[GH-ISSUE #542] Result Cannot convert value of type '(_) throws -> ()' to expected argument type

Originally created by @saroar on GitHub (Aug 20, 2019). Original GitHub issue: https://github.com/OAuthSwift/OAuthSwift/issues/542 ###Error: ``` Cannot convert value of type '(_) throws -> ()' to expected argument type 'OAuthSwiftHTTPRequest.CompletionHandler?' (aka 'Optional<(Result<OAuthSwiftResponse, OAuthSwiftError>) -> ()>') ``` https://prnt.sc/ov83nt ### Description: old code ``` func getProfilePerfect(_ oauthswift: OAuth2Swift, url: String, success: @escaping () -> Void ) { _ = oauthswift.client.get( url, success: { response in let data = JSON(data: response.data) PerfectLocalAuth.name = "\(data["firstname"].stringValue) \(data["lastname"].stringValue)" PerfectLocalAuth.firstname = data["firstname"].stringValue PerfectLocalAuth.lastname = data["lastname"].stringValue success() }, failure: { error in print(error) } ) } ``` new code ``` func getProfilePerfect(_ oauthswift: OAuth2Swift, url: String, success: @escaping () -> Void ) { _ = oauthswift.client.get( url ) { result in switch result { case .success(let response): let data = try JSON(data: response.data) PerfectLocalAuth.name = "\(data["firstname"].stringValue) \(data["lastname"].stringValue)" PerfectLocalAuth.firstname = data["firstname"].stringValue PerfectLocalAuth.lastname = data["lastname"].stringValue success() case .failure(let error): debugPrint(#line, error) } } } ``` ### OAuth Provider? (Twitter, Github, ..): facebook and vk ### OAuth Version: - [ ] Version 1 - [x ] Version 2 ### OS (Please fill the version) : - [x] iOS : - [ ] OSX : - [ ] TVOS : - [ ] WatchOS : ### Installation method: - [ ] Carthage - [x ] CocoaPods - [ ] Swift Package Manager - [ ] Manually ### Library version: - [ ] head - [x ] v2.0.0 - [ ] v1.4.1 - [ ] v1.2.1 - [ ] v1.2 (Swift 4.0) - [ ] v1.0.0 - [ ] v0.6 - [ ] other: (Please fill in the version you are using.) ### Xcode version: - [x ] 11.x (Swift 5.1) - [ ] 10.x (Swift 5.0) - [ ] 10.x (Swift 4.1) - [ ] 9.3 (Swift 4.1) - [ ] 9.0 (Swift 4.0) - [ ] other: (Please fill in the version you are using.) - [ ] objective c

kerem commented

2026-03-03 16:48:03 +03:00

Owner

Originally created by @saroar on GitHub (Aug 20, 2019).
Original GitHub issue: https://github.com/OAuthSwift/OAuthSwift/issues/542

###Error:

Cannot convert value of type '(_) throws -> ()' to expected argument type 'OAuthSwiftHTTPRequest.CompletionHandler?' (aka 'Optional<(Result<OAuthSwiftResponse, OAuthSwiftError>) -> ()>')

https://prnt.sc/ov83nt

Description:

old code

    func getProfilePerfect(_ oauthswift: OAuth2Swift, url: String, success: @escaping () -> Void ) {
        _ = oauthswift.client.get(
            url, success: { response in
                let data = JSON(data: response.data)
                PerfectLocalAuth.name 		= "\(data["firstname"].stringValue) \(data["lastname"].stringValue)"
                PerfectLocalAuth.firstname 	= data["firstname"].stringValue
                PerfectLocalAuth.lastname 	= data["lastname"].stringValue
                success()
        }, failure: { error in
            print(error)
        }
        )
    }

new code

    func getProfilePerfect(_ oauthswift: OAuth2Swift, url: String, success: @escaping () -> Void ) {
        _ = oauthswift.client.get( url ) { result in
            switch result {
            case .success(let response):
                let data = try JSON(data: response.data)
                PerfectLocalAuth.name         = "\(data["firstname"].stringValue) \(data["lastname"].stringValue)"
                PerfectLocalAuth.firstname     = data["firstname"].stringValue
                PerfectLocalAuth.lastname     = data["lastname"].stringValue
                success()
            case .failure(let error):
                debugPrint(#line, error)
            }
        }
    }

OAuth Provider? (Twitter, Github, ..):

facebook and vk

OAuth Version:

Version 1
[x ] Version 2

OS (Please fill the version) :

iOS :
OSX :
TVOS :
WatchOS :

Installation method:

Carthage
[x ] CocoaPods
Swift Package Manager
Manually

Library version:

head
[x ] v2.0.0
v1.4.1
v1.2.1
v1.2 (Swift 4.0)
v1.0.0
v0.6
other: (Please fill in the version you are using.)

Xcode version:

[x ] 11.x (Swift 5.1)
10.x (Swift 5.0)
10.x (Swift 4.1)
9.3 (Swift 4.1)
9.0 (Swift 4.0)
other: (Please fill in the version you are using.)
objective c

kerem closed this issue

2026-03-03 16:48:04 +03:00

Author

@saroar commented on GitHub (Aug 20, 2019):

all is good sorry for post

@saroar commented on GitHub (Aug 20, 2019): all is good sorry for post

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[GH-ISSUE #542] Result Cannot convert value of type '(_) throws -> ()' to expected argument type #360