tra-analysis/website/functions/node_modules/firebase-functions/lib/providers/pubsub.js
2019-01-06 13:14:45 -06:00

99 lines
3.5 KiB
JavaScript

"use strict";
// The MIT License (MIT)
//
// Copyright (c) 2017 Firebase
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
Object.defineProperty(exports, "__esModule", { value: true });
const cloud_functions_1 = require("../cloud-functions");
/** @internal */
exports.provider = 'google.pubsub';
/** @internal */
exports.service = 'pubsub.googleapis.com';
/** Select Cloud Pub/Sub topic to listen to.
* @param topic Name of Pub/Sub topic, must belong to the same project as the function.
*/
function topic(topic) {
return _topicWithOpts(topic, {});
}
exports.topic = topic;
/** @internal */
function _topicWithOpts(topic, opts) {
if (topic.indexOf('/') !== -1) {
throw new Error('Topic name may not have a /');
}
return new TopicBuilder(() => {
if (!process.env.GCLOUD_PROJECT) {
throw new Error('process.env.GCLOUD_PROJECT is not set.');
}
return `projects/${process.env.GCLOUD_PROJECT}/topics/${topic}`;
}, opts);
}
exports._topicWithOpts = _topicWithOpts;
/** Builder used to create Cloud Functions for Google Pub/Sub topics. */
class TopicBuilder {
/** @internal */
constructor(triggerResource, opts) {
this.triggerResource = triggerResource;
this.opts = opts;
}
/** Handle a Pub/Sub message that was published to a Cloud Pub/Sub topic */
onPublish(handler) {
return cloud_functions_1.makeCloudFunction({
handler,
provider: exports.provider,
service: exports.service,
triggerResource: this.triggerResource,
eventType: 'topic.publish',
dataConstructor: raw => new Message(raw.data),
opts: this.opts,
});
}
}
exports.TopicBuilder = TopicBuilder;
/**
* A Pub/Sub message.
*
* This class has an additional .json helper which will correctly deserialize any
* message that was a JSON object when published with the JS SDK. .json will throw
* if the message is not a base64 encoded JSON string.
*/
class Message {
constructor(data) {
[this.data, this.attributes, this._json] = [
data.data,
data.attributes || {},
data.json,
];
}
get json() {
if (typeof this._json === 'undefined') {
this._json = JSON.parse(new Buffer(this.data, 'base64').toString('utf8'));
}
return this._json;
}
toJSON() {
return {
data: this.data,
attributes: this.attributes,
};
}
}
exports.Message = Message;