Issue with Missing refresh_token in Spotify iOS SDK Authorization Flow

[Victorsaccucci]

Plan

Free/Premium

Country

Brasil

Device

Macbook M2 2023

Operating System

macOS Sonoma 14.6.1

I am developing an iOS application using the Spotify iOS SDK and am facing difficulties obtaining the refresh_token after the authorization request. I followed the steps described in the documentation and successfully retrieve the access_token, but the refresh_token, which theoretically should be returned along with the access_token, is missing from the response.

Here are more details about my implementation:

• I used the authorization flow that involves requesting access permission via OAuth.
• After authorization, I receive the access_token correctly, but the refresh_token is not included in the API response.
• The flow I'm using is based on the example provided in the official SDK documentation.

Could you please guide me on what might be causing this issue or provide more information on how to resolve it?

Note: I used a print statement to check what I was getting as a return from the setAccessToken method, and this was the result: 

func setAccessToken(from url: URL) {

        let parameters = appRemote.authorizationParameters(from: url)

        //Print Parameters

        if let parameters = parameters {

            print("Authorization Parameters:")

            for (key, value) in parameters {

                print("\(key): \(value)")

            }

        }

        if let accessToken = parameters?[SPTAppRemoteAccessTokenKey] {

            appRemote.connectionParameters.accessToken = accessToken

            self.accessToken = accessToken

            print("Access Token: \(accessToken)")

        } else if let errorDescription = parameters?[SPTAppRemoteErrorDescriptionKey] {

            print("Error: \(errorDescription)")

        }

    }

Result I got:
{
"expires_in": 3600,
"token_type": "Bearer",
"spotify_version": "8.9.68.490",
"access_token": "BQAPe....vA9cdtAI-wE"
}

Result I was expecting:
{
"expires_in": 3600,
"token_type": "Bearer",
"spotify_version": "8.9.68.490",
"access_token": "BQAPe...vA9cdtAI-wE",
"refresh_token": "AQC2skl...P9GfhTnki9"
}

Thank you in advance for your help!