0x05. AirBnB clone - RESTful API Python Back-end API Webserver Flask By: Guillaume, CTO at Holberton School Weight: 2 Project to be done in teams of 2 people (your team: Charles Gudza, Tapiwa Sande) Project will start Sep 28, 2023 6:00 AM, must end by Oct 3, 2023 6:00 AM Checker was released at Sep 29, 2023 12:00 PM An auto review will be launched at the deadline Concepts For this project, we expect you to look at these concepts:
REST API AirBnB clone Resources Read or watch:
REST API concept page Learn REST: A RESTful Tutorial Designing a RESTful API with Python and Flask HTTP access control (CORS) Flask cheatsheet What are Flask Blueprints, exactly? Flask Modular Applications with Blueprints Flask tests Flask-CORS Learning Objectives At the end of this project, you are expected to be able to explain to anyone, without the help of Google:
General What REST means What API means What CORS means What is an API What is a REST API What are other type of APIs Which is the HTTP method to retrieve resource(s) Which is the HTTP method to create a resource Which is the HTTP method to update resource Which is the HTTP method to delete resource How to request REST API Copyright - Plagiarism You are tasked to come up with solutions for the tasks below yourself to meet with the above learning objectives. You will not be able to meet the objectives of this or any following project by copying and pasting someone else’s work. You are not allowed to publish any content of this project. Any form of plagiarism is strictly forbidden and will result in removal from the program. Requirements Python Scripts Allowed editors: vi, vim, emacs All your files will be interpreted/compiled on Ubuntu 20.04 LTS using python3 (version 3.4.3) All your files should end with a new line The first line of all your files should be exactly #!/usr/bin/python3 A README.md file, at the root of the folder of the project, is mandatory Your code should use the PEP 8 style (version 1.7) All your files must be executable The length of your files will be tested using wc All your modules should have documentation (python3 -c 'print(import("my_module").doc)') All your classes should have documentation (python3 -c 'print(import("my_module").MyClass.doc)') All your functions (inside and outside a class) should have documentation (python3 -c 'print(import("my_module").my_function.doc)' and python3 -c 'print(import("my_module").MyClass.my_function.doc)') A documentation is not a simple word, it’s a real sentence explaining what’s the purpose of the module, class or method (the length of it will be verified) Python Unit Tests Allowed editors: vi, vim, emacs All your files should end with a new line All your test files should be inside a folder tests You have to use the unittest module All your test files should be python files (extension: .py) All your test files and folders should start by test_ Your file organization in the tests folder should be the same as your project: ex: for models/base_model.py, unit tests must be in: tests/test_models/test_base_model.py All your tests should be executed by using this command: python3 -m unittest discover tests You can also test file by file by using this command: python3 -m unittest tests/test_models/test_base_model.py We strongly encourage you to work together on test cases, so that you don’t miss any edge cases GitHub There should be one project repository per group. If you clone/fork/whatever a project repository with the same name before the second deadline, you risk a 0% score.
More Info
Install Flask $ pip3 install Flask Video library(2 total)
Python: Flask RestAPI AirBnB API Tasks 0. Restart from scratch! mandatory No no no! We are already too far in the project to restart everything.
But once again, let’s work on a new codebase.
For this project you will fork this codebase:
Update the repository name to AirBnB_clone_v3 Update the README.md: Add yourself as an author of the project Add new information about your new contribution Make it better! If you’re the owner of this codebase, create a new repository called AirBnB_clone_v3 and copy over all files from AirBnB_clone_v2 Repo:
GitHub repository: AirBnB_clone_v3
- Never fail! mandatory
Since the beginning we’ve been using the unittest module, but do you know why unittests are so important? Because when you add a new feature, you refactor a piece of code, etc… you want to be sure you didn’t break anything.
