Azure Functions does not work if length of the querystring is over 2048 (for v2)

[koskila]

Investigative information

This is most likely the same issue described in #2331 , just for 2.0-beta instead of 1.0.

Note: I have provided information of a normal execution of my function. When the problem occurs, there is actually nothing in the logs that would indicate this problem because the function doesn't run.

• Timestamp: 2018-06-18 00:21:46.689
• Function App version (1.0 or 2.0-beta): 2.0-beta
• Function App name:
• Function name(s) (as appropriate):
• Invocation ID: 3ddcfae6-b61a-446d-90c4-0b9bba7fc5e3
• Region: North Europe

Repro steps

1. Create an Azure Function that takes in GET argument(s) using the beta version of the CLI (2.1, in my case)
2. Call the function from any other source, passing arguments of altogether over 2048 characters

Expected behavior

Function should execute.

Actual behavior

Function doesn't execute.

You'll get back an error "The resource you are looking for has been removed, had its name changed, or is temporarily unavailable."

Even if you attach the remote debugger to your Azure Function, it won't fire, at all - so debugging is kind of difficult!

Known workarounds

Use the request body instead of query-params, or use shorther arguments.

Related information

I'm using C# to develop the function.

[pragnagopa]

We should show proper error message when hitting requestlimits