typescript - Read file with firebase function

Question

I've got a Firebase Function and want to read a html file, stored in a subfolder.

── functions
    ├── src
    |   ├── index.ts // Here is the function
    |   ├── html
    |   |   ├── template.html // the file I want to read

I tried to read the file via const html = fs.readFileSync('./html/template.html'); but it always tells me

Error: ENOENT: no such file or directory, open './html/template.html' at Object.openSync

I worked trough almost every question on stackoverflow concerning this topic but nothing worked for me. I also tried placing the file in the same folder as the function but it always gives me the error.

Do I need to install some package or import the file in some way to access it?

question from:https://stackoverflow.com/questions/65647010/read-file-with-firebase-function

Answer 1

You need to use the path.resolve() method, which will resolve your path into an absolute path, before passing it to the fs.readdirSync() method. So the following should do the trick:

    const path = require('path');

    // ...

    let content = fs.readFileSync(
        path.resolve('./html/template.html')
    );