npm package: @portal-payments/wallet-adapter-anchor
Description: `AnchorConnectionProvider` component and `workSpace` for Solana wallets using Svelte
Author: Svelte on Solana team
Latest version: 2.0.3

# `@portal-payments/wallet-adapter-anchor`

`AnchorConnectionProvider` component and `workSpace` for Solana wallets using Svelte

## Installing

You have already installed the core package to run the wallet Svelte Store [@portal-payments/wallet-adapter-core](https://github.com/svelte-on-solana/wallet-adapter/blob/master/packages/core/README.md) and the UI components to use the wallet [@portal-payments/wallet-adapter-ui](https://github.com/svelte-on-solana/wallet-adapter/blob/master/packages/ui/README.md/). Then install the `AnchorConnectionProvider` component and `workSpace` file contained in this package.

```shell
npm i @portal-payments/wallet-adapter-anchor
```

## Set Up

Add `@project-serum/anchor` to `optimizeDeps` inside `vite.config.js`. This pre-bundles the `@project-serum/anchor` package. This steps converts CommonJS dependencies into ESM ( Vite's dev server serves all code as native ESM ).

```javascript
import { sveltekit } from "@sveltejs/kit/vite";

/** @type {import('vite').UserConfig} */
const config = {
  plugins: [sveltekit()],
  // ... use the same implementation from the SvelteKit ui
  optimizeDeps: {
    include: ["@project-serum/anchor", "@solana/web3.js", "buffer"],
    // ... use the same implementation from the SvelteKit ui
  },
  // ... use the same implementation from the SvelteKit ui
};

export default config;
```

The `AnchorConnectionProvider` for Anchor Dapps accepts the next props.

| prop    | type     | default |
| ------- | -------- | ------- |
| network | `string` |         |
| idl     | `Idl`    |         |

It is automatically connected to the `workSpace` defining all the parameters to share among the components in your Anchor Dapp **(baseAccount, connection, provider, program, systemProgram and network)**.

## SvelteKit

In the **\_\_layout.svelte** component you can import the wallets and setup the UI components.

```html
<script lang="ts">
  import { walletStore } from "@portal-payments/wallet-adapter-core";
  import { WalletProvider, WalletMultiButton } from "@portal-payments/wallet-adapter-ui";
  import { AnchorConnectionProvider, workSpace } from "@portal-payments/wallet-adapter-anchor";
  import { clusterApiUrl } from "@solana/web3.js";
  import idl from "../../../target/idl/<my-anchor-project>.json";

  const localStorageKey = "walletAdapter";
  const network = clusterApiUrl("devnet"); // localhost or mainnet

  let wallets;

  onMount(async () => {
    const {
      PhantomWalletAdapter,
      SlopeWalletAdapter,
      SolflareWalletAdapter,
      SolletExtensionWalletAdapter,
      TorusWalletAdapter,
    } = await import("@solana/wallet-adapter-wallets");

    const walletsMap = [
      new PhantomWalletAdapter(),
      new SlopeWalletAdapter(),
      new SolflareWalletAdapter(),
      new SolletExtensionWalletAdapter(),
      new TorusWalletAdapter(),
    ];

    wallets = walletsMap;
  });
</script>

<WalletProvider {localStorageKey} {wallets} autoConnect />
<AnchorConnectionProvider {network} {idl} />
<div>
  <slot />
</div>
<WalletMultiButton />
```

## Svelte Template

In `App.svelte` or the entry point of your SPA, you can setup the wallet and components like this.

```html
<script lang="ts">
  import { walletStore } from "@portal-payments/wallet-adapter-core";
  import { WalletProvider, WalletMultiButton } from "@portal-payments/wallet-adapter-ui";
  import { AnchorConnectionProvider, workSpace } from "@portal-payments/wallet-adapter-anchor";
  import { clusterApiUrl } from "@solana/web3.js";
  import idl from "../../../target/idl/<my-anchor-project>.json";
  import { PhantomWalletAdapter, SolflareWalletAdapter } from "@solana/wallet-adapter-wallets";

  const localStorageKey = "walletAdapter";
  const network = clusterApiUrl("devnet"); // localhost or mainnet

  let wallets = [new PhantomWalletAdapter(), new SolflareWalletAdapter()];
</script>

<WalletProvider {localStorageKey} {wallets} autoConnect />
<AnchorConnectionProvider {network} {idl} />
<WalletMultiButton />

{#if $walletStore?.connected}
<div>My wallet is connected</div>
{/if}
```

## Example Implementation

See example implementations of the `@portal-payments/wallet-adapter-ui` library.

- [Demo site][1]

[1]: https://github.com/silvestrevivo/solana-svelte-counter/tree/master/app