There are several GUI applications that can be used to load gRPC interface definition files (*.proto) and execute requests, e.g. BloomRPC, see https://github.com/uw-labs/bloomrpc.

This allows you to test the API without having to generate and integrate the client code.

You can find a selection of similar tools here: https://github.com/grpc-ecosystem/awesome-grpc#tools-gui

You can find various tools on the Internet for converting Unix timestamps in the various requests and responses. An example is "Current Millis" for the conversion of milliseconds, see https://currentmillis.com.

Note
	All these tools are freely available as open source software and are not the intellectual property of iba AG. They are subject to change without prior notice. Function and availability are not guaranteed by iba AG.