breez_sdk_liquid::lightning_with_bolt12::offers

Module invoice_request

Expand description

Data structures and encoding for invoice_request messages.

An InvoiceRequest can be built from a parsed Offer as an “offer to be paid”. It is typically constructed by a customer and sent to the merchant who had published the corresponding offer. The recipient of the request responds with a Bolt12Invoice.

For an “offer for money” (e.g., refund, ATM withdrawal), where an offer doesn’t exist as a precursor, see Refund.

extern crate bitcoin;
extern crate lightning;

use bitcoin::network::Network;
use bitcoin::secp256k1::{Keypair, PublicKey, Secp256k1, SecretKey};
use lightning::ln::channelmanager::PaymentId;
use lightning::ln::inbound_payment::ExpandedKey;
use lightning::types::features::OfferFeatures;
use lightning::offers::invoice_request::UnsignedInvoiceRequest;
use lightning::offers::offer::Offer;
use lightning::util::ser::Writeable;

let expanded_key = ExpandedKey::new([42; 32]);
let secp_ctx = Secp256k1::new();
let payment_id = PaymentId([1; 32]);
let mut buffer = Vec::new();

"lno1qcp4256ypq"
    .parse::<Offer>()?
    .request_invoice(&expanded_key, nonce, &secp_ctx, payment_id)?
    .chain(Network::Testnet)?
    .amount_msats(1000)?
    .quantity(5)?
    .payer_note("foo".to_string())
    .build_and_sign()?
    .write(&mut buffer)
    .unwrap();

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