# Initialise

In order to begin using **NotVault** within your TypeScript projects, you will need to initialise the library correctly. This initialisation process sets up the necessary connections and providers for the library's operations, particularly for interacting with IPFS and the Ethereum blockchain via JSON-RPC.

#### Environment Variables

Prior to initializing **NotVault**, you'll need to ensure the following environment variables are set:

1. `PUBLIC_URL`
2. `PINATA_API_KEY`
3. `PINATA_SECRET_API_KEY`

These are critical for the functioning of IPFS file operations and the connectivity with Pinata.

#### Initialization Steps

To initialise **NotVault** in a TypeScript environment, follow the steps below:

1. **Import the necessary libraries**:

   ```typescript
   import { NotVault } from '@notcentralised/notvault-sdk';
   import { ethers } from 'ethers';
   ```
2. **Instantiate the NotVault class**:

   ```typescript
   const vault = new NotVault();
   ```
3. **Create an JSON RPC connection**:

   * Set up a new instance of `JsonRpcProvider` from the `ethers` library. You need to pass in your RPC Host URL to the `JsonRpcProvider` constructor.
   * Create a `signer` by creating a new instance of the `Wallet` class from the `ethers` library. Pass in your private key and the custom HttpProvider instance.

   ```typescript
   const customHttpProvider = new ethers.providers.JsonRpcProvider('... RPC Host ...');
   const signer = new ethers.Wallet('... Private Key ...', customHttpProvider);
   ```
4. **Initialise the vault object**: Now, using the `.init` function of the `vault` instance, pass in your Chain ID and the `signer` instance created in the previous step.

   ```typescript
   vault.init('... Chain ID ...', signer);
   ```

After successfully following these steps, your **NotVault** instance is set up and ready for file operations on IPFS and transactions on an EVM compatible blockchain.


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