README
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jsonp A small library for allowing JSONp requests
Go (golang) routines for supporting JSONp.
The primary interface is:
func JsonP(s string, res http.ResponseWriter, req *http.Request) string
This allows converting a return string in JSON to a JSONp callback. If the parameter on the url "callback" is supplied then the returned string is wrapped in the callback name.
An example handler using this is:
func handleVersion(res http.ResponseWriter, req *http.Request) {
res.Header().Set("Content-Type", "application/json")
io.WriteString(res, jsonp.JsonP(fmt.Sprintf(`{"status":"success", "version":"1.0.0"}`+"\n"), res, req))
}
If you already have the parameters parsed then you can pass the value for callback to JsonP_Param and
save parsing the URL again.
func handleVersion(res http.ResponseWriter, req *http.Request) {
res.Header().Set("Content-Type", "application/json")
callback := r.URL.Query()["callback"][0];
io.WriteString(res, jsonp.JsonP_Param(fmt.Sprintf(`{"status":"success", "version":"1.0.0"}`+"\n",callback), res, req))
}
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
var JSON_Prefix string = ""
Functions ¶
func JsonP ¶
Take a string 's' in JSON and if a get parameter "callback" is specified then format this for JSONP callback. If it is not a JSONp call (no "callback" parameter) then add JSON_Prefix to the beginning.
func JsonP_Param ¶
func JsonP_Param(s string, res http.ResponseWriter, callback string) string
If "callback" is not "" then convert the JSON string 's' to a JSONp callback. If it is not a JSONp call (no "callback" parameter) then add JSON_Prefix to the beginning.
func PrependPrefix ¶
For non-JSONP callable - just prepend the prefix and return.
func SetJsonPrefix ¶
func SetJsonPrefix(p string)
Set a prefix that will be pre-pended to every return JSON string.
Types ¶
This section is empty.
Source Files