At Holberton, we have a lot of tests, and they all pass! Just for the Intranet itself, there are:
5,213 assertions (as of 08/20/2018) 13,061 assertions (as of 01/25/2021) The following requirements must be met for your project:
all current tests must pass (don’t delete them…)
add new tests as much as you can (tests are mandatory for some tasks)
guillaume@ubuntu:/AirBnB_v3$ python3 -m unittest discover tests 2>&1 | tail -1
OK
guillaume@ubuntu:/AirBnB_v3$ HBNB_ENV=test HBNB_MYSQL_USER=hbnb_test HBNB_MYSQL_PWD=hbnb_test_pwd HBNB_MYSQL_HOST=localhost HBNB_MYSQL_DB=hbnb_test_db HBNB_TYPE_STORAGE=db python3 -m unittest discover tests 2>&1 /dev/null | tail -n 1
OK
guillaume@ubuntu:~/AirBnB_v3$
Repo:
GitHub repository: AirBnB_clone_v3
- Improve storage mandatory Update DBStorage and FileStorage, adding two new methods. All changes should be done in the branch storage_get_count:
A method to retrieve one object:
Prototype: def get(self, cls, id): cls: class id: string representing the object ID Returns the object based on the class and its ID, or None if not found A method to count the number of objects in storage:
Prototype: def count(self, cls=None): cls: class (optional) Returns the number of objects in storage matching the given class. If no class is passed, returns the count of all objects in storage. Don’t forget to add new tests for these 2 methods on each storage engine.
guillaume@ubuntu:~/AirBnB_v3$ cat test_get_count.py #!/usr/bin/python3 """ Test .get() and .count() methods """ from models import storage from models.state import State
print("All objects: {}".format(storage.count())) print("State objects: {}".format(storage.count(State)))
first_state_id = list(storage.all(State).values())[0].id print("First state: {}".format(storage.get(State, first_state_id)))
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:/AirBnB_v3$ HBNB_MYSQL_USER=hbnb_dev HBNB_MYSQL_PWD=hbnb_dev_pwd HBNB_MYSQL_HOST=localhost HBNB_MYSQL_DB=hbnb_dev_db HBNB_TYPE_STORAGE=db ./test_get_count.py
All objects: 1013
State objects: 27
First state: [State] (f8d21261-3e79-4f5c-829a-99d7452cd73c) {'name': 'Colorado', 'updated_at': datetime.datetime(2017, 3, 25, 2, 17, 6), 'created_at': datetime.datetime(2017, 3, 25, 2, 17, 6), '_sa_instance_state': <sqlalchemy.orm.state.InstanceState object at 0x7fc0103a8e80>, 'id': 'f8d21261-3e79-4f5c-829a-99d7452cd73c'}
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:/AirBnB_v3$ ./test_get_count.py
All objects: 19
State objects: 5
First state: [State] (af14c85b-172f-4474-8a30-d4ec21f9795e) {'updated_at': datetime.datetime(2017, 4, 13, 17, 10, 22, 378824), 'name': 'Arizona', 'id': 'af14c85b-172f-4474-8a30-d4ec21f9795e', 'created_at': datetime.datetime(2017, 4, 13, 17, 10, 22, 378763)}
guillaume@ubuntu:~/AirBnB_v3$
For this task, you must make a pull request on GitHub.com, and ask at least one of your peer to review and merge it.
Repo:
GitHub repository: AirBnB_clone_v3 File: models/engine/db_storage.py, models/engine/file_storage.py, tests/test_models/test_engine/test_db_storage.py, tests/test_models/test_engine/test_file_storage.py
- Status of your API mandatory It’s time to start your API!
Your first endpoint (route) will be to return the status of your API:
guillaume@ubuntu:~/AirBnB_v3$ HBNB_MYSQL_USER=hbnb_dev HBNB_MYSQL_PWD=hbnb_dev_pwd HBNB_MYSQL_HOST=localhost HBNB_MYSQL_DB=hbnb_dev_db HBNB_TYPE_STORAGE=db HBNB_API_HOST=0.0.0.0 HBNB_API_PORT=5000 python3 -m api.v1.app
- Running on http://0.0.0.0:5000/ (Press CTRL+C to quit) ... In another terminal:
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/status
{
"status": "OK"
}
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:/AirBnB_v3$ curl -X GET -s http://0.0.0.0:5000/api/v1/status -vvv 2>&1 | grep Content-Type
< Content-Type: application/json
guillaume@ubuntu:/AirBnB_v3$
Magic right? (No need to have a pretty rendered output, it’s a JSON, only the structure is important)
Ok, let starts:
Create a folder api at the root of the project with an empty file init.py Create a folder v1 inside api: create an empty file init.py create a file app.py: create a variable app, instance of Flask import storage from models import app_views from api.v1.views register the blueprint app_views to your Flask instance app declare a method to handle @app.teardown_appcontext that calls storage.close() inside if name == "main":, run your Flask server (variable app) with: host = environment variable HBNB_API_HOST or 0.0.0.0 if not defined port = environment variable HBNB_API_PORT or 5000 if not defined threaded=True Create a folder views inside v1: create a file init.py: import Blueprint from flask doc create a variable app_views which is an instance of Blueprint (url prefix must be /api/v1) wildcard import of everything in the package api.v1.views.index => PEP8 will complain about it, don’t worry, it’s normal and this file (v1/views/init.py) won’t be check. create a file index.py import app_views from api.v1.views create a route /status on the object app_views that returns a JSON: "status": "OK" (see example) Repo:
