• Status codes
• 200
  • 200 - ok
    • 200 ok means everything went well on the server side.
  • 201 - created
    • create is another thumbsup when something new was created
  • 204 - No content
    • it means when we delete a sent data it means that that task is done and it worked there is no data to send back.
• 400
  • 400 - something went wrong
    • here the server says that check what data is sent
  • 400 - bad request
    • something in the request doesn’t make sense
  • 401 - unauthorized
    • it means we are missing the right credentials
  • 403 - forbidden
    • giving access to only the privileged
  • 404 - Not found
    • request file is not there
  • 429 - to many requests
    • server letting you know that slow down we are sending requests too fast and hitting rate limits for busy apis
• 500
  • 500 - internal server error
    • these errors require deeper investigation. they are not easy to spot. we need to dig into server logs to find what is wrong
  • 502 - bad gateway
    • this hints issues between servers, like a proxy failing to get a response. example - using nginx as a reverse proxy and it can’t get a valid response from the application server this could be due to server overloads, network glithes or just miscofiguration.
  • 503 - service unavailable
    • the server cannot handle requests rightnow due to maintenance or traffic overload.