HTTPBuilder encoding utf-8 in Grails - grails

Question

I have a problem using HTTPBuilder in Grails.
The code is something like this.
def http = new HTTPBuilder("theURL")
http.request(method, ContentType.JSON) {
uri.path = "theURI"
headers.'Authorization' = "OAuth $accessToken"
headers.'Accept' = "application/json"
headers.'content-type' = "application/json;charset=utf-8"
response.success = { resp, json ->
result = json
}
}
return result
Now the response is a JSON with "Cobro N�� 1234" but i need "Cobro Nº 1234"
I tried this with curl and the response is fine "Cobro Nº 1234", this made me think that the problem is the HTTPBuilder and not my API who response the request.
I think that it is a problem with the response encoding.

Answer 1

http.encoders.charset = Charsets.UTF_8

Answer 2

Try this:
headers.'content-type' = "application/JSON;charset=UTF-8" //capitalized
Either, try this:
#Produces(MediaType.APPLICATION_JSON + ";charset=utf-8")

Answer 3

Try adding this after your 'http' declaration:
http.encoderRegistry = new EncoderRegistry( charset: 'utf-8' )

Answer 4

I couldn't follow if the content you are sending needs to be encoded with UTF-8, or if the content you are receiving needs to be read with UTF-8.
I was having a problem sending content with UTF-8, and this is what I did.
http.request(Method.PUT) { request ->
// set headers here
request.entity = new StringEntity(json.toString(), "UTF-8")
}
I'm converting a net.sf.json.JSONObject to a String in order to pass it along as the body of the PUT call. I'm using StringEntity, and previously I wasn't setting the encoding on the StringEntity, but there is a constructor that takes an encoding. Now that I'm setting "UTF-8" there, it is working.