nucleo000/conversation-layer
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Add HelloWorld debug agent and per-chat handler

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This commit is contained in:
josedario87
2025-06-04 21:51:05 -06:00
parent dec4922d42
commit 8d2e8f4854
14 changed files with 582 additions and 35 deletions
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7
README.md
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@@ -1,9 +1,9 @@
# Conversation Layer # Conversation Layer
This module contains the services that handle messaging for WhatsApp and the web chat interface. It is composed of three containers: This module contains the services that handle messaging for WhatsApp and the web chat interface. All source code is now written in **TypeScript**. It is composed of three containers:
- **openwa** – provides access to WhatsApp through the [open-wa](https://github.com/open-wa/wa-automate-nodejs) project. - **openwa** – provides access to WhatsApp through the [open-wa](https://github.com/open-wa/wa-automate-nodejs) project.
- **whatsapp-router** – receives webhook events from openwa and forwards messages to an external LLM agent. - **whatsapp-router** – receives webhook events from openwa and forwards messages to a conversation handler. Handlers can be configured per chat ID in `whatsapp-router/src/chatHandlers.ts`.
- **chat-ui** – simple web chat interface that also communicates with the LLM agent. - **chat-ui** – simple web chat interface that also communicates with the LLM agent.
All services can be launched together with `docker-compose`. All services can be launched together with `docker-compose`.
@@ -11,7 +11,8 @@ All services can be launched together with `docker-compose`.
## Usage ## Usage
1. Configure the URL of your LLM agent in `docker-compose.yml` (`LLM_AGENT_URL`). 1. Configure the URL of your LLM agent in `docker-compose.yml` (`LLM_AGENT_URL`).
2. Run: 2. Optionally edit `whatsapp-router/src/chatHandlers.ts` to map specific chat IDs to different handler URLs or local handlers. By default the chat ID `50498554225@c.us` is mapped to a built‑in *HelloWorld* agent that replies "hello world" for testing.
3. Run:
```bash ```bash
docker-compose up --build docker-compose up --build

3
chat-ui/Dockerfile
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@@ -3,5 +3,6 @@ WORKDIR /app
COPY package.json package-lock.json* ./ COPY package.json package-lock.json* ./
RUN npm install --production RUN npm install --production
COPY . . COPY . .
RUN npm run build
EXPOSE 3000 EXPOSE 3000
CMD ["node","server.js"] CMD ["node","dist/server.js"]

135
chat-ui/package-lock.json generated
View File

@@ -12,6 +12,120 @@
"axios": "^1.5.0", "axios": "^1.5.0",
"body-parser": "^1.20.2", "body-parser": "^1.20.2",
"express": "^4.18.2" "express": "^4.18.2"
},
"devDependencies": {
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"@types/node": "^20.11.19",
"typescript": "^5.4.5"
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"@types/node": "*"
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"dev": true,
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"dev": true,
"license": "MIT",
"dependencies": {
"@types/mime": "^1",
"@types/node": "*"
}
},
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"version": "1.15.7",
"resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.15.7.tgz",
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@@ -913,6 +1027,27 @@
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"dev": true,
"license": "Apache-2.0",
"bin": {
"tsc": "bin/tsc",
"tsserver": "bin/tsserver"
},
"engines": {
"node": ">=14.17"
}
},
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"license": "MIT"
