Writing json file in node.js returns 'EROFS' error

Question

I'm trying to write a json file in node.js in the following way:

const fs = require('fs');

fs.writeFile('./keywords.json', JSON.stringify(keywords), function(err) {
   if (err) throw err;
   else console.log("success");
});

However I get the following error:

Error: EROFS: read-only file system, open './keywords.json'

So, I tried to open the file before writing it, in the following way:

fs.open('./keywords.json', 'w', function (err, file) {
   if (err) throw err;
   fs.writeFile('./keywords.json', JSON.stringify(keywords), function(err) {
     if (err) throw err;
     else console.log("success");
   });
});

However the problem persists. How can i solve it? Thank you.

What is the environment where you are running this code?

tbking
– tbking

2020-12-03 17:47:37 +00:00
Commented Dec 3, 2020 at 17:47 — tbking
– tbking, Commented Dec 3, 2020 at 17:47
Firebase cloud functions

Francesco
– Francesco

2020-12-03 17:48:12 +00:00
Commented Dec 3, 2020 at 17:48 — Francesco
– Francesco, Commented Dec 3, 2020 at 17:48

tbking · Accepted Answer · 2020-12-03 17:56:29Z

1

Firebase provides only a read-only file system. You can not write files on the system. You would have to use some kind of an Object storage like Amazon S3 or Firebase Cloud Storage.

answered Dec 3, 2020 at 17:56

tbking

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