feat: add token update metadata examples

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

examples/token_update_metadata_with_admin_key.rs

@@ -0,0 +1,107 @@
+/*
+ * ‌
+ * Hedera Rust SDK
+ * ​
+ * Copyright (C) 2022 - 2023 Hedera Hashgraph, LLC
+ * ​
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ‍
+ */
+
+use clap::Parser;
+use hedera::{
+    AccountId, Client, PrivateKey, TokenCreateTransaction, TokenInfoQuery, TokenType, TokenUpdateTransaction
+};
+use time::{Duration, OffsetDateTime};
+
+#[derive(Parser, Debug)]
+struct Args {
+    #[clap(long, env)]
+    operator_account_id: AccountId,
+
+    #[clap(long, env)]
+    operator_key: PrivateKey,
+
+    #[clap(long, env, default_value = "testnet")]
+    hedera_network: String,
+}
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let _ = dotenvy::dotenv();
+
+    let args = Args::parse();
+
+    let client = Client::for_name(&args.hedera_network)?;
+
+    client.set_operator(args.operator_account_id, args.operator_key.clone());
+
+    // Initial metadata
+    let metadata: Vec<u8> = vec![1];
+    // New metadata
+    let new_metadata: Vec<u8> = vec![1, 2];
+
+    let token_create_receipt = TokenCreateTransaction::new()
+        .name("ffff")
+        .symbol("F")
+        .token_type(TokenType::FungibleCommon)
+        .decimals(3)
+        .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())
+        .metadata(metadata)
+        .execute(&client)
+        .await?
+        .get_receipt(&client)
+        .await?;
+
+    // Get token id
+    let token_id = token_create_receipt.token_id.unwrap();
+    println!("Created a mutable token: {token_id:?}");
+
+    let token_info = TokenInfoQuery::new()
+        .token_id(token_id)
+        .execute(&client)
+        .await?;
+
+    println!(
+        "Immutable token's metadata after creation: {:?}",
+        token_info.metadata
+    );
+
+    let token_update_receipt = TokenUpdateTransaction::new()
+        .token_id(token_id)
+        .metadata(new_metadata)
+        .execute(&client)
+        .await?
+        .get_receipt(&client)
+        .await?;
+
+    println!(
+        "Status of token update transaction: {:?}",
+        token_update_receipt.status
+    );
+
+    let token_nft_info = TokenInfoQuery::new()
+        .token_id(token_id)
+        .execute(&client)
+        .await?;
+
+    println!(
+        "Immutable token's metadata after update: {:?}",
+        token_nft_info.metadata
+    );
+
+    Ok(())
+}

examples/token_update_metadata_with_metadata_key.rs

@@ -0,0 +1,112 @@
+/*
+ * ‌
+ * Hedera Rust SDK
+ * ​
+ * Copyright (C) 2022 - 2023 Hedera Hashgraph, LLC
+ * ​
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ‍
+ */
+
+use clap::Parser;
+use hedera::{
+    AccountId, Client, PrivateKey, TokenCreateTransaction, TokenInfoQuery, TokenType, TokenUpdateTransaction
+};
+use time::{Duration, OffsetDateTime};
+
+#[derive(Parser, Debug)]
+struct Args {
+    #[clap(long, env)]
+    operator_account_id: AccountId,
+
+    #[clap(long, env)]
+    operator_key: PrivateKey,
+
+    #[clap(long, env, default_value = "testnet")]
+    hedera_network: String,
+}
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let _ = dotenvy::dotenv();
+
+    let args = Args::parse();
+
+    let client = Client::for_name(&args.hedera_network)?;
+
+    client.set_operator(args.operator_account_id, args.operator_key.clone());
+
+    // Generate a metadata key
+    let metadata_key = PrivateKey::generate_ed25519();
+    // Initial metadata
+    let metadata: Vec<u8> = vec![1];
+    // New metadata
+    let new_metadata: Vec<u8> = vec![1, 2];
+
+    let token_create_receipt = TokenCreateTransaction::new()
+        .name("ffff")
+        .symbol("F")
+        .token_type(TokenType::FungibleCommon)
+        .decimals(3)
+        .initial_supply(1000000)
+        .metadata(metadata)
+        .treasury_account_id(client.get_operator_account_id().unwrap())
+        .expiration_time(OffsetDateTime::now_utc() + Duration::minutes(5))
+        .metadata_key(metadata_key.public_key())
+        .freeze_with(&client)?
+        .sign(args.operator_key.clone())
+        .execute(&client)
+        .await?
+        .get_receipt(&client)
+        .await?;
+
+    println!(
+        "Status of token create transaction: {:?}",
+        token_create_receipt.status
+    );
+
+    // Get token id
+    let token_id = token_create_receipt.token_id.unwrap();
+    println!("Token id: {token_id:?}");
+
+    let token_info = TokenInfoQuery::new()
+        .token_id(token_id)
+        .execute(&client)
+        .await?;
+
+    println!("Token metadata: {:?}", token_info.metadata);
+
+    let token_update_receipt = TokenUpdateTransaction::new()
+        .token_id(token_id)
+        .metadata(new_metadata)
+        .freeze_with(&client)?
+        .sign(metadata_key)
+        .execute(&client)
+        .await?
+        .get_receipt(&client)
+        .await?;
+
+    println!(
+        "Status of token update transaction: {:?}",
+        token_update_receipt.status
+    );
+
+    let token_nft_info = TokenInfoQuery::new()
+        .token_id(token_id)
+        .execute(&client)
+        .await?;
+
+    println!("Updated token metadata: {:?}", token_nft_info.metadata);
+
+    Ok(())
+}