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feat: Respond to chat and wait for response (#12546)

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Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>
Co-authored-by: Shireen Missi <94372015+ShireenMissi@users.noreply.github.com>
This commit is contained in:
Michael Kret
2025-07-24 11:48:40 +03:00
committed by GitHub
parent e61b25c53f
commit a98ed2ca49
47 changed files with 3441 additions and 71 deletions
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122
packages/@n8n/nodes-langchain/nodes/trigger/ChatTrigger/ChatTrigger.node.ts
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@@ -35,27 +35,30 @@ const allowedFileMimeTypeOption: INodeProperties = {
'Allowed file types for upload. Comma-separated list of <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types" target="_blank">MIME types</a>.',
};
const responseModeOptions = [
{
name: 'When Last Node Finishes',
value: 'lastNode',
description: 'Returns data of the last-executed node',
},
{
name: "Using 'Respond to Webhook' Node",
value: 'responseNode',
description: 'Response defined in that node',
},
];
const respondToWebhookResponseMode = {
name: "Using 'Respond to Webhook' Node",
value: 'responseNode',
description: 'Response defined in that node',
};
const responseModeWithStreamingOptions = [
...responseModeOptions,
{
name: 'Streaming Response',
value: 'streaming',
description: 'Streaming response from specified nodes (e.g. Agents)',
},
];
const lastNodeResponseMode = {
name: 'When Last Node Finishes',
value: 'lastNode',
description: 'Returns data of the last-executed node',
};
const streamingResponseMode = {
name: 'Streaming Response',
value: 'streaming',
description: 'Streaming response from specified nodes (e.g. Agents)',
};
const respondNodesResponseMode = {
name: 'Using Response Nodes',
value: 'responseNodes',
description:
"Send responses to the chat by using 'Respond to Chat' or 'Respond to Webhook' nodes",
};
const commonOptionsFields: INodeProperties[] = [
// CORS parameters are only valid for when chat is used in hosted or webhook mode
@@ -209,9 +212,8 @@ export class ChatTrigger extends Node {
icon: 'fa:comments',
iconColor: 'black',
group: ['trigger'],
version: [1, 1.1, 1.2],
// Keep the default version as 1.1 to avoid releasing streaming in broken state
defaultVersion: 1.1,
version: [1, 1.1, 1.2, 1.3],
defaultVersion: 1.3,
description: 'Runs the workflow when an n8n generated webchat is submitted',
defaults: {
name: 'When chat message received',
@@ -390,7 +392,7 @@ export class ChatTrigger extends Node {
displayOptions: {
show: {
public: [false],
'@version': [{ _cnd: { gte: 1.1 } }],
'@version': [1, 1.1],
},
},
placeholder: 'Add Field',
@@ -417,13 +419,13 @@ export class ChatTrigger extends Node {
displayName: 'Response Mode',
name: 'responseMode',
type: 'options',
options: responseModeOptions,
options: [lastNodeResponseMode, respondToWebhookResponseMode],
default: 'lastNode',
description: 'When and how to respond to the webhook',
},
],
},
// Options for version 1.2+ (with streaming)
// Options for version 1.2 (with streaming)
{
displayName: 'Options',
name: 'options',
@@ -432,7 +434,7 @@ export class ChatTrigger extends Node {
show: {
mode: ['hostedChat', 'webhook'],
public: [true],
'@version': [{ _cnd: { gte: 1.2 } }],
'@version': [1.2],
},
},
placeholder: 'Add Field',
@@ -443,12 +445,72 @@ export class ChatTrigger extends Node {
displayName: 'Response Mode',
name: 'responseMode',
type: 'options',
options: responseModeWithStreamingOptions,
options: [lastNodeResponseMode, respondToWebhookResponseMode, streamingResponseMode],
default: 'lastNode',
description: 'When and how to respond to the webhook',
},
],
},
{
displayName: 'Options',
name: 'options',
type: 'collection',
displayOptions: {
show: {
public: [false],
'@version': [{ _cnd: { gte: 1.3 } }],
},
},
placeholder: 'Add Field',
default: {},
options: [
allowFileUploadsOption,
allowedFileMimeTypeOption,
{
displayName: 'Response Mode',
name: 'responseMode',
type: 'options',
options: [lastNodeResponseMode, respondNodesResponseMode],
default: 'lastNode',
description: 'When and how to respond to the chat',
},
],
},
{
displayName: 'Options',
name: 'options',
type: 'collection',
displayOptions: {
show: {
mode: ['hostedChat', 'webhook'],
public: [true],
'@version': [{ _cnd: { gte: 1.3 } }],
},
},
placeholder: 'Add Field',
default: {},
options: [
...commonOptionsFields,
{
displayName: 'Response Mode',
name: 'responseMode',
type: 'options',
options: [lastNodeResponseMode, respondToWebhookResponseMode],
default: 'lastNode',
description: 'When and how to respond to the chat',
displayOptions: { show: { '/mode': ['webhook'] } },
},
{
displayName: 'Response Mode',
name: 'responseMode',
type: 'options',
options: [lastNodeResponseMode, respondNodesResponseMode],
default: 'lastNode',
description: 'When and how to respond to the webhook',
displayOptions: { show: { '/mode': ['hostedChat'] } },
},
],
},
],
};
@@ -536,10 +598,10 @@ export class ChatTrigger extends Node {
allowFileUploads?: boolean;
allowedFilesMimeTypes?: string;
customCss?: string;
responseMode?: string;
};
const responseMode = ctx.getNodeParameter('options.responseMode', 'lastNode') as string;
const enableStreaming = responseMode === 'streaming';
const enableStreaming = options.responseMode === 'streaming';
const req = ctx.getRequestObject();
const webhookName = ctx.getWebhookName();