Why is the API call link not working in Angular, even though it works with Postman on the created link?

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There could be several reasons why an API call link in Angular is not working even though it works with Postman on the created link. Some possible reasons could include:

1. Cross-Origin Resource Sharing (CORS) Policy: Browsers implement the CORS policy to prevent JavaScript code from making API calls to other domains. If the API is hosted on a different domain than the Angular application, the browser may block the API calls due to CORS policy restrictions. To overcome this, you can configure the server to allow cross-origin requests, or use a proxy server to forward the API requests to the server.

2. Invalid URL: The API call link may be incorrect or invalid, which may be causing the issue. Ensure that the URL is correct and complete, and that it includes all the necessary parameters and values.

3. Authentication/Authorization Issues: Some APIs require authentication or authorization before allowing access. Ensure that you are sending the correct authentication/authorization credentials along with the API request.

4. Network Issues: The issue may be due to network connectivity problems, such as a slow or unreliable Internet connection. Ensure that you have a stable and fast Internet connection.

5. Server Errors: If the API server is experiencing issues, it may not be able to respond to the API requests, even if they are valid. Check the server logs to see if there are any errors, and contact the server administrators if necessary.

Overall, there could be a variety of reasons why the API call link is not working in Angular. It's essential to identify the root cause of the issue and troubleshoot accordingly.