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@EventHubTrigger cannot deserialize HttpResponseMessage. What is best way to deserialize HttpResponseMessage?

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#74 3 comments 2 reactions 0 assignees View on GitHub

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
20/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
azure, java
Domain
api, backend

Research direction

Start by examining the @EventHubTrigger parameter binding and the HttpResponseMessage interface mentioned in the report. Reproduce the Gson deserialization failure, then determine whether the supported behavior or documentation should explain how messages written from an @HttpTrigger can be consumed; done requires a clear, tested resolution.

Written by the indexing model from the issue text.

Description

area:java-functions

I have a function(@HttpTrigger) which writes HttpResponseMessage to email topic. I am trying to create another function(@EventHubTrigger) to read message from this topic.

@FunctionName("EventHubTrigger-EmailCurated")
    public void run(
            @EventHubTrigger(name = "httpResponseMessage", eventHubName = "email", connection = "AzureEventHubConnection") HttpResponseMessage httpResponseMessage,
            final ExecutionContext context) {
        logger = context.getLogger();
        logger.info("EventHubTrigger-EmailCurated received a httpResponseMessage : " + httpResponseMessage);
}
Stack: java.lang.RuntimeException: Unable to invoke no-args constructor for interface com.microsoft.azure.functions.HttpResponseMessage. Registering an InstanceCreator with Gson for this type may fix this problem.
Caused by: java.lang.UnsupportedOperationException: Interface can't be instantiated! Interface name: com.microsoft.azure.functions.HttpResponseMessage

I understand HttpResponseMessage is an interface. Is there any implementation class available that I can cast to?

Dominant language
Java
Stars
45
Forks
49
PR merge metrics
No merged PRs in 30d

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