SMPPEX.Pdu.optional_field

You're seeing just the function optional_field, go back to SMPPEX.Pdu module for more information.

optional_field(pdu, id)

Specs

optional_field(t(), integer() | atom()) :: any()

Get Pdu optional(TLV) field by name or by integer id. If Pdu does not have the field or field name is unknown, nil is returned.

Examples

iex(1)> pdu = SMPPEX.Pdu.new(4, %{}, %{0x0424 => "hello"})
iex(2)> SMPPEX.Pdu.optional_field(pdu, :message_payload)
"hello"
iex(3)> SMPPEX.Pdu.optional_field(pdu, 0x0424)
"hello"
iex(4)> SMPPEX.Pdu.optional_field(pdu, :receipted_message_id)
nil
iex(5)> SMPPEX.Pdu.optional_field(pdu, :unknown_tlv_name)
nil