GitHub repository: AirBnB_clone_v3 File: api/init.py, api/v1/init.py, api/v1/views/init.py, api/v1/views/index.py, api/v1/app.py
- Some stats? mandatory Create an endpoint that retrieves the number of each objects by type:
In api/v1/views/index.py
Route: /api/v1/stats
You must use the newly added count() method from storage
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/stats
{
"amenities": 47,
"cities": 36,
"places": 154,
"reviews": 718,
"states": 27,
"users": 31
}
guillaume@ubuntu:/AirBnB_v3$
(No need to have a pretty rendered output, it’s a JSON, only the structure is important)
Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/index.py
- Not found mandatory Designers are really creative when they have to design a “404 page”, a “Not found”… 34 brilliantly designed 404 error pages
Today it’s different, because you won’t use HTML and CSS, but JSON!
In api/v1/app.py, create a handler for 404 errors that returns a JSON-formatted 404 status code response. The content should be: "error": "Not found"
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/nop
{
"error": "Not found"
}
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/nop -vvv
- Trying 0.0.0.0...
- TCP_NODELAY set
- Connected to 0.0.0.0 (127.0.0.1) port 5000 (#0)
GET /api/v1/nop HTTP/1.1 Host: 0.0.0.0:5000 User-Agent: curl/7.51.0 Accept: /
- HTTP 1.0, assume close after body < HTTP/1.0 404 NOT FOUND < Content-Type: application/json < Content-Length: 27 < Server: Werkzeug/0.12.1 Python/3.4.3 < Date: Fri, 14 Apr 2017 23:43:24 GMT < { "error": "Not found" } guillaume@ubuntu:~/AirBnB_v3$ Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/app.py
- State mandatory Create a new view for State objects that handles all default RESTFul API actions:
In the file api/v1/views/states.py You must use to_dict() to retrieve an object into a valid JSON Update api/v1/views/init.py to import this new file Retrieves the list of all State objects: GET /api/v1/states
Retrieves a State object: GET /api/v1/states/<state_id>
If the state_id is not linked to any State object, raise a 404 error Deletes a State object:: DELETE /api/v1/states/<state_id>
If the state_id is not linked to any State object, raise a 404 error Returns an empty dictionary with the status code 200 Creates a State: POST /api/v1/states
You must use request.get_json from Flask to transform the HTTP body request to a dictionary If the HTTP body request is not valid JSON, raise a 400 error with the message Not a JSON If the dictionary doesn’t contain the key name, raise a 400 error with the message Missing name Returns the new State with the status code 201 Updates a State object: PUT /api/v1/states/<state_id>
If the state_id is not linked to any State object, raise a 404 error
You must use request.get_json from Flask to transform the HTTP body request to a dictionary
If the HTTP body request is not valid JSON, raise a 400 error with the message Not a JSON
Update the State object with all key-value pairs of the dictionary.
Ignore keys: id, created_at and updated_at
Returns the State object with the status code 200
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/states/
[
{
"class": "State",
"created_at": "2017-04-14T00:00:02",
"id": "8f165686-c98d-46d9-87d9-d6059ade2d99",
"name": "Louisiana",
"updated_at": "2017-04-14T00:00:02"
},
{
"class": "State",
"created_at": "2017-04-14T16:21:42",
"id": "1a9c29c7-e39c-4840-b5f9-74310b34f269",
"name": "Arizona",
"updated_at": "2017-04-14T16:21:42"
},
...
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/states/8f165686-c98d-46d9-87d9-d6059ade2d99
{
"class": "State",
"created_at": "2017-04-14T00:00:02",
"id": "8f165686-c98d-46d9-87d9-d6059ade2d99",
"name": "Louisiana",
"updated_at": "2017-04-14T00:00:02"
}
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:~/AirBnB_v3$ curl -X POST http://0.0.0.0:5000/api/v1/states/ -H "Content-Type: application/json" -d '{"name": "California"}' -vvv
- Trying 0.0.0.0...
