generateSTKPushUrl method
Implementation
Uri generateSTKPushUrl() {
///Nothing much, merges the uri parts to produce one uri that would be used
///to process the actual request.
///Note that baseUrl is now instantiated with the call, instead of sending
///it as a param with the body, this made it easier to use in generating auth
///token before placing the request.
Uri uri = new Uri(
scheme: 'https',
host: baseUrl,
path: 'mpesa/stkpush/v1/processrequest');
return uri;
}