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(Android™) ShippingEasy.com Calculate Signature for API Authentication

Demonstrates how to calculate the shippingeasy.com API signature for authenticating requests.

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

    // 
    // First, concatenate these into a plaintext string using the following order:
    // 
    //     Capitilized method of the request. E.g. "POST"
    //     The URI path
    //     The query parameters sorted alphabetically and concatenated together into a URL friendly format: param1=ABC&param2=XYZ
    //     The request body as a string if one exists
    //     All parts are then concatenated together with an ampersand. The result resembles something like this:
    // 
    // "POST&/partners/api/accounts&api_key=f9a7c8ebdfd34beaf260d9b0296c7059&api_timestamp=1401803554&{ ... request body ... }"

    boolean success;
    CkStringBuilder sbStringToSign = new CkStringBuilder();

    String httpVerb = "POST";
    String uriPath = "/partners/api/accounts";
    String queryParamsStr = "api_key=YOUR_API_KEY&api_timestamp=UNIX_EPOCH_TIMESTAMP";

    // Build the following JSON that will be the body of the request:

    // {
    //   "account": {
    //     "first_name": "Coralie",
    //     "last_name": "Waelchi",
    //     "company_name": "Hegmann, Cremin and Bradtke",
    //     "email": "se_greg_6d477b1e59e8ff24abadfb59d3a2de3e@shippingeasy.com",
    //     "phone_number": "1-381-014-3358",
    //     "address": "2476 Flo Inlet",
    //     "address2": "",
    //     "state": "SC",
    //     "city": "North Dennis",
    //     "postal_code": "29805",
    //     "country": "USA",
    //     "password": "abc123",
    //     "subscription_plan_code": "starter"
    //   }
    // }

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("account.first_name","Coralie");
    json.UpdateString("account.last_name","Waelchi");
    json.UpdateString("account.company_name","Hegmann, Cremin and Bradtke");
    json.UpdateString("account.email","se_greg_6d477b1e59e8ff24abadfb59d3a2de3e@shippingeasy.com");
    json.UpdateString("account.phone_number","1-381-014-3358");
    json.UpdateString("account.address","2476 Flo Inlet");
    json.UpdateString("account.address2","");
    json.UpdateString("account.state","SC");
    json.UpdateString("account.city","North Dennis");
    json.UpdateString("account.postal_code","29805");
    json.UpdateString("account.country","USA");
    json.UpdateString("account.password","abc123");
    json.UpdateString("account.subscription_plan_code","starter");

    json.put_EmitCompact(false);
    Log.i(TAG, json.emit());

    // First, let's get the current date/time in the Unix Epoch Timestamp format (which is just an integer)
    CkDateTime dt = new CkDateTime();
    dt.SetFromCurrentSystemTime();
    // Get the UTC time.
    boolean bLocalTime = false;
    String unixEpochTimestamp = dt.getAsUnixTimeStr(bLocalTime);

    // Build the string to sign:
    sbStringToSign.Append(httpVerb);
    sbStringToSign.Append("&");
    sbStringToSign.Append(uriPath);
    sbStringToSign.Append("&");
    sbStringToSign.Append(queryParamsStr);
    sbStringToSign.Append("&");
    // Make sure to send the JSON body of a request in compact form..
    json.put_EmitCompact(true);
    sbStringToSign.Append(json.emit());

    // Use your API key here:
    String your_api_key = "f9a7c8ebdfd34beaf260d9b0296c7059";

    int numReplaced = sbStringToSign.Replace("YOUR_API_KEY",your_api_key);
    numReplaced = sbStringToSign.Replace("UNIX_EPOCH_TIMESTAMP",unixEpochTimestamp);

    // Do the HMAC-SHA256 with your API secret:
    String your_api_secret = "ea210785fa4656af03c2e4ffcc2e7b5fc19f1fba577d137905cc97e74e1df53d";
    CkCrypt2 crypt = new CkCrypt2();
    crypt.put_MacAlgorithm("hmac");
    crypt.put_EncodingMode("hexlower");
    crypt.SetMacKeyString(your_api_secret);
    crypt.put_HashAlgorithm("sha256");

    String api_signature = crypt.macStringENC(sbStringToSign.getAsString());
    Log.i(TAG, "api_signature: " + api_signature);

    // --------------------------------------------------------------------
    // Here's an example showing how to use the signature in a request:

    // Build a new string-to-sign and create a new api_signature for the actual request we'll be sending...
    sbStringToSign.Clear();
    sbStringToSign.Append("GET");
    sbStringToSign.Append("&");
    sbStringToSign.Append("/app.shippingeasy.com/api/orders");
    sbStringToSign.Append("&");
    sbStringToSign.Append(queryParamsStr);
    sbStringToSign.Append("&");
    // There is no body for a GET request.

    api_signature = crypt.macStringENC(sbStringToSign.getAsString());

    CkHttp http = new CkHttp();
    CkJsonObject queryParams = new CkJsonObject();

    queryParams.UpdateString("api_signature",api_signature);
    queryParams.UpdateString("api_timestamp",unixEpochTimestamp);
    queryParams.UpdateString("api_key",your_api_key);

    CkHttpResponse resp = http.QuickRequestParams("GET","https://app.shippingeasy.com/api/orders",queryParams);
    if (http.get_LastMethodSuccess() == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    Log.i(TAG, "response status code = " + String.valueOf(resp.get_StatusCode()));
    Log.i(TAG, "response body:");
    Log.i(TAG, resp.bodyStr());


  }

  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."
  }
}

 

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