AirBnB Clone - The Console - RESTful-API

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The console is the first segment of the AirBnB project at Holberton School that will collectively cover fundamental concepts of higher level programming. The goal of AirBnB project is to eventually deploy our server a simple copy of the AirBnB Website(HBnB). A command interpreter is created in this segment to manage objects for the AirBnB(HBnB) website.

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Description Project

RESTful - Api Diaagram

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Repository to study the following Topic: RESTful-API

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

File Descriptions

console.py - the console contains the entry point of the command interpreter. List of commands this console current supports:

  • EOF - exits console
  • quit - exits console
  • <emptyline> - overwrites default emptyline method and does nothing
  • create - Creates a new instance of BaseModel, saves it (to the JSON file) and prints the id
  • destroy - Deletes an instance based on the class name and id (save the change into the JSON file).
  • show - Prints the string representation of an instance based on the class name and id.
  • all - Prints all string representation of all instances based or not on the class name.
  • update - Updates an instance based on the class name and id by adding or updating attribute (save the change into the JSON file).

Diagram Class

This diagram shows the relationship between all the classes created:

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How to start it

FileStorage

The default mode.

In FileStorage mode, every time the backend is initialized, HolbertonBnB instantiates an instance of FileStorage called storage. The storage object is loaded/re-loaded from any class instances stored in the JSON file file.json. As class instances are created, updated, or deleted, the storage object is used to register corresponding changes in the file.json.

DBStorage

Run by setting the environmental variables HBNB_TYPE_STORAGE=db.

In DBStorage mode, every time the backend is initialized, HolbertonBnB instantiates an instance of DBStorage called storage. The storage object is loaded/re-loaded from the MySQL database specified in the environmental variable HBNB_MYSQL_DB, using the user HBNB_MYSQL_USER, password HBNB_MYSQL_PWD, and host HBNB_MYSQL_HOST. As class instances are created, updated, or deleted, the storage object is used to register changes in the corresponding MySQL database. Connection and querying is achieved using SQLAlchemy.

Note that the databases specified for DBStorage to connect to must already be defined on the MySQL server. This repository includes scripts setup_mysql_dev.sql and setup_mysql_test.sql to set up hbnb_dev_db and hbnb_test_db databases in a MySQL server, respectively.

Console

The console is a command line interpreter that permits management of the backend of HolbertonBnB. It can be used to handle and manipulate all classes utilized by the application (achieved by calls on the storage object defined above).


How to use it

Using the Console

The HolbertonBnB console can be run both interactively and non-interactively. To run the console in non-interactive mode, pipe any command(s) into an execution of the file console.py at the command line.

$ echo "help" | ./console.py
(hbnb)
Documented commands (type help <topic>):
========================================
EOF  all  count  create  destroy  help  quit  show  update

(hbnb)
$

Alternatively, to use the HolbertonBnB console in interactive mode, run the file console.py by itself:

./console.py

While running in interactive mode, the console displays a prompt for input:

$ ./console.py
(hbnb)

To quit the console, enter the command quit, or input an EOF signal (ctrl-D).

$ ./console.py
(hbnb) quit
$
$ ./console.py
(hbnb) EOF
$

Examples

The HolbertonBnB console supports the following commands:

create

  • Usage: create <class> <param 1 name>=<param 1 value> <param 2 name>=<param 2 value> ...
$ ./console.py
(hbnb) create BaseModel
119be863-6fe5-437e-a180-b9892e8746b8
(hbnb)
(hbnb) create State name="California"
(hbnb) quit
$ cat file.json ; echo ""
{"BaseModel.119be863-6fe5-437e-a180-b9892e8746b8": {"updated_at": "2019-02-17T2
1:30:42.215277", "created_at": "2019-02-17T21:30:42.215277", "__class__": "Base
Model", "id": "119be863-6fe5-437e-a180-b9892e8746b8"}, {'id': 'd80e0344-63eb-43
4a-b1e0-07783522124e', 'created_at': datetime.datetime(2017, 11, 10, 4, 41, 7,
842160), 'updated_at': datetime.datetime(2017, 11, 10, 4, 41, 7, 842235), 'name
': 'California'}}

show

  • Usage: show <class> <id> or <class>.show(<id>)

Prints the string representation of a class instance based on a given id.

$ ./console.py
(hbnb) create User
1e32232d-5a63-4d92-8092-ac3240b29f46
(hbnb)
(hbnb) show User 1e32232d-5a63-4d92-8092-ac3240b29f46
[User] (1e32232d-5a63-4d92-8092-ac3240b29f46) {'id': '1e32232d-5a63-4d92-8092-a
c3240b29f46', 'created_at': datetime.datetime(2019, 2, 17, 21, 34, 3, 635828),
'updated_at': datetime.datetime(2019, 2, 17, 21, 34, 3, 635828)}
(hbnb)
(hbnb) User.show(1e32232d-5a63-4d92-8092-ac3240b29f46)
[User] (1e32232d-5a63-4d92-8092-ac3240b29f46) {'id': '1e32232d-5a63-4d92-8092-a
c3240b29f46', 'created_at': datetime.datetime(2019, 2, 17, 21, 34, 3, 635828),
'updated_at': datetime.datetime(2019, 2, 17, 21, 34, 3, 635828)}
(hbnb)

all

  • Usage: all or all <class> or <class>.all()

Prints the string representations of all instances of a given class. If no class name is provided, the command prints all instances of every class.

