Getting error 500 when creating SSO embed URL using the Golang SDK.

Hello,

I am having trouble using the Go SDK when trying to create a SSO embedded URL. I have accomplished to successfuly create a valid SSO embed URL using a standard call call after reading the documentation.

When I am trying to use the SDK to create the embed URL, I am delivering the exact same parameters I am using when I am using the standard API call to the EmbedSSoParams struct and then uses the sdk.CreateSspEmbedUrl method, but I am getting an error 500 from the server:

{
    "error": {
        "code": 500,
        "messages": "response error. status=500 Internal Server Error. error=An unhandled lowlevel error occurred. The application logs may have details.\n"
    }
}

As you can see, I can’t really understand from this message what is wrong with my code. Help would be appreciated, thanks!

Code with dummy values:

    // api settings initialized and verified.

    sdk := v4.NewLookerSDK(rtl.NewAuthSession(apiSettings))

    firstName := "jon"
    lastName := "doe"
    permissions := []string{"embed_browse_spaces", "access_data", "download_without_limit", "schedule_look_emails", "see_drill_overlay", "see_lookml_dashboards", "see_looks", "see_user_dashboards", "schedule_external_look_emails"}
    groupIDs := ["1", "2", "3"]
    externalGroupId := "externalGroupID"
    forceLogoutLogin := false
    sessionLength := int64((1 * time.Hour).Seconds())
    timeZone := "UTC"
    model := "someModel"
    secretID := "secret from the SSO embed admin page"
    embedSSOParams := v4.EmbedSsoParams{
        TargetUrl:        fmt.Sprintf("%s/%s/%s", apiSettings.BaseUrl, resource, resourceID),
        SessionLength:    &sessionLength,
        ForceLogoutLogin: &forceLogoutLogin,
        ExternalUserId:   &usr.Email,
        FirstName:        &firstName,
        LastName:         &lastName,
        UserTimezone:     &timeZone,
        Permissions:      &permissions,
        Models:           &[]string{model},
        GroupIds:         &groupIDs,
        ExternalGroupId:  &externalGroupId,
        UserAttributes:   &map[string]any{},
        SecretId:         &secretID,
    }
    embedUrlResponse, err := sdk.CreateSsoEmbedUrl(embedSSOParams, &apiSettings)
    if err != nil {
        return "", err
    }

    return *embedUrlResponse.Url, nil