ReferenceError: FileReader is not defined in node js (nest js)

Question

I am trying to convert my image to base64. So I create this function for this. But the problem is when I try to run my program I have an error called ReferenceError: FileReader is not defined. I have no idea what is this error about.

This is my code..?

const toDataURL = url => fetch(url)
  .then(response => response.blob())
  .then(blob => new Promise((resolve, reject) => {
    const reader = new FileReader()
    reader.onloadend = () => resolve(reader.result)
    reader.onerror = reject
    reader.readAsDataURL(blob)
  }).catch((error) => {
     console.log(error);
  });
)


toDataURL('https://www.gravatar.com/avatar/d50c83cc0c6523b4d3f6085295c953e0')
  .then(dataUrl => {
    console.log('RESULT:', dataUrl)
  })

It is because FileReader is part of web API not of javascript so it is not available in nodejs instead of this you can use the fs module available in nodejs you can read about fs on official nodejs docs — Abbas Shaikh
– Abbas Shaikh, Commented Aug 23, 2022 at 12:18

Andrey Smolko · Accepted Answer · 2022-08-23 12:21:01Z

2

FileReader is part of Web API in a browser but not in Node.js Try to use native Node.js method to read from a file or try to search an appropriate npm package

answered Aug 23, 2022 at 12:21

Andrey Smolko

1,2147 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

ReferenceError: FileReader is not defined in node js (nest js)

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related