Sign a message

import { BrowserSDK, AddressType } from "@phantom/browser-sdk";

const sdk = new BrowserSDK({
  providers: ["google", "apple", "injected"],
  appId: "your-app-id",
  addressTypes: [AddressType.solana],
});

const { signature, publicKey } = await sdk.solana.signMessage("Sign to verify");
console.log("Signature:", signature);
console.log("Public key:", publicKey);

import { useSolana } from "@phantom/react-native-sdk";
import { View, Button, Alert, StyleSheet } from "react-native";

function SignMessage() {
  const { solana } = useSolana();

  const sign = async () => {
    try {
      const message = "Hello, please sign this message to verify your identity.";
      const { signature, publicKey } = await solana.signMessage(message);

      Alert.alert("Signed!", `Public key: ${publicKey}`);
      return signature;
    } catch (error) {
      Alert.alert("Error", error instanceof Error ? error.message : "Signing failed");
      throw error;
    }
  };

  return (
    <View style={styles.container}>
      <Button title="Sign Message" onPress={sign} />
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    padding: 20,
    gap: 10,
  },
});