Questions tagged [asynchronous]
An asynchronous process is a process or function that executes a task "in the background" without the user having to wait for the task to finish. Typically, you will use Asynchronous programming for callouts to external systems, operations that require higher limits, and code that needs to run at a certain time.
168
questions
-1
votes
1answer
40 views
Future method use response to make update on Opportunity object
I have a future method where I make an external REST api call which gets kicked off in an after update trigger on the Opportunity object.
When the results come back, I deserialize the JSON and then ...
1
vote
1answer
32 views
RequestAnimationFrame in LWC
I'm implementing a pretty straight-forward animation in LWC (Lightning Web Components). My normal approach to doing animations within JS is to use requestAnimationFrame, but the linter rules in LWC ...
0
votes
3answers
33 views
Can Queueable run in parallel with calling transaction?
SimpleQueueable.cls:
public with sharing class SimpleQueueable implements System.Queueable{
public void execute(System.QueueableContext ctxt){
//query the record inserted in calling ...
0
votes
0answers
31 views
Salesforce Synchronous and Asynchronous Web Service Callouts
Just trying to clarify some confusion. From my understanding, we can use Salesforce to make Web Service Callouts in an Asynchronous manner in 3 different ways; using @Future, Outbound Messages and ...
0
votes
0answers
41 views
Finding out when lightning-record-form has finished rendering?
I have a LWC which displays the Compact Layout as a popup in a graph using lightning-record-form. The LWC holds a <slot> in which the popup-lwc has the record for like so.
<template>
&...
3
votes
1answer
48 views
Does the FOR UPDATE field apply to reference fields?
If do a query like [SELECT Opportunity.Name, Product2.Name FROM OpportunityLineItem FOR UPDATE], is the Opportunity and Product2 locked, or just the OpportunityLineItem? I'm trying to set a field on ...
4
votes
1answer
91 views
Avoid new record race conditions with FOR UPDATE [closed]
Under simple circumstances FOR UPDATE does only respect records that existed when the query was executed. But I need all available records matching my query when the transaction proceeds.
Let me ...
0
votes
2answers
33 views
Get ApexJobId from Future method
Is it possible to get the ApexJobId within the Future method apex code (or from the method its invoked from)?
Use case - Our application is invoking multiple same future calls from within one apex ...
1
vote
1answer
24 views
How come Queuable apex accepts sobjects where as future methods doesn't? [duplicate]
As we know we cant pass sobjects to @future method due stale of data during the processing time,where as not same in case of Queable apex.How exactly its working by using Sobjects here?
2
votes
1answer
103 views
How to tell my lightning web component the data has been loaded through a mix of imperative and @wire operations
TL;DR whats the best way to tell a page that the underlying data has loaded through a mix of imperative calls and wire calls, preferably without chaining .then functions
Long Version:
I have 4 async ...
0
votes
2answers
39 views
System.isScheduled() not working in Scheduler/Batch
I have a Scheduler class which executes a batch class. I also execute this batch class from a VF page.
Deep down in the class hierarchy, I want to check if this batch was called from a Scheduler or a ...
3
votes
1answer
59 views
Change Data Capture vs Queueable Apex
With the introduction of Change Data Capture, now there is one more way to execute Asynchronous Apex.
What are the advantages of Change Data Capture over Queueable Apex?
How Salesforce will enqueue ...
1
vote
1answer
123 views
Why isn't my platform event chain working?
I've create the following method:
//@NotForProduction
public class TEST_SandboxDataFactory {
public static void create() {
List<String> sObjectTypeNameList = new List<String>()...
0
votes
1answer
41 views
Why isn't my Queueable chain working?
I have the following class, none of the dependencies invoke Queueable:
public class TEST_SandboxDataFactory {
public static void create() {
List<SObjectType> sObjectTypeList
...
4
votes
1answer
58 views
Does Apex Engine maintains old version of apex code for Async Apex?
Suppose I have a batch running that is processing millions of records(that would take hours), then I deploy a code during execution that changes the batch logic, will remaining record get processed ...
0
votes
0answers
9 views
How come my enqueued class is still getting executed in my unit test when I never call start/stopTest methods? [duplicate]
Per salesforce docs (https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_tools_start_stop_test.htm):
All asynchronous calls made after the startTest method are ...
