Java

Refinitiv World-Check One - Get Top Level Groups

See more Refinitiv Examples

Sends a signed GET request to get the top level groups.

Note: This example requires Chilkat v9.5.0.89 or later.

Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkJsonObject json = new CkJsonObject();

    // Create the following JSON:
    // 
    // {
    //   "keyId": "aaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
    //   "hmacKey": "xxxxzI3vi58xxxCBxxx1+P/d8tGxx7KuLqN/KMPNxxxxekhj8/bx83+1YQSUxxxxYyv939ceY06GvhYRKmxxxx==",
    //   "algorithm": "hmac-sha256",
    //   "headers": [
    //     "(request-target)",
    //     "host",
    //     "date"
    //   ]
    // }

    // Substitute your actual API key and API secret in place of "api-key" and "api-secret"
    json.UpdateString("keyId","api-key");
    json.UpdateString("hmacKey","api-secret");
    json.UpdateString("algorithm","hmac-sha256");
    // Indicate the names of the headers to be included in the signature.
    // "(request-target)" is not actually a header name, but is a special name for HTTP signatures.
    // Copy the following three lines of code exactly as-is.  
    // Do not replace "host", "date", or "(request-target)" with values.
    json.UpdateString("headers[0]","(request-target)");
    json.UpdateString("headers[1]","host");
    json.UpdateString("headers[2]","date");

    CkHttp http = new CkHttp();

    // Setting the AuthSignature property causes the following header to be computed and added:
    // Authorization: Signature keyId="...", algorithm="hmac-sha256", headers="(request-target) host date", signature="..."
    http.put_AuthSignature(json.emit());

    http.SetRequestHeader("Cache-Control","no-cache");

    // Chilkat will auto-add the Date header because it's needed by the HTTP Signature.

    String responseJson = http.quickGetStr("https://api-worldcheck.refinitiv.com/v2/groups");
    if (http.get_LastMethodSuccess() == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    System.out.println(responseJson);
    System.out.println("----");
    // A 200 status code indicates success.
    System.out.println("Status code = " + http.get_LastStatus());

    // Successful JSON looks like this:
    // [ 
    //   {
    //   "id": "...",
    //   "name": "Company Name",
    //   "parentId": null,
    //   "hasChildren": false,
    //   "status": "ACTIVE",
    //   "children": []
    //   }
    // ]

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    CkJsonArray jarr = new CkJsonArray();

    success = jarr.Load(responseJson);

    CkJsonObject jsonObj;
    String id;
    String name;
    String parentId;
    boolean hasChildren;
    String status;
    int j;
    int count_j;

    int i = 0;
    int count_i = jarr.get_Size();
    while (i < count_i) {
        jsonObj = jarr.ObjectAt(i);
        id = jsonObj.stringOf("id");
        name = jsonObj.stringOf("name");
        parentId = jsonObj.stringOf("parentId");
        hasChildren = jsonObj.BoolOf("hasChildren");
        status = jsonObj.stringOf("status");
        j = 0;
        count_j = jsonObj.SizeOfArray("children");
        while (j < count_j) {
            jsonObj.put_J(j);
            j = j+1;
            }

        i = i+1;
        }
  }
}