# Developer Corner **URL:** https://community.temporal.io/c/developer-corner/20.md [Latest](https://community.temporal.io/latest.md) · [Categories](https://community.temporal.io/categories.md) · [Tags](https://community.temporal.io/tags.md) --- ## [About the Developer Corner category](https://community.temporal.io/t/about-the-developer-corner-category/4022)
**Author:** [@tihomir](https://community.temporal.io/u/tihomir)\ **Replies:** 0
Informative content from Temporal engineers Much of this info will be incorporated into our docs site. --- ## [The Lord of the Loop: in search of the best abstraction for LLM-driven Temporal applications with the simplest possible DX](https://community.temporal.io/t/the-lord-of-the-loop-in-search-of-the-best-abstraction-for-llm-driven-temporal-applications-with-the-simplest-possible-dx/18631)
**Author:** [@asuworks](https://community.temporal.io/u/asuworks)\ **Replies:** 4\ **Last updated:** [October 5, 2026, 9:30am UTC](https://community.temporal.io/t/the-lord-of-the-loop-in-search-of-the-best-abstraction-for-llm-driven-temporal-applications-with-the-simplest-possible-dx/18631 "2026-10-05T09:30:39Z")
All happy families are alike; each unhappy family is unhappy in its own way. By changing your point of view, you can completely reduce all this complexity. Code the happy path. ― Leo Tolstoy, Anna Karenina ― Maxim F… --- ## [A2A integration for Temporal](https://community.temporal.io/t/a2a-integration-for-temporal/19678)
**Author:** [@Sascha\_Coenen](https://community.temporal.io/u/Sascha_Coenen)\ **Replies:** 2\ **Last updated:** [October 4, 2026, 4:42pm UTC](https://community.temporal.io/t/a2a-integration-for-temporal/19678 "2026-10-04T16:42:22Z")
Hi everyone, I’m thrilled to see the work done so far on integrating Agent SDKs like ADK or Langraph into Temporal, but one giant piece of the puzzle that I find missing is an A2A integration for Temporal. It feels lik… --- ## [Can we use MariaDB for Temporal](https://community.temporal.io/t/can-we-use-mariadb-for-temporal/10955)
**Author:** [@Sreekanth\_P\_M](https://community.temporal.io/u/Sreekanth_P_M)\ **Replies:** 4\ **Last updated:** [September 24, 2026, 12:58pm UTC](https://community.temporal.io/t/can-we-use-mariadb-for-temporal/10955 "2026-09-24T12:58:32Z")
Hi Team, I would like to run temporal in AWS instance. Unfortunately I cannot use cassandra,elastic,postgress or elastic. Available DBs are Maria DB and Couchbase. Since MariaDB forked from mysql is it possible to use?I… --- ## [Is Temporal officially compatible with MySQL 9.x (9.7)?](https://community.temporal.io/t/is-temporal-officially-compatible-with-mysql-9-x-9-7/19750)
**Author:** [@wburon](https://community.temporal.io/u/wburon)\ **Replies:** 1\ **Last updated:** [August 5, 2026, 2:19pm UTC](https://community.temporal.io/t/is-temporal-officially-compatible-with-mysql-9-x-9-7/19750 "2026-08-05T14:19:26Z")
Hello, We are planning to deploy Temporal with a MySQL 9.x database (version 9.7). While reviewing the documentation, we found references to MySQL 5.7 and MySQL 8.0 as the officially tested versions, and the SQL toolin… --- ## [Early Signal should be ignored](https://community.temporal.io/t/early-signal-should-be-ignored/19406)
**Author:** [@aliman](https://community.temporal.io/u/aliman)\ **Replies:** 2\ **Last updated:** [July 23, 2026, 8:44am UTC](https://community.temporal.io/t/early-signal-should-be-ignored/19406 "2026-07-23T08:44:15Z")
Heya guys, wanted to see if there is different approach than this and if this IS the best way of going about it. Signal can be sent to a workflow definition at any time to approve/reject the process…it should only be a… --- ## [Way to send an Update from a workflow](https://community.temporal.io/t/way-to-send-an-update-from-a-workflow/13665)
