Questions tagged [streaming-api]

The Force.com Streaming API lets you expose a near real-time stream of data from the Force.com platform. Streaming API delivers events that are either tied to changes in Salesforce or based on custom payloads.

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Error attempting to use Streaming Api to query PushTopic

When I run my program using nForce to connect to the client I get this error... 400::The replayId for channel {/topic/mypushtopic} wasn't found using the " + 'provided replay ID map {{}}. ...
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1answer
72 views

Streaming API not working when email is sent from Apex Batch

I have a Batch class that updates Last_Date__c on Project__c object in the Finish method. I have a PushTopic 'LastDateUpdate' on Project__c which is fired when Last_Date__c is updated. I'm ...
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System.QueryException: sObject type 'PushTopic' is not supported

As part of our managed package we have a post-install script that inserts push topics to support the integration between our solution and SF. Before today this post install script worked fine. I was ...
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Getting change data capture events in Python

I am trying to figure out how to subscribe to streaming channel and get cdc events in Python, after success in creating new PushTopic and StreamingChannel. I saw some code examples in Java and NodeJS,...
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Metrics on Salesforce Streaming topic messages not being consumed

I'm currently working with the Salesforce Streaming API and was wondering if there is any way one can monitor if there is any "lag" (as you got in Kafka) on specific Salesforce topics. That would ...
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110 views

Issue with platform event Subscription

A platform event is publishing through an apex trigger and I am trying to subscribe to it using a lightning component, but the lightning component is failing to subscribe every time. It is subscribing ...
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14 views

What is the best practice to initialize the state of Streaming API consumer?

When you use Streaming API with Durable Streaming and you turn on a new consumer, you might potentially desire to have an initial load for all records you are subscribed to. If the last update for ...
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76 views

Authentication error when connecting to the Streaming API

I want to subscribe to PushTopic events from my Open CTI application. But I can't even connect to a cometd server. Help me find the problem with my solution. Or maybe there are other ways to subscribe ...
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44 views

Lightning empApi : Subscriber method calls in controller or helper js

Auto refreshing the lightning component, Below code works for without filter. handler doInit function called subscriber method. But after multiple filter button added in component and its not ...
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353 views

empApi with Lightning Web Components?

I have an LWC in which I want to use EMP API. Docs say that's only currently available in Aura. Do I have to wrap my entire LWC in aura in order to add the EMP API, or can I create a utility aura ...
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lightning:empApi is not working in summer19's sandbox: 403::Unknown client

I am receiving errors in lightning:empApi in the console. It was working fine before summer19 release in the sandbox. It works fine in scratch org. Scratch org is also on summer19. The error is ...
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EMP connector impl

I have some topics and users subscribed to this topics(user per topic). All examples contain only one user and topic and one instance of connector, so do i need to create a new connector instance ...
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Using CDC to detect changes in table definitions (DDL)

Can I use Capture Data Changes to get notifications on changes in the Salesforce table definitions, such as Add Column? Thanks in advance
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254 views

How to solve inconsistent 403::Unknown Client error on subscribe when using lightning:empApi

Every other time I attempt to use the lightning:empApi component to subscribe to a Push Topic channel the EMP API component reports error '403::Unknown Client' After the EMP API component reports the ...
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27 views

How to subscribe to different apps with different channels?

I am creating a system that integrate with the companys' salesforce data using the streamingpAPI and the subscriber model. What I understand is if an app input to my system the consumer key and the ...
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46 views

Why would I use Streaming API over Outbound Messages? [closed]

I have been looking into using the Streaming API for an upcoming integration project, and it seems like a modern way of providing near real-time data with durability. In the past I have let my ...
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37 views

Under what conditions isTransactionEnd in change events come as False?

I am doing the Subscribe to an Event Channel trail to learn about change events and confused about isTransactionEnd field that is returned in the header. Documentation Change Event Header Fields say ...
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Getting a list of clients listening to Streaming API - Debugging Recurring 403::Unkown client errors for PushTopics

We have a Ruby-on-Rails application which has a "listener" using Restforce(and a Faye 0.8.9 client) for 4 Push Topics from Salesforce. All our PushTopics are API version 41 A few days ago the ...
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256 views

How to use “jsforce” in an external HTML client for streaming api?

I am trying to use streaming API feature of salesforce, and be able to subscribe to the topic in an external client which is HTML based. My code is below: <html> <head> <...
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62 views

How to use the Streaming Monitor app?

I have downloaded the app, installed it, added myself to its permission set. Still, I cannot do anything in the tab. See the screenshot. The AppExchange page does not give any instructions, the Github ...
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how to send data from Kafka to Salesforce Streaming Api [duplicate]

i have done with the salesforce to Kafka already , i have some topics in KAFKA like Ptopic1 ,Ptopic2. so the thing here is i want live data of some latitude and longitude that comes from MQTT. i am ...
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Push topic and empApi filtered subscription not working after record page refresh (F5) [duplicate]

I need to use filtered subscription using lightning:empAPI for Push Topic notifications. But it does not work with Id filter after records page refresh (F5) whereas when it subscribes on the first ...
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64 views

Can we create platform event dynamically without using UI? [closed]

I want to create a platform event dynamically using any programming language. But I didn't find any API. Can you please tell me I can make platform event dynamically?
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153 views

Understanding who is consuming Platform Events, and how much, is it possible?

When a platform event is fired, it is consumed from whichever client is subscribed to its specific channel. If a single event is fired and consumed by 5 consumers, it will count 5 against the Daily ...
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148 views

Use Platform Event or Streaming API?

