Hosting a file along with my function

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19

Hi, I’m having a similar issue.
I’m developing a lambda locally using this command (through Yarn):
netlify-lambda serve src/functions --config webpack.functions.js
(to add nodeExternals because I’m using Firebase).

I also have a .babelrc in my functions dir to make typescript work.
All is great both locally and on Netlify.

Now I would like to embark PDF files that I want to open with fs.readFileSync.

Initially, I had this error:

ENOENT: no such file or directory

Then I used require.resolve as suggested, but I got:

WARNING in ./pdf/coupon.pdf 1:0
Module parse failed: Unexpected token (1:0)

So I guessed Webpack was trying to load it as a source file, so I updated my webpack.functions.js like this:

const nodeExternals = require("webpack-node-externals")

module.exports = {
  externals: [nodeExternals()],
  module: {
    rules: [
      {
        test: /\.pdf$/i,
        use: [{ loader: "file-loader" }],
      },
    ],
  },
}

But now the error is:

{ Error: ENXIO: no such device or address, read
    at Object.readSync (fs.js:493:3)
    at tryReadSync (fs.js:332:20)
    at Object.readFileSync (fs.js:369:19)
    at Object.b [as handler] ([...]/functions/coupon.js:1:4032)
    at process._tickCallback (internal/process/next_tick.js:68:7) errno: -6, syscall: 'read', code: 'ENXIO' }

Any clue? :confused:

Edit: I realized that using a Babel loader meant the file would actually be read, so I don’t need to read it again, right? So I just imported the PDF:

const pdf = require("./assets/template.pdf")

(import works too)

but now the pdf-lib is failing with an error:

Error: Failed to parse PDF document (line:0 col:54 offset=27): No PDF header found

But if I make a Node script to open that PDF with that lib, it works…