feat: add metadata examples

Signed-off-by: Ricky Saechao <[email protected]>

Author: RickyLB

examples/token_update_metadata_with_admin_key.rs

@@ -46,6 +46,8 @@ async fn main() -> anyhow::Result<()> {
 
     client.set_operator(args.operator_account_id, args.operator_key.clone());
 
+    let admin_key = PrivateKey::generate_ed25519();
+
     // Initial metadata
     let metadata: Vec<u8> = vec![1];
     // New metadata
@@ -59,8 +61,10 @@ async fn main() -> anyhow::Result<()> {
         .initial_supply(1000000)
         .treasury_account_id(client.get_operator_account_id().unwrap())
         .expiration_time(OffsetDateTime::now_utc() + Duration::minutes(5))
-        .admin_key(client.get_operator_public_key().unwrap())
+        .admin_key(admin_key.public_key())
         .metadata(metadata)
+        .freeze_with(&client)?
+        .sign(admin_key.clone())
         .execute(&client)
         .await?
         .get_receipt(&client)
@@ -83,6 +87,8 @@ async fn main() -> anyhow::Result<()> {
     let token_update_receipt = TokenUpdateTransaction::new()
         .token_id(token_id)
         .metadata(new_metadata)
+        .freeze_with(&client)?
+        .sign(admin_key)
         .execute(&client)
         .await?
         .get_receipt(&client)

examples/token_update_metadata_with_metadata_key.rs

@@ -64,7 +64,7 @@ async fn main() -> anyhow::Result<()> {
         .expiration_time(OffsetDateTime::now_utc() + Duration::minutes(5))
         .metadata_key(metadata_key.public_key())
         .freeze_with(&client)?
-        .sign(args.operator_key.clone())
+        .sign(metadata_key.clone())
         .execute(&client)
         .await?
         .get_receipt(&client)

tests/e2e/token/update.rs

@@ -2,10 +2,17 @@ use assert_matches::assert_matches;
 use hedera::{
     Hbar,
     Key,
+    PrivateKey,
     Status,
+    TokenCreateTransaction,
     TokenInfoQuery,
+    TokenType,
     TokenUpdateTransaction,
 };
+use time::{
+    Duration,
+    OffsetDateTime,
+};
 
 use super::FungibleToken;
 use crate::account::Account;
@@ -99,3 +106,54 @@ async fn immutable_token_fails() -> anyhow::Result<()> {
 
     Ok(())
 }
+
+#[tokio::test]
+
+async fn update_immutable_token_metadata() -> anyhow::Result<()> {
+    let Some(TestEnvironment { config: _, client }) = setup_nonfree() else {
+        return Ok(());
+    };
+    let initial_metadata = vec![1];
+    let updated_metadata = vec![1, 2];
+    let metadata_key = PrivateKey::generate_ed25519();
+
+    // Create the Fungible Token with metadata key.
+    let token_id = TokenCreateTransaction::new()
+        .name("ffff")
+        .symbol("F")
+        .token_type(TokenType::FungibleCommon)
+        .decimals(3)
+        .initial_supply(1000000)
+        .metadata(initial_metadata.clone())
+        .treasury_account_id(client.get_operator_account_id().unwrap())
+        .expiration_time(OffsetDateTime::now_utc() + Duration::minutes(5))
+        .metadata_key(metadata_key.public_key())
+        .execute(&client)
+        .await?
+        .get_receipt(&client)
+        .await?
+        .token_id
+        .unwrap();
+
+    let token_info = TokenInfoQuery::new().token_id(token_id).execute(&client).await?;
+
+    assert_eq!(&token_info.metadata, &initial_metadata);
+    assert_eq!(token_info.metadata_key, Some(Key::Single(metadata_key.public_key())));
+
+    // Update token with metadata key
+    _ = TokenUpdateTransaction::new()
+        .token_id(token_id)
+        .metadata(updated_metadata.clone())
+        .freeze_with(&client)?
+        .sign(metadata_key)
+        .execute(&client)
+        .await?
+        .get_receipt(&client)
+        .await;
+
+    let token_info = TokenInfoQuery::new().token_id(token_id).execute(&client).await?;
+
+    assert_eq!(token_info.metadata, updated_metadata);
+
+    Ok(())
+}