536 lines
17 KiB
TypeScript
536 lines
17 KiB
TypeScript
import * as fs from "fs";
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import * as path from "path";
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import * as readline from "readline";
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// Load .env variables
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const envPath = path.join(__dirname, "../.env");
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if (fs.existsSync(envPath)) {
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const envContent = fs.readFileSync(envPath, "utf8");
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for (const line of envContent.split("\n")) {
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const match = line.match(/^\s*([\w.-]+)\s*=\s*(.*)\s*$/);
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if (match) {
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const key = match[1];
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let value = match[2].trim();
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if (value.startsWith('"') && value.endsWith('"')) value = value.slice(1, -1);
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else if (value.startsWith("'") && value.endsWith("'")) value = value.slice(1, -1);
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process.env[key] = value;
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}
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}
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}
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const N8N_HOST = process.env.N8N_HOST || "https://n8n.gaboggamer.online";
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const N8N_API_KEY = process.env.N8N_API_KEY;
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const SUPABASE_URL = process.env.NEXT_PUBLIC_SUPABASE_URL;
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const SUPABASE_SECRET_KEY = process.env.SUPABASE_SECRET_KEY;
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if (!N8N_API_KEY) {
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console.error("Error: N8N_API_KEY is not defined in .env");
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process.exit(1);
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}
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// Interactive prompt helper
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function askQuestion(query: string): Promise<string> {
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const rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout,
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});
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return new Promise((resolve) =>
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rl.question(query, (ans) => {
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rl.close();
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resolve(ans.trim());
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})
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);
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}
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async function n8nRequest(endpoint: string, method: string = "GET", body?: any) {
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const response = await fetch(`${N8N_HOST}${endpoint}`, {
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method,
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headers: {
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"X-N8N-API-KEY": N8N_API_KEY!,
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"Content-Type": "application/json",
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},
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body: body ? JSON.stringify(body) : undefined,
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});
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if (!response.ok) {
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const text = await response.text();
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throw new Error(`n8n API request failed: ${response.status} ${response.statusText} - ${text}`);
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}
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return response.json();
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}
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async function getOrCreateCredential(name: string, type: string, data: any) {
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try {
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const credsList = await n8nRequest("/api/v1/credentials");
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const existingCred = credsList.data.find((c: any) => c.name === name && c.type === type);
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if (existingCred) {
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console.log(`Reusing existing credential: ${name} (ID: ${existingCred.id})`);
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return existingCred.id;
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} else {
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const newCred = await n8nRequest("/api/v1/credentials", "POST", {
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name,
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type,
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data,
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});
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console.log(`Created new credential: ${name} (ID: ${newCred.id})`);
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return newCred.id;
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}
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} catch (err: any) {
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console.error(`Error setting up credential ${name}:`, err.message);
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process.exit(1);
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}
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}
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interface ProviderConfig {
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nodeType: string;
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credentialType: string;
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credentialData: any;
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nodeParameters: any;
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}
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function getProviderConfig(provider: string, apiKey: string, modelName: string): ProviderConfig {
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switch (provider) {
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case "1": // Deepseek (Native)
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return {
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nodeType: "@n8n/n8n-nodes-langchain.lmChatDeepSeek",
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credentialType: "deepSeekApi",
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credentialData: {
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apiKey,
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allowedHttpRequestDomains: "none",
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},
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nodeParameters: {
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model: modelName || "deepseek-chat",
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options: {},
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},
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};
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case "2": // OpenAI
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return {
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nodeType: "@n8n/n8n-nodes-langchain.lmChatOpenAi",
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credentialType: "openAiApi",
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credentialData: {
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apiKey,
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header: false,
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allowedHttpRequestDomains: "none",
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},
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nodeParameters: {
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model: modelName || "gpt-4o-mini",
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options: {},
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},
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};
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case "3": // Google Gemini
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return {
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nodeType: "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
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credentialType: "googlePalmApi",
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credentialData: {
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apiKey,
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host: "https://generativelanguage.googleapis.com",
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allowedHttpRequestDomains: "none",
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},
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nodeParameters: {
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model: modelName || "gemini-1.5-flash",
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options: {},
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},
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};
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case "4": // Anthropic
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return {
