refreshToken method
Refreshes the access token
Implementation
Future<AuthToken> refreshToken() async {
final refresh = tokenStorage.refreshToken;
if (refresh == null) {
throw const AuthException('No refresh token available');
}
final response = await _client.post(
Uri.parse('$baseUrl/auth/refresh'),
headers: {'Content-Type': 'application/json'},
body: jsonEncode({'refreshToken': refresh}),
);
final data = _handleResponse(response);
final token = AuthToken.fromJson(data);
await tokenStorage.saveTokens(
accessToken: token.accessToken,
refreshToken: token.refreshToken,
);
return token;
}