- TCP_NODELAY set
- Connected to 0.0.0.0 (127.0.0.1) port 5000 (#0)
POST /api/v1/states/ HTTP/1.1 Host: 0.0.0.0:5000 User-Agent: curl/7.51.0 Accept: / Content-Type: application/json Content-Length: 22
- upload completely sent off: 22 out of 22 bytes
- HTTP 1.0, assume close after body < HTTP/1.0 201 CREATED < Content-Type: application/json < Content-Length: 195 < Server: Werkzeug/0.12.1 Python/3.4.3 < Date: Sat, 15 Apr 2017 01:30:27 GMT < { "class": "State", "created_at": "2017-04-15T01:30:27.557877", "id": "feadaa73-9e4b-4514-905b-8253f36b46f6", "name": "California", "updated_at": "2017-04-15T01:30:27.558081" }
- Curl_http_done: called premature == 0
- Closing connection 0
guillaume@ubuntu:
/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X PUT http://0.0.0.0:5000/api/v1/states/feadaa73-9e4b-4514-905b-8253f36b46f6 -H "Content-Type: application/json" -d '{"name": "California is so cool"}' { "class": "State", "created_at": "2017-04-15T01:30:28", "id": "feadaa73-9e4b-4514-905b-8253f36b46f6", "name": "California is so cool", "updated_at": "2017-04-15T01:51:08.044996" } guillaume@ubuntu:/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/states/feadaa73-9e4b-4514-905b-8253f36b46f6 { "class": "State", "created_at": "2017-04-15T01:30:28", "id": "feadaa73-9e4b-4514-905b-8253f36b46f6", "name": "California is so cool", "updated_at": "2017-04-15T01:51:08" } guillaume@ubuntu:/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X DELETE http://0.0.0.0:5000/api/v1/states/feadaa73-9e4b-4514-905b-8253f36b46f6 {} guillaume@ubuntu:/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/states/feadaa73-9e4b-4514-905b-8253f36b46f6 { "error": "Not found" } guillaume@ubuntu:~/AirBnB_v3$ Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/states.py, api/v1/views/init.py
- City mandatory Same as State, create a new view for City objects that handles all default RESTFul API actions:
In the file api/v1/views/cities.py You must use to_dict() to serialize an object into valid JSON Update api/v1/views/init.py to import this new file Retrieves the list of all City objects of a State: GET /api/v1/states/<state_id>/cities
If the state_id is not linked to any State object, raise a 404 error Retrieves a City object. : GET /api/v1/cities/<city_id>
If the city_id is not linked to any City object, raise a 404 error Deletes a City object: DELETE /api/v1/cities/<city_id>
If the city_id is not linked to any City object, raise a 404 error Returns an empty dictionary with the status code 200 Creates a City: POST /api/v1/states/<state_id>/cities
You must use request.get_json from Flask to transform the HTTP body request to a dictionary If the state_id is not linked to any State object, raise a 404 error If the HTTP body request is not a valid JSON, raise a 400 error with the message Not a JSON If the dictionary doesn’t contain the key name, raise a 400 error with the message Missing name Returns the new City with the status code 201 Updates a City object: PUT /api/v1/cities/<city_id>
If the city_id is not linked to any City object, raise a 404 error
You must use request.get_json from Flask to transform the HTTP body request to a dictionary
If the HTTP request body is not valid JSON, raise a 400 error with the message Not a JSON
Update the City object with all key-value pairs of the dictionary
Ignore keys: id, state_id, created_at and updated_at
Returns the City object with the status code 200
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/states/not_an_id/cities/
{
"error": "Not found"
}
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/states/2b9a4627-8a9e-4f32-a752-9a84fa7f4efd/cities
[
{
"class": "City",
"created_at": "2017-03-25T02:17:06",
"id": "1da255c0-f023-4779-8134-2b1b40f87683",
"name": "New Orleans",
"state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd",
"updated_at": "2017-03-25T02:17:06"
},
{
"class": "City",
"created_at": "2017-03-25T02:17:06",
"id": "45903748-fa39-4cd0-8a0b-c62bfe471702",
"name": "Lafayette",
"state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd",
"updated_at": "2017-03-25T02:17:06"
},
{
"class": "City",
"created_at": "2017-03-25T02:17:06",
"id": "e4e40a6e-59ff-4b4f-ab72-d6d100201588",
"name": "Baton rouge",
"state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd",
"updated_at": "2017-03-25T02:17:06"
}
]
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/cities/1da255c0-f023-4779-8134-2b1b40f87683
{
"class": "City",
"created_at": "2017-03-25T02:17:06",
"id": "1da255c0-f023-4779-8134-2b1b40f87683",
"name": "New Orleans",
"state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd",
"updated_at": "2017-03-25T02:17:06"
}
guillaume@ubuntu:/AirBnB_v3$
guillaume@ubuntu:~/AirBnB_v3$ curl -X POST http://0.0.0.0:5000/api/v1/states/2b9a4627-8a9e-4f32-a752-9a84fa7f4efd/cities -H "Content-Type: application/json" -d '{"name": "Alexandria"}' -vvv
- Trying 0.0.0.0...
