dolphin278 / fsm-http Goto Github PK

Support passing request data when attempting to make a transition (see dolphin278/fsm#2 for more details).

When performing HTTP request for state transition, send fsm's data field as request body (request json or body field).

If request field of edge object also contains body or json fields, mix fsm's data field with these values, giving priority to fsm data members over edge object request field members.

Tricky question is what should we do when HTTP endpoint returned HTTP status code 200, but there was an error on parsing endpoint response.

Using node-fsm event state, support same similar request field on machine states to notify external systems as we do it for state transitions.

These notification does not affect machine state — so whether we received HTTP status code 200, or not, machine state will not change.

Our fsm stores arbitrary data using data field. When we receive JSON response on state transition callback, update fsm's data field with received data.

After #2 will be resolved, there is need to support limits on how much data could be transfered back and forth on state change requests — large request could stuck application and could be used to abuse server in non-controlled environments (when fsm are provided by third-party).