Hey guys, Really enjoying temporal and appreciate all your hard work! I have a seemingly simple question and I suspect maybe I’m just not thinking about it correctly. Perhaps I could get some guidance as the best way to design a workflow between microservices. Here is the sequence of events that…

You can have a single workflow that makes all the service calls. Make sure the service calls are idempotent, and use try/catch to repair state. For example: const { reserve, unreserve, charge, refund, sendPackage } = proxyActivities< typeof activities >({ startToCloseTimeout: '1 minute', }) ex…

I would add that activities can be hosted by different services. So the same workflow is going to work without control flow changes. The only difference would be that activities running in service A and B should be scheduled on different task queues.

Thank you. Great job on the talk by the way!

@maxim thx for chiming in! Question about your comment. If I understand what you are saying, this would be ideal and actually what I expected. I’m just unsure how to implement it. Continuing with Loren’s example code – let’s say the ‘charge’ activity exists in a Payment Service separate from th…

If you have existing services with APIs, the simplest thing to do is call the APIs from the Activities—one Activity per API call. In this scenario, you have a single Worker, and it has all the Workflows and Activities, and everything’s on a single task queue. Max’s system has 2 or 3 different types…

:tada: :sunglasses: :clap: Thank you. I finally got this working. This is what I was missing: const { charge, refund } = proxyActivities< typeof paymentActivities >({ startToCloseTimeout: '1 minute', taskQueue: 'payments' <---- VERY IMPORTANT }) const { sendPackage } = proxyActivities< …

Microservice Workflow Design

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maxim August 6, 2022, 5:26pm 7

This post explains the differences between “call service from an activity” or “service directly implementing an activity” approaches.

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Microservice Workflow Design

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