**Author:** [@poojabhutada](https://community.temporal.io/u/poojabhutada)\ **Replies:** 4\ **Last updated:** [July 16, 2026, 1:04pm UTC](https://community.temporal.io/t/way-to-send-an-update-from-a-workflow/13665 "2026-07-16T13:04:26Z")
Hi, Can we send an “Update” from one workflow to another workflow? Also, I am unable to see a mechanism to send “Update” using ExternalWorkflowStub… Ref : Messages - Temporal Java SDK feature guide | Temporal Documenta… --- ## [AI Help on the doc site is not working](https://community.temporal.io/t/ai-help-on-the-doc-site-is-not-working/19609)
**Author:** [@nitinkumar30](https://community.temporal.io/u/nitinkumar30)\ **Replies:** 1\ **Last updated:** [July 1, 2026, 1:19pm UTC](https://community.temporal.io/t/ai-help-on-the-doc-site-is-not-working/19609 "2026-07-01T13:19:19Z")
AI Help on the doc site is not working --- ## [Patterns and configurations required to handle in-flight workflows during rolling updates of docker container images](https://community.temporal.io/t/patterns-and-configurations-required-to-handle-in-flight-workflows-during-rolling-updates-of-docker-container-images/19693)
**Author:** [@Mohan\_Vivekanantham](https://community.temporal.io/u/Mohan_Vivekanantham)\ **Replies:** 1\ **Last updated:** [July 1, 2026, 1:00pm UTC](https://community.temporal.io/t/patterns-and-configurations-required-to-handle-in-flight-workflows-during-rolling-updates-of-docker-container-images/19693 "2026-07-01T13:00:51Z")
Hi, Our server application is written in Java and uses Dropwizard as a base framework to bootstrap the server. The server application’s code has the workflows and activities definitions for various business process work… --- ## [Best practices for .NET Architecture](https://community.temporal.io/t/best-practices-for-net-architecture/19598)
**Author:** [@delyan](https://community.temporal.io/u/delyan)\ **Replies:** 0\ **Last updated:** [May 27, 2026, 9:11am UTC](https://community.temporal.io/t/best-practices-for-net-architecture/19598 "2026-05-27T09:11:07Z")
Hi everyone! I am completely new to Temporal and currently planning a .NET backend application. Since Temporal introduces concepts like Workflows, Activities, and Workers, I want to make sure I structure my project cor… --- ## [ASP .NET Core | AddHostedTemporalWorker returns "h2 protocol error: http2 error"](https://community.temporal.io/t/asp-net-core-addhostedtemporalworker-returns-h2-protocol-error-http2-error/19391)
**Author:** [@mpanchanka](https://community.temporal.io/u/mpanchanka)\ **Replies:** 1\ **Last updated:** [April 21, 2026, 9:37am UTC](https://community.temporal.io/t/asp-net-core-addhostedtemporalworker-returns-h2-protocol-error-http2-error/19391 "2026-04-21T09:37:19Z")
Hello everyone! We deployed a temporal server on 443 port. I played with examples by this link to setup own worker and paid attention to this method “AddHostedTemporalWorker” from the “TemporalioSamples.AspNet.Worker” e… --- ## [Design pattern for providing workflow-level customization in Temporal agents built using a code-first approach](https://community.temporal.io/t/design-pattern-for-providing-workflow-level-customization-in-temporal-agents-built-using-a-code-first-approach/19377)
**Author:** [@Mandar](https://community.temporal.io/u/Mandar)\ **Replies:** 0\ **Last updated:** [March 6, 2026, 6:31am UTC](https://community.temporal.io/t/design-pattern-for-providing-workflow-level-customization-in-temporal-agents-built-using-a-code-first-approach/19377 "2026-03-06T06:31:02Z")
I’m building an agent platform on Temporal (Python SDK) where agents and workflows are implemented using a code-first approach. These workflows orchestrate multiple activities and AI-driven steps to perform tasks such as… --- ## [Is it possible to execute temporal workflow using HTTP REST calls](https://community.temporal.io/t/is-it-possible-to-execute-temporal-workflow-using-http-rest-calls/19269)