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nodeType: "@n8n/n8n-nodes-langchain.lmChatAnthropic",
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credentialType: "anthropicApi",
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credentialData: {
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apiKey,
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allowedHttpRequestDomains: "none",
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},
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nodeParameters: {
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model: modelName || "claude-3-5-sonnet-latest",
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options: {},
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},
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};
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default:
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throw new Error("Invalid provider chosen");
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}
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}
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async function main() {
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console.log("\n==================================================");
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console.log("Welcome to interactive n8n workflow deployment");
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console.log("==================================================");
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// 1. Ask for Primary Provider
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console.log("\nSelect Primary LLM Provider:");
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console.log("1. Deepseek (Native Node)");
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console.log("2. OpenAI (Standard)");
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console.log("3. Google Gemini");
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console.log("4. Anthropic");
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const primaryProviderChoice = (await askQuestion("Enter choice (1-4) [default: 3]: ")) || "3";
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let defaultModel = "gemini-1.5-flash";
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if (primaryProviderChoice === "1") defaultModel = "deepseek-chat";
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else if (primaryProviderChoice === "2") defaultModel = "gpt-4o-mini";
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else if (primaryProviderChoice === "4") defaultModel = "claude-3-5-sonnet-latest";
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const primaryModelName = (await askQuestion(`Enter primary model name [default: ${defaultModel}]: `)) || defaultModel;
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let defaultKey = "";
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if (primaryProviderChoice === "1") defaultKey = process.env.DEEPSEEK_API_KEY || "";
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else if (primaryProviderChoice === "3") defaultKey = process.env.GEMINI_API_KEY || "";
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const primaryApiKey = (await askQuestion(`Enter API key [default: ${defaultKey ? "Loaded from .env" : "None"}]: `)) || defaultKey;
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if (!primaryApiKey) {
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console.error("Primary API Key is required.");
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process.exit(1);
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}
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// 2. Ask for Fallback Provider
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const configureFallback = ((await askQuestion("\nDo you want to configure a Fallback LLM Model? (y/n) [default: n]: ")) || "n").toLowerCase() === "y";
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let fallbackProviderChoice = "";
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let fallbackModelName = "";
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let fallbackApiKey = "";
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if (configureFallback) {
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console.log("\nSelect Fallback LLM Provider:");
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console.log("1. Deepseek (Native Node)");
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console.log("2. OpenAI (Standard)");
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console.log("3. Google Gemini");
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console.log("4. Anthropic");
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fallbackProviderChoice = (await askQuestion("Enter choice (1-4) [default: 1]: ")) || "1";
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let defaultFallbackModel = "deepseek-chat";
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if (fallbackProviderChoice === "2") defaultFallbackModel = "gpt-4o-mini";
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else if (fallbackProviderChoice === "3") defaultFallbackModel = "gemini-1.5-flash";
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else if (fallbackProviderChoice === "4") defaultFallbackModel = "claude-3-5-sonnet-latest";
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fallbackModelName = (await askQuestion(`Enter fallback model name [default: ${defaultFallbackModel}]: `)) || defaultFallbackModel;
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let defaultFallbackKey = "";
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if (fallbackProviderChoice === "1") defaultFallbackKey = process.env.DEEPSEEK_API_KEY || "";
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else if (fallbackProviderChoice === "3") defaultFallbackKey = process.env.GEMINI_API_KEY || "";
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fallbackApiKey = (await askQuestion(`Enter fallback API key [default: ${defaultFallbackKey ? "Loaded from .env" : "None"}]: `)) || defaultFallbackKey;
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if (!fallbackApiKey) {
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console.error("Fallback API Key is required.");
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process.exit(1);
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}
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}
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console.log("\nDeploying credentials to n8n...");
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const supabaseCredId = await getOrCreateCredential("Semillero2_Supabase_V3", "supabaseApi", {
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host: SUPABASE_URL,
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serviceRole: SUPABASE_SECRET_KEY,
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allowedHttpRequestDomains: "none",
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});
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const primaryConfig = getProviderConfig(primaryProviderChoice, primaryApiKey, primaryModelName);
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const primaryCredId = await getOrCreateCredential(
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`Semillero2_Primary_${primaryConfig.credentialType}`,
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primaryConfig.credentialType,
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primaryConfig.credentialData
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);
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let fallbackConfig: ProviderConfig | null = null;
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let fallbackCredId = "";
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if (configureFallback) {
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fallbackConfig = getProviderConfig(fallbackProviderChoice, fallbackApiKey, fallbackModelName);
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fallbackCredId = await getOrCreateCredential(
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`Semillero2_Fallback_${fallbackConfig.credentialType}`,
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fallbackConfig.credentialType,
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fallbackConfig.credentialData
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);
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}
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// 3. Define workflow nodes dynamically
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console.log("\nBuilding workflow nodes...");
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const webhookTriggerNode = {
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parameters: {
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httpMethod: "POST",
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path: "evaluate-candidate",
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responseMode: "responseNode",
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options: {},
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},
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id: "webhook-trigger",
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name: "Webhook Trigger",
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type: "n8n-nodes-base.webhook",
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typeVersion: 1.1,
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position: [100, 300],
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};
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const primaryChainNode = {
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parameters: {
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promptType: "define", // Correct underlying value for manually defining prompt!
