Struct Invoice 

pub struct Invoice {
    pub _title: String,
    pub _description: String,
    pub _start_parameter: String,
    pub _currency: String,
    pub _total_amount: i32,
}

This object contains basic information about an invoice.

Fields

_title: String

Product name

_description: String

Product description

_start_parameter: String

Unique bot deep-linking parameter that can be used to generate this invoice

_currency: String

Three-letter ISO 4217 currency code

_total_amount: i32

Total price in the smallest units of the currency (integer, not float/double). For example, for a price of US$ 1.45 pass amount = 145. See the exp parameter in currencies.json, it shows the number of digits past the decimal point for each currency (2 for the majority of currencies).