Flask
- Flask 프레임워크
서버를 구동시켜주는 편한 코드 모음. 서버를 구동하는데 필요한
복잡한 일들을 쉽게 가져다 쓸 수 있다.
- Flask 기본 폴더구조
프로젝트 폴더 안에,
ㄴstatic 폴더 (이미지, css파일을 넣어둡니다)
ㄴtemplates 폴더 (html파일을 넣어둡니다)
ㄴapp.py 파일
- Flask 기초(URL 나눠보기)
from flask import Flask
app = Flask(__name__)
@app.route('/')
def home():
return 'This is Home!'
@app.route('/mypage')
def mypage():
return 'This is My Page!'
if __name__ == '__main__':
app.run('0.0.0.0',port=5000,debug=True)
- Flask 기초(HTML 파일 불러오기)
from flask import Flask, render_template
app = Flask(__name__)
## URL 별로 함수명이 같거나,
## route('/') 등의 주소가 같으면 안됩니다.
@app.route('/')
def home():
return render_template('index.html')
if __name__ == '__main__':
app.run('0.0.0.0', port=5000, debug=True)
API
- GET
→ 통상적으로! 데이터 조회(Read)를 요청할 때 예) 영화 목록 조회
→ 데이터 전달 : URL 뒤에 물음표를 붙여 key=value로 전달
→ 예: google.com?q=북극곰
- GET 요청 API 코드
@app.route('/test', methods=['GET'])
def test_get():
title_receive = request.args.get('title_give')
print(title_receive)
return jsonify({'result': 'success', 'msg': '이 요청은 GET!'})
- GET 요청 확인 Ajax 코드
$.ajax({
type: "GET",
url: "/test?title_give=봄날은간다",
data: {},
success: function(response){
console.log(response)
}
})
- POST
→ 통상적으로! 데이터 생성(Create), 변경(Update), 삭제(Delete) 요청 할 때
예) 회원가입, 회원탈퇴, 비밀번호 수정
→ 데이터 전달 : 바로 보이지 않는 HTML body에 key:value 형태로 전달
- POST 요청 API 코드
@app.route('/test', methods=['POST'])
def test_post():
title_receive = request.form['title_give']
print(title_receive)
return jsonify({'result':'success', 'msg': '이 요청은 POST!'})
- POST 요청 확인 Ajax 코드
$.ajax({
type: "POST",
url: "/test",
data: { title_give:'봄날은간다' },
success: function(response){
console.log(response)
}
})
4주차 숙제 (팬명록 만들기)
- app.py 코드
from flask import Flask, render_template, request, jsonify
app = Flask(__name__)
import certifi
ca = certifi.where()
from pymongo import MongoClient
client = MongoClient('mongodb+srv://test:sparta@cluster0.p5ctwmd.mongodb.net/Cluster0?retryWrites=true&w=majority', tlsCAFile=ca)
db = client.dbsparta
@app.route('/')
def home():
return render_template('index.html')
@app.route("/homework", methods=["POST"])
def homework_post():
name_receive = request.form['name_give']
comment_receive = request.form['comment_give']
doc = {
'name':name_receive,
'comment':comment_receive
}
db.homework.insert_one(doc)
return jsonify({'msg': '댓글 달기 완료!'})
@app.route("/homework", methods=["GET"])
def homework_get():
comment_list = list(db.homework.find({}, {'_id': False}))
return jsonify({'homework': comment_list})
if __name__ == '__main__':
app.run('0.0.0.0', port=5000, debug=True)- index.html 코드
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"
integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM"
crossorigin="anonymous"></script>
<title>초미니홈피 - 팬명록</title>
<link href="https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@200;300;400;500;600;700;900&display=swap" rel="stylesheet">
<style>
* {
font-family: 'Noto Serif KR', serif;
}
.mypic {
width: 100%;
height: 300px;
background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://steemitimages.com/DQmYuG3jTPWxczDppuLe2dbaka9JVYYNeLMpu58bLd33nFR/image.png');
background-position: center 30%;
background-size: cover;
color: white;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
.mypost {
width: 95%;
max-width: 500px;
margin: 20px auto 20px auto;
box-shadow: 0px 0px 3px 0px black;
padding: 20px;
}
.mypost > button {
margin-top: 15px;
}
.mycards {
width: 95%;
max-width: 500px;
margin: auto;
}
.mycards > .card {
margin-top: 10px;
margin-bottom: 10px;
}
</style>
<script>
$(document).ready(function(){
set_temp()
show_comment()
});
function set_temp(){
$.ajax({
type: "GET",
url: "http://spartacodingclub.shop/sparta_api/weather/osan",
data: {},
success: function (response) {
$('#temp').text(response['temp'])
}
})
}
function save_comment(){
let name = $('#name').val()
let comment = $('#comment').val()
$.ajax({
type: 'POST',
url: '/homework',
data: {name_give:name, comment_give:comment},
success: function (response) {
alert(response['msg'])
window.location.reload()
}
})
}
function show_comment(){
$.ajax({
type: "GET",
url: "/homework",
data: {},
success: function (response) {
let rows = response['homework']
for (let i = 0; i < rows.length; i++){
let name = rows[i]['name']
let comment = rows[i]['comment']
let temp_html = `<div class="card">
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>${comment}</p>
<footer class="blockquote-footer">${name}</footer>
</blockquote>
</div>
</div>`
$('#comment-list').append(temp_html)
}
}
});
}
</script>
</head>
<body>
<div class="mypic">
<h1>Imagine Dragons 팬명록</h1>
<p>현재기온: <span id="temp"></span>℃</p>
</div>
<div class="mypost">
<div class="form-floating mb-3">
<input type="text" class="form-control" id="name" placeholder="url">
<label for="floatingInput">닉네임</label>
</div>
<div class="form-floating">
<textarea class="form-control" placeholder="Leave a comment here" id="comment"
style="height: 100px"></textarea>
<label for="floatingTextarea2">응원댓글</label>
</div>
<button onclick="save_comment()" type="button" class="btn btn-dark">응원 남기기</button>
</div>
<div class="mycards" id="comment-list">
</div>
</body>
</html>