Resolving TypeError [ERR_INVALID_URL]: Fixing Local File Access with Node Fetch Library

Discover how to resolve the `Invalid URL` error when using Node Fetch to read local files. Step-by-step guide to fix your JavaScript code and effectively work with local blobs.
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Resolving TypeError [ERR_INVALID_URL]: Fixing Local File Access with Node Fetch Library

Have you ever faced the frustrating TypeError [ERR_INVALID_URL]: Invalid URL error while trying to read a local file as a blob using the Node Fetch library? This common issue can disrupt your development process, especially when you are working with asynchronous file access in JavaScript. In this guide, we will explore the problem in detail and provide you with a step-by-step guide to resolve it.

Understanding the Problem

The issue arises when you try to access a local file using the fileFrom method from the Node Fetch library. A typical scenario would involve reading a video file locally, but instead, you receive an uncatchable Invalid URL error.

Example Code

Here's a snippet of the code that triggers the error:

[[See Video to Reveal this Text or Code Snippet]]

When you run this, you might encounter the following error message:

[[See Video to Reveal this Text or Code Snippet]]

The key factor here is whether the file path is interpreted correctly by Node Fetch.

Breaking Down the Solution

Let's dive into the solution to resolve this error. The main issue lies in how you are importing the functions from the Node Fetch library. Specifically, it's a mix-up with what is being imported and how it's being used.

Steps to Fix the Code

Correctly Import Functions:

Make sure you are using the correct imports for blobFrom and fileFrom. Instead of using fetch for everything, you should directly call the respective methods after importing them.

Updated Code:

Here is the revised code that should fix the issue:

[[See Video to Reveal this Text or Code Snippet]]

With this change, the Node Fetch library will correctly interpret the local file as a valid URL.

Final Thoughts

By adhering to these adjustments in your code, you should be able to resolve the TypeError [ERR_INVALID_URL] error and properly read local files into blobs using Node Fetch. This type of error can be quite common among developers, especially those new to asynchronous JavaScript, but with a bit of attention to the detail of your imports, you can navigate past it easily.

If you continue to experience issues or have any questions, feel free to reach out for further assistance. Happy coding!