Quickstart: Wire a support chat into your own UI

The message loop

let conversationId;
async function send(text) {
  appendBubble('user', text);            // optimistic
  const res = await fetch(`${BASE}/support/chat`, {
    method: 'POST', headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ conversation_id: conversationId, message: text }),
  });
  const { reply, conversation_id } = await res.json();
  conversationId = conversation_id;
  appendBubble('assistant', reply);
}

Handle failures gracefully

If a send fails, mark the user bubble as unsent and offer a retry rather than losing the message. Wrap the call in the standard error handler.