vweb: add json_raw

vlib/vweb/tests/vweb_test.v

@@ -162,6 +162,12 @@ fn test_http_client_json_post() {
 	assert '${ouser}' == '${nuser2}'
 }
 
+fn test_http_client_json_raw_get() {
+	mut res := http.get('http://${localserver}/json_raw') or { panic(err) }
+	assert res.header.get(.content_type)! == 'application/json'
+	assert res.body == '{"foo": "bar"}'
+}
+
 fn test_http_client_multipart_form_data() {
 	mut form_config := http.PostMultipartFormConfig{
 		form: {

vlib/vweb/tests/vweb_test_server/server.v

@@ -129,6 +129,12 @@ pub fn (mut app App) json() vweb.Result {
 	return app.ok(app.req.data)
 }
 
+// Make sure [get] works without the path, and works with json_raw
+@['json_raw'; get]
+pub fn (mut app App) raw_json() vweb.Result {
+	return app.json_raw('{"foo": "bar"}')
+}
+
 // Custom 404 page
 pub fn (mut app App) not_found() vweb.Result {
 	linfo('>>>>> ${@LOCATION}')

vlib/vweb/vweb.v

@@ -264,6 +264,12 @@ pub fn (mut ctx Context) text(s string) Result {
 	return Result{}
 }
 
+// Response with content as payload and content-type `application/json`
+pub fn (mut ctx Context) json_raw(content string) Result {
+	ctx.send_response_to_client('application/json', content)
+	return Result{}
+}
+
 // Response with json_s as payload and content-type `application/json`
 pub fn (mut ctx Context) json[T](j T) Result {
 	json_s := json.encode(j)