feat(api): unified POST /pay endpoint for any lightning destination

Cargo.toml

@@ -18,6 +18,10 @@ demo = []
 # Branch: https://github.com/moneydevkit/ldk-node/tree/lsp-0.7.0_socks-support
 ldk-node = { git = "https://github.com/moneydevkit/ldk-node", rev = "c3aba2a47a6314968979de8fe772d9d1bcb3ee6e" }
 
+# Pinned to the same git rev as ldk-node's transitive pull to avoid duplicate
+# crate compilation. Verify with `cargo tree -d | grep bitcoin-payment-instructions`.
+bitcoin-payment-instructions = { git = "https://github.com/moneydevkit/bitcoin-payment-instructions", rev = "6796e87525d6c564e1332354a808730e2ba2ebf8", default-features = false, features = ["http"] }
+
 axum = { version = "0.8", features = ["json", "ws"] }
 utoipa = { version = "5.4", features = ["axum_extras"] }
 utoipa-axum = "0.2"
@@ -45,3 +49,5 @@ ldk-node-lsp = { package = "ldk-node", git = "https://github.com/moneydevkit/ldk
 tempfile = "3"
 tokio-tungstenite = "0.26"
 tower = "0.5.3"
+wiremock = "0.6"
+bech32 = "0.11"

src/daemon/api/mod.rs

@@ -7,6 +7,7 @@ pub mod info;
 pub mod invoices;
 pub mod onchain;
 pub mod pay;
+pub mod pay_any;
 pub mod websocket;
 
 use std::sync::Arc;
@@ -32,7 +33,7 @@ use crate::daemon::types::{
     DecodeInvoiceRequest, DecodeInvoiceResponse, DecodeOfferRequest, DecodeOfferResponse,
     GetBalanceResponse, GetInfoResponse, IncomingPaymentResponse, ListOutgoingPaymentsRequest,
     ListPaymentsRequest, OutgoingPaymentResponse, PayInvoiceRequest, PayInvoiceResponse,
-    SendToAddressRequest,
+    PayRequest, PayResponse, SendToAddressRequest,
 };
 
 #[derive(Clone)]
@@ -89,6 +90,7 @@ pub fn router(state: AppState) -> Router {
         .routes(routes!(close_channel))
         .routes(routes!(send_to_address))
         .routes(routes!(pay_invoice))
+        .routes(routes!(pay))
         .layer(middleware::from_fn(auth::require_full_access));
 
     let (router, api) = OpenApiRouter::with_openapi(ApiDoc::openapi())
@@ -320,3 +322,20 @@ async fn pay_invoice(
 ) -> Result<Json<PayInvoiceResponse>, AppError> {
     Ok(Json(pay::handle_pay_invoice(state.node, &req).await?))
 }
+
+#[utoipa::path(
+    post, path = "/pay", tag = "send",
+    request_body(content = PayRequest, content_type = "application/x-www-form-urlencoded"),
+    responses(
+        (status = 200, body = PayResponse),
+        (status = 400, body = ApiError),
+        (status = 500, body = ApiError),
+    ),
+    security(("basic_auth" = []))
+)]
+async fn pay(
+    State(state): State<AppState>,
+    Form(req): Form<PayRequest>,
+) -> Result<Json<PayResponse>, AppError> {
+    Ok(Json(pay_any::handle_pay(state, &req).await?))
+}