**Author:** [@maheshmore](https://community.temporal.io/u/maheshmore)\ **Replies:** 4\ **Last updated:** [February 23, 2026, 9:44pm UTC](https://community.temporal.io/t/is-it-possible-to-execute-temporal-workflow-using-http-rest-calls/19269 "2026-02-23T21:44:56Z")
Hi Team, Currently we are using the Temporal DotNet SDK for all the temporal communication but now we are exploring the Nexus service, so we are pretty much new here and under impression that we can replace our SDK impl… --- ## [NET SDK: Nexus WorkflowRunOperationHandler bypasses Interceptors and lacks Header support](https://community.temporal.io/t/net-sdk-nexus-workflowrunoperationhandler-bypasses-interceptors-and-lacks-header-support/19239)
**Author:** [@maheshmore](https://community.temporal.io/u/maheshmore)\ **Replies:** 6\ **Last updated:** [February 5, 2026, 1:39pm UTC](https://community.temporal.io/t/net-sdk-nexus-workflowrunoperationhandler-bypasses-interceptors-and-lacks-header-support/19239 "2026-02-05T13:39:11Z")
The Problem: I am implementing a Nexus Service using the .NET SDK. In my WorkflowRunOperationHandler, I receive headers from the incoming Nexus request via WorkflowRunOperationContext.HandlerContext.Headers. I need to p… --- ## [Q&A from Deep Agents / Scale AI webinar](https://community.temporal.io/t/q-a-from-deep-agents-scale-ai-webinar/19192)
**Author:** [@temporal\_angie](https://community.temporal.io/u/temporal_angie)\ **Replies:** 0\ **Last updated:** [January 21, 2026, 6:44pm UTC](https://community.temporal.io/t/q-a-from-deep-agents-scale-ai-webinar/19192 "2026-01-21T18:44:19Z")
We had so many great questions during our Deep Agents webinar yesterday with @Steve\_Androulakis and Daniel Miller at Scale AI! We ran out of time to answer all the questions, so here are the answers to help clarify the … --- ## [Get huge chunks of data from s3 / dynamo without using an activity to be used inside workflow for analysis](https://community.temporal.io/t/get-huge-chunks-of-data-from-s3-dynamo-without-using-an-activity-to-be-used-inside-workflow-for-analysis/18751)
**Author:** [@Shobhit\_Umrao](https://community.temporal.io/u/Shobhit_Umrao)\ **Replies:** 2\ **Last updated:** [December 18, 2025, 6:25pm UTC](https://community.temporal.io/t/get-huge-chunks-of-data-from-s3-dynamo-without-using-an-activity-to-be-used-inside-workflow-for-analysis/18751 "2025-12-18T18:25:49Z")
Inside a workflow, we have getData bringing in huge loads of data directly from s3 using a reference, we use this data and transform it to the final output payload, we save this payload using saveData sending it back dir… --- ## [Where to deploy the worker?](https://community.temporal.io/t/where-to-deploy-the-worker/18750)
**Author:** [@rogierl](https://community.temporal.io/u/rogierl)\ **Replies:** 4\ **Last updated:** [December 18, 2025, 4:15pm UTC](https://community.temporal.io/t/where-to-deploy-the-worker/18750 "2025-12-18T16:15:38Z")
Hey, I’m totally new to Temporal and I’m doing a proof-of-concept to find out if temporal would be a solution for our use case. I followed the example project in the documentation of temporal (the ip-address lookup flow)… --- ## [Spring Boot integration is now in GA](https://community.temporal.io/t/spring-boot-integration-is-now-in-ga/18770)
**Author:** [@Conna\_Lanzafane](https://community.temporal.io/u/Conna_Lanzafane)\ **Replies:** 0\ **Last updated:** [December 16, 2025, 6:14pm UTC](https://community.temporal.io/t/spring-boot-integration-is-now-in-ga/18770 "2025-12-16T18:14:19Z")
:waving\_hand: Hi all! We’re excited to share that Temporal’s integration with the Spring Boot framework is generally available for Java SDK users. Read the brand new docs :books: --- ## [Worker Versioning -- Getting Started](https://community.temporal.io/t/worker-versioning-getting-started/18616)
