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mirror of https://github.com/yagop/node-telegram-bot-api synced 2025-08-23 02:17:16 +00:00

Separated polling to telegramPolling.js

This commit is contained in:
yago 2015-07-15 20:50:24 +02:00
parent 63309ceea7
commit 00567a2f74
3 changed files with 101 additions and 56 deletions

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@ -1,4 +1,5 @@
var TelegramBotWebHook = require('./telegramWebHook');
var TelegramBotPolling = require('./telegramPolling');
var debug = require('debug')('node-telegram-bot-api');
var EventEmitter = require('events').EventEmitter;
var Promise = require("bluebird");
@ -31,35 +32,20 @@ var requestPromise = Promise.promisify(request);
var TelegramBot = function (token, options) {
options = options || {};
this.token = token;
this.offset = 0;
this._webServer = null;
var processUpdate = this._processUpdate.bind(this);
if (options.polling) {
// By default polling for 4 seconds
var timeout = options.polling.timeout || 4;
this._polling(timeout);
this._polling = new TelegramBotPolling(token, options.polling, processUpdate);
}
if (options.webHook) {
var binded = this._processUpdate.bind(this);
this._WebHook = new TelegramBotWebHook(token, options.webHook, binded);
this._WebHook = new TelegramBotWebHook(token, options.webHook, processUpdate);
}
};
util.inherits(TelegramBot, EventEmitter);
TelegramBot.prototype._polling = function (timeout) {
var self = this;
this.getUpdates(timeout).then(function (data) {
self._processUpdates(data);
self._polling(timeout);
}).catch(function (err) {
debug('polling error: %j', err);
// Wait for 2 seconds before retry
setTimeout(self._polling.bind(self), 2000, timeout);
});
};
TelegramBot.prototype._processUpdate = function (update) {
debug('Process Update', update);
debug('Process Update message', update.message);
@ -68,12 +54,6 @@ TelegramBot.prototype._processUpdate = function (update) {
}
};
TelegramBot.prototype._processUpdates = function (updates) {
for (var i = 0; i < updates.length; i++) {
this._processUpdate(updates[i]);
}
};
TelegramBot.prototype._request = function (path, options) {
if (!this.token) {
throw new Error('Telegram Bot Token not provided!');
@ -136,21 +116,13 @@ TelegramBot.prototype.setWebHook = function (url) {
* @see https://core.telegram.org/bots/api#getupdates
*/
TelegramBot.prototype.getUpdates = function (timeout, limit, offset) {
var self = this;
var query = {
offset: offset || this.offset+1,
offset: offset,
limit: limit,
timeout: timeout
};
return this._request('getUpdates', {qs: query})
.then(function (result) {
var last = result[result.length-1];
if (last) {
self.offset = last.update_id;
}
return result;
});
return this._request('getUpdates', {qs: query});
};
/**

69
src/telegramPolling.js Normal file
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@ -0,0 +1,69 @@
var debug = require('debug')('node-telegram-bot-api');
var Promise = require("bluebird");
var request = require('request');
var URL = require('url');
var requestPromise = Promise.promisify(request);
var TelegramBotPolling = function (token, options, callback) {
options = options || {};
if (typeof options === "function") {
callback = options;
options = {};
}
this.offset = 0;
this.token = token;
this.callback = callback;
this.timeout = options.timeout || 0;
this.interval = options.interval || 2000;
this._polling();
};
TelegramBotPolling.prototype._polling = function () {
var self = this;
this._getUpdates().then(function (updates) {
debug('polling data %j', updates);
updates.forEach(function (update, index) {
// If is the latest, update the offset.
if (index === updates.length - 1) {
self.offset = update.update_id;
debug('updated offset: %s', self.offset);
}
self.callback(update);
});
}).catch(function (err) {
debug('polling error: %j', err);
}).finally(function () {
debug('setTimeout for %s miliseconds', self.interval);
setTimeout(self._polling.bind(self), self.interval);
});
};
TelegramBotPolling.prototype._getUpdates = function () {
var opts = {
qs: {
offset: this.offset+1,
limit: this.limit,
timeout: this.timeout
},
url: URL.format({
protocol: 'https',
host: 'api.telegram.org',
pathname: '/bot'+this.token+'/getUpdates'
})
};
return requestPromise(opts).then(function (resp) {
if (resp[0].statusCode !== 200) {
throw new Error(resp[0].statusCode+' '+resp[0].body);
}
var data = JSON.parse(resp[0].body);
if (data.ok) {
return data.result;
} else {
throw new Error(data.error_code+' '+data.description);
}
});
};
module.exports = TelegramBotPolling;

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@ -1,3 +1,4 @@
var TelegramPolling = require('../src/telegramPolling');
var Telegram = require('../index');
var request = require('request');
var should = require('should');
@ -31,27 +32,6 @@ describe('Telegram', function () {
});
});
describe('#Polling', function () {
it('should emit a `message` on polling', function (done) {
var bot = new Telegram(TOKEN);
bot.on('message', function (msg) {
msg.should.be.an.instanceOf(Object);
bot._polling = function () {};
done();
});
bot.getUpdates = function() {
return {
then: function (cb) {
cb([{update_id: 0, message: {}}]);
return this;
},
catch: function () {}
};
};
bot._polling();
});
});
describe('#WebHook', function () {
it('should reject request if same token not provided', function (done) {
var bot = new Telegram(TOKEN, {webHook: true});
@ -378,3 +358,27 @@ describe('Telegram', function () {
});
}); // End Telegram
describe('#TelegramBotPolling', function () {
it('should call the callback on polling', function (done) {
function onUpdate (update) {
update.should.be.an.instanceOf(Object);
done();
}
var polling = new TelegramPolling(null, {interval: 500}, onUpdate);
// Not the best way to mock, but it works
polling._getUpdates = function() {
return {
then: function (cb) {
cb([{update_id: 10, message: {}}]);
return this;
},
catch: function () {
return this;
},
finally: function () {}
};
};
});
});