nginx-json-proxy

Ever wanted make sure you're only passing JSON across a boundary? Every thought the best place to do this would be in Lua embedded in nginx? This project is for you.

Usage

You can test out the example by running openresty:

openresty -c `pwd`/config/nginx.conf

Then making requests via curl:

# valid JSON
curl -X POST -d '["bob", "jim"]' http://localhost:3000/
["bob","jim"]

# invalid JSON
curl -X POST -d '["bob", "jim]' http://localhost:3000/
invalid request

Rather than use a real backend the example currently just hard codes the response. If you change the response by commenting line 66 and uncommenting line 67 to return invalid JSON then you should get:

# valid JSON, with invalid JSON response
curl -X POST -d '["bob", "jim"]' http://localhost:3000/
invalid response

Installing OpenResty

brew install openresty
brew install lua51

Installing cjson

wget https://github.com/keplerproject/luarocks/archive/v2.2.2.tar.gz
tar xfv v2.2.2.tar.gz
cd luarocks-2.2.2
./configure
make build
make install
luarocks install lua-cjson

Thanks

Thanks to Tommy Hall and his nginx-lua-examples for the Rakefile and Procfile which made getting started easier.