api payload size based on Content-Type

Google Cloud Apigee
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1

Hi

I am using OPDK 4.52 (on premise version of apigee edge)

I need to set maximum limit payload of an API to 1 MB if the “Content-Type” is “application/json” and 10 MB (Default limit) for all other cases.

What is the best approach?

Any suggestion is welcome.

Regards

Sujith Jacob

2

I can suggest something like this:

<Step>
    <Name>RF-Content-Length-Exceeds-Limit</Name>
    <Condition>(request.header.content-length > 1048576 and request.header.content-type = "application/json") OR 
        (request.header.content-length > 10485760)</Condition>
  </Step>

But that won’t be sufficient, as for large payloads, clients use chunked transfer encoding, which means there is no content-length header. So you would need to also restrict your API from accepting that, as well.