Java Requires Chilkat v11.0.0+

Send JSON REST Request, Get JSON Response

See more REST Examples

Demonstrates sending a RESTful JSON request, and receiving a JSON response. This example will create a bucket in Google Cloud Storage (which involves sending and receiving JSON). Chilkat2 Java

import com.chilkatsoft.chilkat2.AuthGoogle;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.Rest;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example will create a bucket in Google Cloud Storage.

        // It requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        AuthGoogle gAuth = new AuthGoogle();
        // Obtain an access token as shown in one of the following examples:
        // See Get Access Token using a Service Account JSON Key
        // See Get Access Token using a P12 File

        Rest rest = new Rest();

        // Connect using TLS.
        boolean bAutoReconnect = true;
        rest.connect("www.googleapis.com", 443, true, bAutoReconnect);

        // Provide the authentication credentials (i.e. the access key)
        rest.setAuthGoogle(gAuth);

        // Build the JSON request body for creating a bucket.
        // The only required property is the "name", but we'll add more
        // to make a better example..
        JsonObject jsonReqBody = new JsonObject();
        jsonReqBody.appendString("name", "chilkat-bucket-c");
        jsonReqBody.appendString("kind", "storage#bucket");
        jsonReqBody.appendString("location", "US");

        JsonObject objVersioning = new JsonObject();
        jsonReqBody.appendObject2("versioning", objVersioning);
        objVersioning.appendBool("enabled", true);

        // Show the HTTP request body we'll be sending.
        System.out.println(jsonReqBody.emit());

        // Add the required query parameter.
        // See https://cloud.google.com/storage/docs/json_api/v1/buckets/insert
        rest.addQueryParam("project", "chilkattest-1050");

        // Add the Content-Type HTTP request header.
        rest.addHeader("Content-Type", "application/json; charset=UTF-8");

        String jsonResponseStr;
        try {
            jsonResponseStr = rest.fullRequestString("POST", "/storage/v1/b", jsonReqBody.emit());
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Show the JSON response.  (See below for a sample JSON response.)
        System.out.println("Json Response: " + jsonResponseStr);

        // {
        //  "kind": "storage#bucket",
        //  "id": "chilkat-bucket-c",
        //  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket-c",
        //  "projectNumber": "999992999999",
        //  "name": "chilkat-bucket-c",
        //  "timeCreated": "2016-04-29T21:08:10.451Z",
        //  "updated": "2016-04-29T21:08:10.451Z",
        //  "metageneration": "1",
        //  "owner": {
        //   "entity": "project-owners-999992999999"
        //  },
        //  "location": "US",
        //  "versioning": {
        //   "enabled": true
        //  },
        //  "storageClass": "STANDARD",
        //  "etag": "CAE="
        // }
        //
    }
}