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Using REST API to edit issue - CURL succeeds, programmatically fails

I'm trying to use the Jira REST API to update issues programmatically via a MacOS program, written in Swift. I have a Jira API Token and have succeeded using CURL. Here is the command: 

curl --request PUT \
  --url '' \
  --user '' \
  --header 'Accept: application/json' \
  --header 'Content-Type: application/json' \
  --data '{
"update": {
"timetracking": [
"edit": {
"originalEstimate": "1w 1d"

Where zzz is the API Token. This works and the field is updated correctly. 

The code version mirrors this as closely as I can, but fails with the error 

Response: {"errorMessages":["Issue does not exist or you do not have permission to see it."],"errors":{}}

Here is the Swift code: 

        let tokenString = ""

        guard let encodedTokenString = .utf8)?.base64EncodedData() else { fatalError("Can't encode token") }

        let authString = String("Token token=\(encodedTokenString)")

        guard let url = URL(string: "")

        else {
            fatalError("Couldn't create a static URL")

        let request = NSMutableURLRequest(url: url)

        request.addValue(authString, forHTTPHeaderField: "Authorization")

        request.addValue("application/json", forHTTPHeaderField: "Content-Type")

        request.httpMethod = "PUT"

        let dataString = "{\"update\": {\"timetracking\": [{\"edit\": {\"originalEstimate\": \"1w 1d\"}}]}}".utf8

        let body = Data(dataString)    

        request.httpBody = body

        let session = URLSession.shared

        session.dataTask(with: request as URLRequest) { (data, response, error) -> Void in

            guard let data = data, let responseString = NSString(data: data, encoding: String.Encoding.utf8.rawValue) as String?, !responseString.isEmpty else {
                print("No valid response!")
            print("Response: " + responseString)


What am I missing? 

1 answer

1 accepted

0 votes
Answer accepted
DPK J Community Leader Sep 17, 2020

@Janene Pappas I'm not a Swift expert but your 'authString' have some issues.

let authString = String("Token token=\(encodedTokenString)")

This should be (in my opinion)

let authString = String("Basic \(encodedTokenString)")

ahhhh thank you!

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