@spec format_msisdn(String.t(), String.t()) :: String.t()

Formats MSISDN for Airtel Money API.

Parameters

• msisdn - Phone number string
• country - Country code (e.g., "CD")

Returns

Formatted MSISDN string

Examples

iex> AirtelMoney.Utils.format_msisdn("243900000000", "CD")
"243900000000"

@spec format_msisdn_for_country(String.t(), String.t()) :: String.t()

Formats MSISDN for specific country requirements.

For Kenya (KE), removes leading zero from MSISDN. For other countries, returns cleaned MSISDN.

Parameters

• msisdn - Phone number string
• country - Country code (e.g., "KE", "CD")

Returns

Formatted MSISDN string

Examples

iex> AirtelMoney.Utils.format_msisdn_for_country("0731732829", "KE")
"731732829"

iex> AirtelMoney.Utils.format_msisdn_for_country("243900000000", "CD")
"243900000000"

@spec validate_msisdn(String.t()) :: :ok | {:error, String.t()}

Validates MSISDN format for Airtel Money.

Parameters

• msisdn - Phone number string

Returns

:ok if valid, {:error, reason} if invalid

Examples

iex> AirtelMoney.Utils.validate_msisdn("243900000000")
:ok

iex> AirtelMoney.Utils.validate_msisdn("invalid")
{:error, "Invalid MSISDN format"}