instacart_delivery_checker.py

import os
import requests

from bs4 import BeautifulSoup as bs


USERNAME = ""   # for instacart
PASSWORD = ""   # for instacart
EMAIL = ""      # where to send alert
STORE = "costco"
#STORE = "fresh-thyme-farmers-market"
#STORE = "schnucks"
#STORE = "sams-club"

#get and parse result for <meta name="csrf-token" content=
headers0 = {
    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
    "Accept-Encoding": "gzip, deflate, br",
    "Accept-Language": "en-US,en;q=0.5",
    "Connection": "keep-alive",
    "Host": "www.instacart.com",
    "User-Agent":"Mozilla/5.0 (iPhone; CPU iPhone OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148",
    }
url0 = "https://www.instacart.com/"


#get - this sets cookies
headers1 = {
    "Host": "www.instacart.com",
    "User-Agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148",
    "Accept": "application/json",
    "Accept-Language": "en-US,en;q=0.5",
    "Accept-Encoding": "gzip, deflate, br",
    "Referer": "https://www.instacart.com/",
    "content-type": "application/json",
    "X-Requested-With": "XMLHttpRequest",
    "x-client-identifier": "web",
    "X-CSRF-Token": "undefined",
    "Connection": "keep-alive",
    "TE": "Trailers",
    }
url1 = "https://www.instacart.com/v3/containers/next_gen/authenticate?&source=web&cache_key=undefined"


#post - to login
data2 = {
        #"address":None,
        "authenticity_token":"",
        "email":USERNAME,
        "grant_type":"password",
        "password":PASSWORD,
        #"scope":"",
        #"signup_v3_endpoints_web": None,
        }
headers2 = {
    "Host": "www.instacart.com",
    "User-Agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148",
    "Accept": "application/json",
    "Accept-Language": "en-US,en;q=0.5",
    "Accept-Encoding": "gzip, deflate, br",
    "Referer": "https://www.instacart.com/",
    "content-type": "application/json",
    "X-Requested-With": "XMLHttpRequest",
    "x-client-identifier": "web",
    "X-CSRF-Token": "undefined",
    "Origin": "https://www.instacart.com",
    "Connection": "keep-alive",
    }
url2 = "https://www.instacart.com/v3/dynamic_data/authenticate/login?source=web&cache_key=undefined"


s = requests.session()

s.headers.update(headers0)

r0 = s.get(url0)

soup0 = bs(r0.content, "lxml")

metas = soup0.find_all("meta")

for meta in metas:
    try:
        if meta.attrs["name"] == "csrf-token":
            data2["authenticity_token"] = meta.attrs["content"]
    except KeyError:
        pass

s.headers.update(headers1)
r1 = s.get(url1)

s.headers.update(headers2)
r2 = s.post(url2, json=data2)


###.... last step. get
headers_final = {
    "Host": "www.instacart.com",
    "User-Agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148",
    "Accept": "application/json",
    "Accept-Language": "en-US,en;q=0.5",
    "Accept-Encoding": "gzip, deflate, br",
    "Referer": "https://www.instacart.com/store/{0}/info?tab=delivery".format(STORE),
    "content-type": "application/json",
    "X-Requested-With": "XMLHttpRequest",
    "x-client-identifier": "web",
    "Connection": "keep-alive",
    "TE": "Trailers",
    }
url_final = "https://www.instacart.com/v3/containers/{0}/next_gen/retailer_information/content/delivery".format(STORE)

## then check containers -> modules -> 1st item in list ["id"]. if it contains "error_no_availability", then no delivery times

s.headers.update(headers_final)
rfinal = s.get(url_final)

if len(rfinal.json()["container"]["modules"]) == 1:
    try:
        print (rfinal.json()["container"]["modules"][0]["data"]["title"])
    except KeyError:
        print ("Delivery times might be available")
elif len(rfinal.json()["container"]["modules"]) == 2:
    os.system("mutt -s 'delivery available at {0}!' {1} < /dev/null".format(STORE, EMAIL))
    av_days = rfinal.json()["container"]["modules"][1]["data"]["service_options"]["service_options"]["days"]
    for ad in av_days:
        options = ad["options"]
        for option in options:
            print (option["delivery_full_window"])
else:
    print ("didn't write code for this eventuality, check rfinal")