init repo

.env.example

@@ -0,0 +1,5 @@
+ENVIRONMENT = "dev"
+CASSANDRA_DC = datacenter1
+CASSANDRA_HOST = 0.0.0.0
+CASSANDRA_USER = cassandra
+CASSANDRA_PW = cassandra

.eslintrc.js

@@ -0,0 +1,25 @@
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    tsconfigRootDir : __dirname, 
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint/eslint-plugin'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+  ],
+  root: true,
+  env: {
+    node: true,
+    jest: true,
+  },
+  ignorePatterns: ['.eslintrc.js'],
+  rules: {
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+  },
+};

.gitignore

@@ -0,0 +1,37 @@
+# compiled output
+/dist
+/node_modules
+
+.env
+
+# Logs
+logs
+*.log
+npm-debug.log*
+pnpm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "singleQuote": true,
+  "trailingComma": "all"
+}

Dockerfile

@@ -0,0 +1,32 @@
+FROM node:18-alpine AS builder
+
+WORKDIR "/app"
+
+COPY . .
+
+RUN npm ci
+
+RUN npm run build
+
+RUN npm prune --production
+
+FROM node:18-alpine AS prod
+
+WORKDIR "/app"
+
+COPY --from=builder /app/package.json ./package.json
+COPY --from=builder /app/package-lock.json ./package-lock.json
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/sf-class2-root.crt ./sf-class2-root.crt
+COPY --from=builder /app/.env /app/dist/.env
+
+ENV ENVIRONMENT production
+ENV CASSANDRA_DC datacenter1
+ENV CASSANDRA_HOST 0.0.0.0
+ENV CASSANDRA_USER cassandra
+ENV CASSANDRA_PW cassandra
+
+CMD ["sh", "-c", "ENVIRONMENT=${ENVIRONMENT} CASSANDRA_DC=${CASSANDRA_DC} CASSANDRA_HOST=${CASSANDRA_HOST} CASSANDRA_USER=${CASSANDRA_USER} CASSANDRA_PW=${CASSANDRA_PW} npm run start:prod --host 0.0.0.0"]
+
+EXPOSE 3000

README.md

@@ -0,0 +1,18 @@
+# Nest Js Simple User API with Cassandra
+
+This is a simple nest js user api with 2 endpoints - get all users and create a user, using cassandra as the underlying database.
+
+## Development
+
+- Copy `.env.example` to `.env`
+- Make sure cassandra is running locally/via docker and replace the values in the env file accordingly
+- `npm i`
+- `npm run start:dev`
+
+## Production (with AWS Keyspaces)
+
+- Copy `.env.example` to `.env`
+- Ensure `ENVIRONMENT = "production"` if using AWS Keyspaces and replace the other values with AWS endpoints
+- `npm i`
+- `npm run build`
+- `npm run start:prod`

nest-cli.json

@@ -0,0 +1,5 @@
+{
+  "$schema": "https://json.schemastore.org/nest-cli",
+  "collection": "@nestjs/schematics",
+  "sourceRoot": "src"
+}

