POST

HTTP- POST . Content-Type.

PUT POST , PUT : , ( ), POST , , .

POST HTML . element or the formenctype attribute of the <input> or <button> elements:"> enctype <form> formenctype <input> <button>:

• application/x-www-form-urlencoded: , '&', '=' . - - percent encoded: , ( multipart/form-data)
• multipart/form-data: ("body part"), ("boundary"), . Content-Disposition
• text/plain

POST , HTML-, , XMLHttpRequest . HTTP 1.1, POST :

• , , ;
• ;
• , , , ;
• .

HTML-

POST /index.html

POST / HTTP/1.1
Host: foo.com
Content-Type: application/x-www-form-urlencoded
Content-Length: 13

say=Hi&to=Mom

POST /test.html HTTP/1.1
Host: example.org
Content-Type: multipart/form-data;boundary="boundary"

--boundary
Content-Disposition: form-data; name="field1"

value1
--boundary
Content-Disposition: form-data; name="field2"; filename="example.txt"

value2
--boundary--