How can I log each request/response using Alamofire?

There’s a sweet little pod for this: https://github.com/konkab/AlamofireNetworkActivityLogger

Add this to your podfile:

pod 'AlamofireNetworkActivityLogger', '~> 2.0'

In your AppDelegate:

import AlamofireNetworkActivityLogger

Then in your didFinishLaunchingWithOptions, add this:

NetworkActivityLogger.shared.level = .debug
NetworkActivityLogger.shared.startLogging()

EDIT:
I’ve actually encountered crashes with this in production. To be on the safe side, use “build flags” to only use this in debug, something like this:

#if DEBUG
    NetworkActivityLogger.shared.level = .debug
    NetworkActivityLogger.shared.startLogging()
#endif