**Author:** [@Madboly\_TemporalFan](https://community.temporal.io/u/Madboly_TemporalFan)\ **Replies:** 2\ **Last updated:** [November 4, 2025, 5:29pm UTC](https://community.temporal.io/t/worker-versioning-getting-started/18616 "2025-11-04T17:29:16Z")
The instructions are a bit unclear to me — after making changes to workflows, do I need to redeploy my workers with the updated configuration parameters? For example, if I change the build\_id (which we bump whenever w… --- ## [Child Workflow Creation Times Out When Creating More Than 20](https://community.temporal.io/t/child-workflow-creation-times-out-when-creating-more-than-20/18434)
**Author:** [@mrstrozy](https://community.temporal.io/u/mrstrozy)\ **Replies:** 3\ **Last updated:** [September 29, 2025, 10:22pm UTC](https://community.temporal.io/t/child-workflow-creation-times-out-when-creating-more-than-20/18434 "2025-09-29T22:22:07Z")
Hi - I’ve been scale testing my temporal workflow structure. I’m looking to scale my service and my main concern is the temporal limits (history, transitions/sec, etc). With this, I’ve split some of my logic into batches… --- ## [Temporal Activity is somehow not generating a new uuid string while using uuid.New()](https://community.temporal.io/t/temporal-activity-is-somehow-not-generating-a-new-uuid-string-while-using-uuid-new/18287)
**Author:** [@Anshum17](https://community.temporal.io/u/Anshum17)\ **Replies:** 2\ **Last updated:** [September 3, 2025, 4:07pm UTC](https://community.temporal.io/t/temporal-activity-is-somehow-not-generating-a-new-uuid-string-while-using-uuid-new/18287 "2025-09-03T16:07:11Z")
I have this activity code: --------- service/main.go ------------ w := worker.New(temporalClient, TemporalTaskQueueName, wo) w.RegisterWorkflow(dataretention.Workflow) w.RegisterActivity(a) ------- activity code -----… --- ## [What are the shortcomings of running Temporal with SQLite in production (for small-scale use cases)?](https://community.temporal.io/t/what-are-the-shortcomings-of-running-temporal-with-sqlite-in-production-for-small-scale-use-cases/18257)
**Author:** [@omid\_gholami](https://community.temporal.io/u/omid_gholami)\ **Replies:** 1\ **Last updated:** [August 22, 2025, 6:12pm UTC](https://community.temporal.io/t/what-are-the-shortcomings-of-running-temporal-with-sqlite-in-production-for-small-scale-use-cases/18257 "2025-08-22T18:12:54Z")
Hey, I’ve noticed in the Temporal docs that SQLite v3.x persistence is supported, but only for development and testing, not for production. I understand that PostgreSQL and MySQL are the officially supported production … --- ## [I want Advice on Handling Complex Workflow Failures in Temporal](https://community.temporal.io/t/i-want-advice-on-handling-complex-workflow-failures-in-temporal/18206)
**Author:** [@Olivia](https://community.temporal.io/u/Olivia)\ **Replies:** 1\ **Last updated:** [August 18, 2025, 8:45pm UTC](https://community.temporal.io/t/i-want-advice-on-handling-complex-workflow-failures-in-temporal/18206 "2025-08-18T20:45:27Z")
Hi everyone, I have been experimenting with building workflows that involve multiple dependent activities. While the basics are working fine; I am facing issue when it comes to handling failures in a clean & efficient w… --- ## [Activities Not Scheduled After First Activity Completes](https://community.temporal.io/t/activities-not-scheduled-after-first-activity-completes/18185)
**Author:** [@Sergio\_Franco](https://community.temporal.io/u/Sergio_Franco)\ **Replies:** 9\ **Last updated:** [August 15, 2025, 11:45pm UTC](https://community.temporal.io/t/activities-not-scheduled-after-first-activity-completes/18185 "2025-08-15T23:45:14Z")
Hi everyone, I’m having an issue where my workflow only executes the first activity and then times out. The workflow starts, calls the first activity (alpha), but never schedules the subsequent activities. What’s happe… --- ## [Rolling Update Downtime Issue with Temporal Deployment in all environments](https://community.temporal.io/t/rolling-update-downtime-issue-with-temporal-deployment-in-all-environments/18177)
