Admin.js

//frontend/src/Admin.js:23
const register = async (e) => {
  try {
    e.preventDefault();
    const response = await fetch('http://localhost:8080/admin-login', {
      method: 'POST',
      headers: {
        'Accept': 'application/json',
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        adminId,
      }),
    });

    const { adminToken, streamApiKey, adminName } = await response.json();
    chatClient = new StreamChat(streamApiKey);

    await chatClient.setUser(
      {
        id: adminName,
        name: 'Administrator'
      },
      adminToken,
    );

    const channel = chatClient.channel('messaging', 'livechat');

    await channel.watch();
    setChannel(channel);

  } catch (e) {
    console.error(e);
  }
};