Error codes for machine consumption in Rest API - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the HTTP status code for a successful GET request?

When a client sends a GET request to a REST API and the request is successful, what HTTP status code does the server typically return?

A 500

B 404

C 200

D 302

💡 Hint

Think about the standard code that means 'OK' or success.

The HTTP status code 200 means the request was successful and the server is returning the requested data.

❓ Predict Output

intermediate

Which HTTP status code indicates a client error due to invalid input?

If a client sends a request with invalid data to a REST API, which HTTP status code should the server return to indicate a client error?

A 201

B 400

C 503

D 401

💡 Hint

This code means 'Bad Request'.

HTTP 400 means the server cannot process the request because the client sent invalid data.

❓ Predict Output

advanced

What is the correct HTTP status code for 'Resource Not Found'?

When a client requests a resource that does not exist on the server, which HTTP status code should the server return?

A 404

B 403

C 500

D 200

💡 Hint

This code means the resource is missing.

HTTP 404 means the requested resource was not found on the server.

❓ Predict Output

advanced

Which HTTP status code indicates the server encountered an unexpected condition?

If the server fails due to an unexpected error, which HTTP status code should it return?

A 204

B 401

C 302

D 500

💡 Hint

This code means 'Internal Server Error'.

HTTP 500 indicates the server has an error that prevents it from fulfilling the request.

🧠 Conceptual

expert

Why should REST APIs use standard HTTP status codes for machine consumption?

Choose the best reason why REST APIs use standard HTTP status codes to communicate errors to machines.

A Because standard codes allow clients to automatically understand and handle responses without custom parsing.

B Because standard codes make the API slower but more secure.

C Because standard codes are required by all programming languages.

D Because standard codes prevent any errors from happening.

💡 Hint

Think about how machines read and react to responses.

Standard HTTP status codes provide a universal way for clients to know the result of their requests and handle errors automatically.