Скачать или смотреть Object value is changed during the request to the backend

*Introduction:*

Hey everyone, welcome back to our channel! Today, we're going to tackle a common issue that many developers face when working with backend requests: "Object value is changed during the request to the backend". This problem can be frustrating and difficult to debug, but don't worry, by the end of this video, you'll have a clear understanding of what's causing it and how to fix it.

When building web applications, we often send data from the client-side to the server-side using HTTP requests. However, sometimes the values in our objects seem to change unexpectedly during this process. This can lead to unexpected behavior, errors, or even security vulnerabilities. So, let's dive into what's happening behind the scenes and how we can prevent it.

*Main Content:*

To understand why object values are changing during backend requests, let's break down the request lifecycle. When a client sends an HTTP request to the server, the data is serialized, meaning it's converted into a format that can be sent over the network. This serialization process involves converting complex objects into a string or binary format.

Here's where things get interesting: when the server receives the request, it deserializes the data back into its original form. However, this deserialization process can sometimes modify the original object values. For example, if you're sending a JavaScript Date object to the server, it might be converted to a different timezone or format.

Another common culprit is JSON serialization. When we send objects in JSON format, some libraries may alter the data to make it more "JSON-friendly". This can include changing property names, removing undefined values, or even modifying dates.

To illustrate this concept, let's consider an example. Suppose you have a JavaScript object with a Date property, and you're sending it to the server using a POST request. On the client-side, the date is set to March 12th, 2023. However, when the server receives the request, the date has changed to March 11th, 2023.

What's happening here? The serialization process is altering the Date object's timezone or format, resulting in a different value on the server-side.

*Key Takeaways:*

So, what are the key takeaways from this discussion?

Object values can change during backend requests due to serialization and deserialization processes.
Different libraries and frameworks may modify data during these processes.
Understanding how your data is being serialized and deserialized is crucial to preventing unexpected changes.

*Conclusion:*

That's it for today's video! We've explored the common issue of object value changes during backend requests. By understanding the request lifecycle, serialization, and deserialization processes, you're better equipped to handle these situations.

If you have any questions or need further clarification on this topic, please leave a comment below. Don't forget to like this video and subscribe for more content on web development and related topics.

Thanks for watching, and we'll catch you in the next one!