nostrs: Add metadata subcommand

nostrs/Cargo.toml

@@ -9,4 +9,5 @@ edition = "2021"
 anyhow = "1.0.69"
 clap = { version = "4.1.6", features = ["derive"] }
 nostr-sdk = "0.18"
+serde_json = "1.0.93"
 tokio = { version = "1.25.0", features = ["full"] }

nostrs/src/handler.rs

@@ -1 +1,2 @@
+pub mod metadata;
 pub mod timeline;

nostrs/src/handler/metadata.rs

@@ -0,0 +1,29 @@
+use std::{env, time::Duration};
+
+use anyhow::Context;
+use nostr_sdk::{
+    prelude::{FromSkStr, Keys, Kind, SubscriptionFilter},
+    Client,
+};
+use serde_json::Value;
+
+pub async fn handle() -> anyhow::Result<()> {
+    let my_keys = Keys::from_sk_str(env::var("SECRET_KEY")?.as_str())?;
+
+    let client = Client::new(&my_keys);
+    client
+        .add_relay("wss://nostr-pub.wellorder.net", None)
+        .await?;
+    client.connect().await;
+
+    let filter = SubscriptionFilter::new()
+        .kind(Kind::Metadata)
+        .author(my_keys.public_key())
+        .limit(1);
+    let timeout = Duration::from_secs(10);
+    let events = client.get_events_of(vec![filter], Some(timeout)).await?;
+    let event = events.first().context("metadata not found")?;
+    let metadata: Value = serde_json::from_str(event.content.as_str())?;
+    println!("{}", serde_json::to_string_pretty(&metadata)?);
+    Ok(())
+}

nostrs/src/main.rs

@@ -9,13 +9,15 @@ struct Command {
 
 #[derive(clap::Subcommand)]
 enum Subcommand {
+    Metadata,
     Timeline,
 }
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     let command = <Command as clap::Parser>::parse();
     match command.subcommand {
+        Subcommand::Metadata => handler::metadata::handle().await,
         Subcommand::Timeline => handler::timeline::handle().await,
     }
 }