London | 26-SDC-March | Zobeir Rigi | Sprint 3 | Middleware exercises

[Zobeir-Rigi]

Self checklist

• I have titled my PR with Region | Cohort | FirstName LastName | Sprint | Assignment Title
• My changes meet the requirements of the task
• I have tested my changes
• My changes follow the style guide

Exercise 1

• Created a usernameMiddleware to read the X-Username header.
• Added a middleware to parse and validate the POST request body.
• Validated that the body is a JSON array containing only strings.
• Returned different responses depending on whether the user is authenticated.

Exercise 2

• Removed the custom JSON parsing middleware.
• Replaced it with Express's built-in express.json() middleware.
• Kept body validation in a separate middleware.
• Updated the curl command to include Content-Type: application/json.

Result

The application now uses middleware to handle authentication and request validation, and uses Express's built-in JSON middleware instead of manually parsing request bodies.

[cjyuan]

The middleware looks good.

Note:
According to the spec, the apps are expected to be implemented in two separate sub-directories.