$fetch not working

try {
    const url = `${BASE_URL}/SSORESTNEW/TokenDetail`;
    const options = {
      method: 'GET',
      headers: {
        'Authorization': `Basic ${Buffer.from(`${ssoDefaultUsername}:${ssoDefaultPassword}`).toString('base64')}`,
        'content-type': 'application/json',
        'SSO-TOKEN': token,
      },
    };
    const response = await fetch(url, options);
    const data: TokenDetailResponse = await response.json();
    console.log('[getTokenDetail] Response:', data);
    return data;
  } catch (error) {
    console.error('Error fetching token details:', error);
    throw error;
  }

try {
    const data = await $fetch<TokenDetailResponse>(`${BASE_URL}/SSORESTNEW/TokenDetail`, {
      method: 'GET',
      headers: {
        'Authorization': `Basic ${Buffer.from(`${ssoDefaultUsername}:${ssoDefaultPassword}`).toString('base64')}`,
        'content-type': 'application/json',
        'SSO-TOKEN': token,
      },
    });
    return data;
  } catch (error) {
    console.error('Error fetching token details:', error);
    throw error;
  }

 'Authorization': `Basic ${btoa(`${ssoDefaultUsername}:${ssoDefaultPassword}`)}`,