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Plugins
prestd is an extensible software via plugins (OpenCore model), we use standard operating system library for new functionality.
It is possible to create custom endpoints and middleware by writing an operating system library (
.so) and prestd can load it when starting the server (api).We use the plugin system of the Go language to load the lib, unfortunately it doesn't work well with Microsoft Windows yet - if you are working with prestd on Windows the plugin endpoint will not exist.
When starting the prestd server and there is a plugin in the
./lib folder they are automatically compiled and loaded when accessing their respective endpoint for the first time.Change where the libraries will be:
PREST_PLUGINPATH is the name of the environment variable that has this purpose, by default it comes with the value ./lib.or via
toml:pluginpath = ./lib
- Endpoint
- Middleware
In the first version of the prestd plugin system we are working with Go code.
This doesn't mean that prestd doesn't read plugins (library.so) written in other technologies (e.g. c, cpp, rust, java and ...). The automatic constructor is designed to work with Go code, in the future we will write for other technologies.