convexpress

Employ conventions to register express routes. This is done by creating route definition objects - convroutes - which:

• register the route's method and path
• handle input validation
• document the route

Install

npm install --save convexpress

Note: this library requires nodejs >= 8

Use

Define a route (convroute)

/* File: src/api/pets/get.js */
// Assuming NODE_PATH=src
const dbClient = require("services/db");

exports.path = "/pets";
exports.method = "get";
exports.description = "List pets";
exports.tags = ["pets"];
exports.responses = {
  "200": {
    description: "pets list"
  }
};
exports.parameters = [
  {
    name: "status",
    description: "Filter by pet status (e.g. available / not available)",
    in: "query",
    required: false,
    type: "string"
  }
];
exports.handler = async (req, res) => {
  const pets = await dbClient.query(`SELECT * FROM pets WHERE status = $1`, [
    req.query.status
  ]);
  res.status(200).send(pets);
};

Register the route and serve it

/* File: src/server.js */
const express = require("express");
const convexpress = require("convexpress");

const options = {
  info: {
    title: "pet store",
    version: "1.0.0"
  },
  host: "localhost:3000"
};
const api = convexpress(options)
  // Serve the API's swagger definition at /swagger.json
  .serveSwagger()
  // Register the route (assuming NODE_PATH=src)
  .convroute(require("api/pets/get"))
  // Or register multiple routes at once
  .loadFrom(`${__dirname}/api/**/*.js`);

const server = express()
  .use(api)
  .listen(process.env.PORT);

API

convexpress(options)

Create an express router object (convrouter), which the additional methods convroute, serveSwagger, and loadFrom.

Arguments

• options object: top-level properties of the swagger definition
  • host string
  • basePath string
  • info string
  • bodyParserOptions object: options for the json body parser:
    • limit string (default 100kb): maximum body size (details)
    • strict boolean (default true): strictly parse the json body (details)
    • verify function: a function that verifies the body (details)

Returns

The express router (convrouter).

convrouter.convroute(convroute)

Registers a convroute.

Arguments

• convroute object required: a convroute definition object:
  • path string required
  • method string required
  • handler function _required__
  • paramters Array< object >
  • middleware Array< function >
  • description string
  • tags Array< string >
  • responses Map< object >

Returns

The convrouter, to allow for method chaining.

convrouter.serveSwagger()

Registers the route GET /swagger.json for serving the swagger definition, and the route GET /swagger/ for serving the swagger UI html.

Arguments

None.

Returns

The convrouter, to allow for method chaining.

convrouter.loadFrom(pattern)

Loads and registers convroutes from files matching the specified pattern.

Arguments

• pattern string required: glob pattern of files to load convroutes from

Returns

The convrouter, to allow for method chaining.

Contributing

See CONTRIBUTING.md.