package.json

@@ -0,0 +1,75 @@
+{
+  "name": "quriverse-test",
+  "version": "0.0.1",
+  "description": "",
+  "author": "",
+  "private": true,
+  "license": "UNLICENSED",
+  "scripts": {
+    "prebuild": "rimraf dist",
+    "build": "nest build",
+    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
+    "start": "nest start",
+    "start:dev": "nest start --watch",
+    "start:debug": "nest start --debug --watch",
+    "start:prod": "node dist/main",
+    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:cov": "jest --coverage",
+    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
+    "test:e2e": "jest --config ./test/jest-e2e.json"
+  },
+  "dependencies": {
+    "@nestjs/common": "^9.0.0",
+    "@nestjs/config": "^2.2.0",
+    "@nestjs/core": "^9.0.0",
+    "@nestjs/platform-express": "^9.0.0",
+    "bcrypt": "^5.0.1",
+    "cassandra-driver": "^4.6.4",
+    "reflect-metadata": "^0.1.13",
+    "rimraf": "^3.0.2",
+    "rxjs": "^7.2.0"
+  },
+  "devDependencies": {
+    "@nestjs/cli": "^9.0.0",
+    "@nestjs/schematics": "^9.0.0",
+    "@nestjs/testing": "^9.0.0",
+    "@types/bcrypt": "^5.0.0",
+    "@types/express": "^4.17.13",
+    "@types/jest": "28.1.8",
+    "@types/node": "^16.0.0",
+    "@types/supertest": "^2.0.11",
+    "@typescript-eslint/eslint-plugin": "^5.0.0",
+    "@typescript-eslint/parser": "^5.0.0",
+    "eslint": "^8.0.1",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-plugin-prettier": "^4.0.0",
+    "jest": "28.1.3",
+    "prettier": "^2.3.2",
+    "source-map-support": "^0.5.20",
+    "supertest": "^6.1.3",
+    "ts-jest": "28.0.8",
+    "ts-loader": "^9.2.3",
+    "ts-node": "^10.0.0",
+    "tsconfig-paths": "4.1.0",
+    "typescript": "^4.7.4"
+  },
+  "jest": {
+    "moduleFileExtensions": [
+      "js",
+      "json",
+      "ts"
+    ],
+    "rootDir": "src",
+    "testRegex": ".*\\.spec\\.ts$",
+    "transform": {
+      "^.+\\.(t|j)s$": "ts-jest"
+    },
+    "collectCoverageFrom": [
+      "**/*.(t|j)s"
+    ],
+    "coverageDirectory": "../coverage",
+    "testEnvironment": "node"
+  }
+}

sf-class2-root.crt

@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

src/app.module.ts

@@ -0,0 +1,18 @@
+import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
+import { DbModule } from './db/db.module';
+import { UserModule } from './user/user.module';
+
+@Module({
+  imports: [
+    ConfigModule.forRoot({
+      isGlobal: true,
+    }),
+    DbModule,
+    UserModule,
+  ],
+  controllers: [],
+  providers: [],
+})
+
+export class AppModule {}

src/db/db.module.ts

@@ -0,0 +1,11 @@
+import { DbService } from './db.service';
+import { Module } from '@nestjs/common';
+
+@Module({
+  imports: [],
+  controllers: [],
+  providers: [DbService],
+  exports: [DbService],
+})
+
+export class DbModule {}

src/db/db.service.ts

@@ -0,0 +1,43 @@
+import { Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { Client, mapping, auth, types } from 'cassandra-driver';
+import * as fs from 'fs';
+
+@Injectable()
+export class DbService {
+  client: Client;
+  mapping: mapping.Mapper;
+
+  constructor(private configService: ConfigService) {}
+
+  private createClient() {
+    console.log(process.env);
+    this.client = new Client({
+      contactPoints: [process.env.CASSANDRA_HOST],
+      keyspace: 'quriverse',
+      localDataCenter: process.env.CASSANDRA_DC,
+      authProvider: new auth.PlainTextAuthProvider(process.env.CASSANDRA_USER, process.env.CASSANDRA_PW),
+      sslOptions: {
+        ca: [
+          fs.readFileSync('sf-class2-root.crt', 'utf-8')
+        ],
+        host: 'cassandra.ap-south-1.amazonaws.com',
+        rejectUnauthorized: true,
+      },
+      protocolOptions: {
+        port: process.env.ENVIRONMENT === "production" ? 9142 : 9042,
+      },
+      queryOptions: {
+        consistency: process.env.ENVIRONMENT === "production" ? types.consistencies.localQuorum : types.consistencies.localOne,
+      },
+    });
+  }
+
+  createMapper(mappingOptions: mapping.MappingOptions) {
+    if (this.client == undefined) {
+      this.createClient();
+    }
+    
+    return new mapping.Mapper(this.client, mappingOptions);
+  }
+}

