Nexus sync operations that send messages to an entity workflow#252
Nexus sync operations that send messages to an entity workflow#252dandavison merged 11 commits intomainfrom
Conversation
dandavison
force-pushed
the
nexus-sync-operations-against-workflow
branch
from
3eab7c0 to
9fe1869
Compare
dandavison
force-pushed
the
nexus-sync-operations-against-workflow
branch
2 times, most recently
from
9538e1d to
86c40ea
Compare
dandavison
force-pushed
the
nexus-sync-operations-against-workflow
branch
from
86c40ea to
78b2f52
Compare
|
|
||
| from temporalio import workflow | ||
|
|
||
| from message_passing.introduction import Language |
There was a problem hiding this comment.
We had traditionally had all samples self-contained in all of our SDKs (i.e. they didn't reference each other), but maybe that's no longer what we want?
There was a problem hiding this comment.
Yes, let's allow this one to reference. IMO it is educational / instructive: it's showing users that nexus allows a "service" to be transplanted without changes and given a nexus interface callable from another namespace.
| supported_languages = await nexus_client.execute_operation( | ||
| GreetingService.get_languages, GetLanguagesInput(include_unsupported=False) | ||
| ) | ||
| print(f"supported languages: {supported_languages}") |
There was a problem hiding this comment.
Would discourage use of print in workflows
There was a problem hiding this comment.
Thanks, changed to return log: list[str]
There was a problem hiding this comment.
I was under the impression we are only doing this "description" markdown on the "hello" Nexus sample? Do we need to start doing this for all samples?
There was a problem hiding this comment.
Yes I think all nexus endpoints in samples should have a description. The feature exists and we want to encourage users to use it, and it is nicely rendered in the UI.
|
|
||
| # 👉 This is a handler for a nexus operation whose internal implementation involves executing an | ||
| # update against a long-running workflow that is private to the nexus service. | ||
| @nexusrpc.handler.sync_operation |
There was a problem hiding this comment.
In theory an update can be long running and we should demonstrate async operation with it, but I understand if we need some kind of server side support for update callbacks or something for that. May be worth noting though, up to you.
There was a problem hiding this comment.
Added a note explaining that updates must be fast when used in a sync operation. Yes, async nexus operations backed by updates do not exist yet and would require server-side nexus callback support in the server-side update state machine.
dandavison
changed the title
2 participants
See temporalio/features#664
message_passing/introductionsample for the entity workflow backing the handler.approvesignal does not terminate the workflow, as it does currently.