AlamofireEasyLogger

AlamofireEasyLogger is an easy drop-in Alamofire request & response logger. No configuration is needed, it just works.

It works for all requests and responses. There is no need to call a function on every request. It provides a full request/response logger out of the box and allows for easy overriding in case you have different requirements for what you want to see.

Requirements

• iOS 10.0+
• Swift 5.0+

For Swift 4.2 please use pod version 1.0.0. For Alamofire 4.6 please use pod version 1.1.0.

Dependencies

• Alamofire 5+

Installation

Swift Package Manager

Simply add URL of this repository into your package dependencies:

https://github.com/jankaltoun/AlamofireEasyLogger

Cocoapods

To install this library using Cocoapods, simply add the following line to your Podfile

pod 'AlamofireEasyLogger'

Carthage

To integrate this library using Carthage, add the following line to your Cartfile.

github "jankaltoun/AlamofireEasyLogger"

Usage

Out of the box AlamofireEasyLogger provides the FancyAppAlamofireLogger class that logs request and responses with their parameters, headers and bodies as in the example below.

This works for both successful and unsuccessful requests/responses and the output is nicely formatted.

FancyAppAlamofireLogger log example

🚀🚀🚀 REQUEST 🚀🚀🚀
🔈 GET https://api.openweathermap.org/data/2.5/forecast?lat=-26.2041028&lon=28.0473051&APPID=hidden&units=metric
🚀🚀🚀 REQUEST 🚀🚀🚀

✅✅✅ SUCCESS RESPONSE ✅✅✅
🔈 GET https://api.openweathermap.org/data/2.5/weather?lat=-26.2041028&lon=28.0473051&APPID=hidden&units=metric
🔈 Status code: 200
💡 Access-Control-Allow-Methods: GET, POST
💡 X-Cache-Key: /data/2.5/weather?APPID=hidden&lat=-26.2&lon=28.05&units=metric
💡 Server: openresty
💡 Content-Length: 441
💡 Date: Sat, 12 Jan 2019 16:30:50 GMT
💡 Content-Type: application/json; charset=utf-8
💡 Access-Control-Allow-Origin: *
💡 Access-Control-Allow-Credentials: true
💡 Connection: keep-alive
{"coord":{"lon":28.05,"lat":-26.2},"weather":[{"id":500,"main":"Rain","description":"light rain","icon":"10d"}],"base":"stations","main":{"temp":29.53,"pressure":1015,"humidity":37,"temp_min":29,"temp_max":30},"wind":{"speed":0.5,"deg":310},"rain":{"3h":0.575},"clouds":{"all":32},"dt":1547308800,"sys":{"type":1,"id":1958,"message":0.0103,"country":"ZA","sunrise":1547263628,"sunset":1547312706},"id":993800,"name":"Johannesburg","cod":200}
✅✅✅ SUCCESS RESPONSE ✅✅✅

Usage in app

You need to hold a reference to your logger instance. The place to do this might be your AppDelegate or any other place where the reference will stay alive.

import UIKit
import AlamofireEasyLogger

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    
    let alamofireLogger = FancyAppAlamofireLogger(prettyPrint: true) {
        print($0)
    }
    
    ...
}

As you can see above the only parameter the logger takes during initialization is logFunction closure defined as public typealias LogFunction = (String) -> Void. This function is responsible for logging the requests and responses. You can use a simple print as in the example above or integrate a logging library of your choice.

Implementing your own logger

If the FancyAppAlamofireLogger is too verbose for your taste or you want to implement a completely custom logger you can use the AlamofireLoggerDelegate of AlamofireEasyLogger.

Your logger should be used exactly like the FancyAppAlamofireLogger in the example above and should look similar to following piece of code.

class FancyAppAlamofireLogger: AlamofireLoggerDelegate {
    
    let alamofireLogger = AlamofireLogger()
    
    public init() {
        alamofireLogger.delegate = self
        alamofireLogger.startLogging()
    }
    
    open func networkRequestDidStart(request: AlamofireLoggerRequest) {
        ...
    }
    
    open func networkRequestDidComplete(request: AlamofireLoggerRequest, result: AlamofireLoggerResult) {
        ...
    }
    
    open func loggingFailed(error: AlamofireLoggingError) {
        ...
    }
}

As you can see on this example AlamofireEasyLogger is quite versatile and with the use of AlamofireLoggerDelegate you're able to develop a completely custom logger while leveraging the AlamofireLoggerRequest, AlamofireLoggerResult and AlamofireLoggingError entities provided to you.

Author

Jan Kaltoun, [email protected]

License

Please do whatever you want with this code.

If you link to this repository or mention me as the author, it will make me happy!