Implementing GraphQL APIs for users, posts, and interactions

Implementing GraphQL APIs for users, posts, and interactions involves setting up a NestJS project, defining schemas and Data Transfer Object (DTO)s, and creating resolvers to handle GraphQL queries and mutations. This process ensures our application can manage users, posts, and interactions efficiently.

In the upcoming sections, let’s set up the project and build the main modules for our application.

Setting up the project

To get started, we need to set up our NestJS project and install the necessary dependencies for GraphQL and MongoDB. Let’s do so by following these simple steps:

1. First, initialize a new NestJS project using the Nest CLI:

   $ npm i -g @nestjs/cli
   $ nest new nect-me
   $ cd nect-me

   This sets up a new NestJS project named nect-me; remember, you can choose any name that sounds good to you.

2. Next, install the required dependencies for GraphQL and MongoDB integration:

   $ npm install @nestjs...