Echoey

An imitation of golang web framework echo

Installation

npm i echoey -S

Example

• typescript

import { Echo, Context, handlerFunc } from 'echoey';
import { timer } from 'echoey/middleware';

const e = new Echo();

e.Use(timer);
e.Use(testMid);

e.GET('/hello', (c: Context) => {
  c.String(200, 'hello echoey');
});

e.Static('/static', 'assets');

e.Start(3000);

function testMid(next: handlerFunc) {
  return async (c: Context) => {
    console.log('testMid');
    await next(c);
  };
}

• nodejs

const { Echo } = require('echoey');
const { timer } = require('echoey/middleware');

const e = new Echo();

e.Use(timer);
e.Use(testMid);

e.GET('/hello', c => {
  c.String(200, 'hello echoey');
});

e.GET('/sleep', async c => {
  await sleep();
  c.String(200, 'sleep after 1s');
});

e.Start(3000);

function testMid(next) {
  return async c => {
    console.log('testMid');
    await next(c);
  };
}

function sleep(delay = 1000) {
  return new Promise(resolve => setTimeout(resolve, delay));
}

Route

• use group for sub route

const e = new Echo();

e.GET('/hello', (c: Context) => {
  c.String(200, 'hello test');
});

e.Use('/hello', testMid);

let g = e.Group('/admin', testMid);
g.GET('/test', (c: Context) => {
  c.String(200, 'asd');
});

e.Start(3000);

function testMid(next: handlerFunc) {
  return async (c: Context) => {
    console.log('testMid');
    await next(c);
  };
}

• manage group by e.AddGroup

const e = new Echo();

e.GET(
  '/test',
  async (c: Context) => {
    c.JSON(200, { a: 1 });
  },
  testMid,
);

e.AddGroup(UserGroup);

e.Start(3000);

function UserGroup(e: Echo) {
  const g = new Group('/user', e);
  g.GET('/test', (c: Context) => {
    c.String(200, 'user hello');
  });
  return g;
}

function testMid(next: handlerFunc): handlerFunc {
  return async (c: Context) => {
    console.log('testMid1');
    await next(c);
  };
}

Usage

https://github.com/cooperhsiung/echoey/tree/master/src/example

Todo

middlewares

import { timer, cors, compress, serveStatic } from 'echoey/middleware';

• timer
• cors
• compress
• serveStatic (use e.Static directly)
• jwt

Caveats

Since handler and middlewares are chained to execute, unpromised middleware might break the promises chain.

😃 It is commended to write middleware in this way

function testMid(next: handlerFunc) {
  return async (c: Context) => {
    console.log('testMid');
    await next(c);
  };
}

😕 not commended

function testMid(next: handlerFunc) {
  return (c: Context) => {
    console.log('testMid');
    next(c);
  };
}

License

MIT