pathvars and body in store + multiple actions => weird behaviour

Start by tracing the reducer handling multiple actions with the same reducerName, including the request-error path described in the examples. Compare how pathvars, body, and existing content are updated for successful and failed requests. Done means the intended state behavior is defined and consistently covered for actions with and without path variables.

This issue is related to #152, that have been merged in version 0.10.7

If several actions are bound to the same reducer (with the reducerName option), the pathvars and body will contain the latest action done on it. That might not be the expected behaviour.

Example :

const rest = reduxApi({
  getUser: {
    reducerName: "user"
    url: "/user/:id", // return a user object
  },
  updateUser: {
    reducerName: "user"
    url: "/user/:id/update", 
    options: {
      method: "post"
    },
    transformer: function(data, prevData, action) {
      /* update the store content based on the data received */
    }
  }
});

/* ... */

dispatch(rest.actions.getUser({id:1})); 
// store will contain { pathvars: {id:1}, body: {} }

dispatch(rest.actions.updateUser({ id:1 }, {
  body: {message: 'hello world'}
}));
// store will contain { pathvars: {id:1}, body: {message: 'hello world'} }

The content of body is kinda weird : the store still contains the results of the first call, with the update.
It would make sense that the body stays empty.

This gets even worse with a poorly coded API, where updateUser does not contain any pathvar :

const rest = reduxApi({
  getUser: {
    reducerName: "user"
    url: "/user/:id", // return a user object
  },
  updateUser: {
    reducerName: "user"
    url: "/user/update", 
    options: {
      method: "post"
    },
    transformer: function(data, prevData, action) {
      /* update the store content based on the data received */
    }
  }
});

/* ... */

dispatch(rest.actions.getUser({id:1})); 
// store will contain { pathvars: {id:1}, body: {} }

dispatch(rest.actions.updateUser({ id:1 }, {
  body: {user_id:1, message: 'hello world'}
}));
// store will contain { pathvars: {}, body: {user_id:1, message: 'hello world'} }

This can also be a problem when the request gives an error : pathvars and body will change, but not the content.

How should we handle such cases ?