4
votes
0answers
45 views
Can a Change Event Trigger include the same record multiple times?
I'm starting to play with Change Event Triggers, building a handler framework and I'm not sure if I need to handle a scenario where the same record would be included in the same Change Event trigger ...
3
votes
1answer
62 views
When and why do I need to perform an .isValid() check?
This document - Modifying Components Outside the Framework Lifecycle - says the following:
You don't need a cmp.isValid() check within this setTimeout() call as
the cmp.set() call doesn't do ...
2
votes
0answers
36 views
Why use Change Event triggers over existing async methods? [duplicate]
When and why should we use Change Event Triggers over @future or queueable methods?
Also do they use sync or asynch limits? I cannot find any clear documentation stating this.
4
votes
2answers
88 views
Spin locks with variable time retry backoffs
Use Case
After insert triggers start Queueable
Queueable execute() contends for same resource, uses spin lock to wait for resource availability. Many queueables could be running at same time.
...
2
votes
1answer
102 views
Get the actual Previous Fire Time of a CronTrigger / Scheduled Apex
I am exeuting Scheduled Apex that should do processing based on the last execution time of the particular code. I query some records for processing and I only want to query those records, that have ...
-2
votes
1answer
67 views
System.AsyncException in trigger
Trigger Snippets:
if (JIRA.currentUserIsNotJiraAgent()) {
if(System.isFuture() == false || System.isBatch() == false ||
System.isScheduled() == false) { //Check, If Not in any Async Apex ...
5
votes
2answers
90 views
How to disable asynchronous jobs so that they cannot update data
There will be a data export happening from our org for large number of objects and records using a cloud based ETL tool.
We have a business scenario where we need to make sure that there is no data ...
1
vote
1answer
71 views
Uncommited work exception in Queuable with Callback and Rollback
Is there a way to do all that
Do Callout in Queueable
Do Dml based on the Callout result
Catch errors in 1 and 2.
Rollback 1, 2 on error
Report error via email and log in Custom object
without ...
4
votes
2answers
275 views
Send out email when Apex Queueable fails and test it
This question definitely is a duplicate of many questions here, but after reading most of them I am still somewhat clueless.
Question 1: why I can't just catch exceptions in the execute and send an ...
2
votes
1answer
225 views
Waiting for results from APEX call in a for loop
I need to load a number of records more than the 2000 default limit for an SOQL query, but I need to wait until all of them are loaded before moving on. To do this, I make a request to get the total ...
0
votes
1answer
27 views
async internal calls from visualforce, any quick examples?
often async calls are used to callout, but what do async calls look like when an org asynchronously queuries itself, so what do “internal async calls” look like in general, and when done from ...
2
votes
3answers
145 views
Overcome Queueable maximum depth limit in dev orgs
To migrate "trees of related data" from an external system to Salesforce I am using dynamic chains of Apex Queueables. Imagine I am "synchronizing" Accounts, Opportunities and Contacts from an ...
-3
votes
2answers
18 views
While trying to run ScheduleApex it give error
//This is code
global class Schedule1 Implements Schedulable{
global void execute(SchedulableContext sc){
List<Account> accounts=[SELECT ID,NAME,INDUSTRY FROM ACCOUNT WHERE NAME='...
0
votes
0answers
146 views
Using promises with aura component callbacks
I noticed there a number of questions listed regarding this topic but I don't have the time to parse through all of them and look for the relevant information. I was hoping someone could quickly ...
0
votes
1answer
131 views
What is the life-cycle of static properties in Apex classes?
Sometimes when developing Apex, I've populated some static property.
But then later -- most often in an Async or Test context -- I go to access it again and discover SFDC is behaving like it is ...
1
vote
0answers
58 views
Calling Salesforce Rest Webservice url from vf controller
Hi I am trying to make a rest callout from controller and I am not been able to get response . I am using apex continution callout pattern for this to make call async.
This is controller class
...
1
vote
1answer
88 views
Command pattern with batch finish method
To chain a execution of a batchable object, I pass the batchable contructor a ICommand.
public interface ICommand {
void Execute();
}
When testing this approach I create a test ICommand which ...
