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amazonSNSPublisher.js
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amazonSNSPublisher.js
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var aws = require('aws-sdk');
var util = require('util');
var moment = require('moment');
function AmazonSNSPublisher() {
var _self = this;
var _topicARN;
var _aws_sns;
var _dateformat = "YYYY/MM/DD HH:mm:ss";
this.configureAWSCredentials = function(region, accessKeyId, secretAccessKey) {
// configure AWS
aws.config.update({
'region': region,
'accessKeyId': accessKeyId,
'secretAccessKey': secretAccessKey
});
_aws_sns = new aws.SNS({sslEnabled: true}).client;
}
this.publish = function(topic, message) {
_aws_sns.publish({
'TopicArn': topic,
'Message': message,
}, function (err, result) {
if (err !== null) {
console.log("** (" + _self._getCurrentTime() + ") SNS ERROR: ");
console.log(util.inspect(err));
return;
}
console.log("** (" + _self._getCurrentTime() + ") Amazon message publish was sucessful");
// console.log(result);
});
}
this.subscribeSNSTopic = function(topic, endpointURL) {
_aws_sns.subscribe({
'TopicArn': topic,
'Protocol': 'http',
'Endpoint': endpointURL
}, function (err, result) {
if (err !== null) {
console.log("** (" + getCurrentTime() + ") Error:");
console.log(util.inspect(err));
return;
}
console.log("** (" + _self._getCurrentTime() + ") Sent a subscription request for topic " + topic + " and Amazon responded with:");
console.log(result);
});
}
this.confirmSubscription = function(topic, token, callback) {
_aws_sns.confirmSubscription({
'TopicArn': topic,
'Token': token,
}, function (err, result) {
if (err !== null) {
console.log("** (" + _self._getCurrentTime() + ") ERROR: ");
console.log(util.inspect(err));
return;
}
console.log("** (" + _self._getCurrentTime() + ") Responded with a Confirmation for topic " + topic + " and recieved SubscriptionARN: " + result.SubscriptionArn);
if (callback != null) {
callback(result.SubscriptionArn);
}
});
}
this.unSubscribeSNSTopic = function(subscriptionArn, callback) {
_aws_sns.unsubscribe({
'SubscriptionArn': subscriptionArn
}, function (err, result) {
if (err !== null) {
console.log("** (" + _self._getCurrentTime() + ") Error:");
console.log(util.inspect(err));
return;
}
console.log("** (" + _self._getCurrentTime() + ") Sent a unsubscription request for SubscriptionArn " + subscriptionArn + " and Amazon responded with:");
console.log(result);
if (callback != null) callback(subscriptionArn);
});
}
this._getCurrentTime = function() {
return (moment().format(_dateformat));
}
}
module.exports = AmazonSNSPublisher;