Adding a HTTP header to the Angular HttpClient doesn"t send the header, why?

📢 Title: Why is the HTTP header not sending in Angular HttpClient?

💡 Introduction So, you've encountered a frustrating issue - where adding a HTTP header to the Angular HttpClient doesn't seem to send the header. Don't worry! In this blog post, we will address this common issue and provide you with easy solutions. Let's dive right in! 💪

✋ Identifying the Problem First things first, let's analyze the code snippet provided. The issue lies within the logIn() function where you are trying to set the Content-Type header for the HTTP request. However, it seems that the header is not being sent and the server is not receiving the POST values.

🔍 Analyzing the Code Looking at your code, we can see that you are instantiating the HttpHeaders object correctly and trying to set the Content-Type header. However, there is a small glitch in the implementation. Can you spot it? 🤔

✅ Solution: Properly setting the HttpHeaders To actually set the headers, you need to use the set() method of the HttpHeaders object and assign the returned value back to the headers variable. The corrected code would be:

const headers = new HttpHeaders().set('Content-Type', 'application/json; charset=utf-8');

🚀 Explanation The reason why the original code didn't work is that the set() method returns a new instance with the updated header value. It doesn't modify the existing HttpHeaders object directly. By reassigning the returned value back to the headers variable, we ensure that the updated headers are used in the HTTP request.

👥 Reader Engagement: Share your experience Have you encountered a similar issue with adding headers in Angular HttpClient? Share your story in the comments below. Let's help each other out! 🤝🗣️

📸 Debugging: Network Inspection You mentioned that the request seems to be missing the header when inspected. Let's see what the network debug reveals. Based on the provided network debug information, we can observe that the request appears to lack the Content-Type header, which could be the source of the problem.

🔎 Investigation Upon further inspection, we found that the issue lies with the incorrect usage of the HttpHeaders object, as explained earlier. Since the header is not getting sent, the server receives an empty $_POST array.

🌟 Final Thoughts In this blog post, we addressed the common issue of the HTTP header not sending in Angular HttpClient. We explored the code, identified the problem, and provided an easy solution by properly setting the HttpHeaders. Remember, it's crucial to assign the returned value back to the headers variable. We hope this guide helped you resolve the issue efficiently.

💬 Your Turn Have you encountered any other challenging issues while working with HttpClient in Angular? Let us know in the comments below. Let's support each other and find solutions together! 💡💻

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👋 Conclusion We hope this guide helped you understand and resolve the issue of the HTTP header not sending in Angular HttpClient. Remember to set the headers correctly by using the set() method and reassigning the returned value. Happy coding! 💻✨