@zhaochy/egg-oauth2-server/app/extend/application.js

koa-oauth-server(node-oauth2-server) plugin for egg

'use strict';

const jwt = require('jsonwebtoken');
const JWT = Symbol('Application#jwt');

module.exports = {
  get jwt() {
    if (!this[JWT]) {
      const config = this.config.oAuth2Server;
      // const secret = config.jwt.secret;
      this[JWT] = {};

      this[JWT].sign = (payload, privateKey, options = {}, callback) => {
        if (this[JWT].privateKey) {
          privateKey = this[JWT].privateKey;
        }
        return jwt.sign(
          payload,
          privateKey,
          Object.assign({}, config.sign || {}, options),
          callback
        );
      };

      this[JWT].verify = (token, publicKey, options, callback) => {
        if (this[JWT].publicKey) {
          publicKey = this[JWT].publicKey;
        }
        return jwt.verify(
          token,
          publicKey,
          Object.assign({}, config.verify || {}, options),
          callback
        );
      };

      this[JWT].decode = jwt.decode;

      this[JWT].setPrivateKey = (privateKey) => this[JWT].privateKey = privateKey;
      this[JWT].setPublicKey = (publicKey) => this[JWT].publicKey = publicKey;
    }
    return this[JWT];
  },
};