Struct lightning::offers::invoice_request::VerifiedInvoiceRequest

pub struct VerifiedInvoiceRequest {
    pub keys: Option<KeyPair>,
    /* private fields */
}

An InvoiceRequest that has been verified by InvoiceRequest::verify and exposes different ways to respond depending on whether the signing keys were derived.

Fields

keys: Option<KeyPair>

Keys used for signing a Bolt12Invoice if they can be derived.

If Some, must call respond_using_derived_keys when responding. Otherwise, call respond_with.

Implementations

impl VerifiedInvoiceRequest

pub fn chains(&self) -> Vec<ChainHash>

The chains that may be used when paying a requested invoice (e.g., bitcoin mainnet). Payments must be denominated in units of the minimal lightning-payable unit (e.g., msats) for the selected chain.

pub fn metadata(&self) -> Option<&Vec<u8>>

Opaque bytes set by the originator. Useful for authentication and validating fields since it is reflected in invoice_request messages along with all the other fields from the offer.

pub fn amount(&self) -> Option<&Amount>

The minimum amount required for a successful payment of a single item.

pub fn description(&self) -> PrintableString<'_>

A complete description of the purpose of the payment. Intended to be displayed to the user but with the caveat that it has not been verified in any way.

pub fn offer_features(&self) -> &OfferFeatures

Features pertaining to the offer.

pub fn absolute_expiry(&self) -> Option<Duration>

Duration since the Unix epoch when an invoice should no longer be requested.

If None, the offer does not expire.

pub fn issuer(&self) -> Option<PrintableString<'_>>

The issuer of the offer, possibly beginning with user@domain or domain. Intended to be displayed to the user but with the caveat that it has not been verified in any way.

pub fn paths(&self) -> &[BlindedPath]

Paths to the recipient originating from publicly reachable nodes. Blinded paths provide recipient privacy by obfuscating its node id.

pub fn supported_quantity(&self) -> Quantity

The quantity of items supported.

pub fn signing_pubkey(&self) -> PublicKey

The public key used by the recipient to sign invoices.

pub fn payer_metadata(&self) -> &[u8]

An unpredictable series of bytes, typically containing information about the derivation of payer_id.

pub fn chain(&self) -> ChainHash

A chain from Offer::chains that the offer is valid for.

pub fn amount_msats(&self) -> Option<u64>

The amount to pay in msats (i.e., the minimum lightning-payable unit for chain), which must be greater than or equal to Offer::amount, converted if necessary.

pub fn invoice_request_features(&self) -> &InvoiceRequestFeatures

Features pertaining to requesting an invoice.

pub fn quantity(&self) -> Option<u64>

The quantity of the offer’s item conforming to Offer::is_valid_quantity.

pub fn payer_id(&self) -> PublicKey

A possibly transient pubkey used to sign the invoice request.

pub fn payer_note(&self) -> Option<PrintableString<'_>>

A payer-provided note which will be seen by the recipient and reflected back in the invoice response.

pub fn respond_with( &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash ) -> Result<InvoiceBuilder<'_, ExplicitSigningPubkey>, Bolt12SemanticError>

Available on crate feature std only.

Creates an InvoiceBuilder for the request with the given required fields and using the Duration since std::time::SystemTime::UNIX_EPOCH as the creation time.

See InvoiceRequest::respond_with_no_std for further details.

This is not exported to bindings users as builder patterns don’t map outside of move semantics.

pub fn respond_with_no_std( &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash, created_at: Duration ) -> Result<InvoiceBuilder<'_, ExplicitSigningPubkey>, Bolt12SemanticError>

Creates an InvoiceBuilder for the request with the given required fields.

See InvoiceRequest::respond_with_no_std for further details.

This is not exported to bindings users as builder patterns don’t map outside of move semantics.

pub fn respond_using_derived_keys( &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash ) -> Result<InvoiceBuilder<'_, DerivedSigningPubkey>, Bolt12SemanticError>

Available on crate feature std only.

Creates an InvoiceBuilder for the request using the given required fields and that uses derived signing keys from the originating Offer to sign the Bolt12Invoice. Must use the same ExpandedKey as the one used to create the offer.

See InvoiceRequest::respond_with for further details.

This is not exported to bindings users as builder patterns don’t map outside of move semantics.

pub fn respond_using_derived_keys_no_std( &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash, created_at: Duration ) -> Result<InvoiceBuilder<'_, DerivedSigningPubkey>, Bolt12SemanticError>

Creates an InvoiceBuilder for the request using the given required fields and that uses derived signing keys from the originating Offer to sign the Bolt12Invoice. Must use the same ExpandedKey as the one used to create the offer.

See InvoiceRequest::respond_with_no_std for further details.

This is not exported to bindings users as builder patterns don’t map outside of move semantics.

Trait Implementations

impl Clone for VerifiedInvoiceRequest

fn clone(&self) -> VerifiedInvoiceRequest

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VerifiedInvoiceRequest

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.