eduterra-cli/lib/client.js

EduTerra API client

'use strict';

var request = require('request')
  , utils = require('./utils')
  , fs = require('fs')
  , path = require('path');

var ApiClient = module.exports = exports = function (realm) {
  this.realm = realm;
};

ApiClient.getClient = function (dir, cb) {
  if (typeof dir == 'function') {
    cb = dir;
    dir = process.cwd();
  }
  fs.readFile(path.join(dir, 'eduterra.json'), 'utf-8', function (err, text) {
    if (err) return cb(err);
    try {
      cb(null, new ApiClient(JSON.parse(text)));
    } catch (e) {
      cb(e);
    }
  });
};

Object.defineProperty(ApiClient.prototype, 'baseUrl', {
  get: function () {
    var protocol = this.realm.secure ? 'https' : 'http';
    return protocol + '://' + this.realm.host + '/api/v1';
  }
});

Object.defineProperty(ApiClient.prototype, 'headers', {
  get: function () {
    var publicKey = this.realm.publicKey
      , privateKey = this.realm.privateKey
      , nonce = utils.randomString(32)
      , token = utils.sha256(nonce + ':' + privateKey);
    return {
      'API-Auth-PublicKey': publicKey,
      'API-Auth-Nonce': nonce,
      'API-Auth-Token': token
    };
  }
});

ApiClient.prototype.url = function (url) {
  var cli = this;
  return cli.baseUrl + '/' + url.replace(/^\//, '');
};

ApiClient.prototype.request = function (method, url, data) {
  var cli = this;
  return request.defaults({
    method: method ? method.toLowerCase() : null,
    url: url ? cli.url(url) : null,
    headers: cli.headers,
    body: data
  });
};

ApiClient.prototype.json = function (method, url, data, cb) {
  if (typeof data == 'function') {
    cb = data;
  }
  this.request(method, url, data)({ json: true }, cb);
};

ApiClient.prototype.get = function (url, data, cb) {
  return this.json('get', url, data, cb);
};

ApiClient.prototype.post = function (url, data, cb) {
  return this.json('post', url, data, cb);
};