Safely use secrets in HTTP requests in Visual Studio 2022

- Visual Studio 2022 allows you to externalize variables in HTTP requests to define different sets of values for different environments.
- You can add an HTTP request environment file named httpenv.json to define variables for each environment.
- If a variable is not defined in an environment, the HTTP editor will show a warning.
- User-specific values can be defined in an httpenv.json.user file, which overrides values defined in the httpenv.json file.
- Secrets can be securely used in HTTP requests by defining them as user-specific values and keeping the httpenv.json.user file private.
- This feature enables developers to safely use sensitive information without sharing it with the rest of the team.