src/main.ts

@@ -0,0 +1,8 @@
+import { NestFactory } from '@nestjs/core';
+import { AppModule } from './app.module';
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+  await app.listen(3000);
+}
+bootstrap();

src/user/user.controller.ts

@@ -0,0 +1,24 @@
+import * as bcrypt from 'bcrypt';
+import { Controller, Get, Post, Body, BadRequestException } from '@nestjs/common';
+import { UserService } from './user.service';
+import { User } from './user.model';
+
+@Controller()
+export class UserController {
+
+  constructor(private userService: UserService) {}
+
+  @Get('users')
+  async get() {
+    return this.userService.get();
+  }
+
+  @Post('users')
+  async create(@Body() user: User) {
+    user.password = bcrypt.hashSync(user.password, 10);
+    return this.userService.create(user)
+      .catch(err => {
+        throw new BadRequestException();
+      });
+  }
+}

src/user/user.model.ts

@@ -0,0 +1,7 @@
+export class User {
+  id: number = 0;
+  firstname: string = "";
+  lastname: string = "";
+  email: string = "";
+  password: string = "";
+}

src/user/user.module.ts

@@ -0,0 +1,20 @@
+import { UserService } from './user.service';
+import { UserController } from './user.controller';
+import { UserRepository } from './user.repository';
+import { Module } from '@nestjs/common';
+import { DbModule } from '../db/db.module';
+
+@Module({
+  imports: [DbModule],
+  controllers: [UserController],
+  providers: [
+    UserService,
+    UserRepository,
+  ],
+  exports: [
+    UserService,
+    UserRepository,
+  ],
+})
+
+export class UserModule {}

src/user/user.repository.ts

@@ -0,0 +1,32 @@
+import { Injectable, OnModuleInit } from '@nestjs/common';
+import { mapping } from 'cassandra-driver';
+import { User } from './user.model';
+import { DbService } from '../db/db.service';
+
+@Injectable()
+export class UserRepository implements OnModuleInit {
+  constructor(private dbService: DbService) {}
+
+  mapper: mapping.ModelMapper<User>;
+
+  onModuleInit() {
+    const mappingOptions: mapping.MappingOptions = {
+      models: {
+        'User': {
+          tables: ['users'],
+          mappings: new mapping.UnderscoreCqlToCamelCaseMappings
+        }
+      }
+    }
+
+    this.mapper = this.dbService.createMapper(mappingOptions).forModel('User');
+  }
+
+  async get() {
+    return (await this.mapper.findAll()).toArray();
+  }
+
+  async create(user: User) {
+    return (await this.mapper.insert(user)).toArray();
+  }
+}

src/user/user.service.ts

@@ -0,0 +1,17 @@
+import { Injectable } from '@nestjs/common';
+import { UserRepository } from './user.repository';
+import { User } from './user.model';
+
+@Injectable()
+export class UserService {
+  
+  constructor(private userRepository: UserRepository) {}
+
+  async get() {
+    return this.userRepository.get();
+  }
+
+  async create(user: User) {
+    return this.userRepository.create(user);
+  }
+}

tsconfig.build.json

@@ -0,0 +1,4 @@
+{
+  "extends": "./tsconfig.json",
+  "exclude": ["node_modules", "test", "dist", "**/*spec.ts"]
+}

tsconfig.json

@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "declaration": true,
+    "removeComments": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "allowSyntheticDefaultImports": true,
+    "target": "es2017",
+    "sourceMap": true,
+    "outDir": "./dist",
+    "baseUrl": "./",
+    "incremental": true,
+    "skipLibCheck": true,
+    "strictNullChecks": false,
+    "noImplicitAny": false,
+    "strictBindCallApply": false,
+    "forceConsistentCasingInFileNames": false,
+    "noFallthroughCasesInSwitch": false
+  }
+}