add default value for Config

Cargo.lock

@@ -965,6 +965,17 @@ version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
 
+[[package]]
+name = "smart-default"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "133659a15339456eeeb07572eb02a91c91e9815e9cbc89566944d2c8d3efdbf6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "sscanf"
 version = "0.3.1"
@@ -1204,6 +1215,7 @@ dependencies = [
  "secp256k1",
  "serde",
  "serde_json",
+ "smart-default",
  "sscanf",
  "url",
  "waku-sys",

waku-bindings/Cargo.toml

@@ -23,5 +23,6 @@ secp256k1 = { version = "0.24", features = ["rand", "recovery", "serde"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 sscanf = "0.3"
+smart-default = "0.6"
 url = "2.3"
 waku-sys = { version = "0.1.0-beta1", path = "../waku-sys" }

waku-bindings/src/node/config.rs

@@ -7,15 +7,18 @@ use std::str::FromStr;
 use multiaddr::Multiaddr;
 use secp256k1::SecretKey;
 use serde::{Deserialize, Serialize};
+use smart_default::SmartDefault;
 // internal
 
 /// Waku node configuration
-#[derive(Clone, Default, Serialize, Deserialize, Debug)]
+#[derive(Clone, SmartDefault, Serialize, Deserialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct WakuNodeConfig {
     /// Listening IP address. Default `0.0.0.0`
+    #[default(Some(std::net::IpAddr::V4(std::net::Ipv4Addr::new(0, 0, 0, 0))))]
     pub host: Option<std::net::IpAddr>,
     /// Libp2p TCP listening port. Default `60000`. Use `0` for **random**
+    #[default(Some(60000))]
     pub port: Option<usize>,
     /// External address to advertise to other nodes. Can be ip4, ip6 or dns4, dns6.
     /// If null, the multiaddress(es) generated from the ip and port specified in the config (or default ones) will be used.
@@ -25,22 +28,29 @@ pub struct WakuNodeConfig {
     #[serde(with = "secret_key_serde")]
     pub node_key: Option<SecretKey>,
     /// Interval in seconds for pinging peers to keep the connection alive. Default `20`
+    #[default(Some(20))]
     pub keep_alive_interval: Option<usize>,
     /// Enable relay protocol. Default `true`
+    #[default(Some(true))]
     pub relay: Option<bool>,
     /// The minimum number of peers required on a topic to allow broadcasting a message. Default `0`
+    #[default(Some(0))]
     pub min_peers_to_publish: Option<usize>,
     /// Enable filter protocol. Default `false`
+    #[default(Some(false))]
     pub filter: Option<bool>,
     /// Set the log level. Default `INFO`. Allowed values "DEBUG", "INFO", "WARN", "ERROR", "DPANIC", "PANIC", "FATAL"
+    #[default(Some(WakuLogLevel::Info))]
     pub log_level: Option<WakuLogLevel>,
     /// Enable DiscoveryV5. Default `false`
+    #[default(Some(false))]
     #[serde(rename = "discV5")]
     pub disc_v5: Option<bool>,
     /// Array of bootstrap nodes ENR.
     #[serde(rename = "discV5BootstrapNodes")]
     pub disc_v5_bootstrap_nodes: Vec<String>,
     /// UDP port for DiscoveryV5. Default `9000`.
+    #[default(Some(9000))]
     #[serde(rename = "discV5UDPPort")]
     pub disc_v5_udp_port: Option<u16>,
 }