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"node_modules/unpipe": { "node_modules/unpipe": {
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"resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz", "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",

12
chat-ui/package.json
View File

@@ -1,11 +1,21 @@
{ {
"name": "chat-ui", "name": "chat-ui",
"version": "1.0.0", "version": "1.0.0",
"main": "server.js", "main": "dist/server.js",
"license": "MIT", "license": "MIT",
"scripts": {
"build": "tsc",
"start": "node dist/server.js"
},
"dependencies": { "dependencies": {
"express": "^4.18.2", "express": "^4.18.2",
"axios": "^1.5.0", "axios": "^1.5.0",
"body-parser": "^1.20.2" "body-parser": "^1.20.2"
},
"devDependencies": {
"typescript": "^5.4.5",
"@types/express": "^4.17.21",
"@types/node": "^20.11.19",
"@types/body-parser": "^1.19.5"
} }
} }

16
chat-ui/server.js → chat-ui/src/server.ts
View File

@@ -1,16 +1,16 @@
const express = require('express'); import express, { Request, Response } from 'express';
const axios = require('axios'); import axios from 'axios';
const bodyParser = require('body-parser'); import bodyParser from 'body-parser';
const path = require('path'); import path from 'path';
const app = express(); const app = express();
const port = process.env.PORT || 3000; const port = Number(process.env.PORT) || 3000;
const agentUrl = process.env.LLM_AGENT_URL; const agentUrl = process.env.LLM_AGENT_URL as string | undefined;
app.use(bodyParser.json()); app.use(bodyParser.json());
app.use(express.static(path.join(__dirname, 'public'))); app.use(express.static(path.join(__dirname, 'public')));
app.post('/send', async (req, res) => { app.post('/send', async (req: Request, res: Response) => {
if (!agentUrl) { if (!agentUrl) {
return res.status(500).json({ error: 'LLM_AGENT_URL not configured' }); return res.status(500).json({ error: 'LLM_AGENT_URL not configured' });
} }
@@ -18,7 +18,7 @@ app.post('/send', async (req, res) => {
const { message } = req.body; const { message } = req.body;
const response = await axios.post(agentUrl, { message }); const response = await axios.post(agentUrl, { message });
res.json(response.data); res.json(response.data);
} catch (err) { } catch (err: any) {
console.error('Failed to forward message', err.message); console.error('Failed to forward message', err.message);
res.status(500).json({ error: 'Failed to communicate with agent' }); res.status(500).json({ error: 'Failed to communicate with agent' });
} }

12
chat-ui/tsconfig.json Normal file
View File

@@ -0,0 +1,12 @@
{
"compilerOptions": {
"target": "ES2019",
"module": "commonjs",
"outDir": "dist",
"rootDir": "src",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true
},
"include": ["src"]
}

3
whatsapp-router/Dockerfile
View File

@@ -3,5 +3,6 @@ WORKDIR /app
COPY package.json package-lock.json* ./ COPY package.json package-lock.json* ./
RUN npm install --production RUN npm install --production
COPY . . COPY . .
RUN npm run build
EXPOSE 3001 EXPOSE 3001
CMD ["node","index.js"] CMD ["node","dist/index.js"]

134
whatsapp-router/package-lock.json generated
View File

@@ -11,6 +11,119 @@
"dependencies": { "dependencies": {
"axios": "^1.5.0", "axios": "^1.5.0",
"express": "^4.18.2" "express": "^4.18.2"
},
"devDependencies": {
"@types/express": "^4.17.21",
"@types/node": "^20.11.19",
"typescript": "^5.4.5"
}
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"dev": true,
"license": "MIT",
"dependencies": {
"@types/connect": "*",
"@types/node": "*"
}
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"dev": true,
"license": "MIT"
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"dev": true,
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"dependencies": {
