/// <summary>
/// Manages the Metabase session token. Gets/renews token as needed.
/// </summary>
/// <param name="settings"></param>
/// <param name="initialToken">
/// Optional. If defined, the API clients attempts to use this token instead of creating a new one.
/// </param>
public MetabaseSessionTokenManager(MetabaseApiSettings settings, string initialToken)
{
this._settings = settings;
var handler = settings.IgnoreSSLErrors
? new HttpClientHandler
{
ServerCertificateCustomValidationCallback = (a, b, c, d) => true,
}
: new HttpClientHandler();
this._http = new HttpClient(handler)
{
BaseAddress = settings.MetabaseApiUrl,
};
if (settings.MetabaseApiTimeout.HasValue)
{
try
{
this._http.Timeout = settings.MetabaseApiTimeout.Value;
}
catch (Exception e)
{
throw new Exception("Error setting API timeout to value " + settings.MetabaseApiTimeout.Value, e);
}
}
if (string.IsNullOrEmpty(initialToken) == false)
{
sessionToken = new AsyncLazy <string>(() => Task.FromResult(initialToken));
}
else
{
InvalidateSessionToken();
}
}
/// <summary>
/// Manages the Metabase session token. Gets/renews token as needed.
/// </summary>
/// <param name="settings"></param>
/// <param name="initialToken">
/// Optional. If defined, the API clients attempts to use this token instead of creating a new one.
/// </param>
public MetabaseSessionTokenManager(MetabaseApiSettings settings, string initialToken)
{
this._settings = settings;
var handler = new HttpClientHandler {
ServerCertificateCustomValidationCallback = (a, b, c, d) => true,
};
this._http = new HttpClient(handler)
{
BaseAddress = settings.MetabaseApiUrl,
};
if (string.IsNullOrEmpty(initialToken) == false)
{
sessionToken = new AsyncLazy <string>(() => Task.FromResult(initialToken));
}
else
{
InvalidateSessionToken();
}
}
static async Task <MetabaseApi> InitApi(MetabaseApiSettings apiSettings)
{
const string filename = "metabase-token.txt";
string GetInitialToken()
{
try
{
return(File.ReadAllText(filename));
}
catch (Exception e)
{
return(null);
}
}
// get an existing token if available to work around Metabase throttling
// https://github.com/metabase/metabase/issues/4979
var MetabaseInitialToken = GetInitialToken();
var metabaseSession = new MetabaseSessionTokenManager(apiSettings, MetabaseInitialToken);
var api = new MetabaseApi(metabaseSession);
try
{
await api.GetAllDashboards(); // attempt an API call to either validate or renew the session token
var token = await metabaseSession.CurrentToken();
File.WriteAllText(filename, token);
return(api);
}
catch (Exception e)
{
throw new Exception("Error initialising Metabase API for " + apiSettings.MetabaseApiUrl, e);
}
}
private Config(MetabaseApiSettings metabaseApiSettings)
{
MetabaseApiSettings = metabaseApiSettings;
}
public TestQuestions(MetabaseApiSettings metabaseApiSettings) : base(metabaseApiSettings)
{
}
public Import(MetabaseApiSettings MetabaseApiSettings, string inputFilename, IReadOnlyDictionary <DatabaseId, DatabaseId> databaseMapping) : base(MetabaseApiSettings)
{
InputFilename = inputFilename;
DatabaseMapping = databaseMapping;
}
public Export(MetabaseApiSettings MetabaseApiSettings, string outputFilename) : base(MetabaseApiSettings)
{
OutputFilename = outputFilename;
}
public Export(MetabaseApiSettings metabaseApiSettings, string outputFilename, bool excludePersonalCollections) : base(metabaseApiSettings)
{
OutputFilename = outputFilename;
ExcludePersonalCollections = excludePersonalCollections;
}
