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Typed proxy support

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
java

Research direction

Start with the requirements and the linked Java Proxy documentation. Define the scope for typed activity, orchestration, and sub-orchestration invocation, including the proposed unit-testing experience. Done means the Java SDK provides a documented type-safe proxy approach covering all three invocation cases.

Written by the indexing model from the issue text.

Description

Requirements

In order to create a type-safe experience for working with orchestrations and activities, the Java SDK for the Durable Task Framework should support type-safe invocation of orchestration and activities.

For example, when calling an activity, instead of the following:

Object activityInput = "World";
String result = context.callActivity("SayHello", activityInput, String.class).get();

...we should be able to instead write:

MyActivities activities = // get a pointer to an activity proxy
String result = activities.sayHello("World");

We'd want the same experience also for orchestrations (created by a client) and sub-orchestrations.

Ideally this support will also allow developers to easily unit test their code.

Design considerations

Java's Proxy support could be a good starting point for such a feature.

Dominant language
Java
Stars
29
Forks
18
Avg merge
1d 10h
Merged PRs (30d)
2

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  4. Open a pull request that references the issue number.

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