feat: Migrating from monolith to microservices

.github/workflows/ci.yml

@@ -14,11 +14,23 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Install dependencies
-        run: cd backend && npm install
+      - name: Install dependencies in feed-service
+        run: cd backend && cd feed-service && npm install
 
-      - name: Lint
-        run: cd backend && npm run lint
+      - name: Lint feed-service
+        run: cd backend && cd feed-service && npm run lint
+
+      - name: Install dependencies in product-service
+        run: cd backend && cd product-service && npm install
+
+      - name: Lint product-service
+        run: cd backend && cd product-service && npm run lint
+
+      - name: Install dependencies in scanner-service
+        run: cd backend && cd scanner-service && npm install
+
+      - name: Lint scanner-service
+        run: cd backend && cd scanner-service && npm run lint
 
   build:
     runs-on: ubuntu-latest
@@ -27,11 +39,23 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Install dependencies
-        run: cd backend && npm install
+      - name: Install dependencies in feed-service
+        run: cd backend && cd feed-service && npm install
+
+      - name: Build feed-service
+        run: cd backend && cd feed-service && npm run build
 
-      - name: Build
-        run: cd backend && npm run build
+      - name: Install dependencies in product-service
+        run: cd backend && cd product-service && npm install
+
+      - name: Build product-service
+        run: cd backend && cd product-service && npm run build
+
+      - name: Install dependencies in scanner-service
+        run: cd backend && cd scanner-service && npm install
+
+      - name: Build scanner-service
+        run: cd backend && cd scanner-service && npm run build
 
   test:
     runs-on: ubuntu-latest
@@ -40,8 +64,14 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Install dependencies
-        run: cd backend && npm install
+      - name: Install dependencies in product-service
+        run: cd backend && cd product-service && npm install
+
+      - name: Test product-service
+        run: cd backend && cd product-service && npm test
+
+      - name: Install dependencies in scanner-service
+        run: cd backend && cd scanner-service && npm install
 
-      - name: Test
-        run: cd backend && npm test
+      - name: Test scanner-service
+        run: cd backend && cd scanner-service && npm test

README.md

@@ -15,7 +15,6 @@
   - [🏃 Quick start](#-quick-start)
   - [🛠️ Installation](#️-installation)
   - [🧪 Testing](#-testing)
-  - [🚧 Development Environment](#-development-environment)
 - [🌟 Frontend Documentation](#-frontend-documentation)
   - [🏃 Quickstart](#-quickstart-1)
   - [🛠️ Setup and Installation](#%EF%B8%8F-setup-and-installation)
@@ -66,13 +65,13 @@ All the code is located in the `backend/src` directory. The backend is written u
 1. Open the terminal and clone this repository using HTTPS or SSH (The example below uses SSH).
 
 ```bash
-git clone [email protected]:techstartucalgary/fashion.git
+git [email protected]:techstartucalgary/rethread.git
 ```
 
-2. `cd` into the `fashion` directory.
+2. `cd` into the `rethread` directory.
 
 ```bash
-cd fashion
+cd rethread
 ```
 
 3. `cd` into the `backend` directory.
@@ -81,6 +80,78 @@ cd fashion
 cd backend
 ```
 
+4. `cd` into the microservice you want to work on. For example, if you want to work on the `product-service` microservice, run the following command.
+
+```bash
+cd product-service
+```
+
+5. Run `npm install` to install all the dependencies.
+
+```bash
+npm install
+```
+
+6. Run `docker compose -f docker-compose.dev.yml up` to start the database.
+
+```bash
+docker compose -f docker-compose.dev.yml up
+```
+
+7. Run `docker ps` to check if the database is running.
+
+```bash
+docker ps
+```
+
+8. If you see the database running then copy the `CONTAINER ID` of the database.
+
+9. Run `docker exec -it <CONTAINER ID> bash` to enter the database.
+
+```bash
+docker exec -it <CONTAINER ID> bash
+```
+
+10. Run `mysql -u root -p` to enter the MySQL shell and enter the password as "root".
+
+```bash
+mysql -u root -p
+```
+
+11. Run `CREATE DATABASE product;` to create the database (So far the product and feed microservices need a database).
+
+```bash
+CREATE DATABASE product;
+
+#or
+
+CREATE DATABASE feed;
+```
+
+12. Run `exit` to exit the MySQL shell.
+
+```bash
+exit
+```
+
+13. Run `exit` to exit the docker container.
+
+```bash
+exit
+```
+
+14. Run `npx prisma migrate dev --name init` to create the database schema.
+
+```bash
+npx prisma migrate dev --name init
+```
+
+15. Run `npm run dev` to start the server.
+
+```bash
+npm run dev
+```
+
 ### 🛠️ Installation
 
 1. Make sure you have `Node.js` and `NPM` installed on your machine. Click [here](https://nodejs.org/en/) to download and install Node.js. Make sure you install the LTS version. NPM is installed automatically when you install Node.js.
@@ -113,44 +184,60 @@ git -v
 
 ### 🧪 Testing
 
-All the tests are located in the `backend/test` directory. The tests suites are written using [Mocha](https://mochajs.org/) and [Chai](https://www.chaijs.com/).
+All the tests are located in the `backend/test` directory. The tests suites are written using [Jest](https://jestjs.io/).
 
 1. Open the terminal and clone this repository using HTTPS or SSH (The example below uses SSH).
 
