gistfile1.txt

      /{module:graphoid}:
        x-modules:
          - name: simple_service
            version: 1.0.0
            type: file
            options:
              paths:
                # Do we need those parameters??
                /v1/png:
                  post:
                    on_setup:
                      - setup_post_storage:
                         method: put
                         uri: /{domain}/sys/key_value/graphoid.post
                      - setup_png_storage:
                          method: put
                          uri: /{domain}/sys/key_value/graphoid.png
                    on_request:
                      # Don't know how to make posts to graphoid correctly and which data to post there
                      # -- Graphoid service needs the domain, format (png/svg), and the json blob. It will return a PNG/SVG
                      - graphoid_request:
                          request:
                # post or put? what's the difference here
                            method: post
                            uri: http://graphoid.wikimedia.org/{domain}/v1/png
                            body: '{$.request.body}'
                # Should there be a '-' here?
                        save_post_request:
                          request:
                            method: put
                            # TODO URI substitution like this is not supported!!
                            uri: /{domain}/sys/key_value/graphoid.post/{$.request.hash}
                            body: '{$.request}'
                      - store_result:
                          request:
                            method: put
                            # TODO URI substitution like this is not supported!!
                            uri: /{domain}/sys/key_value/graphoid.png/{$.request.hash}
                            body: '{$.graphoid_request.body}'
                      - return_result:
                          return:
                            status: '{$.graphoid_request.status}'
                            headers:
                              # Which header are we going to use?
                              location-hash: '$.request.hash'
                            body: '{$.graphoid_request.body}'

                /v1/png/{hash}:
                  get:
                    on_request:
                      - get_from_storage:
                          request:
                            uri: /{domain}/sys/key_value/graphoid.png/{hash}
                          return_if:
                            status: 200
                          catch:
                            status: 404
                      - load_post:
                          request:
                            uri: /{domain}/sys/key_value/graphoid.post/{hash}
                      - request_again:
                          request:
                            method: post
                            uri: /v1/png:
                            headers: '{$.load_post.headers}'
                            body: '{$.load_post.body}'

line 23 - now idea, it's a request to graphoid, I don't know what does it require
line 27 - absence of '-' represents parallel request - we can go to graphed and save post request concurrently