I'm using Moya and need to print the cURL for a network request.
Usually, in Alamofire 4, I would do something like this:
let req = Alamofire.request(someURLRequestConvertible)
debugPrint(req) // will print cURL
My call site for Moya looks like this:
MyMoyaProvider.request(MyEndPoints.login(params)) { (result) in }
I've checked out the documentation for Moya, but I can't seem to get the results I'm looking for. I enabled the NetworkLoggingPlugin but still unsure how to print cURL for certain requests. Can someone help me find the proper way to print the Moya request's cURL to console?
If you initialize your NetworkLoggerPlugin, its cURL flag is set to false by default. Initializing it like NetworkLoggerPlugin(cURL: true), willSendRequest should print the cURL.
As per #BasThomas on GitHub: https://github.com/Moya/Moya/issues/1037#event-1027530791
For Moya 14.0.*
static fileprivate let provider = MoyaProvider<ApiService>(endpointClosure: { (target: ApiService) -> Endpoint in
let defaultEndpoint = MoyaProvider.defaultEndpointMapping(for: target)
switch target {
default:
let httpHeaderFields = ["Content-Type" : "application/json"]
return defaultEndpoint.adding(newHTTPHeaderFields: httpHeaderFields)
}
}, plugins: [
NetworkLoggerPlugin(configuration: .init(formatter: .init(), output: { (target, array) in
if let log = array.first {
print(log)
}
}, logOptions: .formatRequestAscURL))
])
Related
My problem is, when I execute the request it will happen nothing.
What I made:
I made an Api with .net core Api on a another PC and now I want to make a IOS App, that has access to the Api. (The API works I tested it with swagger and Insomnia) On the IOS app I made a put request with AlamoFire. And when I execute the request it's happening nothing. I watched the Network with Wireshark and there comes Nothing too.
When I Debug, it will step through the request Methode, but it goes nothing out to the API. And there are no errors.
// buttonClick will call this Methode
func requst() {
// testing parameters
let params: Parameters = [
"nfcId": 1,
"date" : "2021-04-12T09:47:12.053Z"
]
//
session.request("http://MyAPI/api/Guard/AddGuard", method: .put, parameters: params, headers: nil).validate(statusCode: 200 ..< 299)
}
I made an own Session wehere I pinned a certificate
private let certificates = [
"https://MyAPI:5001":
PinnedCertificatesTrustEvaluator(certificates: [Certificates.certificate], acceptSelfSignedCertificates: false, performDefaultValidation: true, validateHost: true)
]
private let session: Session
init(allHostsMustBeEvaluated: Bool) {
let serverTrustPolicy = ServerTrustManager(allHostsMustBeEvaluated: allHostsMustBeEvaluated, evaluators: certificates)
let config = URLSessionConfiguration.af.default
session = Session(configuration: config, serverTrustManager: serverTrustPolicy)
}
You haven't attached a response handler or called resume(), so no, the request isn't going to do anything. Adding something like responseDecodable will start the request automatically.
I have a working REST API based on this API Gateway tutorial. I'm able to successfully invoke it via the test functionality of the AWS Console; and I'm able to successfully invoke it via my simple iOS Swift 4.2 Xcode application using the iPhone XR simulator.
I know it's working via a real, live external call because I can see the Cloudwatch logs which always register a 200 response and is sending the results back to the Client.
My problem is really in understanding the Swift code, and I'm hoping that a Swift expert can help me understand how to unpack result in the code below.
Here's my code in ViewController.swift for invoking the REST API and attempting to print result to the console:
#IBAction func userInvokeApi(_ sender: UIButton) {
print("You clicked invoke api...")
let client = SVTLambdaGateClient.default()
client.calcGet(operand2: "3", _operator: "+", operand1: "5").continueWith{ (task: AWSTask?) -> AnyObject? in
if let error = task?.error {
print("Error occurred: \(error)")
return nil
}
if let result = task?.result {
// Do something with result
print("The result is... \(result)")
}
return nil
}
}
As pointed out in the comments below, I'm getting the following result because it's printing out the address of the object:
You clicked invoke api...
The result is... <AmplifyRestApiTest.Empty: 0x600002020770> {
}
(where AmplifyRestApiTest is the name of my Xcode project.)
UPDATE When I set a breakpoint on the print statement, this is what I see in the Debug pane:
UPDATE 2
When I type task?.result there are two viable properties as per this answer from the Amplify team: error and result. So, since my API responds successfully I am assuming I just don't know how to view result.
Can someone help me understand what steps I must take to access members of this class object?
Here is the corresponding method in the API Gateway-generated iOS Swift SDK code:
/*
#param operand2
#param _operator
#param operand1
return type: Empty
*/
public func calcGet(operand2: String, _operator: String, operand1: String) -> AWSTask<Empty> {
let headerParameters = [
"Content-Type": "application/json",
"Accept": "application/json",
]
var queryParameters:[String:Any] = [:]
queryParameters["operand2"] = operand2
queryParameters["operator"] = _operator
queryParameters["operand1"] = operand1
let pathParameters:[String:Any] = [:]
return self.invokeHTTPRequest("GET", urlString: "/calc", pathParameters: pathParameters, queryParameters: queryParameters, headerParameters: headerParameters, body: nil, responseClass: Empty.self) as! AWSTask<Empty>
}
I'm fairly certain this return type of Empty refers to the Empty model defined for the REST API as shown in the screenshot below. I think it's "empty" because the API doesn't alter the response from the Lambda function back to the Client. So, it's all pass-through. Indeed, the tutorial explains that the other models -- Output and Result -- are not used because it "relies on the passthrough behavior and does not use this model."
Any thoughts?
I created a nodejs lambda function in AWS and exposed it using APIGateway with methods GET, PUT, POST, and DELETE (all setup with proxy). All methods have been tested and work in AWS using APIGateway, and then outside of AWS using Postman.
