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Stack flows in you

๐ŸŸจ JavaScript/๊ฐœ๋…

[์ฝ”๋”ฉ์• ํ”Œ] ajax๋กœ ์„œ๋ฒ„์™€ ๋ฐ์ดํ„ฐ ์ฃผ๊ณ ๋ฐ›๊ธฐ (1)

2023. 3. 27. 13:21

์„œ๋ฒ„์— ์š”์ฒญํ•˜๋Š” ๋ฒ•

  1. ์–ด๋–ค ๋ฐ์ดํ„ฐ์ธ์ง€ url์„ ์ œ๋Œ€๋กœ ์ž‘์„ฑํ•œ๋‹ค (ํ‹€๋ฆฐ url๋กœ ์š”์ฒญ์‹œ 404error๊ฐ€ ๋œฌ๋‹ค)
  2. ์–ด๋–ค ๋ฐฉ๋ฒ•์œผ๋กœ ์š”์ฒญํ• ์ง€ ๊ฒฐ์ •ํ•œ๋‹ค (GET/POST .. PUT, DELETE ๋“ฑ)

GET

GET ์š”์ฒญ์€ ์„œ๋ฒ„์— ์žˆ๋˜ ๋ฐ์ดํ„ฐ๋ฅผ ์ฝ๊ณ  ์‹ถ์„ ๋•Œ ์ฃผ๋กœ ์‚ฌ์šฉํ•œ๋‹ค.
๋ธŒ๋ผ์šฐ์ € ์ฃผ์†Œ์ฐฝ์— url์„ ์ ์œผ๋ฉด ๊ทธ๊ณณ์œผ๋กœ GET ์š”์ฒญ์„ ๋‚ ๋ฆฐ๋‹ค.

POST

POST ์š”์ฒญ์€ ์„œ๋ฒ„๋กœ ๋ฐ์ดํ„ฐ๋ฅผ ๋ณด๋‚ด๊ณ  ์‹ถ์„ ๋•Œ ์ฃผ๋กœ ์‚ฌ์šฉํ•œ๋‹ค.

POST ์š”์ฒญ์„ ๋‚ ๋ฆฌ๊ณ  ์‹ถ์œผ๋ฉด form ํƒœ๊ทธ + method="post" + action="url"์„ ์ด์šฉํ•˜๋ฉด ๋œ๋‹ค.

<form action="/data" method="post">
</form>

GET๊ณผ POST๋Š” ์š”์ฒญํ•˜๋ฉด ๋ธŒ๋ผ์šฐ์ €๊ฐ€ ์ƒˆ๋กœ๊ณ ์นจ๋œ๋‹ค.


AJAX

์„œ๋ฒ„์— GET, POST ์š”์ฒญ์„ ํ•  ๋•Œ ์ƒˆ๋กœ๊ณ ์นจ ์—†์ด ๋ฐ์ดํ„ฐ๋ฅผ ์ฃผ๊ณ ๋ฐ›์„ ์ˆ˜ ์žˆ๊ฒŒ ๋„์™€์ฃผ๋Š” ๋ธŒ๋ผ์šฐ์ € ๊ธฐ๋Šฅ์ด๋‹ค. (ex. ๋Œ“๊ธ€์„ ์„œ๋ฒ„๋กœ ์ „์†กํ•˜๊ฑฐ๋‚˜, ๋ชฉ๋ก ํŽผ์ณ ๋”๋ณด๊ธฐ ๋“ฑ)

๋ฐ์ดํ„ฐ ์š”์ฒญํ•˜๊ธฐ

๊ธฐ๋ณธํ•จ์ˆ˜๋Š” fetch(), jquery๋Š” $.get() ์•ˆ์— url์„ ๊ธฐ์ž…ํ•œ๋‹ค.

then()(ํ˜น์€ done())์•ˆ์— ์ฝœ๋ฐฑํ•จ์ˆ˜ ๋„ฃ๊ณ  ํŒŒ๋ผ๋ฏธํ„ฐ๋ฅผ ๋งŒ๋“ค๋ฉด ๋ฐ์ดํ„ฐ ์š”์ฒญ ์„ฑ๊ณต์‹œ ๊ฑฐ๊ธฐ์— ๋ฐ์ดํ„ฐ๊ฐ€ ๋“ค์–ด๊ฐ„๋‹ค. (์š”์ฒญ ์„ฑ๊ณต์‹œ done ์•ˆ์— ์žˆ๋Š” ์ฝ”๋“œ๋ฅผ ์‹คํ–‰ํ•ด์ค€๋‹ค.)
์š”์ฒญ ์‹คํŒจ์‹œ catch(ํ˜น์€ fail()) ์•ˆ์— ์žˆ๋Š” ์ฝ”๋“œ๋ฅผ ์‹คํ–‰ํ•ด์ค€๋‹ค.

// ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ๊ธฐ๋ณธํ•จ์ˆ˜ ๋ฒ„์ „
fetch('https://codingapple1.github.io/price.json')
  .then(res => res.json())
  .then(function(data){
    console.log(data)
  })
  .catch(function(error){
    console.log('์‹คํŒจํ•จ')
  });

์›๋ž˜ ์„œ๋ฒ„์™€ ๋ฐ์ดํ„ฐ๋ฅผ ์ฃผ๊ณ ๋ฐ›์„ ๋•Œ๋Š” ๋ฌธ์ž๋งŒ ์ฃผ๊ณ ๋ฐ›์„ ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— array, object ๋“ฑ์ด ์ „์†ก์ด ๋ถˆ๊ฐ€๋Šฅํ•˜๋‹ค. ๊ทธ๋ ‡๊ธฐ ๋•Œ๋ฌธ์— JSON์œผ๋กœ ๋ฐ”๊ฟ”์„œ ์ „์†กํ•  ์ˆ˜ ์žˆ๋‹ค. (JSON์€ ๋ฌธ์ž๋กœ ์ธ์‹ํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์„œ๋ฒ„์™€ ๋ฐ์ดํ„ฐ์ฃผ๊ณ ๋ฐ›๊ธฐ๊ฐ€ ๊ฐ€๋Šฅํ•˜๋‹ค)

// jquery ๋ฒ„์ „
$.get('https://codingapple1.github.io/hello.txt')
  .done(function(data){
    console.log(data)
  })
  .fail(function(error){
    console.log('์‹คํŒจ')
  });

jquery์˜ $.get()์€ JSON์œผ๋กœ ์ž๋ฃŒ๊ฐ€ ๋„์ฐฉํ•˜๋ฉด ์•Œ์•„์„œ array/object ์ž๋ฃŒ๋กœ ๋ฐ”๊ฟ”์ค€๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๊ธฐ๋ณธํ•จ์ˆ˜ fetch() ๋“ฑ์€ JSON์œผ๋กœ ์ž๋ฃŒ๊ฐ€ ๋„์ฐฉํ•˜๋ฉด res.json() ์ฝ”๋“œ๋ฅผ ๋„ฃ์–ด์ฃผ์–ด์•ผ array/object ์ž๋ฃŒ๋กœ ๋ฐ”๊ฟ€ ์ˆ˜ ์žˆ๋‹ค.

JSON์„ object๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ
https://sunshineyellow.tistory.com/53

 

[๋“œ๋ฆผ์ฝ”๋”ฉ] JSON to Object (parse)

JSON to Object parse(json) const coder = { name: 'Noran', language: 'Javascript', height: null, birthDate: new Date(), sayhi: () => { console.log(`Hello, I'm ${name}!`); }, }; console.clear(); json = JSON.stringify(coder); const obj = JSON.parse(json); con

sunshineyellow.tistory.com


๋ฐ์ดํ„ฐ ๋ณด๋‚ด๊ธฐ

$.post('url~~', {name : 'Noran'})

post๋„ .done()์„ ๋ถ™์ด๋Š” ๋“ฑ ๊ฐ€๋Šฅํ•˜๋‹ค.

object๋ฅผ JSON์œผ๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ

https://sunshineyellow.tistory.com/52

 

[๋“œ๋ฆผ์ฝ”๋”ฉ] Object to JSON (stringify)

Object to JSON stringify(obj) stringify๋Š” ๋ฐ์ดํ„ฐ๋ฅผ stringํƒ€์ž…์œผ๋กœ ๋ณ€ํ™˜ํ•œ๋‹ค. let json = JSON.stringify(true); console.log(json); //"true" let json = JSON.stringify(['Noran','Paran']); console.log(json); //["Noran","Paran"] ํ•œ๊ฐœ์˜ single quot

sunshineyellow.tistory.com


์ถœ์ฒ˜ : ์ฝ”๋”ฉ์• ํ”Œ https://codingapple.com/ / MDN https://developer.mozilla.org/ko/

์ €์ž‘์žํ‘œ์‹œ ๋น„์˜๋ฆฌ ๋™์ผ์กฐ๊ฑด (์ƒˆ์ฐฝ์—ด๋ฆผ)

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