dailytrends

Changelog

• Inicializamos proyecto:

  • Usando npm init, con la node@latest (v24.4.1)

• #1 PR : feat/project_structure

  • Añadimos dependencias que voy a usar
  • Creo una estructura de directorio inicial
  • Añado un primer test (database.test.ts) para jest

• #2 PR : feat/database_and_feed_model

  • Añadimos moongose a las dependencias
  • Añado un docker-compose con mongo local (luego lo ampliaré para esta propia app)
  • Modificar el docker para tenerlo multistage y reducir el tamaño de las imagenes de contenedores
  • añadir documentación de Docker, docker-compose
  • añadir documentación de las capas de abstracción de "Feed"
  • añadir tests para la conexión con la base de datos con Mocks (el mocking aqui a veces se complica)
  • añadir primeras definiciones de Feed, empezaremos de lowerst a higher abstraction: tipo -> modelo -> repo -> servicio -> controller

Feed layer abstractions

From higher to lower:

• Layer 1: HTTP/Controller (Highest Abstraction)

• FeedController.ts : Handles HTTP requests/responses, API endpoints

• Layer 2: Business Logic/Service

• FeedService.ts : Implements business rules, validation, orchestration

• Layer 3: Data Access/Repository

• FeedRepository.ts : Abstracts database operations, CRUD methods

• Layer 4: Data Model/Schema

• Feed.ts : Mongoose schema, database validations, indexes

• Layer 5: Type Definitions (Lowest Abstraction)

• Feed.ts : TypeScript interfaces, enums, DTOs

• config.ts : Configuration settings

Dockerfile simple to multistage

I rebuild the Dockerfile to be multistage, since the image was heavy because all the node_modules dependencies. The size of the image has been reduced from 717Mb to 376.

dailytrends-app-legacy latest 96a2dfe15361 3 minutes ago 717MB dailytrends-app-light latest 7436142e1301 3 seconds ago 376MB

legacy

FROM node:24-slim
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build
EXPOSE 3000
CMD ["node", "dist/index.js"]

light

FROM node:24-slim AS builder
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build

FROM node:24-slim AS production
WORKDIR /app
COPY package*.json ./
RUN npm install --production
COPY --from=builder /app/dist ./dist
EXPOSE 3000
CMD ["node", "dist/index.js"]