The short answer: Edit package.json in Lovable to add the SDK dependency, create a small server-side wrapper file under src/ (so you call the SDK from server code / API routes), add any secrets via Lovable’s Secrets UI, and use Lovable Preview or Publish to trigger cloud install. If the SDK requires native builds or CLI steps, export to GitHub from Lovable and run those commands locally — Lovable can’t run arbitrary terminal commands inside the editor.

Prompt: Add a server-side Node SDK (safe for secrets)

Paste this into Lovable chat to make the editor add the dependency, create a secure wrapper, and show how to call it from an API route. This assumes your project uses src/ for source files and server-side API routes under src/api or src/pages/api.

• Change package.json: add the SDK package name and version.
• Create a server wrapper file at src/server/sdkClient.ts that reads secrets from process.env and exports simple functions used by API routes.
• Create an example API route at src/pages/api/use-sdk.ts (or src/api/use-sdk.ts depending on your project) that calls the wrapper.
• Tell me to add the secret via the Secrets UI and preview/publish to install.

Please make these edits:

1) Update package.json: add a dependency "example-sdk": "^1.2.3" under "dependencies".

2) Create file src/server/sdkClient.ts with this content:
// server-safe wrapper for example-sdk
import ExampleSDK from "example-sdk";

const client = new ExampleSDK({
  apiKey: process.env.EXAMPLE_API_KEY, // set in Lovable Secrets UI
});

export async function doThing(params) {
  // call the SDK and return result
  return await client.doThing(params);
}

3) Create file src/pages/api/use-sdk.ts with this content:
// simple API route demonstrating server use
import { doThing } from "../../server/sdkClient";

export default async function handler(req, res) {
  try {
    const result = await doThing({ body: req.body });
    res.status(200).json({ ok: true, result });
  } catch (err) {
    res.status(500).json({ ok: false, message: String(err) });
  }
}

4) In the chat reply, prompt me with exact steps to add a secret named EXAMPLE_API_KEY in Lovable's Secrets UI and remind me to click Preview or Publish so the cloud will install the new dependency.

Prompt: Add a browser-only SDK (client-side)

Use this prompt when the SDK is intended to run in the browser (analytics, widgets). This adds the dependency and demonstrates a safe client wrapper that avoids leaking server secrets.

• Add dependency to package.json.
• Create src/lib/clientSdk.ts for imports used in React components.
• Update a component (e.g., src/App.tsx) to initialize the SDK on client mount.

Please make these edits:

1) Update package.json: add "example-browser-sdk": "^0.4.0" under "dependencies".

2) Create file src/lib/clientSdk.ts with this content:
// client-side SDK init
import ExampleBrowserSDK from "example-browser-sdk";

let sdk;
export function initClientSdk(opts = {}) {
  if (!sdk) {
    sdk = new ExampleBrowserSDK({ clientOption: opts.clientOption });
  }
  return sdk;
}

3) Update src/App.tsx (or the main client entry) to import and call initClientSdk inside a useEffect:
// initialize client SDK on mount
import { useEffect } from "react";
import { initClientSdk } from "./lib/clientSdk";

function App() {
  useEffect(() => {
    const sdk = initClientSdk({ clientOption: true });
    // // optionally store on window for debugging: window.__SDK = sdk;
  }, []);
  return (<div>App</div>);
}

4) Remind me to Preview/Publish so Lovable installs the new client dependency in the build.

Prompt: SDK requires native build or CLI steps (outside Lovable)

If the SDK uses native bindings or requires running npm rebuild, Docker, or other CLI steps, Lovable cannot run those in-editor. Use this prompt to export to GitHub and indicate the local commands to run.

• Export repository to GitHub from Lovable (use the GitHub sync/export button).
• Run the build steps locally and push the changes back to GitHub; then return to Lovable and sync.

Please perform these actions and tell me exactly how to do them:

1) Export/sync this Lovable project to GitHub (use the Export to GitHub button).

2) Locally (outside Lovable), run:
 // clone the repo if needed
 git clone <repo-url>
 cd <repo-folder>
 npm install
 // run any native rebuild or install step required by the SDK
 npm run build

3) Commit any lockfile changes and push to GitHub.

4) In Lovable, sync the GitHub repo to pull the built artifacts and updated lockfile.

Also list the exact native commands required by the SDK (if any) so I can run them locally.

Final notes: After adding dependencies in Lovable, always use the Secrets UI for keys (do not hardcode) and click Preview or Publish to let Lovable Cloud install packages. For anything requiring terminal commands, export to GitHub and run those commands locally; then re-import/sync into Lovable.

Keep SDK initialization in one server-side wrapper, load SDKs lazily on the client, and store credentials in Lovable Secrets — then use small API proxies or server functions so API keys never land in the browser. Centralize error handling, retries, and timeouts in that wrapper, and use GitHub export when you must run a package install or native build step outside Lovable.

