Status 422 (RFC 4918, Section 11.2) comes to mind: The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415(Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was … Read more
The following code works for me. //escape the double quotes in json string String payload=”{\”jsonrpc\”:\”2.0\”,\”method\”:\”changeDetail\”,\”params\”:[{\”id\”:11376}],\”id\”:2}”; String requestUrl=”https://git.eclipse.org/r/gerrit/rpc/ChangeDetailService”; sendPostRequest(requestUrl, payload); method implementation: public static String sendPostRequest(String requestUrl, String payload) { try { URL url = new URL(requestUrl); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setDoInput(true); connection.setDoOutput(true); connection.setRequestMethod(“POST”); connection.setRequestProperty(“Accept”, “application/json”); connection.setRequestProperty(“Content-Type”, “application/json; charset=UTF-8”); OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream(), “UTF-8”); … Read more
Finally, I got the mistake and the reason was I need to stringify the JSON data I was sending. I have to set the content type and datatype in XHR object. So the correct version is here: $.ajax({ type: ‘POST’, url: “http://localhost:8080/project/server/rest/subjects”, data: JSON.stringify({ “subject:title”:”Test Name”, “subject:description”:”Creating test subject to check POST method API”, “sub:tags”: … Read more
No, it’s very incorrect to send 200 with a error body HTTP is an application protocol. 200 implies that the response contains a payload that represents the status of the requested resource. An error message usually is not a representation of that resource. If something goes wrong while processing GET, the right status code is … Read more
A 400 means that the request was malformed. In other words, the data stream sent by the client to the server didn’t follow the rules. In the case of a REST API with a JSON payload, 400’s are typically, and correctly I would say, used to indicate that the JSON is invalid in some way … Read more