diff --git a/.env.example b/.env.example index 18a38ee..5149de4 100644 --- a/.env.example +++ b/.env.example @@ -1,6 +1,8 @@ +TWILIO_ACCOUNT_SID="YOUR-ACCOUNT-SID" +TWILIO_AUTH_TOKEN="YOUR-AUTH-TOKEN" DEEPGRAM_API_KEY="YOUR-API-KEY" XI_API_KEY="YOUR-API-KEY" # Available models at a signed GET request to /v1/models XI_MODEL_ID="eleven_monolingual_v1" VOICE_ID="YOUR-VOICE-ID" -SERVER="yourdomain.ngrok.io" \ No newline at end of file +SERVER="yourdomain.ngrok.io" diff --git a/README.md b/README.md index 3d14f7c..3ac35b7 100644 --- a/README.md +++ b/README.md @@ -1,3 +1,5 @@ +> 💡 A more complete & updated version of this demo is available in a [Twilio Open Source Repo](https://github.com/twilio-labs/call-gpt). + # Generative AI Phone Calling Generative AI is producing a bunch of fun new models for us devs to poke at. Did you know you can use these over the phone? diff --git a/config.json b/config.json new file mode 100644 index 0000000..f2c7197 --- /dev/null +++ b/config.json @@ -0,0 +1,7 @@ +{ + "port":3000, + "system_prompt": "You are a monster that lives in Denver, Colorado. Your current body looks like a white and gray house. You have two eyes, large teeth, and a red tongue. You are scary but in a silly way. Your response should pithy and no more than 16 words.", + "greetings_prompt": "Come up with a pithy greeting", + "goodbye_prompt": "Come up with a pithy goodby message. Assume you may be cutting the user off. You can be a little rude", + "user_chat_count":6 +} \ No newline at end of file diff --git a/package-lock.json b/package-lock.json index 94c2442..b7ccfeb 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,18 +1,20 @@ { - "name": "deepgram-elevenlabs", - "version": "1.0.0", + "name": "genai-phone", + "version": "1.1.0", "lockfileVersion": 3, "requires": true, "packages": { "": { - "name": "deepgram-elevenlabs", - "version": "1.0.0", - "license": "ISC", + "name": "genai-phone", + "version": "1.1.0", + "license": "MIT", "dependencies": { "@deepgram/sdk": "^2.4.0", "dotenv": "^16.3.1", "express": "^4.18.2", "express-ws": "^5.0.2", + "openai": "^4.12.4", + "twilio": "^4.19.0", "wavefile": "^11.0.0" } }, @@ -47,6 +49,31 @@ } } }, + "node_modules/@types/node": { + "version": "18.18.6", + "resolved": "https://registry.npmjs.org/@types/node/-/node-18.18.6.tgz", + "integrity": "sha512-wf3Vz+jCmOQ2HV1YUJuCWdL64adYxumkrxtc+H1VUQlnQI04+5HtH+qZCOE21lBE7gIrt+CwX2Wv8Acrw5Ak6w==" + }, + "node_modules/@types/node-fetch": { + "version": "2.6.7", + "resolved": "https://registry.npmjs.org/@types/node-fetch/-/node-fetch-2.6.7.tgz", + "integrity": "sha512-lX17GZVpJ/fuCjguZ5b3TjEbSENxmEk1B2z02yoXSK9WMEWRivhdSY73wWMn6bpcCDAOh6qAdktpKHIlkDk2lg==", + "dependencies": { + "@types/node": "*", + "form-data": "^4.0.0" + } + }, + "node_modules/abort-controller": { + "version": "3.0.0", + "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz", + "integrity": "sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg==", + "dependencies": { + "event-target-shim": "^5.0.0" + }, + "engines": { + "node": ">=6.5" + } + }, "node_modules/accepts": { "version": "1.3.8", "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz", @@ -59,11 +86,72 @@ "node": ">= 0.6" } }, + "node_modules/agent-base": { + "version": "6.0.2", + "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz", + "integrity": 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"sha512-Eux0i2QdDYKbdbA6AM6xE4m6ZTZr4G4xF9kahI2ukSEMCzwce2eX9WlTI5J3s+NU7hpasFsr8hWIONae7LluAQ==", + "engines": { + "node": ">=6.0" + } + }, + "node_modules/yallist": { + "version": "4.0.0", + "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz", + "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==" } } } diff --git a/package.json b/package.json index 45ecdfc..c02dfd2 100644 --- a/package.json +++ b/package.json @@ -14,6 +14,8 @@ "dotenv": "^16.3.1", "express": "^4.18.2", "express-ws": "^5.0.2", + "openai": "^4.12.4", + "twilio": "^4.19.0", "wavefile": "^11.0.0" } } diff --git a/server.js b/server.js index 88f0825..fa30ab8 100644 --- a/server.js +++ b/server.js @@ -1,15 +1,28 @@ require("dotenv").config(); +const CONFIG = require("./config.json"); + +// Set up express const express = require("express"); const ExpressWs = require("express-ws"); - -const { TextToSpeechService } = require("./tts-service"); -const { TranscriptionService } = require("./transcription-service"); - const app = express(); ExpressWs(app); -const PORT = 3000; +// Set up Twilio +const accountSid = process.env.TWILIO_ACCOUNT_SID; +const authToken = process.env.TWILIO_AUTH_TOKEN; +const twilioClient = require('twilio')(accountSid, authToken); + +// Set up OpenAI +const { OpenAI } = require("openai"); +const openai = new OpenAI({ + apiKey: process.env["OPENAI_API_KEY"], +}); + +// Set up our services +const { TextToSpeechService } = require("./tts-service"); +const { TranscriptionService } = require("./transcription-service"); +// Set route for initializing the call. This is the route that Twilio will hit. app.post("/incoming", (req, res) => { res.status(200); res.type("text/xml"); @@ -22,33 +35,85 @@ app.post("/incoming", (req, res) => { `); }); +// Set up the websocket route for the media stream app.ws("/connection", (ws, req) => { + // Log errors ws.on("error", console.error); + // Filled in from start message let streamSid; + let callSid; + + // Initialize variables + let hangup = false; + let userChatCount = 0; + const messages = [ + { + role: "system", + content:CONFIG.system_prompt + }, + { role: "user", content: CONFIG.greetings_prompt }, + ]; + // Set up services const transcriptionService = new TranscriptionService(); const ttsService = new TextToSpeechService({}); // Incoming from MediaStream - ws.on("message", function message(data) { + ws.on("message", async function message(data) { const msg = JSON.parse(data); + + // If its the start of the stream... if (msg.event === "start") { streamSid = msg.start.streamSid; - console.log(`Starting Media Stream for ${streamSid}`); + callSid = msg.start.callSid; + console.log(`Starting Media Stream for ${streamSid} on call ${callSid}`); + // Generate, store, and say a greetings message + const chatCompletion = await chat(messages); + messages.push(chatCompletion); + ttsService.generate(chatCompletion.content); + + // If its a media event, meaning audio has been sent... } else if (msg.event === "media") { + // Send the audio to be played on the stream transcriptionService.send(msg.media.payload); + + // If its a mark event, meaning the audio has ended... } else if (msg.event === "mark") { const label = msg.mark.name; - console.log(`Media completed mark (${msg.sequenceNumber}): ${label}`) + console.log(`Media completed mark (${msg.sequenceNumber}): ${label}`); + // If the hangup flag is set, end call after saying message + if (hangup){ + twilioClient.calls(callSid) + .update({status: 'completed'}) + .then(call => console.log(call.to)); + } + // Generate goodby and set call to end after convo limit reached + else if (userChatCount >= CONFIG.user_chat_count){ + console.log("Add goodbye prompt"); + // The next time "mark" is sent end the call + hangup = true; + // Add goodbye prompt to the stack, generate response, and say it + messages.push({role: "user", content: CONFIG.goodbye_prompt}); + const chatCompletion = await chat(messages); + ttsService.generate(chatCompletion.content); + } } }); - transcriptionService.on("transcription", (text) => { + // When the transcription service receives a transcription of the audio + transcriptionService.on("transcription", async (text) => { console.log(`Received transcription: ${text}`); - ttsService.generate(text); + // Add user message to the message stack & increment counter + messages.push({ role: "user", content: text }); + userChatCount++; + // Generate response, add to message stack, and say it + const chatCompletion = await chat(messages); + messages.push(chatCompletion); + ttsService.generate(chatCompletion.content); }); + // When the tts service has generated audio ttsService.on("speech", (audio, label) => { console.log(`Sending audio to Twilio ${audio.length} b64 characters`); ws.send( @@ -66,12 +131,22 @@ app.ws("/connection", (ws, req) => { streamSid, event: "mark", mark: { - name: label - } + name: label, + }, }) - ) + ); }); }); -app.listen(PORT); -console.log(`Server running on port ${PORT}`); +// OpenAI chat function +async function chat(messages) { + const chatCompletion = await openai.chat.completions.create({ + messages: messages, + model: "gpt-3.5-turbo", + }); + return chatCompletion.choices[0].message; +} + +// Start the server +app.listen(CONFIG.port || 3000); +console.log(`Server running on port ${CONFIG.port || 3000}`);