Support for Params object (include request.body)

[TeemoWan]

Now, All request parameters are collected into a single Params object. That includes:

URL Path parameters
URL Query parameters
Form values (Multipart or not)
File uploads

but request body parameters are not collected into a single Params object. examaple: angluar's json request.

my english is poor, hope you understand,sorry

[brendensoares]

I think I understand what you are asking, but can you link to a reference example? Thanks!

[verdverm]

the Params object gets filled from the Request object in this function:
https://github.com/robfig/revel/blob/master/params.go#L32

the Body field of the Request object is an io.ReadCloser
http://golang.org/pkg/net/http/#Request

this is probably why it is not exposed through the Params object.

You can get to the Body field through
c.Request.Body

you will have to close the ReadCloser once you finished reading from it

[becomingbabyman]

@wanli2011 I ran into same issue with AngularJS and content-type: application/json. If you only need support for the top level key/value pairs in a json object this filter should do the trick.

var JsonParamsFilter = func(c *revel.Controller, fc []revel.Filter) {
    if strings.Contains(c.Request.ContentType, "application/json") {
        data := map[string]string{}
        content, _ := ioutil.ReadAll(c.Request.Body)
        json.Unmarshal(content, &data)
        for k, v := range data {
            c.Params.Values.Set(k, v)
        }
    }
    fc[0](c, fc[1:]) // Execute the next filter stage.
}

Insert it right after the revel.ParamsFilter

revel.ParamsFilter,  // Parse parameters into Controller.Params.
JsonParamsFilter,    // Monkey patch JSON params

[rendon]

@smothers 👍 After a while trying to read some JSON from the request body this line did the trick.

content, _ := ioutil.ReadAll(c.Request.Body)

[notzippy]

JSON is now collected as well