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"### ![](https://ga-dash.s3.amazonaws.com/production/assets/logo-9f88ae6c9c3871690e33280fcf557f33.png)\n",
"\n",
"# Unit 5 Lab: Finalizing the Movie App\n",
"\n",
"## Overview\n",
"Welcome to the Unit 5 lab!\n",
"\n",
"This is the lab we've been working toward. Here, you'll add functionality to read an API key from a local file, as well as structure the GET request to the remote server.\n",
"\n",
"You may not have internet access to this remote server - that's okay! We'll mock up the foundation based on our class lessons and you can check your work against the solution for correctness.\n",
"\n",
"Buckle up — here we go!"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"#### Read API Key From File\n",
"\n",
"Write a function, `load_api_key` that, when called:\n",
"\n",
"- Reads in an api key from a json file, `key.json`, in the notebook's current directory\n",
" - The key of the json element will be `api_key` and may look something like this:\n",
" ```javascript\n",
" {\n",
" 'api_key': '12345ABCDE'\n",
" }\n",
" ```\n",
"- Returns the api key as a string"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {},
"outputs": [],
"source": [
"def load_api_key():\n",
" import json\n",
" import sys\n",
" try:\n",
" with open('./key.json') as f:\n",
" d = json.load(f)\n",
" try:\n",
" return d['api_key']\n",
" except KeyError as e:\n",
" print(f'Expected api_key, found {e}')\n",
" sys.exit(1)\n",
" except FileNotFoundError as e:\n",
" print(e)\n",
" sys.exit(1)"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'12345ABCDE'"
]
},
"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"load_api_key()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"#### Media Class\n",
"\n",
"For this exercise, this class will remain untouched."
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [],
"source": [
"class Media(object):\n",
" \"\"\"Base class for Movie and Book objects\"\"\"\n",
"\n",
" def __init__(self, publisher, market):\n",
" self.publisher = publisher\n",
" self.market = market\n",
"\n",
" def get_media_info(self):\n",
" \"\"\"Prints media info to stdout\"\"\"\n",
" print(f'The Media object\\'s publisher is {self.publisher} \\\n",
" and the market is {market}.')\n",
" return None"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"#### Movie Class\n",
"\n",
"Augment the functionality of the `Movie` class as follows:\n",
"\n",
"- Make a GET Request\n",
" - Add a method, `call_api` which calls a ficticious endpoint URL, `https://www.rottentomatoes.com/api/v1`\n",
" - Include the [param payload](http://docs.python-requests.org/en/master/user/quickstart/#passing-parameters-in-urls) of 'apiKey' with the key you loaded in with `load_api_key()`\n",
" - Check the return response and handle errors accordingly\n",
" - In the event of a successful call, return the parsed json object (assume a mimetype of UTF-8 application/json)"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {},
"outputs": [],
"source": [
"import sys\n",
"import requests\n",
"\n",
"class Movie(Media):\n",
" \"\"\"\n",
" Movie objects contain all information about a particular movie,\n",
" including the title and rating.\n",
" \"\"\"\n",
"\n",
" def __init__(self, movie_data, publisher, market):\n",
" \"\"\"\n",
" Initialize Movie class, note that the init of the superclass,\n",
" Media, is called with the super().__init__() call\n",
" \"\"\"\n",
" # Call the constructor (init) method of Media\n",
" super().__init__(publisher, market)\n",
" # Store the raw data in this object so that we can use the\n",
" # data in the getter functions.\n",
" self.movie_data = movie_data\n",
"\n",
" def get_movie_title(self):\n",
" \"\"\"\n",
" get_movie_title is a getter function that returns the movie title.\n",
" \"\"\"\n",
" # Return the title from the movie data.\n",
" try:\n",
" return self.movie_data[\"title\"]\n",
" except KeyError as e:\n",
" print(f'Key {e.args[0]} was not found in dictionary.')\n",
" sys.exit(1)\n",
"\n",
" def get_movie_rating(self):\n",
" \"\"\"\n",
" get_movie_rating is a getter function that returns the rating.\n",
" \"\"\"\n",
" # Return the rating from the movie data.\n",
" try:\n",
" return self.movie_data[\"rating\"]\n",
" except KeyError as e:\n",
" print(f'Key {e.args[0]} was not found in dictionary.')\n",
" sys.exit(1)\n",
" \n",
" def call_api(self):\n",
" \"\"\"\n",
" Calls ficticious API with api key as parameter payload\n",
" \"\"\"\n",
" res = requests.get(\n",
" 'https://www.rottentomatoes.com/api/v1',\n",
" params={'apiKey': load_api_key()}\n",
" )\n",
" if res.status_code != requests.codes.ok:\n",
" print(f'Error with status code {res.status_code}')\n",
" sys.exit(1)\n",
" else:\n",
" return res.json()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"#### Functions\n",
"\n",
"Functions below will remain untouched for this exercise"
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {},
"outputs": [],
"source": [
"def return_single_movie_object(movie_title, movie_rating, publisher, market):\n",
" \"\"\"\n",
" Take in the movie title and rating, and return the movie object.\n",
" \"\"\"\n",
"\n",
" return Movie({'title': movie_title, 'rating': movie_rating}, publisher, market)\n",
"\n",
"def print_all_ratings(movie_list):\n",
" \"\"\"\n",
" Take in a list of movies, create a movie object for each, and print the rating.\n",
" \"\"\"\n",
"\n",
" for movie in movie_list:\n",
" movie_object = return_single_movie_object(movie, 4, \"Universal Studios\", \"USA\")\n",
" print(\"The movie\", movie_object.get_movie_title(), \"has a rating of\", movie_object.get_movie_rating())"
]
}
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