siddharthborderwala / learn-graphql

GraphQL

Overview

• A query language for apis
• Super fast
• Gives more power to requests

Types

• Scalar Types

  • String
  • Boolean
  • Int
  • Float
  • ID

• Custom Types

Requirements

• Type definitions

  • ! suffixing a Scalar type signifies the value cannot be null

const typeDefs = `
  type Query {
    hello: String!
    name: String!,
    location: String!,
    bio: String!
  }
`;

• Resolvers

const resolvers = {
  Query: {
    hello() {
      return 'This is my first query!';
    },
    name() {
      return 'Siddharth';
    },
    location() {
      return 'Surat, IN';
    },
    bio() {
      return 'Like to sleep';
    },
  },
};

• Operation Arguments - To pass data from client to server