jtrpc

A json rpc server framework.

install

$ npm install typedi koa koa-bodyparser @jtrpc/core @jtrpc/koa

quick start

import { Service } from 'typedi';
import * as Koa from 'koa';
import * as bodyparser from 'koa-bodyparser';
import jtrpc from '@jtrpc/koa';
import { MethodInstance } from '@jtrpc/core';

const app = new Koa();

app.use(bodyparser());

app.use(jtrpc({
  methodResolver: method => {
    switch (method) {
      case 'math.sum': return Sum;
    }
  },
}));

app.listen(3000, () => console.log('server up'));

@Service('ping')
class Ping extends MethodInstance {
  execute() {
    return 'pong';
  }

  validateParameters() {
    return true;
  }
}

@Service()
class Sum extends MethodInstance<number[], number> {
  execute(...values: number[]) {
    return values.reduce((acc, curr) => acc + curr, 0);
  }

  validateParameters(...values: unknown[]) {
    return values.every(value => typeof value === 'number');
  }
}