    name
    email
    privateChats {
      senderName
      receiverName
      message
    }
    publicChats {
      senderName
      message
      created
    }
  }
}

will return a response as below.

{
  "data": {
    "getMockUser": {
      "name": "Bijay",
      "email": "[email protected]",
      "privateChats": [
        {
          "senderName": "Bijay",
          "receiverName": "Bijay v2",
          "message": "Hello myself :)"
        }
      ],
      "publicChats": [
        {
          "senderName": "Bijay",
          "message": "Hello eveyone",
          "created": "01/03/2021"
        }
      ]
    }
  }
}