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275 lines
8.1 KiB
Markdown
275 lines
8.1 KiB
Markdown
# n8n Chat
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This is an embeddable Chat widget for n8n. It allows the execution of AI-Powered Workflows through a Chat window.
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**Windowed Example**
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**Fullscreen Example**
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## Prerequisites
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Create a n8n workflow which you want to execute via chat. The workflow has to be triggered using a **Chat Trigger** node.
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Open the **Chat Trigger** node and add your domain to the **Allowed Origins (CORS)** field. This makes sure that only requests from your domain are accepted.
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[See example workflow](https://github.com/n8n-io/n8n/blob/master/packages/%40n8n/chat/resources/workflow.json)
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> Make sure the workflow is **Active.**
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### How it works
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Each Chat request is sent to the n8n Webhook endpoint, which then sends back a response.
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Each request is accompanied by an `action` query parameter, where `action` can be one of:
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- `loadPreviousSession` - When the user opens the Chatbot again and the previous chat session should be loaded
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- `sendMessage` - When the user sends a message
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## Installation
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Open the **Webhook** node and replace `YOUR_PRODUCTION_WEBHOOK_URL` with your production URL. This is the URL that the Chat widget will use to send requests to.
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### a. CDN Embed
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Add the following code to your HTML page.
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```html
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<link href="https://cdn.jsdelivr.net/npm/@n8n/chat/dist/style.css" rel="stylesheet" />
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<script type="module">
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import { createChat } from 'https://cdn.jsdelivr.net/npm/@n8n/chat/dist/chat.bundle.es.js';
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createChat({
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webhookUrl: 'YOUR_PRODUCTION_WEBHOOK_URL'
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});
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</script>
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```
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### b. Import Embed
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Install and save n8n Chat as a production dependency.
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```sh
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npm install @n8n/chat
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```
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Import the CSS and use the `createChat` function to initialize your Chat window.
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```ts
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import '@n8n/chat/style.css';
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import { createChat } from '@n8n/chat';
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createChat({
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webhookUrl: 'YOUR_PRODUCTION_WEBHOOK_URL'
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});
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```
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##### Vue.js
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```html
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<script lang="ts" setup>
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// App.vue
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import { onMounted } from 'vue';
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import '@n8n/chat/style.css';
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import { createChat } from '@n8n/chat';
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onMounted(() => {
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createChat({
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webhookUrl: 'YOUR_PRODUCTION_WEBHOOK_URL'
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});
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});
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</script>
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<template>
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<div></div>
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</template>
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```
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##### React
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```tsx
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// App.tsx
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import { useEffect } from 'react';
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import '@n8n/chat/style.css';
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import { createChat } from '@n8n/chat';
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export const App = () => {
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useEffect(() => {
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createChat({
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webhookUrl: 'YOUR_PRODUCTION_WEBHOOK_URL'
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});
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}, []);
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return (<div></div>);
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};
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```
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## Options
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The default options are:
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```ts
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createChat({
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webhookUrl: '',
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webhookConfig: {
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method: 'POST',
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headers: {}
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},
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target: '#n8n-chat',
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mode: 'window',
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chatInputKey: 'chatInput',
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chatSessionKey: 'sessionId',
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metadata: {},
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showWelcomeScreen: false,
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defaultLanguage: 'en',
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initialMessages: [
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'Hi there! 👋',
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'My name is Nathan. How can I assist you today?'
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],
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i18n: {
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en: {
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title: 'Hi there! 👋',
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subtitle: "Start a chat. We're here to help you 24/7.",
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footer: '',
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getStarted: 'New Conversation',
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inputPlaceholder: 'Type your question..',
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},
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},
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});
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```
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### `webhookUrl`
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- **Type**: `string`
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- **Required**: `true`
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- **Examples**:
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- `https://yourname.app.n8n.cloud/webhook/513107b3-6f3a-4a1e-af21-659f0ed14183`
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- `http://localhost:5678/webhook/513107b3-6f3a-4a1e-af21-659f0ed14183`
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- **Description**: The URL of the n8n Webhook endpoint. Should be the production URL.
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### `webhookConfig`
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- **Type**: `{ method: string, headers: Record<string, string> }`
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- **Default**: `{ method: 'POST', headers: {} }`
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- **Description**: The configuration for the Webhook request.
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### `target`
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- **Type**: `string`
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- **Default**: `'#n8n-chat'`
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- **Description**: The CSS selector of the element where the Chat window should be embedded.
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### `mode`
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- **Type**: `'window' | 'fullscreen'`
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- **Default**: `'window'`
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- **Description**: The render mode of the Chat window.
