Shadow Talk Microservices were built using the following technologies:

• Node.js
• Express
• MongoDB

This repository contains the source code of the microservices that make up the Shadow Talk application. The microservices are:

• create-session-service: Service for creating a new anonymous session.
• get-session-service: Service for getting an anonymous session information.
• create-post-service: Service for creating a new post.
• get-posts-service: Service for getting posts.

Additionally, the repository contains a sample service (sample-service-template) that can be used as a template for creating new microservices, as well as the source code of the API Gateway that is used to communicate with the microservices from the client.

Each microservice is a Node.js application that uses the Express framework. The microservices are structured as follows:

• src - Contains the source code of the microservice.
  • app.js - The entry point of the microservice with the Express application and routes.
  • models.js - Contains the models of the microservice (used for database operations).
  • schemas.js - Contains the schemas of the microservice (used for validation).
  • settings.js - Contains the settings of the microservice (used for configuration).

Go to each microservice directory and run the following command:

npm install

Before starting the microservices, make sure you have configured the environment variables. For development, you can create a .env file in the root directory of each microservice and add the environment variables there (you can use the .env.example file as a template). For production, you can set the environment variables in the server's environment.*

The following environment variables are used by all microservices:

• PORT - The port the microservice will listen on. Defaults to 3000.
• ALLOWED_ORIGINS - A comma-separated list of allowed origins. Defaults to http://localhost:3000. Used by microservices to only allow requests from the API Gateway.
• DATABASE_URL - The URL of the MongoDB database. Defaults to mongodb://localhost:27017/shadowtalk.

To configure the environment variables of the API Gateway, see the README file in the api-gateway project.

To start each microservice, go to the microservice directory and run the following command:

npm start

To start each microservice in development mode, go to the microservice directory and run the following command:

npm run dev

• https://medium.com/geekculture/create-an-api-gateway-using-nodejs-and-express-933d1ca23322
• https://github.com/crizstian/cinema-microservice
• https://github.com/Jayvirrathi/microservices