2
votes
2answers
139 views
Unable to do callout from PostInstall Script
As per the Salesforce documentation, Post-Install script can perform callouts using an async operation only.
https://help.salesforce.com/articleView?id=apex_post_install_script.htm&type=5
So, I ...
2
votes
2answers
383 views
How do static and member variables behave in a. stateful batch classes?
Suppose I have a batch job and I want to maintain state (i.e. want to keep a log of the record ids that I've processed, or keep a running total, or something).
When would I use class variables vs. ...
0
votes
0answers
69 views
Getting status null in apex continution callouts
I am getting this response for all urls
System.HttpResponse[Status=null, StatusCode=200] in my continution object
Here's my code
public with sharing class ContinuationController {
// Unique ...
1
vote
0answers
20 views
Custom component taking long time to load
I'm having a record page with an heavy custom components.
By heavy I means like 20 seconds of loading time.
I'm trying to find a way to load it asyncronously without blocking the UI of the User.
...
6
votes
1answer
850 views
How do I test asynchronous Apex?
This is a canonical question and answer developed by the community to help address common questions. If you've been directed here, or your question has been closed as a duplicate, please look through ...
0
votes
1answer
231 views
Exception in @Future Method - System.QueryException: Record Currently Unavailable
I am facing error in one of future method (calling from trigger handler). This error occurs when integration event submit these record in bulk but when i am doing this from UI i do not get this error. ...
5
votes
2answers
216 views
Enforce Batches (whole run, not single jobs) to wait for each other
A few situations in my app trigger a Clean up batch to run. It will process many records. In some situations multiple of such Cleanup batches will be triggered by independent user operations.
If the ...
-1
votes
2answers
262 views
Design Patterns for Asynchronous Apex
Background
After listening to Dan Appleman's talk:
Dreamforce 13: Design Patterns for Asynchronous Apex
I went to look at the code:
Sample Code: Design Patterns for Asynchronous Apex
...
2
votes
1answer
332 views
Platform Events + Process Builder + Apex with @future method
I'm running into an issue with too many future calls when handling Platform Events with a Process Builder that uses an invocable Apex class.
Basic setup is 2 processes:
The first publishes an event ...
3
votes
1answer
498 views
Custom Logging and Future Methods
I have been reading up on the custom logging, DML, and exceptions but haven't seen anything that talks about @Future methods and exceptions.
I have two scenarios:
A Button is clicked on a Lead, ...
1
vote
1answer
82 views
Initialize jQuery plugins with ui:outputRichText in Lightning component
I have a Lightning component that displays record's content as rich text. The content contains HTML code and I need to make it work with jQuery on click handler and some plugins.
The content comes ...
0
votes
3answers
387 views
Is asynchronous apex either rolled back or not executed if the original transactions fails?
I would like to confirm the behaviour of asynchronous apex when an error occurs on its original/parent transaction.
Imagine we have a synchronous apex transaction (Transaction1-Apex) that launches a ...
1
vote
2answers
210 views
Can Salesforce Platform Events be Relied on as an Async Solution?
Recently I was working on a project where, in order to deal with recursion and governor limits, the previous developer decided to send Platform Events, with the expectation that the very same ...
0
votes
1answer
108 views
Issues in Scheduled Apex
Error:First error: Delete failed. First exception on row 0 with id
a2A0R000003T2DMUA0; first error: ENTITY_IS_DELETED, entity is deleted:
[]
Note: Above error occurs to me as a concurrency Issue.
...
0
votes
1answer
71 views
What async notification options are available in OOB LEX UI?
I have created a trigger that validates user input against a web service after insert/update. Originally, I wanted to show a validation error on the data entry screen, but this is not possible due to @...
2
votes
2answers
263 views
Queueable Apex consideratoins
This is more of a theoretical question and probably goes more to design and I hope I can do this justice.
I have successfully coded in apex multiple triggers which make callouts using the @future (...
1
vote
1answer
98 views
Execute Javascript on VFP from Controller Query Results [closed]
I have a Visualforce Page with inputs, these input values are passed to a controller, query results are returned, and results are displayed in a datatable on the same VFP with inputs.
If the list I ...