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"@types/node": "*"
}
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"@types/node": "*",
"@types/send": "*"
} }
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@@ -912,6 +1025,27 @@
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"license": "Apache-2.0",
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"tsc": "bin/tsc",
"tsserver": "bin/tsserver"
},
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}
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"license": "MIT"
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11
whatsapp-router/package.json
View File

@@ -1,10 +1,19 @@
{ {
"name": "whatsapp-router", "name": "whatsapp-router",
"version": "1.0.0", "version": "1.0.0",
"main": "index.js", "main": "dist/index.js",
"license": "MIT", "license": "MIT",
"scripts": {
"build": "tsc",
"start": "node dist/index.js"
},
"dependencies": { "dependencies": {
"express": "^4.18.2", "express": "^4.18.2",
"axios": "^1.5.0" "axios": "^1.5.0"
},
"devDependencies": {
"typescript": "^5.4.5",
"@types/node": "^20.11.19",
"@types/express": "^4.17.21"
} }
} }

15
whatsapp-router/src/chatHandlers.ts Normal file
View File

@@ -0,0 +1,15 @@
import { helloWorldAgent } from './helloAgent';
import { WhatsAppMessage } from './types';
export type Handler = string | ((msg: WhatsAppMessage | string) => Promise<string>);
export const chatHandlers: Record<string, Handler> = {
'50498554225@c.us': helloWorldAgent,
// Add other mappings like:
// '50496210031@c.us': 'http://llm-agent:8000'
};
export function getHandler(chatId: string | undefined, defaultUrl?: string): Handler | undefined {
if (!chatId) return defaultUrl;
return chatHandlers[chatId] || defaultUrl;
}

3
whatsapp-router/src/helloAgent.ts Normal file
View File

@@ -0,0 +1,3 @@
export async function helloWorldAgent(): Promise<string> {
return 'hello world';
}

58
whatsapp-router/index.js → whatsapp-router/src/index.ts
View File

@@ -1,19 +1,24 @@
const express = require('express'); import express from 'express';
const axios = require('axios'); import axios from 'axios';
import { WhatsAppMessage } from './types';
import { getHandler, Handler } from './chatHandlers';
const app = express(); const app = express();
const port = process.env.PORT || 3001; const port = Number(process.env.PORT) || 3001;
const agentUrl = process.env.LLM_AGENT_URL; const agentUrl = process.env.LLM_AGENT_URL as string | undefined;
const openWaUrl = process.env.OPEN_WA_URL; const openWaUrl = process.env.OPEN_WA_URL as string | undefined;
const config = { const config = {
API_URL: openWaUrl, API_URL: openWaUrl || '',
MAX_ATTEMPTS: parseInt(process.env.MAX_ATTEMPTS || '100', 100), MAX_ATTEMPTS: parseInt(process.env.MAX_ATTEMPTS || '100', 10),
RETRY_MS: parseInt(process.env.RETRY_MS || '2000', 10) RETRY_MS: parseInt(process.env.RETRY_MS || '2000', 10)
}; };
function log(level, ...args) { function log(level: keyof Console | 'info' | 'warn' | 'error' | 'debug', ...args: unknown[]) {
console[level] ? console[level](...args) : console.log(...args); const logger = (console as any)[level] as ((...args: unknown[]) => void) | undefined;
if (logger) logger(...args);
else console.log(...args);
} }
async function waitForGateway() { async function waitForGateway() {
@@ -41,10 +46,10 @@ async function clearWebhooks() {
log('info', `Removing ${hooks.length} webhooks…`); log('info', `Removing ${hooks.length} webhooks…`);
const results = await Promise.allSettled( const results = await Promise.allSettled(
hooks.map(h => axios.post(`${config.API_URL}/removeWebhook`, { args: { webhookId: h.id } })) hooks.map((h: any) => axios.post(`${config.API_URL}/removeWebhook`, { args: { webhookId: h.id } }))
