Error binding Blob to IAsyncCollector when binding to output blob in Async method

Question

I\'m trying to bind to a blob output in an Async method following this post: How can I bind output values to my async Azure Function?

I have multipl

Answer 1

You can use the Blob-Binding.

I preferred this way, because I'm able to specify the ContentType.

 [FunctionName(nameof(Store))]
    public static async Task Store(
        [HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)] HttpRequest req,
        [Blob(
            "firstcontainer",
            FileAccess.Read,
            Connection = "blobConnection")] CloudBlobContainer blobContainer,
        ILogger log)
    {
        string requestBody = await new StreamReader(req.Body).ReadToEndAsync();

        string filename = "nextlevel/body.json";

        CloudBlockBlob blob = blobContainer.GetBlockBlobReference($"{filename}");
        blob.Properties.ContentType = "application/json";
        await blob.UploadTextAsync(requestBody);

        return (ActionResult)new OkResult();
    }