> For the complete documentation index, see [llms.txt](https://puppy-gaming.gitbook.io/simple-crypto-webgl-templates/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://puppy-gaming.gitbook.io/simple-crypto-webgl-templates/workflow-and-references/solana.jslib.md).

# Solana.jslib

This script is essentially the front man for interacting with the Solana Web3 API / RPC. It's functions are called from `CryptoReceiver.cs` apart from the Solana Transaction which can be called from any script.

#### GetSolanaWebJS()

This is called from the `Awake` function in `CryptoReceiver.cs` and it loads the Solana Web3 JS package into the page. This also links to 2 more functions to load the **@solana/spl-token** and **@metaplex/js** libraries.

#### SolanaLogin()

This function takes the `service` value from the `OnConnect` in `CryptoReceiver` and uses it to dictate which Wallet Extension it will attempt to connect with. It will pass back the wallet address to `CryptoReceiver` in a callback and also pass it to the `SolanaTokens` function.

#### SolanaTokens()

This function interacts with the Solana JSON RPC to get all the Token Accounts owned by your Wallet. It will then send all of the SPL Tokens to the `CryptoReceiver`.

#### UseMetaplex()

This function has replaced the previous `Vlawmz()` function. It's a more simple way of grabbing a list of owned NFT metadata using the @Mataplex/js library.

#### SendSolTokens()

This is the final function the the chain to grab the Metadata of NFTs. It fetches a JSON response from the Metadata URLs and then sends selective parts of the response for each one back to the `CryptoReceiver` script.

#### SendSolTransaction(destination, amount, callback)

This function can be called from any script and you can pass in a Destination address and amount to send. There is a demonstration of this in the `TransactionUIHandler.cs` Demo script. You will need to add this where you add variables at the start of the script.

```
[DllImport("__Internal")]
    private static extern string SendSolTransaction(string destination, Double amount, Action<bool> callback);
```

Then if you want to call it you can by passing in the destination wallet and also the amount as a `Double` value along with the callback function as the arguments like below. For an example amount, `0.1` would be 0.1 SOL.

```
SendSolTransaction("WalletAddressHere", 0.1, OnTransactionCallback);
```

Then you need a function to handle the callback, in the demo there is one provided which displays a popup and shows whether the transaction was successful or not.

```
[MonoPInvokeCallback (typeof (Action<bool>))]
public static void OnTransactionCallback(bool result)
{
    Debug.Log(result);
    gallery.transactionPopup.SetActive(true);
    if (result) {
        gallery.transactionResult.text = ("Success");
    }
    else {
        gallery.transactionResult.text = ("Failed");
    }
}
```

#### SendSPLTransaction(destination, amount, mint, decimals, callback)

This function can be called from any script and you can pass in a Destination address, amount, token mint address and the decimals of the token to send. There is a demonstration of this in the `TransactionUIHandler.cs` Demo script. You will need to add this where you add variables at the start of the script.

```
[DllImport("__Internal")]
    private static extern string SendSPLTransaction(string destination, Double amount, string mint, int decimals, Action<bool> callback);
```

Then if you want to call it you can by passing in the destination wallet, amount as a Double value , mint address for the token and its decimals along with the callback function as the arguments like below.

```
/SendSPLTransaction(destination.text, doubleAmount, mint, decimals, OnTransactionCallback);
```

Then you need a function to handle the callback, in the demo there is one provided which displays a popup and shows whether the transaction was successful or not. You can use the same Callback function for SOL and SPL Transactions.

```
[MonoPInvokeCallback (typeof (Action<bool>))]
public static void OnTransactionCallback(bool result)
{
    Debug.Log(result);
    gallery.transactionPopup.SetActive(true);
    if (result) {
        gallery.transactionResult.text = ("Success");
    }
    else {
        gallery.transactionResult.text = ("Failed");
    }
}
```