How to capture HTTP2 packages using Wireshark

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gRPC is based on HTTP/2. So we have to analyze packages to solve some difficult problems related to the protocol. This wiki introduces how to do this using Wireshark because capturing packages of HTTP/2 is a little different with HTTP/TCP.

HTTP/2 via TLS is not covered in this wiki

Download Wireshark of recent versions.
Add your port to HTTP protocols:
Open Preferences
Select Protocols>HTTP. HTTP2 works too, but HTTP is enough
Add your HTTP/2 port like(50051) to TCP ports
Click OK to save the config
Select(Double click) your network interfaces like Loopback: lo0(local)
Input http2 in the filter
Run your gRPC applications
Stop(Capture>Stop). Then you can analyze the packages or save to a file for using later.