login.js - init EThree - Encrypted Chat App

login.js

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const registerEThree = async (eThree, user) => {
  if (eThree) {
    try {
      await eThree.register();
      // generate the backup key.
      if (user && user.keyPassword) {
        await eThree.backupPrivateKey(user.keyPassword);
      }
    } catch (err) {
      if (err.name === 'IdentityAlreadyExistsError') {
        console.log('EThree id already existed');
        // restore the private key
        const hasLocalPrivateKey = await eThree.hasLocalPrivateKey();
        console.log(`${user.fullname} has local private key: ${hasLocalPrivateKey}`);
        if (!hasLocalPrivateKey) {
          await eThree.restorePrivateKey(user.keyPassword);
        }
      }
    }
  }
};

const initEthree = async (user) => {

  async function getVirgilToken() {
    const response = await fetch('http://localhost:8080/virgil-jwt', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        identity: user.id
      })
    })
    return response.json().then(data => {
      localStorage.setItem('virgilToken', JSON.stringify(data.virgilToken));
      return data.virgilToken;
    });
  }

  const eThree = await window.E3kit.EThree.initialize(getVirgilToken);
  if (eThree) {
    console.log('Initialized EThree successfully');
    console.log(eThree);

    setEThree(eThree);

    await registerEThree(eThree, user);

    localStorage.setItem('auth', JSON.stringify(user));

    setUser(user);
    setIsLoading(false);

    history.push('/');
  }
};
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