); );
results.forEach((r, i) => { results.forEach((r: PromiseSettledResult<any>, i: number) => {
const id = hooks[i].id; const id = hooks[i].id;
if (r.status === 'fulfilled' && r.value?.data?.response === true) { if (r.status === 'fulfilled' && r.value?.data?.response === true) {
log('debug', `✔️ Removed webhook ${id}`); log('debug', `✔️ Removed webhook ${id}`);
@@ -53,9 +58,9 @@ async function clearWebhooks() {
} }
}); });
const ok = results.filter(r => r.status === 'fulfilled' && r.value?.data?.response === true).length; const ok = results.filter((r: PromiseSettledResult<any>) => r.status === 'fulfilled' && (r as PromiseFulfilledResult<any>).value?.data?.response === true).length;
log('info', `Cleanup OK (${ok}/${hooks.length} removed)`); log('info', `Cleanup OK (${ok}/${hooks.length} removed)`);
} catch (e) { } catch (e: any) {
log('error', 'Failed cleaning webhooks:', e.response?.data || e.message); log('error', 'Failed cleaning webhooks:', e.response?.data || e.message);
} }
} }
@@ -105,15 +110,28 @@ async function registerWebhook() {
app.use(express.json()); app.use(express.json());
app.post('/webhook', async (req, res) => { app.post('/webhook', async (req: express.Request, res: express.Response) => {
const { message, text, from } = req.body; const { message, text, from } = req.body as {
message?: WhatsAppMessage;
text?: string;
from?: string;
};
const incoming = message || text; const incoming = message || text;
try { try {
if (!incoming) return res.sendStatus(200); if (!incoming) return res.sendStatus(200);
const agentRes = await axios.post(agentUrl, { message: incoming }); if (!openWaUrl) throw new Error('Service URLs not configured');
const reply = agentRes.data.reply || agentRes.data; const chatId = (message && message.chatId) || from;
await axios.post(`${openWaUrl}/send-text`, { to: from, message: reply }); const handler = getHandler(chatId, agentUrl);
} catch (err) { if (!handler) throw new Error('No handler configured');
let reply: string;
if (typeof handler === 'string') {
const agentRes = await axios.post(handler, { message: incoming });
reply = agentRes.data.reply || agentRes.data;
} else {
reply = await handler(incoming);
}
await axios.post(`${openWaUrl}/sendText`, { args: { to: from, content: reply } });
} catch (err: any) {
console.error('Error processing message', err.message); console.error('Error processing message', err.message);
} }
res.sendStatus(200); res.sendStatus(200);
@@ -125,7 +143,7 @@ app.listen(port, async () => {
await waitForGateway(); await waitForGateway();
await clearWebhooks(); await clearWebhooks();
await registerWebhook(); await registerWebhook();
} catch (err) { } catch (err: any) {
log('error', 'Webhook setup failed:', err.message); log('error', 'Webhook setup failed:', err.message);
} }
}); });

194
whatsapp-router/src/types.ts Normal file
View File

@@ -0,0 +1,194 @@
export interface ProfilePicThumb {
eurl?: string;
id?: string;
img?: string;
imgFull?: string;
tag?: string;
}
export interface Sender {
id: string;
name: string;
shortName: string;
pushname: string;
type: string;
isBusiness: boolean;
isEnterprise: boolean;
isSmb: boolean;
isContactSyncCompleted: number;
disappearingModeDuration: number;
disappearingModeSettingTimestamp: number;
textStatusLastUpdateTime: number;
syncToAddressbook: boolean;
formattedName: string;
isMe: boolean;
isMyContact: boolean;
isPSA: boolean;
isUser: boolean;
status?: string;
isVerified: boolean;
isWAContact: boolean;
profilePicThumbObj?: ProfilePicThumb;
msgs: any;
}
export interface Contact {
id: string;
name: string;
shortName: string;
pushname: string;
type: string;
isBusiness: boolean;
isEnterprise: boolean;
isSmb: boolean;
isContactSyncCompleted: number;
