404 Error on Rest API Call

Jeret Shuck_hfty3t

I've read just about ever bit of documentation I can find however I'm unable to get this to work. I'm using powershell to attempt a REST-API GET method;

# Create username / API key pair, then encode it
$baseString = "first.last@mydomain.com:<myAPIKey>"
$baseBytes = [System.Text.Encoding]::Unicode.GetBytes($baseString)
$base64 = [System.Convert]::ToBase64String($baseBytes)

# Build headers
$authHeaders = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$authHeaders.Add('Basic', ('Basic {0}' -f $base64))
$authHeaders.Add('Accept', 'application/json')

# Call Rest API
Invoke-RestMethod -Uri "https://mydomain.atlassian.net/rest/api/3/issue/TS-1000" -Method Get -Headers $authHeaders

 

Each time I'm getting a "Invoke-RestMethod : The remote server returned an error: (404) Not Found." error.

 

URL works without issue or a 404 error in a browser as seen:

Andy Heinzer

Hi Jeret,

I see that you're using Powershell in order to try to make a REST API call to a Jira Cloud site, but that this is not working as expected.  I took a closer look at your steps to make this work and I believe I see the problem here.

You are using the base64 encoded string of emailaddress:API_Token, however the way you encode that string is technically different from the way we state to encode it in our Basic Auth for REST APIs documentation.

To highlight this difference I used an example string of 'first.last@mydomain.com:<myAPIKey>' and in the first example I used the documented method, and the second I used your method.  In order for this to work correctly I'd expect the same output

Windows PowerShell
Copyright (C) 2009 Microsoft Corporation. All rights reserved.

PS C:\Users\IEUser> $Text = `first.last@mydomain.com:<myAPIKey>'
PS C:\Users\IEUser> $Bytes = [System.Text.Encoding]::UTF8.GetBytes($Text)
PS C:\Users\IEUser> $EncodedText = [Convert]::ToBase64String($Bytes)
PS C:\Users\IEUser> $EncodedText
Zmlyc3QubGFzdEBteWRvbWFpbi5jb206PG15QVBJS2V5Pg==
PS C:\Users\IEUser>
PS C:\Users\IEUser>
PS C:\Users\IEUser> $baseString = "first.last@mydomain.com:<myAPIKey>"
PS C:\Users\IEUser> $baseBytes = [System.Text.Encoding]::Unicode.GetBytes($baseString)
PS C:\Users\IEUser> $base64 = [System.Convert]::ToBase64String($baseBytes)
PS C:\Users\IEUser> $base64
ZgBpAHIAcwB0AC4AbABhAHMAdABAAG0AeQBkAG8AbQBhAGkAbgAuAGMAbwBtADoAPABtAHkAQQBQAEkASwBlAHkAPgA=

But as you can see, your example is encoding this string much differently.   I suspect this might be due to the use of the unicode.getbytes instead of the UTF8 we are expecting here.  I also tried with double quotes instead of single, but that doesn't seem to make a difference.

Try instead to use this method for encoding your credentials:

$Text = ‘user@example.com:api_token_string’
$Bytes = [System.Text.Encoding]::UTF8.GetBytes($Text)
$EncodedText = [Convert]::ToBase64String($Bytes)
$EncodedText

The use of the incorrect credentials here would certainly be a plausible explanation for the 404 error you see here.  Try that and let me know the results.

Andy