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- In `window` mode, the Chat window will be embedded in the target element as a chat toggle button and a fixed size chat window.
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- In `fullscreen` mode, the Chat will take up the entire width and height of its target container.
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### `showWelcomeScreen`
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- **Type**: `boolean`
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- **Default**: `false`
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- **Description**: Whether to show the welcome screen when the Chat window is opened.
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### `chatSessionKey`
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- **Type**: `string`
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- **Default**: `'sessionId'`
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- **Description**: The key to use for sending the chat history session ID for the AI Memory node.
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### `chatInputKey`
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- **Type**: `string`
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- **Default**: `'chatInput'`
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- **Description**: The key to use for sending the chat input for the AI Agent node.
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### `defaultLanguage`
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- **Type**: `string`
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- **Default**: `'en'`
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- **Description**: The default language of the Chat window. Currently only `en` is supported.
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### `i18n`
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- **Type**: `{ [key: string]: Record<string, string> }`
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- **Description**: The i18n configuration for the Chat window. Currently only `en` is supported.
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### `initialMessages`
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- **Type**: `string[]`
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- **Description**: The initial messages to be displayed in the Chat window.
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### `allowFileUploads`
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- **Type**: `Ref<boolean> | boolean`
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- **Default**: `false`
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- **Description**: Whether to allow file uploads in the chat. If set to `true`, users will be able to upload files through the chat interface.
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### `allowedFilesMimeTypes`
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- **Type**: `Ref<string> | string`
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- **Default**: `''`
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- **Description**: A comma-separated list of allowed MIME types for file uploads. Only applicable if `allowFileUploads` is set to `true`. If left empty, all file types are allowed. For example: `'image/*,application/pdf'`.
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## Customization
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The Chat window is entirely customizable using CSS variables.
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```css
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:root {
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--chat--color-primary: #e74266;
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--chat--color-primary-shade-50: #db4061;
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--chat--color-primary-shade-100: #cf3c5c;
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--chat--color-secondary: #20b69e;
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--chat--color-secondary-shade-50: #1ca08a;
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--chat--color-white: #ffffff;
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--chat--color-light: #f2f4f8;
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--chat--color-light-shade-50: #e6e9f1;
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--chat--color-light-shade-100: #c2c5cc;
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--chat--color-medium: #d2d4d9;
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--chat--color-dark: #101330;
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--chat--color-disabled: #777980;
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--chat--color-typing: #404040;
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--chat--spacing: 1rem;
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--chat--border-radius: 0.25rem;
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--chat--transition-duration: 0.15s;
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--chat--window--width: 400px;
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--chat--window--height: 600px;
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--chat--header-height: auto;
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--chat--header--padding: var(--chat--spacing);
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--chat--header--background: var(--chat--color-dark);
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--chat--header--color: var(--chat--color-light);
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--chat--header--border-top: none;
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--chat--header--border-bottom: none;
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--chat--header--border-bottom: none;
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--chat--header--border-bottom: none;
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--chat--heading--font-size: 2em;
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--chat--header--color: var(--chat--color-light);
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--chat--subtitle--font-size: inherit;
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--chat--subtitle--line-height: 1.8;
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--chat--textarea--height: 50px;
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--chat--message--font-size: 1rem;
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--chat--message--padding: var(--chat--spacing);
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--chat--message--border-radius: var(--chat--border-radius);
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--chat--message-line-height: 1.8;
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--chat--message--bot--background: var(--chat--color-white);
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--chat--message--bot--color: var(--chat--color-dark);
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--chat--message--bot--border: none;
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--chat--message--user--background: var(--chat--color-secondary);
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--chat--message--user--color: var(--chat--color-white);
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--chat--message--user--border: none;
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--chat--message--pre--background: rgba(0, 0, 0, 0.05);
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--chat--toggle--background: var(--chat--color-primary);
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--chat--toggle--hover--background: var(--chat--color-primary-shade-50);
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--chat--toggle--active--background: var(--chat--color-primary-shade-100);
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--chat--toggle--color: var(--chat--color-white);
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--chat--toggle--size: 64px;
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}
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```
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## Caveats
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### Fullscreen mode
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In fullscreen mode, the Chat window will take up the entire width and height of its target container. Make sure that the container has a set width and height.
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```css
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html,
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body,
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#n8n-chat {
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width: 100%;
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height: 100%;
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}
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```
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## License
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You can find the license information [here](https://github.com/n8n-io/n8n/blob/master/README.md#license)
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