- TCP_NODELAY set
- Connected to 0.0.0.0 (127.0.0.1) port 5000 (#0)
POST /api/v1/states/2b9a4627-8a9e-4f32-a752-9a84fa7f4efd/cities/ HTTP/1.1 Host: 0.0.0.0:5000 User-Agent: curl/7.51.0 Accept: / Content-Type: application/json Content-Length: 22
- upload completely sent off: 22 out of 22 bytes
- HTTP 1.0, assume close after body < HTTP/1.0 201 CREATED < Content-Type: application/json < Content-Length: 249 < Server: Werkzeug/0.12.1 Python/3.4.3 < Date: Sun, 16 Apr 2017 03:14:05 GMT < { "class": "City", "created_at": "2017-04-16T03:14:05.655490", "id": "b75ae104-a8a3-475e-bf74-ab0a066ca2af", "name": "Alexandria", "state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd", "updated_at": "2017-04-16T03:14:05.655748" }
- Curl_http_done: called premature == 0
- Closing connection 0
guillaume@ubuntu:
/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X PUT http://0.0.0.0:5000/api/v1/cities/b75ae104-a8a3-475e-bf74-ab0a066ca2af -H "Content-Type: application/json" -d '{"name": "Bossier City"}' { "class": "City", "created_at": "2017-04-16T03:14:06", "id": "b75ae104-a8a3-475e-bf74-ab0a066ca2af", "name": "Bossier City", "state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd", "updated_at": "2017-04-16T03:15:12.895894" } guillaume@ubuntu:/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/cities/b75ae104-a8a3-475e-bf74-ab0a066ca2af { "class": "City", "created_at": "2017-04-16T03:14:06", "id": "b75ae104-a8a3-475e-bf74-ab0a066ca2af", "name": "Bossier City", "state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd", "updated_at": "2017-04-16T03:15:13" } guillaume@ubuntu:/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X DELETE http://0.0.0.0:5000/api/v1/cities/b75ae104-a8a3-475e-bf74-ab0a066ca2af {} guillaume@ubuntu:/AirBnB_v3$ guillaume@ubuntu:/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/cities/b75ae104-a8a3-475e-bf74-ab0a066ca2af { "error": "Not found" } guillaume@ubuntu:~/AirBnB_v3$ Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/cities.py, api/v1/views/init.py
- Amenity mandatory Create a new view for Amenity objects that handles all default RESTFul API actions:
In the file api/v1/views/amenities.py You must use to_dict() to serialize an object into valid JSON Update api/v1/views/init.py to import this new file Retrieves the list of all Amenity objects: GET /api/v1/amenities
Retrieves a Amenity object: GET /api/v1/amenities/<amenity_id>
If the amenity_id is not linked to any Amenity object, raise a 404 error Deletes a Amenity object:: DELETE /api/v1/amenities/<amenity_id>
If the amenity_id is not linked to any Amenity object, raise a 404 error Returns an empty dictionary with the status code 200 Creates a Amenity: POST /api/v1/amenities
You must use request.get_json from Flask to transform the HTTP request to a dictionary If the HTTP request body is not valid JSON, raise a 400 error with the message Not a JSON If the dictionary doesn’t contain the key name, raise a 400 error with the message Missing name Returns the new Amenity with the status code 201 Updates a Amenity object: PUT /api/v1/amenities/<amenity_id>
If the amenity_id is not linked to any Amenity object, raise a 404 error You must use request.get_json from Flask to transform the HTTP request to a dictionary If the HTTP request body is not valid JSON, raise a 400 error with the message Not a JSON Update the Amenity object with all key-value pairs of the dictionary Ignore keys: id, created_at and updated_at Returns the Amenity object with the status code 200 Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/amenities.py, api/v1/views/init.py
- User mandatory Create a new view for User object that handles all default RESTFul API actions:
In the file api/v1/views/users.py You must use to_dict() to retrieve an object into a valid JSON Update api/v1/views/init.py to import this new file Retrieves the list of all User objects: GET /api/v1/users
Retrieves a User object: GET /api/v1/users/<user_id>
If the user_id is not linked to any User object, raise a 404 error Deletes a User object:: DELETE /api/v1/users/<user_id>
If the user_id is not linked to any User object, raise a 404 error Returns an empty dictionary with the status code 200 Creates a User: POST /api/v1/users
You must use request.get_json from Flask to transform the HTTP body request to a dictionary If the HTTP body request is not valid JSON, raise a 400 error with the message Not a JSON If the dictionary doesn’t contain the key email, raise a 400 error with the message Missing email If the dictionary doesn’t contain the key password, raise a 400 error with the message Missing password Returns the new User with the status code 201 Updates a User object: PUT /api/v1/users/<user_id>
