chrome-aws-lamba-layer-pdf

README.md

chrome-aws-lambda-layer for creating PDF and store to S3

index.js Code

ref: https://medium.com/@callecastillo/generate-pdf-files-with-aws-lambda-layers-node-js-and-puppeteer-a-real-world-approach-532884a0d919

Add Layer

ref: https://github.com/shelfio/chrome-aws-lambda-layer#available-regions

ARN: arn:aws:lambda:ap-northeast-1:764866452798:layer:chrome-aws-lambda:31

Function configure

• Node.js v16
• Memory: 1600MB
• Timeout: 3min

Role customize

• Add S3 Access for creating file in buckets

index.js

const chromium = require("@sparticuz/chrome-aws-lambda");
const AWS = require('aws-sdk')
const s3 = new AWS.S3();

exports.handler = async (event, context, callback) => {        
    
    let browser = null
    try {
        const ep = await chromium.executablePath
        console.log('executable path ', ep)

        browser = await chromium.puppeteer.launch({
            args: chromium.args,
            defaultViewport: chromium.defaultViewport,
            executablePath: ep,
            headless: chromium.headless,
        })

        const page = await browser.newPage()

        await page.setContent(`<h1>test:日本語:Your awesome PDF report template</h1>`)

        const pdf = await page.pdf({
            path: '/tmp/pdfReport.pdf', // TAKE ATTENTION!!
            format: 'A4',
            printBackground: true,
            margin: { top: 20, left: 20, right: 20, bottom: 20 },
            displayHeaderFooter: true
        })
        
        const params = {
            Body: Buffer.from(pdf), 
            Bucket: "ms2sato-test-pdf-store", 
            ContentType: "application/pdf",
            ContentDisposition: 'inline',
            Key: "pdfReport.pdf"
        }

        await s3.putObject(params, (err, data) => {
            if (err) {
                console.log('Error: ', err)
            } else {
                console.log('Stored: ', data)
            }
        })

        const httpResponse = {
          statusCode: 200,
          body: 'Done!',
      };

        callback(null, httpResponse)
    } 
    
    catch(error) {
        console.log('Error: ', error)
    }

    finally {
        console.log('In the end...')
        if (browser !== null) {
            await browser.close()
            // process.exit()
        }
    }
}