Error Handling

async function fetchProfile(profileUrl, apiKey) {
  const response = await fetch(
    `https://api.fetchin.io/api/v1/profile?profileUrlOrUrn=${encodeURIComponent(profileUrl)}`,
    { headers: { 'X-API-Key': apiKey } },
  );

  if (response.ok) return response.json();

  const { error, code } = await response.json();

  switch (code) {
    case 'MISSING_PARAMETER':
    case 'INVALID_PARAMETER':
    case 'INVALID_URN':
      throw new Error(`Bad request: ${error}`); // fix the request
    case 'INVALID_API_KEY':
    case 'UNAUTHENTICATED':
      throw new Error(`Auth: ${error}`);
    case 'QUOTA_EXHAUSTED':
      throw new Error('Out of credits — upgrade your plan.');
    case 'PROFILE_NOT_FOUND':
    case 'POST_NOT_FOUND':
    case 'COMPANY_NOT_FOUND':
      return null; // genuinely not found — don't retry
    default:
      throw new Error(`${code}: ${error}`);
  }
}

import requests

def fetch_profile(profile_url, api_key):
    resp = requests.get(
        'https://api.fetchin.io/api/v1/profile',
        headers={'X-API-Key': api_key},
        params={'profileUrlOrUrn': profile_url},
    )
    if resp.ok:
        return resp.json()

    body = resp.json()
    code = body.get('code')

    if code in ('MISSING_PARAMETER', 'INVALID_PARAMETER', 'INVALID_URN'):
        raise ValueError(body['error'])          # fix the request
    if code == 'QUOTA_EXHAUSTED':
        raise RuntimeError('Out of credits — upgrade your plan.')
    if code in ('PROFILE_NOT_FOUND', 'POST_NOT_FOUND', 'COMPANY_NOT_FOUND'):
        return None                                # not found — don't retry
    raise RuntimeError(f"{code}: {body['error']}")