If the user_id is not linked to any User object, raise a 404 error You must use request.get_json from Flask to transform the HTTP body request to a dictionary If the HTTP body request is not valid JSON, raise a 400 error with the message Not a JSON Update the User object with all key-value pairs of the dictionary Ignore keys: id, email, created_at and updated_at Returns the User object with the status code 200 Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/users.py, api/v1/views/init.py
- Place mandatory Create a new view for Place objects that handles all default RESTFul API actions:
In the file api/v1/views/places.py You must use to_dict() to retrieve an object into a valid JSON Update api/v1/views/init.py to import this new file Retrieves the list of all Place objects of a City: GET /api/v1/cities/<city_id>/places
If the city_id is not linked to any City object, raise a 404 error Retrieves a Place object. : GET /api/v1/places/<place_id>
If the place_id is not linked to any Place object, raise a 404 error Deletes a Place object: DELETE /api/v1/places/<place_id>
If the place_id is not linked to any Place object, raise a 404 error Returns an empty dictionary with the status code 200 Creates a Place: POST /api/v1/cities/<city_id>/places
You must use request.get_json from Flask to transform the HTTP request to a dictionary If the city_id is not linked to any City object, raise a 404 error If the HTTP request body is not valid JSON, raise a 400 error with the message Not a JSON If the dictionary doesn’t contain the key user_id, raise a 400 error with the message Missing user_id If the user_id is not linked to any User object, raise a 404 error If the dictionary doesn’t contain the key name, raise a 400 error with the message Missing name Returns the new Place with the status code 201 Updates a Place object: PUT /api/v1/places/<place_id>
If the place_id is not linked to any Place object, raise a 404 error You must use request.get_json from Flask to transform the HTTP request to a dictionary If the HTTP request body is not valid JSON, raise a 400 error with the message Not a JSON Update the Place object with all key-value pairs of the dictionary Ignore keys: id, user_id, city_id, created_at and updated_at Returns the Place object with the status code 200 Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/places.py, api/v1/views/init.py
- Reviews mandatory Create a new view for Review object that handles all default RESTFul API actions:
In the file api/v1/views/places_reviews.py You must use to_dict() to retrieve an object into valid JSON Update api/v1/views/init.py to import this new file Retrieves the list of all Review objects of a Place: GET /api/v1/places/<place_id>/reviews
If the place_id is not linked to any Place object, raise a 404 error Retrieves a Review object. : GET /api/v1/reviews/<review_id>
If the review_id is not linked to any Review object, raise a 404 error Deletes a Review object: DELETE /api/v1/reviews/<review_id>
If the review_id is not linked to any Review object, raise a 404 error Returns an empty dictionary with the status code 200 Creates a Review: POST /api/v1/places/<place_id>/reviews
You must use request.get_json from Flask to transform the HTTP request to a dictionary If the place_id is not linked to any Place object, raise a 404 error If the HTTP body request is not valid JSON, raise a 400 error with the message Not a JSON If the dictionary doesn’t contain the key user_id, raise a 400 error with the message Missing user_id If the user_id is not linked to any User object, raise a 404 error If the dictionary doesn’t contain the key text, raise a 400 error with the message Missing text Returns the new Review with the status code 201 Updates a Review object: PUT /api/v1/reviews/<review_id>
If the review_id is not linked to any Review object, raise a 404 error You must use request.get_json from Flask to transform the HTTP request to a dictionary If the HTTP request body is not valid JSON, raise a 400 error with the message Not a JSON Update the Review object with all key-value pairs of the dictionary Ignore keys: id, user_id, place_id, created_at and updated_at Returns the Review object with the status code 200 Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/places_reviews.py, api/v1/views/init.py
- HTTP access control (CORS) mandatory A resource makes a cross-origin HTTP request when it requests a resource from a different domain, or port, than the one the first resource itself serves.
