Content type negotiation in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the content type produced by the controller method.

Spring Boot

@GetMapping(value = "/data", produces = "[1]")
public String getData() {
    return "Hello";
}

Drag options to blanks, or click blank then click option'

Aapplication/json

Btext/plain

Capplication/xml

Dtext/html

Attempts:

3 left

💡 Hint

Common Mistakes

Using a content type that does not match the returned data format.

Forgetting to specify the produces attribute.

The produces attribute defines the content type the method returns. Here, text/plain means plain text is sent.

2fill in blank

medium

Complete the code to accept JSON input in the controller method.

Spring Boot

@PostMapping(value = "/submit", consumes = "[1]")
public ResponseEntity<String> submitData(@RequestBody Data data) {
    return ResponseEntity.ok("Received");
}

Drag options to blanks, or click blank then click option'

Atext/plain

Bapplication/xml

Cmultipart/form-data

Dapplication/json

Attempts:

3 left

💡 Hint

Common Mistakes

Using text/plain instead of application/json.

Not specifying the consumes attribute when expecting JSON.

The consumes attribute specifies the content type the method accepts. For JSON input, use application/json.

3fill in blank

hard

Fix the error in the annotation to correctly produce XML content.

Spring Boot

@GetMapping(value = "/info", produces = "[1]")
public Info getInfo() {
    return new Info("data");
}

Drag options to blanks, or click blank then click option'

Aapplication/json

Btext/html

Capplication/xml

Dtext/plain

Attempts:

3 left

💡 Hint

Common Mistakes

Using application/json when XML is expected.

Not matching the produces type with the returned data format.

To produce XML output, the produces attribute must be set to application/xml.

4fill in blank

hard

Fill both blanks to accept JSON input and produce JSON output.

Spring Boot

@PostMapping(value = "/process", consumes = "[1]", produces = "[2]")
public ResponseEntity<String> process(@RequestBody Input input) {
    return ResponseEntity.ok("Done");
}

Drag options to blanks, or click blank then click option'

Aapplication/json

Btext/plain

Capplication/xml

Dtext/html

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing content types between consumes and produces.

Using plain text or XML instead of JSON.

Both consumes and produces should be application/json to handle JSON input and output.

5fill in blank

hard

Fill all three blanks to create a controller method that accepts XML, produces JSON, and maps to "/convert".

Spring Boot

@RequestMapping(value = "/[1]", consumes = "[2]", produces = "[3]")
public ResponseEntity<String> convert(@RequestBody Data data) {
    return ResponseEntity.ok("Converted");
}

Drag options to blanks, or click blank then click option'

Aconvert

Bapplication/json

Capplication/xml

Dsubmit

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping consumes and produces media types.

Using incorrect URL path in the value attribute.

The method maps to /convert, consumes XML (application/xml), and produces JSON (application/json).