Currently, there is no perfect solution for amf encode/decode in JMeter.
Something you can try:
Find a programmer (good at Java) develop JMeter plugin for amf
encode/decode, according to our experience, it is not hard and our
plugin works fine in the following projects. the plugin should be
able to decode AMF request when you record request by proxy and easy
to customize the parameters within the request.
Use the charles record the amf request, and attach the data package
in JMeter http sampler. it works when the app is not complex.
Use loadrunner or other commercial software if you can afford.
