I am happy to announce the first release of nozzle. It is a library for building filters and chaining them into pipelines.
For instance, validating that some raw data is properly encoded a json, then check that certain members are present, then do some logging and then call a function which does the actual work can be expressed as a pipeline, which you build by concatenating functions, mostly.
check_json .. fields_present .. log_stuff .. actual_function
You can build partial pipelines and reuse them:
local pipeline = check_json .. fields_present .. log_stuff
pipeline .. actual_function
pipeline .. other_function
Its homepage is on Github [1]. There you can find more information and source code.
I find this helpful mostly when building validations, composing other libraries like valua [2] or tamale [3]. A more detailed document is available at [4].
Install it with LuaRocks, using:
luarocks install nozzle
The code is MIT licensed and it works with Lua 5.1, 5.2, 5.3 and LuaJIT.
All feedback is welcome!
