geshan/nodejs-sqlite

Purpose and Entry Point

A minimal Node.js HTTP API example demonstrating SQLite-backed quote retrieval. The application starts from index.js, with runtime settings loaded from config.js.

HTTP Application Layer

index.js creates and configures the server application, mounts quote routes, and listens on the configured port. It is the primary process boundary between HTTP clients and application logic.

Relevant paths:

• index.js

• config.js

• routes/quotes.js

Quote Routing

routes/quotes.js defines the API endpoint(s) for quotes and translates incoming HTTP requests into calls to the quote service. It owns HTTP concerns such as route matching and response delivery, while avoiding direct database behavior.

Relevant paths:

• routes/quotes.js

• services/quotes.js

Quote Domain Service

services/quotes.js contains the quote-oriented business/data-access operations used by routes. This layer separates endpoint behavior from SQL execution and is the main location to extend quote queries or add quote-related operations.

Relevant paths:

• services/quotes.js

• routes/quotes.js

• services/db.js

Database Access Boundary

services/db.js centralizes SQLite connection and query access. It isolates the rest of the application from the SQLite driver/API and establishes the persistence boundary for quote services.

Relevant paths:

• services/db.js

• services/quotes.js

• quotes.db

Persistence and Runtime Dependencies

SQLite is embedded and file-backed through quotes.db; no external database server is required. Node.js runs the API process, and dependencies are defined through the package manifests.

Relevant paths:

• quotes.db

• package.json

• package-lock.json

Primary Request Flow

A client request reaches the server in index.js, is dispatched to routes/quotes.js, handled by services/quotes.js, and executed through services/db.js against quotes.db. Results return through the same layers as an HTTP response. The key boundaries are HTTP routing versus quote logic, and quote logic versus SQLite access.