Groovy rest client without libraries - rest

Question

I am using a rest client to do Post
My code is
def postRequest() {
def message = "{ \"fields\": { \"project\": { \"id\": \"001\" },\"summary\": \"Test Issue For Jira Integration\",\"description\": \"Creating of an issue for for projects and issue types using the REST API\", \"issuetype\": { \"id\": \"5\" } }}"
// POST
def post = new URL("https://jira/rest/api/latest/issue").openConnection();
//def message = '{"message":"this is a message"}'
post.setRequestMethod("POST")
String userpass = "user:pass" ;
String basicAuth = "Basic " + new String(Base64.getEncoder().encode(userpass.getBytes()));
post.setRequestProperty ("Authorization", basicAuth);
post.setDoOutput(true)
post.setRequestProperty("Content-Type", "application/json")
post.getOutputStream().write(message.getBytes("UTF-8"));
def postRC = post.getResponseCode();
println(postRC);
if(postRC.equals(201)) {
println(post.getInputStream().getText());
}else
{
println(post.getInputStream().getText());
print(postRC)
}
}
I am getting 400 error code , where its getting wrong
I am successfully able to do the get request with URL

Answer 1

400 = bad request.
it means server tried to validate your post data and it's wrong.
usually this response contains body with explanation...
for 400+ status codes the body comes through getErrorStream() and not through getInputStream()
So, I would do it like this:
def postRequest(url, message) {
def post = new URL(url).openConnection();
//def message = '{"message":"this is a message"}'
post.setRequestMethod("POST")
String userpass = "user:pass" ;
String basicAuth = "Basic " + userpass.getBytes("UTF-8").encodeBase64()
post.setRequestProperty("Authorization", basicAuth);
post.setRequestProperty("Content-Type", "application/json")
post.setDoOutput(true)
if( !(message instanceof String) )message = new groovy.json.JsonBuilder(message).toPrettyString()
post.getOutputStream().write(message.getBytes("UTF-8"))
def response=[:]
response.code = post.getResponseCode()
response.message = post.getResponseMessage()
if( response.code>=400 ){
try{
response.body = post.getErrorStream()?.getText("UTF-8")
}catch(e){}
}else{
response.body = post.getInputStream()?.getText("UTF-8")
}
assert response.code in [200,201] : "http call failure ${response.code}: ${ response.body ?: response.message }"
return response
}
def msg = [
fields: [
project : [ id: "001" ],
summary : "Test Issue For Jira Integration",
description : "Creating of an issue for for projects and issue types using the REST API",
issuetype : [ id: "5" ]
]
]
def r = postRequest("http://httpbin.org/post", msg)
println r

Answer 2

The issue was related to certificate , I have to bypass the certificate validation and its working fine. Since both the application are under same network and behind same company's firewall , I have bypass the certificate validations.
Adding the skipping certificate validation part to the above code is working for me