Introduction:

• This is a server side application that reads user details and saves them in mongodb database, aswell as queries them from database too.

Installation:

• Clone or fork this repository into your machine.
• Install NodeJS in your system.
• npm install

Connecting database:

• Copy and paste your mongodb database's connection string into env file.
• If you are connectiing to a cloud hosted database make sure you register your device's ip addres (You will see abutton called "Add Curent IP Address" inside connect prompt.)

Run:

• npm run start:dev

Features:

• Open graphql playground -http://localhost:3000/graphql
• Save user data using mutaion.
• Retrive user data using query.

Exploring code base:

• If you see inside input-type folder, there is a file that defines the structure of data that we can give input to our mutation and this where the input validation is also carried out.

• If you see object-type folder, there is a file that defines the structue of data that we can output from our query.

• If you see inside database folder, there is file that defines the structue of our mongodb documents.

• If you see inside user.resolver.ts, there is methods decorated by mutation and query decorators. Those are the end points of our application.

  • Mutation is responsible for handling incoming data.
  • Query is responsible for serving requested data.

• Al the database operations are done inside user.service.ts.

  • Mongoose modle is injected to access a document instance and perform database operations on it.

GraphQL Play Ground: mutation { creatUser( createUser: { fullName: "" gender: "" phoneNumber: "" email: "" address: "" nationality: "" dateOfBirth: "2023-09-09T14:30:00.000+00:00" education: "" preferedModeOfContact: " } ) { fullName dateOfBirth } }

        query {
        getAllUsers {
           id
           fullName
           gender
           phoneNumber
           email
           address
           nationality
           dateOfBirth
           education
           preferedModeOfContact
        }
        }

        query {
        getUser(id: "") {
           id
           fullName
           gender
        }
        }

        mutation {
        updateUser(
           id: ""
           updateUser: {
              fullName: ""
              gender: ""
              phoneNumber: ""
              email: ""
              address: ""
              nationality: ""
              dateOfBirth: "2023-09-09T14:30:00.000+00:00"
              education: ""
              preferedModeOfContact: ""
           }
        ) {
           id
           fullName
        }
        }

        mutation {
        deleteUser(id: "")
        }