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hasOutputParser: true, // Enforce "Require Specific Output Format"
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needsFallback: configureFallback, // True underlying parameter to enable Fallback Model in v1.8+
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enableFallbackModel: configureFallback, // True underlying key to enable fallback model (backward compatibility)
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hasFallbackModel: configureFallback, // Secondary key for fallback model (safeguard)
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text: "={{ $('Webhook Trigger').item.json.body.text }}",
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systemMessage: "You are an AI recruitment assistant evaluating a candidate's CV for a job vacancy. Analyze the candidate's CV text. You MUST respond with a raw JSON object containing exactly these five keys:\n- summary: a brief candidate summary (max 3 sentences).\n- classification: 'Qualified', 'Unqualified', or 'Review'.\n- suggestions: an array of recommendations for next steps (e.g. ['Schedule interview', 'Reject', 'Verify references']).\n- riskLevel: 'Low', 'Medium', or 'High'.\n- ai_score: a number between 0 and 100 representing general suitability.\n\nDo not include markdown code blocks or any text outside the JSON.",
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},
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id: "llm-chain-primary",
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name: "LLM Chain Evaluation (Primary)",
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type: "@n8n/n8n-nodes-langchain.chainLlm",
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typeVersion: 1.9,
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position: [400, 300],
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};
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const primaryModelNode = {
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parameters: primaryConfig.nodeParameters,
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id: "primary-model",
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name: "Primary Chat Model",
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type: primaryConfig.nodeType,
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typeVersion: 1,
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position: [300, 480],
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credentials: {
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[primaryConfig.credentialType]: {
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id: primaryCredId,
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name: `Semillero2_Primary_${primaryConfig.credentialType}`,
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},
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},
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};
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const jsonParserNode = {
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parameters: {
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jsonSchema: "{\n \"type\": \"object\",\n \"properties\": {\n \"summary\": {\n \"type\": \"string\"\n },\n \"classification\": {\n \"type\": \"string\",\n \"enum\": [\"Qualified\", \"Unqualified\", \"Review\"]\n },\n \"suggestions\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"string\"\n }\n },\n \"riskLevel\": {\n \"type\": \"string\",\n \"enum\": [\"Low\", \"Medium\", \"High\"]\n },\n \"ai_score\": {\n \"type\": \"number\"\n }\n },\n \"required\": [\"summary\", \"classification\", \"suggestions\", \"riskLevel\", \"ai_score\"]\n}",
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},
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id: "json-parser",
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name: "Structured Output Parser",
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type: "@n8n/n8n-nodes-langchain.outputParserStructured",
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typeVersion: 1,
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position: [430, 480],
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};
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// Replace Code node with a native Edit Fields (Set) node to avoid code blocks
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const setNode = {
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parameters: {
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assignments: {
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assignments: [
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{
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name: "candidate_id",
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value: "={{ $('Webhook Trigger').item.json.body.candidateId }}",
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type: "string",
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},
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{
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name: "interview_id",
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value: "={{ $('Webhook Trigger').item.json.body.interviewId }}",
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type: "string",
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},
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{
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name: "ai_score",
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value: "={{ $json.ai_score }}",
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type: "number",
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},
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{
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name: "evaluation",
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value: "={{ { summary: $json.summary, classification: $json.classification, suggestions: $json.suggestions, riskLevel: $json.riskLevel } }}",
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type: "object",
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},
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],
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},
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options: {
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includeOtherFields: false, // Drop other fields to cleanly match schema
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},
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},
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id: "format-data",
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name: "Format Evaluation Data",
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type: "n8n-nodes-base.set",
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typeVersion: 3,
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position: [700, 300],
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};
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const supabaseInsertNode = {
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parameters: {
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operation: "insert",
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table: "scores",
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options: {},
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},
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id: "supabase-insert",
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name: "Insert Score to Supabase",
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type: "n8n-nodes-base.supabase",
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typeVersion: 1,
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position: [900, 300],
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credentials: {
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supabaseApi: {
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id: supabaseCredId,
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name: "Semillero2_Supabase_V3",
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},
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},
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};
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const respondWebhookNode = {
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parameters: {
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options: {},
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},
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id: "respond-webhook",
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name: "Respond to Webhook",
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type: "n8n-nodes-base.respondToWebhook",
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typeVersion: 1.1,
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position: [1100, 300],
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};
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const wNodes: any[] = [
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webhookTriggerNode,
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primaryChainNode,
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primaryModelNode,
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jsonParserNode,
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setNode,
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supabaseInsertNode,
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respondWebhookNode,
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];
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const wConnections: any = {
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"Webhook Trigger": {
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main: [
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[
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{
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node: "LLM Chain Evaluation (Primary)",
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type: "main",
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index: 0,
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},
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],
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],
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},
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"Primary Chat Model": {
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ai_languageModel: [
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[
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{
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node: "LLM Chain Evaluation (Primary)",
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type: "ai_languageModel",
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index: 0,
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},
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],
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],
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},
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"Structured Output Parser": {
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outputParser: [
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[
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{
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node: "LLM Chain Evaluation (Primary)",
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type: "ai_outputParser", // Correct destination port type!
