# Delete Scheduled Transaction

## Summary:

This script deletes a scheduled transaction on the Hedera network using its schedule ID. It demonstrates how to use the `ScheduleDeleteTransaction` to create a transaction for deleting a scheduled transaction, sign it with the admin key, execute it on the Hedera network, and retrieve the transaction status to confirm the deletion operation

### Step 1: Imports and Environment Setup

```javascript
const {
    ScheduleDeleteTransaction,
    Client,
    PrivateKey
} = require("@hashgraph/sdk");
require('dotenv').config({ path: 'Scheduled_TX/.env' });
```

* The script imports necessary modules from the Hedera JavaScript SDK (`@hashgraph/sdk`): `ScheduleDeleteTransaction`, `Client`, and `PrivateKey`.
* It also imports the `dotenv` module to load environment variables from a `.env` file located in the `Scheduled_TX` directory.

### Step 2: Environment Variables Retrieval and Validation

```javascript
const myAccountId = process.env.MY_ACCOUNT_ID;
const myPrivateKey = PrivateKey.fromString(process.env.MY_PRIVATE_KEY);

const scheduleId = process.env.SCHEDULE_ID;

if (myAccountId == null ||
    myPrivateKey == null ) {
    throw new Error("Environment variables myAccountId and myPrivateKey must be present");
}
```

* The code retrieves necessary environment variables such as account ID and private key from the `.env` file.
* It validates that the required environment variables (`MY_ACCOUNT_ID` and `MY_PRIVATE_KEY`) are present. If not, it throws an error.

### Step 3: Client Setup

```javascript
const client = Client.forTestnet();
client.setOperator(myAccountId, myPrivateKey);
```

* It creates a client instance for the Hedera testnet and sets the operator account using the user's account ID and private key.

### Step 4: Main Function

```javascript
async function main() {
    const transaction = await new ScheduleDeleteTransaction()
        .setScheduleId(scheduleId)
        .freezeWith(client)
        .sign(myPrivateKey);

    const txResponse = await transaction.execute(client);

    const receipt = await txResponse.getReceipt(client);

    const transactionStatus = receipt.status;
    console.log("The transaction consensus status is " +transactionStatus);

    process.exit();
}
```

* This is the main function named `main()`.
* It creates a `ScheduleDeleteTransaction` instance to delete the scheduled transaction using the provided schedule ID.
* The transaction is frozen with the client, signed with the admin key (private key), and executed using the client.
* The script then retrieves the receipt of the transaction to obtain its status, which indicates the consensus status of the deletion operation.
* The transaction consensus status is logged to the console.

### Step 5: Execution:

```javascript
main();
```

* This line calls the `main()` function to start the execution of the script.