@talema/graphql-azure-servicebus-subscriptions

<!doctype html> <html lang="en"> <head> <title>Code coverage report for ServiceBusPubSub.ts</title> <meta charset="utf-8" /> <link rel="stylesheet" href="prettify.css" /> <link rel="stylesheet" href="base.css" /> <link rel="shortcut icon" type="image/x-icon" href="favicon.png" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <style type='text/css'> .coverage-summary .sorter { background-image: url(sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1><a href="index.html">All files</a> ServiceBusPubSub.ts</h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 89.47% Statements 51/57 </div> <div class='fl pad1y space-right2'> 66.66% Branches 26/39 </div> <div class='fl pad1y space-right2'> 76.47% Functions 13/17 </div> <div class='fl pad1y space-right2'> 89.09% Lines 49/55 </div> </div> Press n or j to go to the next uncovered block, b, p or k for the previous block. <template id="filterTemplate"> <div class="quiet"> Filter: <input oninput="onInput()" type="search" id="fileSearch"> </div> </template> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a> <a name='L2'></a><a href='#L2'>2</a> <a name='L3'></a><a href='#L3'>3</a> <a name='L4'></a><a href='#L4'>4</a> <a name='L5'></a><a href='#L5'>5</a> <a name='L6'></a><a href='#L6'>6</a> <a name='L7'></a><a href='#L7'>7</a> <a name='L8'></a><a href='#L8'>8</a> <a name='L9'></a><a href='#L9'>9</a> <a name='L10'></a><a href='#L10'>10</a> <a name='L11'></a><a href='#L11'>11</a> <a name='L12'></a><a href='#L12'>12</a> <a name='L13'></a><a href='#L13'>13</a> <a name='L14'></a><a href='#L14'>14</a> <a name='L15'></a><a href='#L15'>15</a> <a name='L16'></a><a href='#L16'>16</a> <a name='L17'></a><a href='#L17'>17</a> <a name='L18'></a><a href='#L18'>18</a> <a name='L19'></a><a href='#L19'>19</a> <a name='L20'></a><a href='#L20'>20</a> <a name='L21'></a><a 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              2x 2x 2x 2x 2x       2x 2x 2x       2x 2x 2x                               6x 6x             6x       6x                                   9x 9x   9x 2x     9x           3x       2x 2x     2x 2x     9x               4x 4x   3x 3x 3x     3x 3x             6x   6x 6x   6x 6x       6x       6x      </td><td class="text"><pre class="prettyprint lang-js">import { PubSubEngine } from "graphql-subscriptions";   import { ServiceBusClient, ServiceBusMessage, ServiceBusReceivedMessage, ServiceBusSender, ServiceBusReceiver, delay, isServiceBusError, ProcessErrorArgs, ServiceBusError, } from "@azure/service-bus";   import { Subject, Subscription, filter, tap, map } from "rxjs"; import debug from "debug"; import { IEvent, IEventResult } from "./Event"; import { IMessageProcessor, MessageProcessor } from "./MessageProcessor";   export interface ILogger extends Console {}   /** * Represents configuration needed to wire up PubSub engine with the ServiceBus topic * @property {string} connectionString - The ServiceBus connection string. This would be the Shared Access Policy connection string. * @property {string} topicName - This would be the topic where all the events will be published. * @property {string} subscriptionName - This would be the ServiceBus topic subscription name. */ export interface IServiceBusOptions { connectionString: string; topicName: string; subscriptionName: string; }   /** * An override for the in-memory PubSubEngine which connects to the Azure ServiceBus. */   export class ServiceBusPubSub extends PubSubEngine { private client: ServiceBusClient; private sender: ServiceBusSender; private reciever: ServiceBusReceiver; private subscriptions = new Map<number, Subscription>(); private options: IServiceBusOptions; private subject: Subject<IEventResult>; private debugger = debug("graphql:servicebus"); private eventNameKey: string = "sub.eventName"; private subscription: { close(): Promise<void> } | undefined; private logger: ILogger; private messageProcessor: IMessageProcessor;   constructor( options: IServiceBusOptions, logger: ILogger, messageProcessor?: IMessageProcessor, client?: ServiceBusClient ) { super(); this.options = options; this.client = client || new ServiceBusClient(this.options.connectionString); this.sender = this.client.createSender(this.options.topicName); this.reciever = this.client.createReceiver( this.options.topicName, this.options.subscriptionName ); this.logger = logger; this.messageProcessor = messageProcessor || new MessageProcessor(logger); this.subject = new Subject<IEventResult>(); }   createSubscription(): { close(): Promise<void> } { return this.reciever.subscribe({ processMessage: async (message: ServiceBusReceivedMessage) => { await this.messageProcessor.process(this.subject, message); }, processError: async (args: ProcessErrorArgs) => { await this.messageProcessor.onError( args, async (error: ServiceBusError): Promise<void> => { if (error.code === "UnauthorizedAccess") { await this.subscription?.close(); } } ); }, }); }   async publish(eventName: string, payload: any): Promise<void> { try { let event: IEvent = { body: { name: eventName, payload: payload, }, };   event = this.enrichMessage( new Map<string, any>([[this.eventNameKey, eventName]]), event ); return this.sender.sendMessages(event); } catch (error) { this.logger.error(error); } }   /** * Subscribe to a specific event updates. The subscribe method would create a ServiceBusReceiver to listen to all the published events. * The method internally would filter out all the received events that are not meant for this subscriber. * @property {eventName | string} - published event name * @property {onMessage | Function} - client handler for processing received events. * @returns {Promise<number>} - returns the created identifier for the created subscription. It would be used to dispose/close any resources while unsubscribing. */ async subscribe( eventName: string, onMessage: Function, options: Object = {} ): Promise<number> { const id = Date.now() * Math.random(); this.debugger("sub metadata: ", eventName, onMessage, options);   if (this.subscriptions.size <= 0) { this.subscription = this.createSubscription(); }   this.subscriptions.set( id, this.subject .pipe( filter( (e) => (eventName && e.body.name === eventName) || !eventName || eventName === "*" ), map((e) => e.body.payload), tap((e) => e) ) .subscribe((event) => { this.debugger("returned event: ", event); onMessage(event); }) ); return id; }   /** * Unsubscribe method would close open connection with the ServiceBus for a specific event handler. * @property {subId} - It's a unique identifier for each subscribed client. */ async unsubscribe(subId: number): Promise<boolean> { const subscription = this.subscriptions.get(subId) || undefined; if (!subscription) return false;   Eif (!subscription.closed) { subscription.unsubscribe(); this.subscriptions.delete(subId); }   if (this.subscriptions.size <= 0) await this.subscription?.close(); return true; }   private enrichMessage( attributes: Map<string, any>, message: ServiceBusMessage ): ServiceBusMessage { const enrichedMessage = Object.assign({}, message);   Eif (enrichedMessage.applicationProperties == undefined) enrichedMessage.applicationProperties = {};   attributes.forEach((value, key) => { Eif ( enrichedMessage.applicationProperties !== undefined && enrichedMessage.applicationProperties?.[key] === undefined ) { enrichedMessage.applicationProperties[key] = value; } });   return enrichedMessage; } }  </pre></td></tr></table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> at Fri May 19 2023 13:24:06 GMT+0000 (Coordinated Universal Time) </div> <script src="prettify.js"></script> <script> window.onload = function () { prettyPrint(); }; </script> <script src="sorter.js"></script> <script src="block-navigation.js"></script> </body> </html>