@turnkey/core/dist/__stampers__/api/mobile/stamper.mjs

A core JavaScript web and React Native package for interfacing with Turnkey's infrastructure.

import { ApiKeyStamper } from '@turnkey/api-key-stamper';
import { generateP256KeyPair } from '@turnkey/crypto';

let Keychain;
try {
    Keychain = require("react-native-keychain");
}
catch {
    throw new Error("Please install react-native-keychain in your app to use ReactNativeKeychainStamper");
}
class ReactNativeKeychainStamper {
    async listKeyPairs() {
        return await Keychain.getAllGenericPasswordServices();
    }
    async clearKeyPairs() {
        const keys = await this.listKeyPairs();
        for (const key of keys) {
            await this.deleteKeyPair(key);
        }
    }
    async createKeyPair(externalKeyPair) {
        let privateKey;
        let publicKey;
        if (externalKeyPair) {
            privateKey = externalKeyPair.privateKey;
            publicKey = externalKeyPair.publicKey;
        }
        else {
            const pair = generateP256KeyPair();
            privateKey = pair.privateKey;
            publicKey = pair.publicKey;
        }
        // store in Keychain
        await Keychain.setGenericPassword(publicKey, privateKey, {
            service: publicKey,
        });
        return publicKey;
    }
    async deleteKeyPair(publicKeyHex) {
        await Keychain.resetGenericPassword({
            service: publicKeyHex,
        });
    }
    async getPrivateKey(publicKeyHex) {
        const creds = await Keychain.getGenericPassword({
            service: publicKeyHex,
        });
        if (!creds)
            return null;
        return creds.password;
    }
    async stamp(payload, publicKeyHex) {
        const privateKey = await this.getPrivateKey(publicKeyHex);
        if (!privateKey) {
            throw new Error(`No private key found for public key: ${publicKeyHex}`);
        }
        const stamper = new ApiKeyStamper({
            apiPublicKey: publicKeyHex,
            apiPrivateKey: privateKey,
        });
        const { stampHeaderName, stampHeaderValue } = await stamper.stamp(payload);
        return { stampHeaderName, stampHeaderValue };
    }
}

export { ReactNativeKeychainStamper };
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