Read the full definition here
Why do we need this?
Because you will soon start allowing a web client to make requests your API. If your API doesn’t have a correct CORS setup, your web client won’t be able to access your data.
With Flask, it’s really easy, you will use the class CORS of the module flask_cors.
How to install it: $ pip3 install flask_cors
Update api/v1/app.py to create a CORS instance allowing: /* for 0.0.0.0
You will update it later when you will deploy your API to production.
Now you can see this HTTP Response Header: < Access-Control-Allow-Origin: 0.0.0.0
guillaume@ubuntu:~/AirBnB_v3$ curl -X GET http://0.0.0.0:5000/api/v1/cities/1da255c0-f023-4779-8134-2b1b40f87683 -vvv
- Trying 0.0.0.0...
- TCP_NODELAY set
- Connected to 0.0.0.0 (127.0.0.1) port 5000 (#0)
GET /api/v1/states/2b9a4627-8a9e-4f32-a752-9a84fa7f4efd/cities/1da255c0-f023-4779-8134-2b1b40f87683 HTTP/1.1 Host: 0.0.0.0:5000 User-Agent: curl/7.51.0 Accept: /
- HTTP 1.0, assume close after body < HTTP/1.0 200 OK < Content-Type: application/json < Access-Control-Allow-Origin: 0.0.0.0 < Content-Length: 236 < Server: Werkzeug/0.12.1 Python/3.4.3 < Date: Sun, 16 Apr 2017 04:20:13 GMT < { "class": "City", "created_at": "2017-03-25T02:17:06", "id": "1da255c0-f023-4779-8134-2b1b40f87683", "name": "New Orleans", "state_id": "2b9a4627-8a9e-4f32-a752-9a84fa7f4efd", "updated_at": "2017-03-25T02:17:06" }
- Curl_http_done: called premature == 0
- Closing connection 0 guillaume@ubuntu:~/AirBnB_v3$ Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/app.py
- Place - Amenity #advanced Create a new view for the link between Place objects and Amenity objects that handles all default RESTFul API actions:
In the file api/v1/views/places_amenities.py You must use to_dict() to retrieve an object into a valid JSON Update api/v1/views/init.py to import this new file Depending of the storage: DBStorage: list, create and delete Amenity objects from amenities relationship FileStorage: list, add and remove Amenity ID in the list amenity_ids of a Place object Retrieves the list of all Amenity objects of a Place: GET /api/v1/places/<place_id>/amenities
If the place_id is not linked to any Place object, raise a 404 error Deletes a Amenity object to a Place: DELETE /api/v1/places/<place_id>/amenities/<amenity_id>
If the place_id is not linked to any Place object, raise a 404 error If the amenity_id is not linked to any Amenity object, raise a 404 error If the Amenity is not linked to the Place before the request, raise a 404 error Returns an empty dictionary with the status code 200 Link a Amenity object to a Place: POST /api/v1/places/<place_id>/amenities/<amenity_id>
No HTTP body needed If the place_id is not linked to any Place object, raise a 404 error If the amenity_id is not linked to any Amenity object, raise a 404 error If the Amenity is already linked to the Place, return the Amenity with the status code 200 Returns the Amenity with the status code 201 Repo:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/places_amenities.py, api/v1/views/init.py
- Security improvements! #advanced Currently, the User object is designed to store the user password in cleartext.
It’s super bad!