$ ./console.py
(hbnb) create BaseModel
fce2124c-8537-489b-956e-22da455cbee8
(hbnb) create BaseModel
450490fd-344e-47cf-8342-126244c2ba99
(hbnb) create User
b742dbc3-f4bf-425e-b1d4-165f52c6ff81
(hbnb) create User
8f2d75c8-fb82-48e1-8ae5-2544c909a9fe
(hbnb)
(hbnb) all BaseModel
["[BaseModel] (450490fd-344e-47cf-8342-126244c2ba99) {'updated_at': datetime.da
tetime(2019, 2, 17, 21, 45, 5, 963516), 'created_at': datetime.datetime(2019, 2
, 17, 21, 45, 5, 963516), 'id': '450490fd-344e-47cf-8342-126244c2ba99'}", "[Bas
eModel] (fce2124c-8537-489b-956e-22da455cbee8) {'updated_at': datetime.datetime
(2019, 2, 17, 21, 43, 56, 899348), 'created_at': datetime.datetime(2019, 2, 17,
21, 43, 56, 899348), 'id': 'fce2124c-8537-489b-956e-22da455cbee8'}"]
(hbnb)
(hbnb) User.all()
["[User] (8f2d75c8-fb82-48e1-8ae5-2544c909a9fe) {'updated_at': datetime.datetim
e(2019, 2, 17, 21, 44, 44, 428413), 'created_at': datetime.datetime(2019, 2, 17
, 21, 44, 44, 428413), 'id': '8f2d75c8-fb82-48e1-8ae5-2544c909a9fe'}", "[User]
(b742dbc3-f4bf-425e-b1d4-165f52c6ff81) {'updated_at': datetime.datetime(2019, 2
, 17, 21, 44, 15, 974608), 'created_at': datetime.datetime(2019, 2, 17, 21, 44,
15, 974608), 'id': 'b742dbc3-f4bf-425e-b1d4-165f52c6ff81'}"]
(hbnb)
(hbnb) all
["[User] (8f2d75c8-fb82-48e1-8ae5-2544c909a9fe) {'updated_at': datetime.datetim
e(2019, 2, 17, 21, 44, 44, 428413), 'created_at': datetime.datetime(2019, 2, 17
, 21, 44, 44, 428413), 'id': '8f2d75c8-fb82-48e1-8ae5-2544c909a9fe'}", "[BaseMo
del] (450490fd-344e-47cf-8342-126244c2ba99) {'updated_at': datetime.datetime(20
19, 2, 17, 21, 45, 5, 963516), 'created_at': datetime.datetime(2019, 2, 17, 21,
45, 5, 963516), 'id': '450490fd-344e-47cf-8342-126244c2ba99'}", "[User] (b742db
c3-f4bf-425e-b1d4-165f52c6ff81) {'updated_at': datetime.datetime(2019, 2, 17, 2
1, 44, 15, 974608), 'created_at': datetime.datetime(2019, 2, 17, 21, 44, 15, 97
4608), 'id': 'b742dbc3-f4bf-425e-b1d4-165f52c6ff81'}", "[BaseModel] (fce2124c-8
537-489b-956e-22da455cbee8) {'updated_at': datetime.datetime(2019, 2, 17, 21, 4
3, 56, 899348), 'created_at': datetime.datetime(2019, 2, 17, 21, 43, 56, 899348
), 'id': 'fce2124c-8537-489b-956e-22da455cbee8'}"]
(hbnb)

Testing :straight_ruler

Command used for unittest:

$python3 unittest -m discover tests

Or you can specify a single test file:

$python3 unittest -m tests/test_console.py

Task Project


File Name Task Name Task Description
AirBnB_clone_v3 0. Restart from scratch! Repository cloned.
AirBnB_clone_v3 1. Never fail! python3 -m unittest discover tests.
code_review.txt 2. Code review For this project, you will need to review a peer’s pull request on the branch storage_get_count (which will be made for question 3), and then accept the pull request, with your review in the comments.
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 3. Improve storage Update DBStorage and FileStorage, adding two new methods. All changes should be done in the branch storage_get_count
api/__init__.py, api/v1/__init__.py, api/v1/views/__init__.py, api/v1/views/index.py, api/v1/app.py 4. Status of your API It’s time to start your API! Your first endpoint (route) will be to return the status of your API
api/v1/views/index.py 5. Some stats? Create an endpoint that retrieves the number of each objects by type
api/v1/app.py 6. Not found 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"
api/v1/views/states.py, api/v1/views/__init__.py 7. State Create a new view for State objects that handles all default RestFul API actions
api/v1/views/cities.py, api/v1/views/__init__.py 8. City Same as State, create a new view for City objects that handles all default RestFul API actions
api/v1/views/amenities.py, api/v1/views/__init__.py 9. Amenitiy Create a new view for Amenity objects that handles all default RestFul API actions
api/v1/views/users.py, api/v1/views/__init__.py 10. User Create a new view for User object that handles all default RestFul API actions
api/v1/views/places.py, api/v1/views/__init__.py 11. Place Create a new view for Place objects that handles all default RestFul API actions
api/v1/views/places_reviews.py, api/v1/views/__init__.py 12. Reviews Create a new view for Review object that handles all default RestFul API actions
api/v1/app.py 13. HTTP access control (CORS) Create a new view for Review object that handles all default RestFul API actions

Author



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