disappearingModeDuration: number;
disappearingModeSettingTimestamp: number;
textStatusLastUpdateTime: number;
syncToAddressbook: boolean;
formattedName: string;
isMe: boolean;
isMyContact: boolean;
isPSA: boolean;
isUser: boolean;
isVerified: boolean;
isWAContact: boolean;
profilePicThumbObj?: Partial<ProfilePicThumb>;
msgs: any;
}
export interface Chat {
id: string;
pendingMsgs: boolean;
lastReceivedKey?: {
fromMe: boolean;
remote: string;
id: string;
_serialized: string;
};
t: number;
unreadCount: number;
unreadDividerOffset: number;
archive: boolean;
isReadOnly: boolean;
isLocked: boolean;
muteExpiration: number;
isAutoMuted: boolean;
name: string;
notSpam: boolean;
pin: number;
ephemeralDuration: number;
ephemeralSettingTimestamp: number;
disappearingModeInitiator: string;
disappearingModeTrigger: string;
createdLocally: boolean;
unreadMentionsOfMe: any[];
unreadMentionCount: number;
hasUnreadMention: boolean;
archiveAtMentionViewedInDrawer: boolean;
hasChatBeenOpened: boolean;
tcToken: Record<string, unknown>;
tcTokenTimestamp: number;
tcTokenSenderTimestamp: number;
endOfHistoryTransferType: number;
pendingInitialLoading: boolean;
chatlistPreview?: any;
unreadEditTimestampMs: number;
celebrationAnimationLastPlayed: number;
hasRequestedWelcomeMsg: boolean;
msgs: any;
canSend: boolean;
isGroup: boolean;
pic?: string;
formattedTitle: string;
contact: Contact;
groupMetadata: any;
presence?: {
id: string;
chatstates: any[];
};
isOnline: boolean;
participantsCount: number;
}
export interface WhatsAppMessage {
id: string;
viewed: boolean;
body: string;
type: string;
t: number;
notifyName: string;
from: string;
to: string;
author: string | null;
invis: boolean;
isNewMsg: boolean;
star: boolean;
kicNotified: boolean;
recvFresh: boolean;
isFromTemplate: boolean;
thumbnail?: string;
pollInvalidated: boolean;
isSentCagPollCreation: boolean;
latestEditMsgKey: any;
latestEditSenderTimestampMs: any;
mentionedJidList: any[];
groupMentions: any[];
isEventCanceled: boolean;
eventInvalidated: boolean;
isVcardOverMmsDocument: boolean;
labels: any[];
hasReaction: boolean;
ephemeralDuration: number;
ephemeralSettingTimestamp: number;
disappearingModeInitiator: string;
disappearingModeTrigger: string;
viewMode: string;
productHeaderImageRejected: boolean;
lastPlaybackProgress: number;
isDynamicReplyButtonsMsg: boolean;
isCarouselCard: boolean;
parentMsgId: any;
callSilenceReason: any;
isVideoCall: boolean;
callDuration: any;
callParticipants: any;
isMdHistoryMsg: boolean;
stickerSentTs: number;
isAvatar: boolean;
lastUpdateFromServerTs: number;
invokedBotWid: any;
bizBotType: any;
botResponseTargetId: any;
botPluginType: any;
botPluginReferenceIndex: any;
botPluginSearchProvider: any;
botPluginSearchUrl: any;
botPluginSearchQuery: any;
botPluginMaybeParent: boolean;
botReelPluginThumbnailCdnUrl: any;
botMessageDisclaimerText: any;
botMsgBodyType: any;
reportingTokenInfo: any;
requiresDirectConnection: boolean;
bizContentPlaceholderType: any;
hostedBizEncStateMismatch: boolean;
senderOrRecipientAccountTypeHosted: boolean;
placeholderCreatedWhenAccountIsHosted: boolean;
device: number;
local: boolean;
fromMe: boolean;
mId: string;
sender: Sender;
senderId: any;
timestamp: number;
content: string;
isGroupMsg: boolean;
isQuotedMsgAvailable: boolean;
isMedia: boolean;
chat: Chat;
isOnline: boolean;
chatId: string;
mediaData: Record<string, unknown>;
text: string;
}

14
whatsapp-router/tsconfig.json Normal file
View File

@@ -0,0 +1,14 @@
{
"compilerOptions": {
"target": "ES2020",
"module": "commonjs",
"outDir": "dist",
"rootDir": "src",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"lib": ["es2020"],
"moduleResolution": "node"
},
"include": ["src"]
}