To avoid that, improve the User object:
Update the method to_dict() of BaseModel to remove the password key except when it’s used by FileStorage to save data to disk. Tips: default parameters Each time a new User object is created or password updated, the password is hashed to a MD5 value In the database for DBStorage, the password stored is now hashed to a MD5 value In the file for FileStorage, the password stored is now hashed to a MD5 value Repo:
GitHub repository: AirBnB_clone_v3 File: models/base_model.py, models/user.py
- Search #advanced For the moment, the only way to list Place objects is via GET /api/v1/cities/<city_id>/places.
Good, but not enough…
Update api/v1/views/places.py to add a new endpoint: POST /api/v1/places_search that retrieves all Place objects depending of the JSON in the body of the request.
The JSON can contain 3 optional keys:
states: list of State ids cities: list of City ids amenities: list of Amenity ids Search rules:
If the HTTP request body is not valid JSON, raise a 400 error with the message Not a JSON
If the JSON body is empty or each list of all keys are empty: retrieve all Place objects
If states list is not empty, results should include all Place objects for each State id listed
If cities list is not empty, results should include all Place objects for each City id listed
Keys states and cities are inclusive. Search results should include all Place objects in storage related to each City in every State listed in states, plus every City listed individually in cities, unless that City was already included by states.
Context:
State A has 2 cities A1 and A2
State B has 3 cities B1, B2 and B3
A1 has 1 place
A2 has 2 places
B1 has 3 places
B2 has 4 places
B3 has 5 places
Search: states = State A and cities = B2
Result: all 4 places from the city B2 and the place from the city A1 and the 2 places of the city A2 (because they are part of State A) => 7 places returned
If amenities list is not empty, limit search results to only Place objects having all Amenity ids listed
The key amenities is exclusive, acting as a filter on the results generated by states and cities, or on all Place if states and cities are both empty or missing.
Results will only include Place objects having all listed amenities. If a Place doesn’t have even one of these amenities, it won’t be retrieved.
guillaume@ubuntu:/AirBnB_v3$ curl -X POST http://0.0.0.0:5000/api/v1/places_search -H "Content-Type: application/json" -d '{"states": ["2b9a4627-8a9e-4f32-a752-9a84fa7f4efd", "459e021a-e794-447d-9dd2-e03b7963f7d2"], "cities": ["5976f0e7-5c5f-4949-aae0-90d68fd239c0"]}'
[
{
"class": "Place",
"created_at": "2017-03-25T02:17:06",
"id": "dacec983-cec4-4f68-bd7f-af9068a305f5",
"name": "The Lynn House",
"city_id": "5976f0e7-5c5f-4949-aae0-90d68fd239c0",
"user_id": "3ea61b06-e22a-459b-bb96-d900fb8f843a",
"description": "Our place is 2 blocks from Vista Park (Farmer's Market), Historic Warren Ballpark, and about 2 miles from Old Bisbee where there is shopping, dining, and site seeing. We offer continental breakfast. You get the quiet life with great mountain and garden views. This is a 100+ year old cozy home which has been on both the Garden and Home tours. You have access to whole house, except for 1 restricted area (She-Shack). Hosts are on site in a casita in the back from 8pm until 7am when we are in town./AirBnB_v3$
Repo:
Our home has two bedrooms, one king and one queen. There are 2 bathrooms, 1 1950's soak tub with shower and 1 with shower only. Guests have access to the living/dining room area, and the kitchen (except for use of stove/oven). Each morning, coffee/tea, and muffins are ready for guests. A small frig is available in the dining room with water/juice and an area for guest items. 1 parking space is directly across the street.",
"number_rooms": 2,
"number_bathrooms": 2,
"max_guest": 4,
"price_by_night": 82,
"latitude": 31.4141,
"longitude": -109.879,
"updated_at": "2017-03-25T02:17:06"
},
{
"class": "Place",
"created_at": "2017-03-25T12:17:06",
"id": "85f979ad-a345-4190-9d1b-719bb3c642ba",
"name": "Little blue House in New Orleans",
"city_id": "1da255c0-f023-4779-8134-2b1b40f87683",
"user_id": "44b3ab44-4798-4a3a-9f72-ee1eeace4b33",
"description": "Nice place closed to Bourbon street.",
"number_rooms": 1,
"number_bathrooms": 1,
"max_guest": 3,
"price_by_night": 42,
"latitude": 29.951065,
"longitude": -90.071533,
"updated_at": "2017-03-25T02:17:06"
},
...
guillaume@ubuntu:
GitHub repository: AirBnB_clone_v3 File: api/v1/views/places.py