 ```bash
-git clone [email protected]:techstartucalgary/fashion.git
+git clone [email protected]:techstartucalgary/rethread.git
 ```
 
-2. `cd` into the `backend` directory.
+2. `cd` into the `rethread` directory.
+
+```bash
+cd rethread
+```
+
+3. `cd` into the `backend` directory.
 
 ```bash
 cd backend
 ```
 
-3. Run `npm install` to install all the dependencies.
+4. `cd` into the microservice you want to test. For example, if you want to test the `product-service` microservice, run the following command.
+
+```bash
+cd product-service
+```
+
+5. Run `npm install` to install all the dependencies.
 
 ```bash
 npm install
 ```
 
-4. Run `npm run test` to start the server.
+6. Run `npm test` to run the tests.
 
 ```bash
-npm run test
+npm test
 ```
 
-### 🚧 Development Environment
+7. If you see all the tests passing then you are good to go.
+
+### 🚦 Linting
+
+All the code is linted using [ESLint](https://eslint.org/). The configuration file is located in the `backend/.eslintrc.config.json` file.
 
 1. Open the terminal and clone this repository using HTTPS or SSH (The example below uses SSH).
 
 ```bash
-git clone [email protected]:techstartucalgary/fashion.git
+git clone [email protected]:techstartucalgary/rethread.git
 ```
 
-2. `cd` into the `fashion` directory.
+2. `cd` into the `rethread` directory.
 
 ```bash
-cd fashion
+cd rethread
 ```
 
 3. `cd` into the `backend` directory.
@@ -165,26 +252,46 @@ cd backend
 npm install
 ```
 
-5. Run `npx prisma init` to initialize the database.
+5. Run `npm run lint` to lint the code.
+
+```bash
+npm run lint
+```
+
+6. If you see no errors then you are good to go.
+
+### 💅 Prettier
+
+All the code is formatted using [Prettier](https://prettier.io/). The configuration file is located in the `backend/.prettierrc` file.
+
+1. Open the terminal and clone this repository using HTTPS or SSH (The example below uses SSH).
+
+```bash
+git clone [email protected]:techstartucalgary/rethread.git
+```
+
+2. `cd` into the `rethread` directory.
 
 ```bash
-npx prisma init
+cd rethread
+```
+
+3. `cd` into the `backend` directory.
+
+```bash
+cd backend
 ```
 
-6. Update your `prisma/schema.prisma` file within the `backend` folder to use the `mysql` provider and set the relation mode type to `prisma`.
+4. Run `npm install` to install all the dependencies.
 
-```prisma
-datasource db {
-  provider     = "mysql"
-  url          = env("DATABASE_URL")
-  relationMode = "prisma"
-}
+```bash
+npm install
 ```
 
-7. Once you are ready to push your schema to PlanetScale, run `prisma db push` against your PlanetScale database to update the schema in your database.
+5. Run `npm run format` to format the code.
 
 ```bash
-npx prisma db push
+npm run format
 ```
 
 # 🌟 Frontend Documentation
@@ -199,6 +306,10 @@ The frontend is crafted for iOS platforms, utilizing Swift and SwiftUI. The code
    git clone [email protected]:techstartucalgary/fashion.git
    ```
 
+```
+
+```
+
 2. **Navigate to the Frontend Directory**:
 
    ```bash
@@ -251,3 +362,7 @@ The frontend is crafted for iOS platforms, utilizing Swift and SwiftUI. The code
 - **SwiftUI Tutorials**: Explore [SwiftUI Tutorials](https://developer.apple.com/tutorials/swiftui) for hands-on learning.
 
 - **Apple Developer Forums**: Utilize [Apple Developer Forums](https://developer.apple.com/forums/) for community support.
+
+```
+
+```

backend/.gitignore

@@ -2,4 +2,5 @@ node_modules
 # Keep environment variables out of version control
 .env
 dist
-coverage
+coverage
+migrations

backend/api-gateway/nginx.conf

@@ -0,0 +1,21 @@
+events {
+}
+
+http {
+
+    server {
+        listen 80;
+
+        location /api/v1/product/ {
+            proxy_pass http://product-service:3000;
+        }
+
+        location /api/v1/feed/ {
+            proxy_pass http://feed-service:3001;
+        }
+
+        location /api/v1/scanner/ {
+            proxy_pass http://scanner-service:3002;
+        }
+    }
+}

backend/docker-compose.yml → backend/docker-compose.dev.yml

@@ -3,9 +3,9 @@ version: "3"
 services:
   mysql:
     image: mysql
+    container_name: mysql
     environment:
       MYSQL_ROOT_PASSWORD: root
-      MYSQL_DATABASE: rethread
     ports:
       - "3306:3306"
     volumes: