[14] project_04> 팬명록 : Get, Post 연습, API 만들기, 로컬 개발 환경

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[14] project_04> 팬명록 : Get, Post 연습, API 만들기, 로컬 개발 환경 본문

Programming/WEB

[14] project_04> 팬명록 : Get, Post 연습, API 만들기, 로컬 개발 환경

알 수 없는 사용자 2023. 7. 19. 14:56

1. app.py 만들기

2. venv 가상환경 설정하기

python -m venv venv

(venv)로 잘 뜨는지 확인하기!

3. templates > index.html 만들기

4. 패키지 설치하기

pip install flask pymongo dnspython

띄어쓰기로 구분
원하는 라이브러리 확인하려면 pip freeze로 확인할 수 있음!

pip freeze

5. 기본 코드

1) app.py

from flask import Flask, render_template, request, jsonify
app = Flask(__name__)

@app.route('/')
def home():
   return render_template('index.html')

@app.route("/guestbook", methods=["POST"])
def guestbook_post():
    sample_receive = request.form['sample_give']
    print(sample_receive)
    return jsonify({'msg': 'POST 연결 완료!'})

@app.route("/guestbook", methods=["GET"])
def guestbook_get():
    return jsonify({'msg': 'GET 연결 완료!'})

if __name__ == '__main__':
   app.run('0.0.0.0', port=5000, debug=True)

2) index.html

<!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://cdn.topstarnews.net/news/photo/201807/456143_108614_510.jpg");
        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() {
        fetch("http://spartacodingclub.shop/sparta_api/weather/seoul").then((res) => res.json()).then((data) => {
						console.log(data)
          });
      }
      function save_comment() {
        let formData = new FormData();
        formData.append("sample_give", "샘플데이터");

        fetch('/guestbook', {method: "POST",body: formData,}).then((res) => res.json()).then((data) => {
            //console.log(data)
            alert(data["msg"]);
          });
      }
      function show_comment() {
        fetch('/guestbook').then((res) => res.json()).then((data) => {
						alert(data["msg"])
				})
      }
    </script>
  </head>
  <body>
    <div class="mypic">
      <h1>십센치(10cm) 팬명록</h1>
      <p>현재기온: <span id="temp">36</span>도</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">
        댓글 남기기
      </button>
    </div>
    <div class="mycards" id="comment-list">
      <div class="card">
        <div class="card-body">
          <blockquote class="blockquote mb-0">
            <p>새로운 앨범 너무 멋져요!</p>
            <footer class="blockquote-footer">호빵맨</footer>
          </blockquote>
        </div>
      </div>
      <div class="card">
        <div class="card-body">
          <blockquote class="blockquote mb-0">
            <p>새로운 앨범 너무 멋져요!</p>
            <footer class="blockquote-footer">호빵맨</footer>
          </blockquote>
        </div>
      </div>
      <div class="card">
        <div class="card-body">
          <blockquote class="blockquote mb-0">
            <p>새로운 앨범 너무 멋져요!</p>
            <footer class="blockquote-footer">호빵맨</footer>
          </blockquote>
        </div>
      </div>
    </div>
  </body>
</html>

3) mongoDB 창 띄워두기

https://cloud.mongodb.com/

6. POST 요청

1) 데이터 명세

1) 요청 정보 : URL= /guestbook, 요청 방식 = POST

2) 클라이언트(fetch) ➡️ 서버(flask) : name, comment

3) 서버(flask) ➡️ 클라이언트(fetch) : 확인 메시지 전송 (포스팅 완료!)

2) 클라이언트와 서버 연결 확인하기

1) app.py 코드

@app.route("/guestbook", methods=["POST"])
def guestbook_post():
    sample_receive = request.form['sample_give']
    print(sample_receive)
    return jsonify({'msg': 'POST 연결 완료!'})

2) index.html 코드

function save_comment() {
  let formData = new FormData();
  formData.append("sample_give", "샘플데이터");

  fetch('/guestbook', {method: "POST",body: formData,}).then((response) => response.json()).then((data) => {
      alert(data['msg'])
    });
}

  <button onclick="save_bucket()" type="button" class="btn btn-outline-primary">기록하기</button>

3) 서버 만들기

1) pymongo import하기!

from pymongo import MongoClient
client = MongoClient('mongodb+srv://sparta:test@noelle.ricsrmv.mongodb.net/')
db = client.dbsparta

2) 받은 데이터를 db에 저장하고 완료됐음을 return 해줌

@app.route("/guestbook", methods=["POST"])
def guestbook_post():
    name_receive = request.form['name_give']
    comment_receive = request.form['comment_give']
    doc = {
        'name' : name_receive,
        'comment' : comment_receive
    }
    db.fan2.insert_one(doc)
    return jsonify({'msg': 'Posted'})

4) 클라이언트 만들기

function save_comment() {
        let name = $("#name").val()
        let comment = $("#comment").val()

        let formData = new FormData();
        formData.append("name_give", name);
        formData.append("comment_give", comment);

        fetch('/guestbook', {method: "POST",body: formData,}).then((res) => res.json()).then((data) => {
            alert(data["msg"]);
            window.location.reload()
          });
      }

id를 잘 붙이는 게 중요하다.
id를 지정할 태그명을 다시 잘 확인해서 실수하지 않도록 하자.
입력받은 데이터의 id 값으로 가져오는 것 잊지 말자~!
$("#id").val()
window.location.reload() : 새로고침

5) 완성 확인하기

1) 데이터 입력

2) alert 확인

3) DB 확인

7. GET 요청

1) 데이터 명세

1) 요청 정보 : URL= /guestbook, 요청 방식 = GET

2) 클라이언트(fetch) ➡️ 서버(flask) : 없음

3) 서버(flask) ➡️ 클라이언트(fetch) : 전체 데이터 전송

2) 클라이언트와 서버 연결 확인하기

1) app.py

@app.route("/guestbook", methods=["GET"])
def guestbook_get():
    return jsonify({'msg': 'GET 연결 완료!'})

2) index.html

<script>
      $(document).ready(function () {
        set_temp();
        show_comment();
      });
      function show_comment() {
        fetch('/guestbook').then((res) => res.json()).then((data) => {
						alert(data["msg"])
				})
      }
</script>

3) 서버 만들기

'result'에 전체 데이터를 담아서 내려주기!
db.db명.find({}, {_id}:False) : 전체 다 찾아서 받기

@app.route("/guestbook", methods=["GET"])
def guestbook_get():
    comments = list(db.fan2.find({},{'_id':False}))
    return jsonify({'result': comments})

4) 클라이언트 만들기

<script>
      $(document).ready(function () {
        set_temp();
        show_comment();
      });
      function show_comment() {
        $("#comment-list").empty()
        fetch('/guestbook').then((res) => res.json()).then((data) => {
            let comments = data['result']
            comments.forEach((a)=> {
                name = a['name']
                comment = a['comment']
                let temp_html = `<div class="card">
                                    <div class="card-body">
                                        <blockquote class="blockquote mb-0">
                                            <p>${comment}</p>
                                            <footer class="blockquote-footer">${name}</footer>
                                        </blockquote>
                                    </div>
                                </div>`
                $("#comment-list").append(temp_html)
            })
		})
      }
</script>

받아온 정보가 리스트이므로 리스트를 돌면서 하나씩 출력하도록 한다.

5) 완성 확인하기

새로고침해서 DB에 있는 정보들이 잘 들어오는지 확인하기

* 전체 완성 코드

1) app.py

from flask import Flask, render_template, request, jsonify
from pymongo import MongoClient

client = MongoClient('mongodb+srv://sparta:test@noelle.ricsrmv.mongodb.net/')
db = client.dbsparta

app = Flask(__name__)

@app.route('/')
def home():
   return render_template('index.html')

@app.route("/guestbook", methods=["POST"])
def guestbook_post():
    name_receive = request.form['name_give']
    comment_receive = request.form['comment_give']
    doc = {
        'name' : name_receive,
        'comment' : comment_receive
    }
    db.fan2.insert_one(doc)
    return jsonify({'msg': 'Posted!'})

@app.route("/guestbook", methods=["GET"])
def guestbook_get():
    comments = list(db.fan2.find({},{'_id':False}))
    return jsonify({'result': comments})

if __name__ == '__main__':
   app.run('0.0.0.0', port=5000, debug=True)

2) index.html

<!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>OASIS</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://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQNkBkG5ROdvSzdepoHOBM-BzEbb6Su7_JH9M0KeVPJ3NyF2Mge_Kvb8jGNO6UTPpTU8oQ&usqp=CAU");
        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 show_comment() {
        $("#comment-list").empty()
        fetch('/guestbook').then((res) => res.json()).then((data) => {
            let comments = data['result']
            comments.forEach((a)=> {
                name = a['name']
                comment = a['comment']
                let temp_html = `<div class="card">
                                    <div class="card-body">
                                        <blockquote class="blockquote mb-0">
                                            <p>${comment}</p>
                                            <footer class="blockquote-footer">${name}</footer>
                                        </blockquote>
                                    </div>
                                </div>`
                $("#comment-list").append(temp_html)
            })
		})
      }
      function set_temp() {
        fetch("http://spartacodingclub.shop/sparta_api/weather/seoul").then((res) => res.json()).then((data) => {
						console.log(data)
          });
      }
      function save_comment() {
        let name = $("#name").val()
        let comment = $("#comment").val()

        let formData = new FormData();
        formData.append("name_give", name);
        formData.append("comment_give", comment);

        fetch('/guestbook', {method: "POST",body: formData,}).then((res) => res.json()).then((data) => {
            alert(data["msg"]);
            window.location.reload()
          });
      }
      
    </script>
  </head>
  <body>
    <div class="mypic">
      <h1>to OASIS</h1>
      <p>current temp: <span id="temp">36</span>°C</p>
    </div>
    <div class="mypost">
      <div class="form-floating mb-3">
        <input type="text" class="form-control" id="name" placeholder="url" />
        <label for="floatingInput">name</label>
      </div>
      <div class="form-floating">
        <textarea
          class="form-control"
          placeholder="Leave a comment here"
          id="comment"
          style="height: 100px"
        ></textarea>
        <label for="floatingTextarea2">comment</label>
      </div>
      <button onclick="save_comment()" type="button" class="btn btn-dark">
        POST
      </button>
    </div>
    <div class="mycards" id="comment-list">
      <div class="card">
        <div class="card-body">
          <blockquote class="blockquote mb-0">
            <p>새로운 앨범 너무 멋져요!</p>
            <footer class="blockquote-footer">호빵맨</footer>
          </blockquote>
        </div>
      </div>
      <div class="card">
        <div class="card-body">
          <blockquote class="blockquote mb-0">
            <p>새로운 앨범 너무 멋져요!</p>
            <footer class="blockquote-footer">호빵맨</footer>
          </blockquote>
        </div>
      </div>
      <div class="card">
        <div class="card-body">
          <blockquote class="blockquote mb-0">
            <p>새로운 앨범 너무 멋져요!</p>
            <footer class="blockquote-footer">호빵맨</footer>
          </blockquote>
        </div>
      </div>
    </div>
  </body>
</html>

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