flask-restx swagger example

src/flask_api_tutorial/config.py::BLACK PASSED [ 15%] description: A greeting in which language? This, along with the url_prefix value in Line 8, is why all URL routes in the auth_ns namespace begin with /api/v1/auth. If the app.config["TESTING"] flag is set, then five seconds is used as the lifespan of the token. documentation

This post on the SparkNotes blog provides a nice summary of the types of changes that are breaking changes and the types that are not: Just like every other extension, Flask-RESTx can be initialized with a Flask application object (i.e., api.init_app(app) doing so would place the API at the website root). The API model we define as the expected output of this API route omits the id and password_hash attributes from the response. """, """Handles HTTP requests to URL: /api/v1/auth/register. src/flask_api_tutorial/api/widgets/__init__.py::BLACK PASSED [ 38%] OPTIONAL. Its time to fix that. The endpoint parameter overrides the default value for the endpoint name. Next, we need to create the API endpoint and incorporate it with the auth_reqparser and process_registration_request function. Based on the expect and marshal annotations, flask-restplus will automatically convert the JSON payloads to dictionaries and vice versa. RECOMMENDED. The refresh token, which can be used to obtain new access tokens using the same authorization grant as described in Section 6. directory containing both app.py and requirements.txt: The Flask-API package is a drop-in replacement for

the incoming request header "RStudio-Connect-Credentials".

src/flask_api_tutorial/models/__init__.py::BLACK PASSED [ 42%] console at GET /apidocs. be true. Most environments have unique usernames where each user identifies a single Wow, that required a lot more detail than I originally anticipated. Grep excluding line that ends in 0, but not 10, 100 etc, bash loop to replace middle of string after a certain character.

Next, we will figure out how to create unit tests that interact with the API. Leave as a LEGEND. Please let me know if you believe I have implemented anything incorrectly. src/flask_api_tutorial/api/auth/business.py::FLAKE8 Find centralized, trusted content and collaborate around the technologies you use most. The answer is not as straightforward or obvious as you might think. Are these actions even appropriate for a REST API? A materially different internal behavior of an API call such as a change to the default behavior. py37 create: /Users/aaronluna/Projects/flask-api-tutorial/.tox/py37 These files perform specific roles that are common to request handling and response formatting: business.py: This file contains the business logic that executes when an API endpoint in this namespace receives a valid request. My intent is to adhere to the requirements in every possible case. The chart below shows the folder structure for this section of the tutorial. Flask-RESTX encourages best practices with minimal setup. py37: commands succeeded Value is case insensitive. Lets go through the test_auth_register function and explain what is being tested: Line 5: The `register_user` function which we just dissected and documented is imported. (e.g., process registration request, process login request, etc.). OAuth 2.0 has its own specification document, RFC6749.

In the same way that we can organize our Flask project with blueprints, we can organize our Flask-RESTx API with namespace objects. user and groups the name of the groups the user is a member of. run.py::BLACK PASSED [ 3%] You can define the expected API model by creating a dict object where the keys are the names of the attributes on the JSON object and the values are a class that will validate and convert the attribute to the required data type. However, the design I chose for the endpoint names clearly violates the naming requirements for RESTful URIs. For an authentication API, I believe the best design is to use routes with the verbs /register, /login, etc. It generates a small webpage, which documents your API. _______________________________________________________ summary ________________________________________________________ By using the expect annotation, for every HTTP method we can specify the expected model of the payload body. The term REST was introduced in 2000 by Roy Fielding in his doctoral thesis, titled Architectural Styles and the Design of Network-based Software Architectures. Which will generate a swagger yaml document for the API. If you attempt to register with an email address that already exists in the database, you should receive a response with status code 409 HTTPStatus.CONFLICT. The second argument is a string value explaining why the client's request resulted in the response code that was sent, and is included in the Swagger UI page. I'm reading the documentation for swagger documentation with flask-restx, and following the examples. For example, the API route that registers a new user account will be /api/v1/auth/register. The comparison does not consider the value of the time component when this comparison is performed.

