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Android™

Add a Path Substitution Parameter to a REST Request

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Demonstrates Rest.AddPathParam, which adds or replaces a path-substitution parameter. Before a request is sent, each occurrence of the name in the URI path is replaced with its value.

Background. Path parameters keep a URI path template readable—placeholders such as {userId} are substituted with concrete values just before the request is sent.

Chilkat Android™ Downloads

Android™
// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    CkRest rest = new CkRest();

    //  Connect to the REST server.  The 3rd argument enables TLS (use true for HTTPS on port 443),
    //  and the 4th enables automatic reconnection if the connection is dropped between requests.
    boolean bTls = true;
    boolean bAutoReconnect = true;
    success = rest.Connect("example.com",443,bTls,bAutoReconnect);
    if (success == false) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    //  Add path-substitution parameters.  Before a request is sent, each occurrence of the name in the
    //  URI path is replaced with the value.  This keeps the path template readable.
    rest.AddPathParam("{userId}","12345");
    rest.AddPathParam("{orderId}","98765");

    //  The placeholders in the path are replaced before the request is sent.
    String responseText = rest.fullRequestNoBody("GET","/users/{userId}/orders/{orderId}");
    if (rest.get_LastMethodSuccess() == false) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    Log.i(TAG, responseText);

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}