**Author:** [@Amuri\_Nagendra\_Babu](https://community.temporal.io/u/Amuri_Nagendra_Babu)\ **Replies:** 0\ **Last updated:** [August 12, 2025, 7:29am UTC](https://community.temporal.io/t/rolling-update-downtime-issue-with-temporal-deployment-in-all-environments/18177 "2025-08-12T07:29:27Z")
Hello everyone, We’re facing a persistent issue with our Temporal deployment that’s causing brief downtime during rolling updates, and we’re hoping to get some insights and suggestions from the community. Problem Descr… --- ## [How to pass multiple parameters using temporal CLI input command?](https://community.temporal.io/t/how-to-pass-multiple-parameters-using-temporal-cli-input-command/17582)
**Author:** [@Chao\_Xie](https://community.temporal.io/u/Chao_Xie)\ **Replies:** 4\ **Last updated:** [July 25, 2025, 3:00pm UTC](https://community.temporal.io/t/how-to-pass-multiple-parameters-using-temporal-cli-input-command/17582 "2025-07-25T15:00:51Z")
Hi there, I’ve got a question regarding using temporal CLI to pass multiple parameters via input command. e.g. my workflow signature is : createAccount(String payload, CashAccountDto request, String workflowId); //ret… --- ## [Multiple Nexus Callbacks With one Workflow](https://community.temporal.io/t/multiple-nexus-callbacks-with-one-workflow/17996)
**Author:** [@\_Elbek\_Khoshimjonov](https://community.temporal.io/u/_Elbek_Khoshimjonov)\ **Replies:** 0\ **Last updated:** [July 23, 2025, 9:25pm UTC](https://community.temporal.io/t/multiple-nexus-callbacks-with-one-workflow/17996 "2025-07-23T21:25:38Z")
Is it possible to have multiple callbacks work with a single workflow? I have a Nexus operation that starts a workflow, but this is used in multiple places. operation: var Operation = temporalnexus.NewWorkflowRunOperat… --- ## [Strange behaviour when adding activity to worker](https://community.temporal.io/t/strange-behaviour-when-adding-activity-to-worker/17972)
**Author:** [@Svet](https://community.temporal.io/u/Svet)\ **Replies:** 4\ **Last updated:** [July 22, 2025, 4:54pm UTC](https://community.temporal.io/t/strange-behaviour-when-adding-activity-to-worker/17972 "2025-07-22T16:54:18Z")
Hi all, I have noticed something strange when registrating activity with a worker. If I have a class structure with the following structure: CommonActivity interface with method getName ActivityInterface1 extends Commo… --- ## [Big Ask: Logs in WebUI](https://community.temporal.io/t/big-ask-logs-in-webui/17608)
**Author:** [@Albert\_L](https://community.temporal.io/u/Albert_L)\ **Replies:** 7\ **Last updated:** [July 18, 2025, 6:28pm UTC](https://community.temporal.io/t/big-ask-logs-in-webui/17608 "2025-07-18T18:28:18Z")
Hi, I have a big feature request. I would like to be able to see logs in the WebUI. This means when calling the logging function in the SDK, it would show up in the workflow or activity view in the Temporal web UI. I … --- ## [How can i track workflow state changes to save in my database?](https://community.temporal.io/t/how-can-i-track-workflow-state-changes-to-save-in-my-database/17907)
**Author:** [@Sergio\_Franco](https://community.temporal.io/u/Sergio_Franco)\ **Replies:** 6\ **Last updated:** [July 15, 2025, 10:23pm UTC](https://community.temporal.io/t/how-can-i-track-workflow-state-changes-to-save-in-my-database/17907 "2025-07-15T22:23:12Z")
Hello, I’m looking to store state changes in my temporal workflows to my database, i see that temporal doesn’t have open webhooks to monitor changes. What im currently thinking is having calls to my API from within work… [Next page](https://community.temporal.io/c/developer-corner/20.md?page=1)