Anti-corruption layer in Microservices - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the Anti-corruption Layer interface.

Microservices

class AntiCorruptionLayer {
    public void translate([1] input) {
        // translation logic
    }
}

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

AExternalModel

BInternalModel

CServiceResponse

DDataTransferObject

Attempts:

3 left

💡 Hint

Common Mistakes

Using internal models as input instead of external models.

The Anti-corruption Layer translates from the external model, so the input should be the external model.

2fill in blank

medium

Complete the code to implement the Anti-corruption Layer adapter method.

Microservices

public InternalModel adapt([1] external) {
    // mapping logic
    return new InternalModel();
}

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

AServiceRequest

BInternalModel

CExternalModel

DDataEntity

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing input and output types in the adapter method.

The adapter method takes an external model as input to convert it into an internal model.

3fill in blank

hard

Fix the error in the Anti-corruption Layer pattern where the internal system is directly coupled to the external system.

Microservices

public class InternalService {
    private ExternalService externalService;

    public void process() {
        var data = externalService.getData();
        var internalData = [1](data);
        // process internalData
    }
}

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

AexternalService.getData

BinternalService.transform

CexternalService.processData

Dnew Adapter().adapt

Attempts:

3 left

💡 Hint

Common Mistakes

Calling external service methods directly without translation.

The internal service should use an adapter to translate external data, avoiding direct coupling.

4fill in blank

hard

Fill both blanks to complete the request flow through the Anti-corruption Layer.

Microservices

ExternalSystem -> [1] -> [2] -> InternalSystem

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

AAntiCorruptionLayer

BExternalAPI

CInternalAPI

DAdapter

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing the order of components in the flow.

The request first hits the External API, then passes through the Anti-corruption Layer before reaching the internal system.

5fill in blank

hard

Fill both blanks to complete the dictionary comprehension for filtering and transforming data in the Anti-corruption Layer.

Microservices

filtered_data = {k:v for k, v in data.items() if v [1] 10 and 'valid' [2] k}

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

A:

B>

Cin

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong operators or missing colon in comprehension.

The dictionary comprehension uses ':' to map keys to values, filters values greater than 10, and keys containing 'valid'.