> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getpara.com/llms.txt
> Use this file to discover all available pages before exploring further.

# useLoginExternalWallet

> Hook for initiating login with an external wallet via SIWE

export const MethodDocs = ({name, description, parameters = [], returns, deprecated = false, since = null, async = false, static: isStatic = false, tag = null, defaultExpanded = false, preventCollapse = false, id = 'method'}) => {
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                    static
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                <span className="text-gray-500 font-normal">{methodParts.openParen}</span>
                <span className="text-blue-600 font-normal">{methodParts.params}</span>
                <span className="text-gray-500 font-normal">{methodParts.closeParen}</span>
              </code>
              
              {deprecated && <span className="px-1.5 py-0.5 text-[0.625rem] font-medium bg-red-100 text-red-800 rounded-lg flex items-center gap-0.5">
                  ⚠ Deprecated
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                  Since v{since}
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              {description}
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                Parameters
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};

The `useLoginExternalWallet` hook initiates the Sign-In With Ethereum (SIWE) flow for an external wallet. After calling it, use `useVerifyExternalWallet` to complete verification.

## Import

```tsx theme={null}
import { useLoginExternalWallet } from "@getpara/react-native-wallet";
```

## Usage

```tsx theme={null}
import { useLoginExternalWallet } from "@getpara/react-native-wallet";

function ExternalWalletLogin({ walletInfo }) {
  const { loginExternalWalletAsync, isPending } = useLoginExternalWallet();

  const handleLogin = async () => {
    try {
      const result = await loginExternalWalletAsync({ externalWallet: walletInfo });
      // Proceed to useVerifyExternalWallet with the result
    } catch (err) {
      console.error(err);
    }
  };

  return <Button title={isPending ? "Connecting..." : "Connect Wallet"} onPress={handleLogin} disabled={isPending} />;
}
```

<MethodDocs
  defaultExpanded={true}
  preventCollapse={true}
  name="useLoginExternalWallet()"
  description="A mutation hook that initiates login using an external wallet."
  parameters={[
{
  name: "externalWallet",
  type: "ExternalWalletInfo | ExternalWalletInfo[]",
  typeLink: "/v2/references/types/externalwalletinfo",
  required: true,
  description: "The external wallet information to use for login."
},
{
  name: "chainId",
  type: "string",
  optional: true,
  description: "The chain ID used to generate the SIWE message."
},
{
  name: "uri",
  type: "string",
  optional: true,
  description: "The URI used to generate the SIWE message."
},
{
  name: "portalTheme",
  type: "Theme",
  optional: true,
  description: "The theme to apply to generated URLs, if different from your configured theme."
},
{
  name: "useShortUrls",
  type: "boolean",
  optional: true,
  description: "Whether to shorten generated URLs. This may correct any issues with generated QR codes."
}
]}
  returns={{ type: "{ loginExternalWallet: (params) => void, loginExternalWalletAsync: (params) => Promise<AuthStateVerifyOrLogin>, data: AuthStateVerifyOrLogin | undefined, isPending: boolean, error: Error | null, reset: () => void }", description: "A mutation result with `loginExternalWallet` / `loginExternalWalletAsync` functions, `data`, and standard React Query mutation fields." }}
  async={true}
/>