Complete the code to define a microservice that handles user requests asynchronously.
def handle_request(request): # Process request asynchronously using [1] pass
Using a message queue allows asynchronous processing, which helps handle requests without blocking.
Complete the code to implement a retry mechanism for failed microservice calls.
def call_service(): for attempt in range(3): response = send_request() if response.status == [1]: return response return None
The retry should continue until a 200 OK status is received, indicating success.
Fix the error in the circuit breaker pattern implementation by completing the condition.
if failure_count > [1]: open_circuit()
The circuit breaker opens when the failure count exceeds a defined threshold.
Fill both blanks to implement a fallback method when the primary service fails.
try: result = primary_service.call() except [1]: result = [2]()
When the ServiceUnavailableError occurs, the system calls the fallback_service.call() method.
Fill all three blanks to implement a load balancer that distributes requests evenly.
class LoadBalancer: def __init__(self, servers): self.servers = servers self.index = 0 def get_server(self): server = self.servers[[1]] self.index = (self.index + [2]) % [3] return server
The load balancer returns the server at self.index, then increments the index by 1 modulo the number of servers (len(self.servers)) to cycle through servers evenly.