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index: 0,
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},
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],
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],
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},
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"LLM Chain Evaluation (Primary)": {
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main: [
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[
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{
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node: "Format Evaluation Data",
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type: "main",
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index: 0,
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},
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],
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],
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},
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"Format Evaluation Data": {
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main: [
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[
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{
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node: "Insert Score to Supabase",
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type: "main",
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index: 0,
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},
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],
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],
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},
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"Insert Score to Supabase": {
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main: [
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[
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{
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node: "Respond to Webhook",
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type: "main",
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index: 0,
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},
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],
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],
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},
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};
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if (configureFallback && fallbackConfig) {
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console.log("Adding Fallback Chat Model...");
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const fallbackModelNode = {
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parameters: fallbackConfig.nodeParameters,
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id: "fallback-model",
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name: "Fallback Chat Model",
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type: fallbackConfig.nodeType,
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typeVersion: 1,
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position: [560, 480],
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credentials: {
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[fallbackConfig.credentialType]: {
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id: fallbackCredId,
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name: `Semillero2_Fallback_${fallbackConfig.credentialType}`,
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},
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},
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};
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wNodes.push(fallbackModelNode);
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// Connect fallback model directly: source port is ai_languageModel, target port is ai_fallbackModel!
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wConnections["Fallback Chat Model"] = {
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ai_languageModel: [
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[
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{
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node: "LLM Chain Evaluation (Primary)",
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type: "ai_fallbackModel",
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index: 0,
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},
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],
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],
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};
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}
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// Define complete workflow object
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const workflowDefinition = {
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name: "Semillero2: End-to-End Candidate Evaluation",
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settings: {},
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nodes: wNodes,
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connections: wConnections,
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};
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console.log("\nDeploying workflow to n8n...");
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const workflowsList = await n8nRequest("/api/v1/workflows");
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const existingWf = workflowsList.data.find(
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(w: any) => w.name === "Semillero2: End-to-End Candidate Evaluation"
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);
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let deployResult;
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if (existingWf) {
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console.log(`Updating existing workflow (ID: ${existingWf.id})...`);
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deployResult = await n8nRequest(`/api/v1/workflows/${existingWf.id}`, "PUT", workflowDefinition);
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} else {
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deployResult = await n8nRequest("/api/v1/workflows", "POST", workflowDefinition);
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}
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// Activate the workflow
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console.log(`Activating workflow (ID: ${deployResult.id})...`);
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await n8nRequest(`/api/v1/workflows/${deployResult.id}/activate`, "POST");
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const webhookUrl = `${N8N_HOST}/webhook/${deployResult.id}/webhook/evaluate-candidate`;
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console.log("\n==============================================");
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console.log("DEPLOYMENT COMPLETE");
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console.log("==============================================");
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|
console.log(`Workflow ID: ${deployResult.id}`);
|
|
console.log(`Webhook URL: ${webhookUrl}`);
|
|
console.log("==============================================");
|
|
|
|
// Update .env file automatically
|
|
const envFilePath = path.join(__dirname, "../.env");
|
|
if (fs.existsSync(envFilePath)) {
|
|
let envContent = fs.readFileSync(envFilePath, "utf8");
|
|
if (envContent.includes("NEXT_PUBLIC_N8N_WEBHOOK_URL=")) {
|
|
envContent = envContent.replace(
|
|
/NEXT_PUBLIC_N8N_WEBHOOK_URL=.*/,
|
|
`NEXT_PUBLIC_N8N_WEBHOOK_URL=${webhookUrl}`
|
|
);
|
|
} else {
|
|
envContent += `\nNEXT_PUBLIC_N8N_WEBHOOK_URL=${webhookUrl}\n`;
|
|
}
|
|
fs.writeFileSync(envFilePath, envContent, "utf8");
|
|
console.log("Updated NEXT_PUBLIC_N8N_WEBHOOK_URL in .env");
|
|
}
|
|
}
|
|
|
|
main().catch((err) => {
|
|
console.error("Deployment failed:", err);
|
|
process.exit(1);
|
|
});
|