First, I called the GET method for the endpoint in my Swift 4 project, and it is successful.
BUT I have tried just about everything to call the POST method in swift and cannot get it to execute successfully. This is what I am currently trying after researching online:
let awsEndpoint: String = "https://host/path"
guard let awsURL = URL(string: awsEndpoint) else {
print("Error: cannot create URL")
return
}
var postUrlRequest = URLRequest(url: awsURL)
postUrlRequest.httpMethod = "POST"
postUrlRequest.addValue("John Doe", forHTTPHeaderField: "name")
postUrlRequest.addValue("imageurl.com", forHTTPHeaderField: "imageUrl")
URLSession.shared.dataTask(with: postUrlRequest) { data, response, error in
guard let data = data else { return }
do {
guard let receivedTodo = try JSONSerialization.jsonObject(with: data,
options: []) as? [String: Any] else {
print("Error")
return
}
} catch let err{
print(err)
}
}.resume()
The response I get is ["message":"Internal Server Error"]. When I look at the logs in CloudWatch they are not very descriptive. The error log for the post call is:
"Execution failed due to configuration error: Malformed Lambda proxy response"
After researching this issue aws suggests to format the response in a specific way and I have updated my nodejs lambda function to mimmic this.
case "POST":
pool.getConnection(function(err, connection) {
const groupName = event.headers.name;
const imageUrl = event.headers.imageUrl;
var group = {Name: groupName, ImageUrl: imageUrl, IsActive:true, Created:date, Updated:date};
var query = "INSERT INTO Groups SET ?";
connection.query(query,group, function (error, results, fields) {
var responseBody = {
"key3": "value3",
"key2": "value2",
"key1": "value1"
};
var response = {
"statusCode": 200,
"headers": {
"my_header": "my_value"
},
"body": JSON.stringify(responseBody),
"isBase64Encoded": true
};
if (error) callback(error);
else callback(null, response)
connection.release();
});
});
break;
Like I said previously, this works when testing everywhere except swift 4. My GET call works with swift 4, so I do not think it is an issue with allowing anything in the info.plist but I could be wrong. I have tried just about everything, but cannot seem to get past this error.
I fixed this issue myself. After allowing ALL log output in API Gateway for that endpoint, I found that somewhere along the way my headers were being converted to all lowercase.
'imageUrl' became 'imageurl'
It was throwing an error because in my lambda function, it could not find 'imageUrl'
I think this is a conversion that is happening in APIGateway because I have never come across this issue with swift.
I am developing an iOS app using django rest framework for apis. But currently I am not be able to getting ahead when calling apis with authentication credentials.
I succeeded in calling the api using Postman and curl by setting Header as Authentication Bearer <token>.. but I continuously failed at calling it from iOS app. I am using Moya for calling api. And I don't know what I should do next.
What I tried: (when calling Moya)
let token = "abcde12345sometoken"
let plugin = AccessTokenPlugin(tokenClosure: token)
let provider = MoyaProvider<AccountAPI>(plugins : [plugin])
provider.request(.getAccountProfile(oauth_id: oauth_id, provider: "facebook")) { (result) in
// doing something with result
}
and configured API as:
extension AccountAPI : TargetType, AccessTokenAuthorizable {
// codes conforming variables to TargetType protocol
public var authorizationType: AuthorizationType {
switch self {
case .getFacebookAccountToken:
return .none
default:
return .bearer
}
}
public var headers: [String: String]? {
switch self {
case .getFacebookAccountToken, .getEmailAccountToken: // post requests
return ["Content-type":"application/x-www-form-urlencoded"]
default:
return ["Content-type":"application/json"]
}
}
}
Is there anything I should consider when using Moya for authentication or maybe with Info.plist and so on?
Or the document says this approach is for JWT token, and maybe my method is not for JWT and something else..? Give me some advice!
For my case, I use
Moya 12.0.1
MultiTarget
example:
plugins = [AccessTokenPlugin(tokenClosure: {
let token = ...
return token
})]
MoyaProvider<MultiTarget>(
plugins: plugins
)
.request(MultiTarget(myAPI)) {
...
}
But it never calls tokenClosure
Solution
you need to add this extension
extension MultiTarget: AccessTokenAuthorizable {
public var authorizationType: AuthorizationType {
guard let target = target as? AccessTokenAuthorizable else { return .none }
return target.authorizationType
}
}
source: https://github.com/Moya/Moya/blob/master/Sources/Moya/Plugins/AccessTokenPlugin.swift#L62
After a few hours of trying this and that.. I found out that it was the api endpoint redirects itself based on the content-language.. so the header that I set is dead when being redirected. So either setting the i18n url in advance or setting the content-language header would solve my problem.
I am trying to use Alamofire to use the Google Translate api.
Here is the code I am trying to use:
let textToTranslate = "你好"
let parameters = ["key":"MY_PRIVATE_IOS_APP_KEY","q":"\(textToTranslate)",
"source":"zh-CN","target":"en"]
Alamofire.request(.GET, "https://www.googleapis.com/language/translate/v2/languages", parameters:parameters)
.responseJSON
{ (_, _, JSON, _) -> Void in
let translatedText: String? = JSON?.valueForKeyPath("data") as String?
println(translatedText)
}
The console keeps printing nil.
Also, in the Google Translate API Usage Report it says I have "Client Errors".
This is the kind of output I get when I try this in the browser:
{
"data": {
"translations": [
{
"translatedText": "hello"
}
]
}
}
What am I missing or doing wrong?
The URL that you should GET is:
https://www.googleapis.com/language/translate/v2?parameters
On your code I see the URL:
https://www.googleapis.com/language/translate/v2/languages?parameters