fix: lightpanda 1st example

Author: nrigaudiere

docs/guides/examples/lightpanda.mdx

@@ -25,33 +25,59 @@ You will find here are a couple of examples of how to use Lightpanda with Trigge
 In this task, we use Lightpanda browser to get links from a provided URL.
 You will have to pass the URL as a payload when triggering the task.
 
+Make sure to add `$LIGHTPANDA_TOKEN` to your Trigger.dev dashboard on the Environment Variables page:
+```bash
+LIGHTPANDA_TOKEN: "<your-token>",
+```
+
 ```ts trigger/lightpanda-cloud-puppeteer.ts
-import puppeteer from "puppeteer"
+import { logger, task } from '@trigger.dev/sdk/v3'
+import puppeteer from 'puppeteer'
 
 export const lightpandaCloudPuppeteer = task({
-  id: "lightpanda-cloud-puppeteer",
-  run: async (payload: { url: string }) => {
-    const { url } = payload
+  id: 'lightpanda-cloud-puppeteer',
+  machine: {
+    preset: 'micro',
+  },
+  run: async (payload: { url: string }, { ctx }) => {
+    logger.log("Lets get a page's links with Lightpanda!", { payload, ctx })
+    if (!payload.url) {
+      logger.warn('Please define the payload url')
+      throw new Error('payload.url is undefined')
+    }
+
+    if (typeof process.env.LIGHTPANDA_TOKEN === 'undefined') {
+      logger.warn('Please define the env variable $LIGHTPANDA_TOKEN', {
+        env: process.env,
+      })
+      throw new Error('$LIGHTPANDA_TOKEN is undefined')
+    }
 
+    // Connect to Lightpanda's cloud
     const browser = await puppeteer.connect({
-      browserWSEndpoint: "wss://cloud.lightpanda.io/ws?browser=lightpanda&token=TOKEN",
+      browserWSEndpoint: `wss://cloud.lightpanda.io/ws?browser=lightpanda&token=${process.env.LIGHTPANDA_TOKEN}`,
     })
     const context = await browser.createBrowserContext()
     const page = await context.newPage()
 
     // Dump all the links from the page.
-    await page.goto(url)
+    await page.goto(payload.url)
 
     const links = await page.evaluate(() => {
       return Array.from(document.querySelectorAll('a')).map(row => {
         return row.getAttribute('href')
       })
     })
 
+    logger.info('Processing done')
+    logger.info('Shutting down…')
+
     await page.close()
     await context.close()
     await browser.disconnect()
 
+    logger.info('✅ Completed')
+
     return {
       links,
     }
@@ -99,8 +125,17 @@ export const lightpandaFetch = task({
       throw new Error('payload.url is undefined')
     }
 
+    if (typeof process.env.LIGHTPANDA_BROWSER_PATH === 'undefined') {
+      logger.warn('Please define the env variable $LIGHTPANDA_BROWSER_PATH', {
+        env: process.env,
+      })
+      throw new Error('$LIGHTPANDA_BROWSER_PATH is undefined')
+    }
+
     const e = execSync(`${process.env.LIGHTPANDA_BROWSER_PATH} fetch --dump ${payload.url}`)
 
+    logger.info('✅ Completed')
+
     return {
       message: e.toString(),
     }
@@ -163,7 +198,6 @@ export const lightpandaCDP = task({
       logger.warn('Please define the env variable $LIGHTPANDA_BROWSER_PATH', {
         env: process.env,
       })
-
       throw new Error('$LIGHTPANDA_BROWSER_PATH is undefined')
     }