add feature for Invoice ser/de

lightning-invoice/Cargo.toml

@@ -26,7 +26,9 @@ num-traits = { version = "0.2.8", default-features = false }
 bitcoin_hashes = { version = "0.10", default-features = false }
 hashbrown = { version = "0.11", optional = true }
 core2 = { version = "0.3.0", default-features = false, optional = true }
+serde = { version = "1.0.118", optional = true }
 
 [dev-dependencies]
 lightning = { version = "0.0.108", path = "../lightning", default-features = false, features = ["_test_utils"] }
 hex = "0.4"
+serde_json = { version = "1"}

lightning-invoice/src/lib.rs

@@ -35,6 +35,8 @@ extern crate secp256k1;
 extern crate alloc;
 #[cfg(any(test, feature = "std"))]
 extern crate core;
+#[cfg(feature = "serde")]
+extern crate serde;
 
 #[cfg(feature = "std")]
 use std::time::SystemTime;
@@ -61,6 +63,9 @@ use core::slice::Iter;
 use core::time::Duration;
 use core::str;
 
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Deserializer,Serialize, Serializer, de::Error};
+
 mod de;
 mod ser;
 mod tb;
@@ -1523,6 +1528,23 @@ impl<S> Display for SignOrCreationError<S> {
 	}
 }
 
+#[cfg(feature = "serde")]
+impl Serialize for Invoice {
+	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
+		serializer.serialize_str(self.to_string().as_str())
+	}
+}
+#[cfg(feature = "serde")]
+impl<'de> Deserialize<'de> for Invoice {
+	fn deserialize<D>(deserializer: D) -> Result<Invoice, D::Error> where D: Deserializer<'de> {
+		let bolt11 = String::deserialize(deserializer)?
+			.parse::<Invoice>()
+			.map_err(|e| D::Error::custom(format!("{:?}", e)))?;
+
+		Ok(bolt11)
+	}
+}
+
 #[cfg(test)]
 mod test {
 	use bitcoin_hashes::hex::FromHex;
@@ -1974,4 +1996,26 @@ mod test {
 
 		assert!(invoice.would_expire(Duration::from_secs(1234567 + DEFAULT_EXPIRY_TIME + 1)));
 	}
+
+	#[cfg(feature = "serde")]
+	#[test]
+	fn test_serde() {
+		let invoice_str = "lnbc100p1psj9jhxdqud3jxktt5w46x7unfv9kz6mn0v3jsnp4q0d3p2sfluzdx45tqcs\
+			h2pu5qc7lgq0xs578ngs6s0s68ua4h7cvspp5q6rmq35js88zp5dvwrv9m459tnk2zunwj5jalqtyxqulh0l\
+			5gflssp5nf55ny5gcrfl30xuhzj3nphgj27rstekmr9fw3ny5989s300gyus9qyysgqcqpcrzjqw2sxwe993\
+			h5pcm4dxzpvttgza8zhkqxpgffcrf5v25nwpr3cmfg7z54kuqq8rgqqqqqqqq2qqqqq9qq9qrzjqd0ylaqcl\
+			j9424x9m8h2vcukcgnm6s56xfgu3j78zyqzhgs4hlpzvznlugqq9vsqqqqqqqlgqqqqqeqq9qrzjqwldmj9d\
+			ha74df76zhx6l9we0vjdquygcdt3kssupehe64g6yyp5yz5rhuqqwccqqyqqqqlgqqqqjcqq9qrzjqf9e58a\
+			guqr0rcun0ajlvmzq3ek63cw2w282gv3z5uupmuwvgjtq2z55qsqqg6qqqyqqqrtnqqqzq3cqygrzjqvphms\
+			ywntrrhqjcraumvc4y6r8v4z5v593trte429v4hredj7ms5z52usqq9ngqqqqqqqlgqqqqqqgq9qrzjq2v0v\
+			p62g49p7569ev48cmulecsxe59lvaw3wlxm7r982zxa9zzj7z5l0cqqxusqqyqqqqlgqqqqqzsqygarl9fh3\
+			8s0gyuxjjgux34w75dnc6xp2l35j7es3jd4ugt3lu0xzre26yg5m7ke54n2d5sym4xcmxtl8238xxvw5h5h5\
+			j5r6drg6k6zcqj0fcwg";
+		let invoice = invoice_str.parse::<super::Invoice>().unwrap();
+		let serialized_invoice = serde_json::to_string(&invoice).unwrap();
+		let deserialized_invoice: super::Invoice = serde_json::from_str(serialized_invoice.as_str()).unwrap();
+		assert_eq!(invoice, deserialized_invoice);
+		assert_eq!(invoice_str, deserialized_invoice.to_string().as_str());
+		assert_eq!(invoice_str, serialized_invoice.as_str().trim_matches('\"'));
+	}
 }