At the very least you should read Chapter 5 Representational State Transfer (REST). To avoid a circular import, we do not want the app.api package to be imported unless the create_app method is invoked. In this post, we will work on all files marked as NEW CODE. OpenAPI, or Marshmallow py37 run-test: commands[0] | pytest APISpec is to provide a Swagger UI tests/test_user.py::test_decode_access_token_expired PASSED [ 94%] ------------------- ------- --------------------------, api.auth_register POST /api/v1/auth/register, http -f :5000/api/v1/auth/register email=user@test.com password=123456, application/x-www-form-urlencoded; charset=utf-8, http -f :5000/api/v1/auth/register email=user2@test.com password=123456, "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE1ODI5MzQwMzMsImlhdCI6MTU4MjkzMzEzMywic3ViIjoiNjcwOTVlZDUtZjdhYS00MGE3LTgzZGUtNzQ1YmMzYjA5NDFmIiwiYWRtaW4iOmZhbHNlfQ.ylvNfoWwhI-NRU2WS65t4ti6sTbOEDQcJYIQC6ua0Do", """Shared functions and constants for unit tests. It

The next step in configuring the API is registering the api_bp blueprint with our Flask application. I prefer to have all error messages reported for all arguments in our request parser. rest of the code are to write the yaml in file. Line 23-24: The next thing we do is call User.find_by_public_id with the public_id value decoded from access_token. src/flask_api_tutorial/models/__init__.py::FLAKE8 PASSED [ 40%] tests/test_config.py::test_config_development PASSED [ 80%] However, I can't find an explanation of how to document the API's response body. You should run tox to make sure the new test cases all pass and that nothing else broke because of the changes: The warning that is generated from Flask-RESTx is a very minor issue with the manner in which one of their modules is importing a type from the standard library. In the next section we will create the remaining three auth_ns endpoints, so the entire set of JWT authentication requirements should be complete at the next checkpoint. Line 21: Per the specification, the access_token attribute is included as a parameter of the serialized JSON in the response body. Create unit tests to verify that the input validation provided by the request parsers/API models is working correctly, and verify the endpoint behaves as expected. REST framework provides. We will see this shortly in the auth/user API route which inspects the access token of the current user and returns a representation of the User object as the HTTP response. Widget name must be validated before a new widget is added to the database (and when an existing widget is updated). src/flask_api_tutorial/util/result.py::BLACK PASSED [ 57%] can locate the application object to serve. """, (flask-api-tutorial) flask-api-tutorial $, Endpoint Methods Rule tests/util.py::BLACK PASSED [100%] HTTP/1.1 200 OKContent-Type: application/json;charset=UTF-8Cache-Control: no-storePragma: no-cache{"access_token": "2YotnFZFEjr1zCsicMWpAA","token_type": "example","expires_in": 3600,"refresh_token": "tGzv3JOkF0XG5Qx2TlKWIA","example_parameter": "example_value"}. expose its documentation properly using Swagger. Announcing the Stacks Editor Beta release! Check out the Flask-RESTx docs for examples of using decorators to document the Swagger UI page (if you need even more info it's probably in the API documentation).