I am new to Salesforce Platform event and streaming API topics. After riffling through some documentation and getting enough confused, asking out for help here if anyone can suggest me the best ...
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337 views

Cannot subscribe to Capture Data Changes (CDC) channel using EMP Connector

I'm trying to implement CDC using the EMP Connector sample. I run it against the sandbox and try to subscribe to channels such as /data/ChangeEvents or /data/AccountChangeEvent. I always get this ...
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442 views

Can the cometd library be used in Salesforce to listen to external buses?

I'll confess up front that my knowledge of event architecture is limited: Can the cometd library that we can use to listen for Streaming API and Platform Events also be used to listen to external (i....
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177 views

Streaming API PushTopic VS Trigger and API Callout

I haven't used the Streaming API yet. I was just researching on it actually and I like the option for PushTopics. However it's not clear to me what's the advantage/difference using that versus a ...
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44 views

Streaming api sample code

I want sample code for streaming api which should not used any package. the code should not have js package or any. i want to understand how streaming api is working. could anyone help on that please
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Pushtopic for streaming api

I am currently trying to set up a stream api for email message. The problem I am currently having is that Pushtopics do not support email message(that I know of). Does anyone know of a work aound for ...
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1answer
119 views

Durable Message Replay from Change Data Capture

Given the following posts from Salesforce: Message Durability Replay Events Sample: Code Walkthrough StreamingReplayClientExtensions/java/CometDReplayExtension.java The way I'm understanding the ...
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2answers
1k views

Change Data Capture

With the new Change Data Capture tool coming out soon, why would someone use this over Platform Events? My understanding is that CDC utilizes Platform Events under the hood anyways.
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124 views

Notify or update salesforce records from external application

As Integration part is new to me so, tried little demo project which gets the external data and creates the record in custom object or so from a button click. Using HttpRequest method did all the API ...
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45 views

Streaming API to transfer FILES to online cloud storage

Using the SF documentation I have created a custom object with the FILES related list. Using workbench I can successfully see that it receives a message when a new record on that new object is ...
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Streaming API. How to resolve circular notification dependency

I have two different systems (salesforce (SF) and private one (PO)). They must be synchronized. To provide near real time synchronization on salesforce part we are using Streaming API (similar ...
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1answer
189 views

Salesforce Streaming API: configure Salesforce notification triggers for streaming

I'm trying to subscribe on notifications from salesforce using Streaming API. So I've done: I've created streaming channel I used java client I've generated events via REST API All this steps ...
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1answer
305 views

Publishing platform event using trigger?

I'm trying to stream changes to tables such as Accounts to a handler that will update our data warehouse. I tried pushtopics but ran into limitations in query size and longtext fields, so now I'm ...
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1answer
68 views

Salesforce Shield Decryption When Using API

Our application supports reading data from salesforce in a batch form and also as a real time sync. We have been using the salesforce SOAP api and the real time streaming api for the two use cases ...
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1answer
462 views

Subscribe to multiple channels using CometD

I'm trying to subscribe to multiple channels with CometD. I'm using the CometD static resource and syntax as per the Trailhead project: https://trailhead.salesforce.com/projects/workshop-platform-...
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1answer
2k views

Change Data Capture vs Platform Events vs Replication API vs Streaming API vs Batch Data Synchronization [closed]

I have a requirement to sync Salesforce data from 2 objects to Datawarehouse and insert/update data from Datawarehouse to Salesforce.We want this data sync to be realtime for this application.Data ...
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2answers
136 views

Pushtopic dynamic SOQL

Our front end web application (Salesforce treated as background in this case) makes a call to Salesforce when customer submit an application. The application process might take upto 2 minutes , so the ...
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1answer
159 views

Streaming API response on multiple windows

I have a VF page let's call it Aggregator. I display Project__c records on this page in a table, each row has a 'Refresh' icon on click of which a batch runs. The batch then does some calculation on ...
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212 views

Streaming API, does salesforce server disconnect client after some time?

For streaming API, does server force disconnect client after some time? If true, then how long the time is? Didn't find any documentation about this, but we found sometimes the client can't receive ...
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1answer
135 views

Initialise streaming client on button click, rather than init

I am using Mr Fawcett's the famous streaming component (https://github.com/afawcett/streamingcomponent) with his another great wrapper for deploying Custom Metadata Types (https://github.com/afawcett/...
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1answer
392 views

Platform Event for Guest Community User?

Can platform events be used for the unauthenticated guest user for communities? Looking to have a public-facing page that displays live statuses without requiring a log in. Streaming API appears to ...
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1answer
209 views

How to programmatically check if the Streaming API is enabled?

Is there a way to make an API call to Salesforce that would check if the Streaming API is enabled? I know how to check it in the UI - using this "Enable Streaming API" checkbox: But how to do it via ...
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107 views

Streaming API Notifications conflict vs polling

Using Streaming API in Lightning requires disabling In-App Notification and Mobile Push Notifications -- because both of these features use CometD (Streaming API) and you can only have one CometD ...
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1answer
385 views

Streaming Api >= 37.0 sending messages twice

Here's a side-by-side showing the issue that I'm currently facing. On the left, we have streaming api version 36.0, and on the right we have streaming api version 37.0 (all higher api versions had the ...
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79 views

Do I need to re initialize longpolling client with new access token on every connection session timeout?

Sample code how I'm initializing LongPollingTransport to create Bayeux client for subscribing pushtopic , LongPollingTransport transport = new LongPollingTransport(options, httpClient) {...
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455 views

Streaming API in Lightning Component getCallback error

I'm making a StreamingAPIListener Lightning component, built on this code from @Eric. (Thanks Eric.) The component loads up cometd from static resources, then runs doInit, which calls setupPushTopic, ...