class LoginWithFacebookRequest: Request {
    typealias ResponseObjectType = User
    typealias ErrorType = AuthError
    
    let path = "login/facebook"
    let methong = .post
    let body: RequestBody?
    
    init(token: String) {   
        body = .params(
            [
                "token": token
            ]
        )
    }
}

LoginWithFacebookRequest(token: fbToken)
    .execute()
    
    .onSuccess { user in
        ...
    }
    
    .onFail { error in
        ...
    }
    
    .onStart { operation in
        ...
    }
    
    .onProgress { progress in
        ...
    }
    
    .onDebug { info in
        ...
    }
}

let endpoint = Endpoint(baseUrl: myBaseUrl)
endpoint.headers = defaultHeaders // Specifying some default headers like OS, device language, device model, etc.
endpoint.headers.authToken = .bearer(tokenString) // Specifying user token

Endpoint.default = endpoint

class MyRequest: Request {
    typealias ResponseObjectType = MyExpectedResponse
    typealias ErrorType = MyUnexpectedError
    
    let path = "my/path/to/backend" // Required
    let methong = .get // Optional
    let queryParams = [("key", "value")] // Optional
    let body = .params(["key", "value"]) // Optional
    let headers = [RequestHeaderKey("key"): "value", .contentType: "application/json"] // Optional
    let timeout = 60 // Optional, by defauld will be picked from Endpoint
    let endpoint = myEndpoint // Optional, by default will be a Endpoint.default
}

let myRequest = DefaultRequest<MyExpectedResponse, MyUnexpectedError>(
    path: "my/path/to/backend", 
    method: .get, 
    queryParams: [("key", "value")], 
    body: .params(["key", "value"]), 
    headers: [RequestHeaderKey("key"): "value", .contentType: "application/json"], 
    timeout: 60,
    responseConverter: myResponseConverter,
    errorConverter: myErrorConverter,
    endpoint: myEndpoint)

class MyMultipartRequest: MultipartFormDataRequest {
    // Same fields as in Request example
    
    let files: [MultipartFile] = [
        DefaultMultipartFile(resource: fileData, mime: .image(.png), fileName: "avatar1"),
        DefaultMultipartFile(resource: fileUrl, mime: .audio(.mp4), fileName: "song"),
        DefaultMultipartFile(resource: filePath, mime: .image(.jpeg), fileName: "avatar2")
    ]
}

myRequest
    .execute()
    .responseOn(.main) // Response will be returned in `.main` queue
    .retryOnFail(false) // If this request will fail - system will not try to rerun it again
    
    .onStart { requestOperation in
        // Will be called when request will start and return request operation that allow to control request during the execution
    }
    
    .onProgress { progress in
        // Will provide a progress of request execution. Useful for multipart uploading requests
    }
    
    .onSuccess { response in
        // Will return a response object specified in request under `ResponseType`
    }
    
    .onFail { error in
        // Will return `ErrorResponse` that might contain `ErrorType` specified in request
    }
    
    .onDebug { info in
        // Will return `DebugInfo` that contain a list of useful information for debugging request failure 
    }

class MyRequest: Request {
    var responseConverter: ResponseJsonConverter {
        KeyPathResponseConverter(path: "path/to/node")
    }
    
    var errorConverter: ResponseJsonConverter {
        KeyPathResponseConverter(path: "path/to/error")
    }
}

class MyRequest: Request {
    var responseConverter: ResponseJsonConverter {
        ClosureResponseConverter { response in
            // Return converted response for success response
        }
    }
    
    var errorConverter: ResponseJsonConverter {
        ClosureResponseConverter { response in
            // Return converted response for error response
        }
    }
}

class MyResponseConverter: ResponseJsonConverter {
    func convertedJson(from json: Any) throws -> Any {
        // Provide convertation and return converted code
    }
}

.package(url: "https://github.com/nerdzlab/NerdzNetworking")