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Javascript HTTP Requests

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February 03, 2017
Programming
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Javascript HTTP Requests

A basic introduction to how XMLHttpRequests work in Javascript. Written as a supplement to Eloquent Javascript Ch. 17 by Marijn Haverbeke.

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Fen Slattery

February 03, 2017
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Transcript

  1. HTTP Requests in Javascript Stephanie Marx

  2. None

  3. Constructor initializes an XMLHttpRequest

  4. Constructor initializes an XMLHttpRequest We open the request...

  5. Constructor initializes an XMLHttpRequest We open the request... send it...

  6. Constructor initializes an XMLHttpRequest We open the request... send it...

    ...and get something back!
  7. None
  8. None
  9. None

  10. method of request

  11. method of request POST GET PUT DELETE

  12. method of request POST CREATE GET READ PUT UPDATE DELETE

    DELETE

  13. method of request

  14. method of request URL

  15. method of request URL Should we do this asynchronously?

  16. method of request URL Should we do this asynchronously? true

    Notification of completed transaction is provided with event listeners false send() method doesn’t return until the response is received

  17. method of request URL Should we do this asynchronously?

  18. None
  19. None
  20. None
  21. None

  22. name of the header

  23. name of the header value to set as body

  24. name of the header value to set as body

  25. name of the header value to set as body

  26. None

  27. text/plain text/html application/json

  28. None
  29. None
  30. None

  31. request body

  32. request body GET null POST

  33. request body

  34. None
  35. None
  36. None