go-api-gateway

This is a simple API gateway written in GO which can be used to redirect requests to other services. This gateway utilises gRPC to communicate with the services hence the .proto files.

The services which can be called are as follows:

• Auth Service
• Course Service
• Timetable Service

Prerequisites

Since this gateway uses gRPC, it requires the protocol buffer compiler installed. Additionally, this repository uses a Makefile to compile the .proto files and run the gateway itself. Hence, it requires make to be installed.

Setup

To run the gateway, simply cd into the repository and run the following command:

make start

Once this is run, the gateway will be running on port 3000.

Endpoints

• POST /auth/register - Register a new user. The request body should be a JSON object similar to the following:

{
  "username": "Bece",
  "password": "thequickbrownfoxjumpedoverthelazydog"
}

• POST /auth/login - Login a user. The request body should be a JSON object similar to the following:

{
  "username": "Bece",
  "password": "thequickbrownfoxjumpedoverthelazydog"
}

• GET /course/{id} - Get a course by ID.

• POST /course - Create a new course. The request body should be a JSON object similar to the following:

{
  "course": {
    "id": "MH1301",
    "name": "Discrete Mathematics",
    "description": "Teaches the basics of discrete mathematics",
    "schedule": [
      {
        "name": "Discrete Mathematics",
        "index": "03669",
        "days": [
          {
            "day": "Monday",
            "timings": [
              {
                "start": 10,
                "end": 13
              }
            ]
          },
          {
            "day": "Wednesday",
            "timings": [
              {
                "start": 18,
                "end": 19
              }
            ]
          }
        ]
      }
    ]
  }
}

• DELETE /course/{id} - Delete a course by ID.

• GET /timetable/{id} - Get a timetable by ID.

• POST /timetable - Create a new timetable. The request body should be a JSON object similar to the following:

{
  "courses": ["MH1300", "MH1301"]
}

All the above endpoints are relative to the base URL of the gateway (Default: http://localhost:3000).

The endpoints prefixed with /course and /timetable require a bearer token which is generated as the response of the /auth/login endpoint.