(Android™) Banco Inter OAuth2 Client Credentials

Generate an OAuth2 access token needed to consume the Inter APIs.

For more information, see https://developers.bancointer.com.br/reference/token-3

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// 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);

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

    CkHttp http = new CkHttp();
    boolean success;

    // First load the certificate and private key, and set as the HTTP object's client certificate.
    CkCert cert = new CkCert();
    success = cert.LoadFromFile("<nome arquivo certificado>.crt");
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    CkBinData bdPrivKey = new CkBinData();
    success = bdPrivKey.LoadFile("<nome arquivo chave privada>.key");
    if (success == false) {
        Log.i(TAG, "Failed to load <nome");
        return;
        }

    CkPrivateKey privKey = new CkPrivateKey();
    success = privKey.LoadAnyFormat(bdPrivKey,"");
    if (success == false) {
        Log.i(TAG, privKey.lastErrorText());
        return;
        }

    success = cert.SetPrivateKey(privKey);
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    success = http.SetSslClientCert(cert);
    if (success == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    CkHttpRequest req = new CkHttpRequest();
    req.put_HttpVerb("POST");
    req.put_Path("/oauth/v2/token");
    req.put_ContentType("application/x-www-form-urlencoded");
    req.AddParam("grant_type","client_credentials");
    // Requested scopes in OAuth2 are typically SPACE separated.
    req.AddParam("scope","boleto-cobranca.read boleto-cobranca.write");
    req.AddHeader("accept","application/json");

    CkHttpResponse resp = http.PostUrlEncoded("https://cdpj.partners.bancointer.com.br/oauth/v2/token",req);
    if (http.get_LastMethodSuccess() == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    CkJsonObject jResp = new CkJsonObject();
    resp.GetBodyJson(jResp);
    jResp.put_EmitCompact(false);

    Log.i(TAG, "Response Body:");
    Log.i(TAG, jResp.emit());

    int respStatusCode = resp.get_StatusCode();
    Log.i(TAG, "Response Status Code = " + String.valueOf(respStatusCode));
    if (respStatusCode >= 400) {
        Log.i(TAG, "Response Header:");
        Log.i(TAG, resp.header());
        Log.i(TAG, "Failed.");

        return;
        }

    success = jResp.WriteFile("qa_data/tokens/banco_inter_client_credentials.json");
    if (success == false) {
        Log.i(TAG, "Failed to save JSON access token file.");
        return;
        }

    Log.i(TAG, "Success.");

  }

  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."
  }
}