Key practices (short)

• Centralize SDK setup in a single module so you can change configs in one place.
• Keep secrets in Lovable Secrets UI and read them only from server code.
• Prefer server-side calls (proxy endpoints or server functions) to avoid bundling keys & big SDKs into client bundles.
• Lazy-load client SDKs with dynamic import so your initial bundle stays small.
• Wrap SDK calls with retries, timeouts, and clear error messages for observability.
• If install/build is required, use GitHub export/sync and run npm/yarn locally or CI — document that step in the repo.

Lovable prompts to implement these best practices

Paste these prompts into Lovable chat. Lovable can inspect your repo first; the first prompt asks it to detect framework and then make targeted changes.

// Prompt A: Detect framework and create centralized server-side SDK wrapper + secret usage
// Please inspect the repository to detect the web framework (Next.js, Remix, Vite, etc.).
// Create a server-only SDK wrapper at src/lib/sdk-server.ts that reads credentials from process.env.
// Create a client-side lazy loader at src/lib/sdk-client.ts that uses dynamic import and only exposes UI-safe helpers.
// Add comments describing that secrets must be set via Lovable Secrets UI and where to configure them.

Create file src/lib/sdk-server.ts with contents:
// Server-side SDK wrapper
// This module must only be imported from server-side code or API routes.
const API_KEY = process.env.EXTERNAL_SDK_KEY; // set via Lovable Secrets UI

export async function sdkServerCall(path, params) {
  // Implement a minimal wrapper: timeouts, retries, and clear errors
  // // Add your SDK initialization here if needed (e.g., new SDK.Client({ apiKey: API_KEY }))
  // // For now we'll use a fetch proxy example to keep this generic
  const controller = new AbortController();
  const timeout = setTimeout(() => controller.abort(), 10000);

  try {
    // // Replace with SDK call when SDK available
    const res = await fetch(`https://api.external.example${path}`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', 'Authorization': `Bearer ${API_KEY}` },
      body: JSON.stringify(params),
      signal: controller.signal,
    });
    clearTimeout(timeout);
    if (!res.ok) throw new Error('External SDK call failed: ' + res.status);
    return await res.json();
  } catch (err) {
    // // Add retry logic here if appropriate
    throw err;
  }
}

// Prompt B: Create an API proxy route using detected framework
// After detecting the framework, create a small server API route at /api/sdk-proxy that calls sdkServerCall.
// If your project is Next.js, create src/pages/api/sdk-proxy.ts
// If Remix, create app/routes/api.sdk-proxy.ts
// If another framework, add an HTTP handler under the framework's server route convention.
// The file should validate input and call sdkServerCall then return JSON.

Create a server route file for the framework with contents:
// // Example payload validation
export default async function handler(req, res) {
  try {
    const payload = req.method === 'POST' ? req.body : {};
    // // Call the centralized server wrapper
    const result = await import('../lib/sdk-server').then(m => m.sdkServerCall('/v1/do', payload));
    return res.status(200).json({ ok: true, data: result });
  } catch (err) {
    return res.status(500).json({ ok: false, error: String(err) });
  }
}

// Prompt C: Update a client component to lazy-load SDK UI parts and call the proxy
// Modify src/components/IntegrationDemo.tsx (create it if missing). Use dynamic import for any heavy UI SDK and call /api/sdk-proxy for server ops.

Create or update src/components/IntegrationDemo.tsx with contents:
// // lightweight client component
import React, { useState } from 'react';

export default function IntegrationDemo() {
  const [loading, setLoading] = useState(false);
  const [result, setResult] = useState(null);

  async function callServer(payload) {
    setLoading(true);
    try {
      const res = await fetch('/api/sdk-proxy', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(payload),
      });
      const json = await res.json();
      setResult(json);
    } finally {
      setLoading(false);
    }
  }

  return (
    <div>
      <button onClick={() => callServer({ foo: 'bar' })} disabled={loading}>
        {loading ? 'Working…' : 'Call SDK via server'}
      </button>
      <pre>{result ? JSON.stringify(result, null, 2) : 'No result'}</pre>
    </div>
  );
}

// Prompt D: Add a README note and Secrets guidance
// Create or update README.md with instructions telling teammates to set EXTERNAL_SDK_KEY in Lovable Secrets UI
// Also add a short note describing when to export to GitHub for native installs.

Append to README.md:
// // Secrets
// // Set EXTERNAL_SDK_KEY in Lovable Cloud -> Project -> Secrets
// // If the SDK requires native modules or you need to run `npm install`/build steps, use Lovable's GitHub export/sync and run those commands in your local environment or CI.

When a native install or build is required

• Use GitHub export/sync from Lovable and run npm/yarn locally or in CI to install native deps.
• Document the exact commands in the repo README so non-terminal users know the extra step.