Integration Retry Logic

To handle retry logic in Apex for callouts (like retrying 2 failed records up to 3 times), you can use Queueable Apex with the Database.AllowsCallouts interface combined with custom exception handling or tracking failed record IDs. Try the following.

public class IntegrationRetryQueueable implements Queueable, Database.AllowsCallouts {
    private List<Id> recordIds;
    private Integer retryCount;
    public IntegrationRetryQueueable(List<Id> recordIds, Integer retryCount) {
        this.recordIds = recordIds;
        this.retryCount = retryCount;
    }
    public void execute(QueueableContext context) {
        List<Id> failedRecords = new List<Id>();
        for (Id recId : recordIds) {
            try {
                // Perform your external callout logic here for recId
                HttpResponse response = makeCallout(recId);
                if (response.getStatusCode() != 200) {
                    failedRecords.add(recId);
                }
            } catch (Exception e) {
                // Catch connection timeouts or callout exceptions
                failedRecords.add(recId);
            }
        }
        // If there are failures and we haven't hit the 3-attempt limit, chain the job
        if (!failedRecords.isEmpty() && retryCount < 3) {
            if (!Test.isRunningTest()) {
                System.enqueueJob(new IntegrationRetryQueueable(failedRecords, retryCount + 1));
            }
        }
    }
    private HttpResponse makeCallout(Id recId) {
        // Implement your HttpRequest and Http send logic here
        Http h = new Http();
        HttpRequest req = new HttpRequest();
        req.setEndpoint('https://api.yourtargetsystem.com/endpoint');
        req.setMethod('POST');
        // Set body based on recId...
        return h.send(req);
    }
}