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javaazure-functionsazure-storagemicronaut

Get the message metadata from an Azure Function QueueTrigger using Java

I am writing an Azure Function in Java using the Micronaut framework.

My function works perfectly fine if I use the @QueueTrigger to annotate a String to receive a message body. However I would also like to process the metadata.

The documentation makes mention of Metadata (https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-queue-trigger?tabs=java#message-metadata) and "suggests" the CloudQueueMessage class, which doesn't seem to be available in the com.microsoft.azure.funtions:azure-functions-java-library I even tried including the com.azure:azure-storage-queue library on the off chance.
(As far as I can tell azure-functions-java-library hasn't moved over to the com.azure name space/GAV yet)

Is it possible to obtain the Storage Queue message metadata using Java and if so, what am I missing?

Thanks

Solution

  • It seems that I was missing something, that you can "bind" to properties of the metadata that are held in CloudQueueMessage class.

    So for my use case all I need to do is add the following to the function method:

    @BindingName("Id") final String id,

    The following links are all to Microsoft documentation, the last one of which is hosted on github.
    Trigger Metadata definition
    QueueStorage Trigger
    Example that actually accesses the metadata