expressjsHow do I fix the "fetch is not defined" error when using Express.js?

The "fetch is not defined" error occurs when you try to use the fetch API in Express.js. To fix this error, you need to make sure that the fetch API is imported into your Express.js project.

For example, you can use the node-fetch package by adding the following code to your project:

const fetch = require('node-fetch');

Once node-fetch is imported, you can use the fetch API in your Express.js project:

fetch('https://example.com/api')
  .then(res => res.json())
  .then(json => console.log(json))

Output example

{
  "data": {
    "name": "John Doe"
  }
}

The code above will import the node-fetch package and use the fetch API to make a request to https://example.com/api and print the response in the console.

If you are using fetch for the first time, you can find out more about it here.

You can also find out more about the node-fetch package here.

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