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What Are The Difference Between Get And Post?

The GET and POST methods are both HTTP request methods used by web browsers and clients to interact with web servers, but they differ in how they send data and their intended use cases.

1. Data Transmission:

  • GET:
    • Sends data as part of the URL (in the query string, after the ? symbol).
    • Data is visible in the URL, which can be bookmarked or cached.
    • Limited in size (URL length restrictions, usually around 2000 characters).
  • POST:
    • Sends data in the body of the request, not in the URL.
    • Data is not visible in the URL, making it more secure for sensitive information.
    • Can handle large amounts of data (limited only by server or browser configuration).
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2. Use Cases:

  • GET:
    • Used for retrieving data or requesting information from the server.
    • Should be idempotent (repeating the same request should yield the same result).
    • Example: Searching for a term on a search engine or requesting a page.
  • POST:
    • Used for submitting data to be processed by the server (e.g., forms, file uploads).
    • Not idempotent, meaning repeated requests may produce different results (e.g., making a purchase or creating an account).
    • Example: Submitting a contact form or making a payment.

3. Caching:

  • GET:
    • Requests can be cached by browsers or proxies because data is included in the URL.
  • POST:
    • Requests are generally not cached because data is sent in the body, and caching might interfere with the request’s integrity.
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4. Security:

  • GET:
    • Less secure because data is exposed in the URL and can be seen in browser history, logs, or shared links.
  • POST:
    • More secure for transmitting sensitive data since the data is not included in the URL.

5. Bookmarking:

  • GET:
    • Can be bookmarked because the data is part of the URL.
  • POST:
    • Cannot be bookmarked because the data is in the body of the request, and the request does not have a URL that can be saved.

Summary:

  • GET is primarily for retrieving data, with visible parameters in the URL, suitable for read-only operations.
  • POST is used for submitting data, like forms or file uploads, where the data is sent in the request body, and it is more secure and capable of handling large amounts of data.
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