Convenient .NET client for IT-Decision Telecom messaging API.

• Sign up for a free IT-Decision Telecom account
• Request login and password to send SMS messages and access key to send Viber messages
• IT-Decision Telecom client for C# requires .NET Framework >= 4 or .NET Standard >= 2.0

IT-Decision Telecom C# client could be added to your project as a DecisionTelecom Nuget package. For more information on how to install Nuget package, see Official documentation.

We have put some self-explanatory usage examples in the DecisionTelecom.Examples project, but here is a quick reference on how IT-Decision Telecom clients work. First, you need to create a required client. Be sure to use real login, password and access key.

using DecisionTelecom;

SmsClient smsClient = new SmsClient("<YOUR_LOGIN>", "<YOUR_PASSWORD>");
ViberClient viberClient = new ViberClient("<YOUR_ACCESS_KEY>");
ViberPlusSmsClient viberPlusSmsClient = new ViberPlusSmsClient("<YOUR_ACCESS_KEY>");

Now you can use created clients to perform some operations. For example, this is how you can get your SMS balance:

// Get your SMS balance
var balanceResult = await smsClient.GetBalanceAsync()

Please see other examples in the DecisionTelecom.Examples project for a complete overview of all available SDK calls.

All client methods return special Result object, which has flags to determine whether the operation was executed successfully or not. If operation was successful, Value property contains the result of the operation. Otherwise, if operation was not successful (if error appeared during the operation execution), Error property contains the corresponding error.

See provided examples on how to process Result object returned by the client methods.

SmsClient methods return errors in form of the error code. Here are all possible error codes:

• 40 - Invalid number
• 41 - Incorrect sender
• 42 - Invalid message ID
• 43 - Incorrect JSON
• 44 - Invalid login or password
• 45 - User locked
• 46 - Empty text
• 47 - Empty login
• 48 - Empty password
• 49 - Not enough money to send a message
• 50 - Authentication error
• 51 - Invalid phone number

ViberClient and ViberPlusSmsClient methods return errors in form of a class with the Name, Message, Code and Status properties.

If underlying API request returns unsuccessful status code (like 401 Unauthorized), then client methods will return error with only Name and Status properties set:

{
  "name": "Unauthorized",
  "status": 401
}

Known Viber errors are:

{
  "name": "Too Many Requests",
  "message": " Rate limit exceeded",
  "code": 0,
  "status": 429
}

{
  "name": "Invalid Parameter: [param_name]",
  "message": "Empty parameter or parameter validation error",
  "code": 1,
  "status": 400
}

{
  "name": "Internal server error",
  "message": "The server encountered an unexpected condition which prevented it from fulfilling the request",
  "code": 2,
  "status": 500
}

{
  "name": "Topup balance is required",
  "message": "User balance is empty",
  "code": 3,
  "status": 402
}