Grails RestBuilder simple POST example

Question

I\'m trying to do an OAuth2 user-credentials post to an OAuth2 service using the Grails RestBuilder plugin.

If I try to specify the post body as a map, I get an erro

Answer 1

I solved the problem by using a MultiValue map for the body.

RestBuilder rest = new RestBuilder()
MultiValueMap form = new LinkedMultiValueMap()
form.add("grant_type", "password")
form.add("username", username)
form.add("password", password)
def resp = rest.post("http://${hostname}/oauth/token") {
    auth(clientId, clientSecret)
    accept("application/json")
    contentType("application/x-www-form-urlencoded")
    body(form)
}
def json = resp.json