This package seeks to help C# developers implement the various MPESA APIs without much Challenge. It is based on the REST API whose documentation is available on https://developer.safaricom.co.ke.

1. Supports HTTP request
2. Support HTTP response

Microsoft .NET Framework 4.6.2 or higher, Microsoft Visual C++ 2017 Redistributable (x86). It is yet to be tested with lower versions of the above.

1. Create a Webrequest instance by calling Create with the URI of the resource.

   String a = "https://sandbox.safaricom.co.ke/oauth/v1/generate?grant_type=client_credentials";
   String baseUrl = a;
   HttpWebRequest request = (HttpWebRequest)WebRequest.Create(baseUrl);

The .NET Framework provides protocol-specific classes derived from WebRequest and WebResponse for URIs that begin with "http:" or "https:'' To access resources using other protocols, you must implement protocol-specific classes that derive from WebRequest and WebResponse.

2. Set any property values that you need in the WebRequest. For example,

• to enable authentication,

String token = "ACCESS_TOKEN";
request.Headers.Add("authorization", "Bearer " + token);

• Set the method to be used mostly GET or POST.

In daraja .When generating the access token the GET method is used while the POST is used with almost the rest of the other APIs.

request.Method = "POST"; or request.Method = "GET";

• To set the content type to be used in daraja json is used.

request.ContentType = "application/json";

Generate the API Body depending on the Api parameter requirements eg for b2c we will use :

string json =   "{\"InitiatorName\":\" here\"," +
                 "\"SecurityCredential\":\" here \"," +
                 "\"CommandID\":\" here \"," +
                 "\"Amount\":\" here \"," +
                 "\"PartyA\":\" here \"," +
                 "\"PartyB\":\" here \"," +
                 "\"Remarks\":\" here \"," +
                 "\"QueueTimeOutURL\":\"http:https://your_timeout_url\"," +
                 "\"ResultURL\":\"http:https://your_result_url\"," +
                 "\"Occasion\":\" here \"}";

Replace “here ” with actual data ,avoid leaving spaces before and after inserting the actual data.

Write the json string to a Stream which will be sent along with your request.

using (var streamWriter = new StreamWriter(request.GetRequestStream()))
{
//the string (json) should be here
streamWriter.Write(json);
streamWriter.Flush();
streamWriter.Close();
}

3. Call GetResponse . The actual type of the returned WebResponse object is determined by the scheme of the requested URI.

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

Note

After you are finished with a WebResponse object, you must close it by calling the Close method.

response.Close();

Alternatively, if you have gotten the response stream from the response object, you can close the stream by calling the Stream.close method. If you do not close either the response or the stream, your application can run out of connections to the server and become unable to process additional requests.

4. To get the stream containing response data sent by the server, use the GetResponseStream method of the WebResponse.

Stream receiveStream = response.GetResponseStream();

After reading the data from the response, you must either close the response stream using the Stream. Close readStream.Close(); method or close the response using the WebResponse.Close method response.Close();. It is not necessary to call the Close method on both the response stream and the WebResponse, but doing so is not harmful

How to use ?

1. Insert data to the API request body as stated above example.
2. Insert the actual token to "ACCESS_TOKEN";
3. Use your application consumer key for this field "YOUR_APP_CONSUMER_KEY"
4. Use your application consumer secret for this field "YOUR_APP_CONSUMER_SECRET".

Development

1. Visual Studio 2017 & .NET Framework 4.6.2 are required.