Added Amazon Snapdeal Price Comparison Flask App

Readme.md

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+<h1>Amazon Snapdeal Price Comparison Flask App</h1>
+
+This is a Flask App for Comparing the price of a product on Amazon and Snapdeal. 
+
+First open localhost:8000/search and then enter the name of the product which you want to search. 
+
+The program then uses BeautifulSoup library and requests and does web scrapping on the Snapdeal and Amazon website.
+
+Then the program scrapes the websites of Snapdeal and Amazon and finds the top results from the website and stores them using Lists and Dictionary data structure of Python
+
+The program then redirects you to localhost:8000/result and displays the results of Snapdeal and Then of Amazon in a table.
+
+The program also uses routing to to redirect you to different web pages of the app like home page, search page and results page
+
+To use it, first write this command in the command line
+
+pip install -r requirements.txt
+
+or (for Mac)
+
+pip3 install -r requirements.txt
+
+and then to run the file write
+
+python app.py
+
+or (for Mac)
+
+python3 app.py
+
+
+Then open any web browser and go to localhost:8000/search and enter name of the product that you want to search.
+You will be redirected to localhost:8000/result and Snapdeal and Amazon search results will be shown to you for that product.

app.py

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+from flask import Flask, render_template, request, redirect
+from scrapper import scrapSnapdeal
+
+app = Flask(__name__)
+
+
+@app.route('/')
+def index():
+  return "Hello WELCOME to Nishit's Price Comparison App"
+
+@app.route('/search')
+def search():
+  return render_template('search.html')
+
+@app.route('/result', methods = ['POST'])
+def result():
+  query = request.form.get('query')
+
+  result = scrapSnapdeal(query)
+  return render_template('result.html', result = result)
+
+if __name__ == "__main__":
+  app.run(port = 8000, debug = False)

requirements.txt

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+Flask==1.1.1
+requests==2.22.0
+beautifulsoup4==4.8.2

scrapper.py

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+import requests
+from bs4 import BeautifulSoup
+
+def scrapSnapdeal(query):
+    url="https://www.snapdeal.com/search"
+    params={
+      "keyword":query,
+      "sort": "phtl"
+    }        
+    r=requests.get(url,params=params)
+    soup=BeautifulSoup(r.content)
+
+    products = soup.findAll('div', attrs = {"class": "product-tuple-listing"})
+    result=[]
+    e = {
+          "img": None,
+          "title": "Showing Results from Snapdeal",
+          "price": None
+        }
+    result.append(e)
+    for product in products:
+        img_tag = product.find('img')
+        if 'src' in img_tag.attrs:
+            img = img_tag.attrs['src']
+        else:
+            img = img_tag.attrs['data-src']
+        title = product.find('p', attrs = {"class": "product-title"}).text
+        price = product.find('span', attrs = {"class": "product-price"}).text
+
+
+        d = {
+          "img": img,
+          "title": title,
+          "price": price
+        }
+        result.append(d)
+
+    e = {
+          "img": None,
+          "title": "Above results were from Snapdeal, Now showing Results from Amazon",
+          "price": None
+        }
+    result.append(e)
+
+
+    url="https://www.amazon.in/s"
+    params={
+      "keyword":query,
+      "s": "price-desc-rank"
+    }  
+    headers = {
+        "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36"
+    }
+    r=requests.get(url,params=params, headers = headers)
+    soup=BeautifulSoup(r.content)
+    products = soup.findAll('div', attrs = {'class': 's-result-item'})
+    for product in products:
+        img_tag = product.find('img')
+        if 'src' in img_tag.attrs:
+            img = img_tag.attrs['src']
+        try:
+            title = product.find('span', attrs = {"class": "a-text-normal"}).text
+        except:
+            print("This was an advertisement")
+        try:
+            price = product.find('span', attrs = {"class": "a-price-whole"}).text
+        except:
+            print("This was an advertisement")
+        d = {
+          "img": img,
+          "title": title,
+          "price": "Rs. "+price
+        }
+        result.append(d)
+
+
+    return result
+

templates/result.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Document</title>
+</head>
+<body>
+  <h1>Search Result</h1>
+  <table>  
+    <tr>
+      <table>
+        <tr>
+          <th>Name</th>
+          <th>Photo</th>
+          <th>Price</th>
+        </tr>
+        {% for product in result %}
+          <tr>
+            <td>{{ product['title'] }}</td>
+            <td>
+              <img src="{{ product['img'] }}" alt="">
+            </td>
+            <td>{{ product['price'] }}</td>
+          </tr>
+        {% endfor %}
+      </table>
+    </tr>
+  </table>>
+</body>
+</html>

templates/search.html

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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>Document</title>
+  </head>
+  <body>
+  	<h1>Welcome to Nishit's Price Comparison Flask App</h1>
+    <h2>Search you product</h2>
+
+    <form action="/result" method="POST">
+      <label for="">Product Name</label>
+      <input type="text" name="query" placeholder="Enter product name">
+
+      <button type="Submit">Search</button>
+    </form>
+  </body>
+</html>