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Schul-Cloud Content API

Project description

The resources API package allows easy access to the Schul-Cloud resources servers. To get an overview about how the api is defined, please refer to the repository.

Installation

You can install the package with pip from PyPI

pip install schul_cloud_resources_api_v1

Accessing the API

Suppose, a server runs under http://localhost:8080/v1. You can use the api to connect to it. If you do not have a server, you can get a test server from the package schul_cloud_resources_server_tests.

# import the api classes for access
from schul_cloud_resources_api_v1 import ApiClient, ResourceApi

# create the client objects
url = "http://localhost:8080/v1"
client = ApiClient(url)
api = ResourceApi(client)

The api object gives access to the server. Here, you can see how to access the api:

# import the resource examples
from schul_cloud_resources_api_v1.schema import get_valid_examples

# get a valid resource
resource = get_valid_examples()[0]
print(resource)

# add the resource to the server
response = api.add_resource({"data": {"type": "resource", "attributes": resource}})

# verify the resource is on the server
all_my_resssources_on_the_server = [
    _id.id for _id in api.get_resource_ids().data]
assert response.data.id in all_my_resssources_on_the_server

# get the resource from the server
resource_copy = api.get_resource(response.data.id)
assert resource_copy == resource.data.attributes

# delete the resource
api.delete_resource(response.data.id)

Authentication

There are these options for authentication:

  • no authentication: this is the default and nothing needs to be done.
  • basic authentication: authentication with user name and password
  • api-key authentication: a key is supplied to authorize the requests.

The authentication is a global state. All ApiClients use this global state. Thus, you can only authenticate at one API at a time.

import schul_cloud_resources_api_v1.auth as auth

You can remove all authentication. This is the default case.

auth.none()

You can authenticate with username and password. This is Basic Authentication.

auth.basic("username", "password")

You can authenticate with an api key.

auth.api_key("your-api-key")

Validating Resources

When you use resources, you may want to verify if they have the correct format. The format is specified in the resource-schema. This schema is included in this package.

from schul_cloud_resources_api_v1.schema import (
    get_valid_examples, get_invalid_examples, validate_resource, is_valid_resource
)

You can test if a resource is valid by calling is_valid_resource

valid_resource = get_valid_examples()[0]
assert is_valid_resource(valid_resource)

invalid_resource = get_invalid_examples()[0]
assert not is_valid_resource(invalid_resource)

If you would like to find out more about why the resource is not valid, you can use validate_resource.

validate_resource({'title': 'hello'})

In this example, it results in an error that the url property is not present but is required.

jsonschema.exceptions.ValidationError: 'url' is a required property

Failed validating 'required' in schema:
    {'properties': {'contentCategory': {'$ref': '#/definitions/ContentCategory'},
                    'contextUrl': {'$ref': '#/definitions/URL'},
                    'curricula': {'items': {'$ref': '../curriculum/curriculum.json'},
                                  'type': 'array'},
                    'dimensions': {'$ref': '#/definitions/Dimensions'},
                    'duration': {'type': 'number'},
                    'languages': {'description': 'As described in IEEE '
                                                 'LOM, Section 1.3 '
                                                 'http://129.115.100.158/txlor/docs/IEEE_LOM_1484_12_1_v1_Final_Draft.pdf',
                                  'items': {'$ref': '#/definitions/Language'},
                                  'type': 'array'},
                    'licenses': {'items': {'$ref': '../license/license.json'},
                                 'type': 'array'},
                    'mimeType': {'description': 'https://tools.ietf.org/html/rfc2046',
                                 'example': 'text/html',
                                 'type': 'string'},
                    'size': {'format': 'int64', 'type': 'integer'},
                    'thumbnail': {'$ref': '#/definitions/URL'},
                    'title': {'description': 'The title of the resource.',
                              'example': 'Schul-Cloud',
                              'type': 'string'},
                    'url': {'$ref': '#/definitions/URL'}},
     'required': ['title',
                  'url',
                  'licenses',
                  'mimeType',
                  'contentCategory',
                  'languages'],
     'type': 'object'}

On instance:
    {'title': 'hello'}

Further Reading

Project details


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