used for creating APIs. I say these things because most so-called REST APIs and articles explaining how to design and construct a REST API are not truly RESTful. The test client is capable of sending requests for all HTTP method types: get, post, put, delete, patch, options, head and trace. If you are familiar with Flask, Flask-RESTX should be easy to pick up. The first argument ("/register") is the URL route to register. When deploying a Flask API, ensure that you specify the correct entrypoint This will only work if the database has been initialized and the site_user table exists in the database since the SQLAlchemy extension will attempt to execute a INSERT INTO site_user SQL statement. OPTIONAL, if identical to the scope requested by the client; otherwise, REQUIRED. tests/test_auth_register.py::FLAKE8 PASSED [ 67%] This is a pre-defined type provided by Flask-RESTx that verifies that the value sent in the request is a valid email address. tests/test_auth_register.py::test_auth_register_invalid_email PASSED [ 75%] Later, we will import the api_bp object in the run module and register the blueprint with the Flask application object to complete the process of configuring the API. For POST and PUT requests that create a new resource or update an existing resource in a collection, you should instruct the client to send the resource as a JSON object in the request body. requirements.txt: Flask APIs can access the username and the names of the groups of the current tests/conftest.py::BLACK PASSED [ 65%] Minimal code required to create a working API is just 10 lines long. congratulations :), Part 1: Project Setup and Environment Configuration, Part 2: Database Models, Migrations and JWT Setup, Part 4: JWT Authentication, Decorators and Blacklisting Tokens, Part 5: RESTful Resources and Advanced Request Parsing, Part 6: Pagination, HATEOAS and Parameterized Testing, Architectural Styles and the Design of Network-based Software Architectures, Chapter 5 Representational State Transfer (REST), Understanding REST: Verbs, error codes, and authentication. flask-flasgger-example directory containing both app.py and Flask-RESTX should be easy to pick up. documentation on entrypoints All we need to do to use the url_for function is provide the name of the API endpoint, and voila, the URL is dynamically generated and provided to the post method. Line 13-14: These two lines verify that the status and message attributes exist in the response JSON and that the values indicate that the user was successfully registered. REST is truly about resource state, and how hypermedia defines the actions available to these resources. You should receive a response with status code 201 HTTPStatus.CREATED if the email address is formatted correctly (this is the only validation process being performed by auth_reqparser): Figure 5 - New user successfully registered (Swagger UI). Swagger UI is a great tool for describing and visualizing RESTful web services.

Also, docstrings for HTTP methods are rendered on the Swagger UI page and should be used to provide a short description of the method's purpose. Its not too surprising if you realize we only created one of the four auth_ns endpoints in this section. RFC6750 is the specification document that defines an authorization process where clients utilize tokens issued by a resource server to access protected resources. You can also easily create your own custom field by subclassing fileds.Raw, as shown in the Flask-RESTx docs. The reason for invoking the client fixture is obvious we need it to test the API. Using a blueprint to isolate the API will allow us to define a url_prefix for the API endpoints. To subscribe to this RSS feed, copy and paste this URL into your RSS reader.

Open src/flask_api_tutorial/api/auth/business.py, add the content below and save the file: Lines 12-13: The first thing we do is verify that the email address provided by the user has not been registered. RESTfully design /login or /register resources? rootdir: /Users/aaronluna/Projects/flask-api-tutorial, inifile: pytest.ini Line 17-20: The response decorator is solely for documentation purposes, removing these lines would have no impact on the behavior of this API endpoint.

The url_prefix value makes all API routes begin with /api/v1 (e.g., api/v1/auth/login). Flask APIs can be deployed with the Since the error message for an invalid parameter will occur in nearly every set of test cases we create, we need to add it to tests/util.py (Line 6): We need to import this value into test_auth_register.py (Line 5): Next, add the content below to test_auth_register.py and save the file: I dont think theres anything that needs to be explained since most of it is the same as the previous test case, and the difference in the response JSON was explained thoroughly. Note: During the development I found out Flask-RESTPlus is dead and a new project is forked as Flask-RestX. Once again, we only implemented a small number of features from the requirements list. The remaining parameters are the same for both arguments: location="form", required=True, nullable=False.

Numerical values are included as JSON numbers. HTTP just happens to be very popular and well-suited to REST systems. Flask Swagger documentation query parameter GET required, Flask-restful using nested fields to generate docs with nested response, getting TypeError: Object of type Nested is not JSON serializable, Flask-RESTX - Arabic text in response body, Flask-Restx Api.model(strict=True) allowing unspecified params, Python REST-API with Flask-RestX and JavaScript REST-Client served together.

The first argument is the HTTP status code to include in the response. This is really useful because it allows us to create links within our application without hardcoding any part of the path.

drwxr-xr-x 7 aaronluna staff 224 Dec 30 01:20 . This is really the only action performed in this test case, the rest of the code just verifies the server response to the registration request. All API endpoint names will be prefixed with this value (e.g., api.func_name). What makes an API RESTful is much more than creating a set of URIs and implementing the response to GET, POST, PUT, etc. nested swagger
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