Stepik.org API Readme

Stepik.org has REST API in JSON format. API endpoints are listed on https://stepik.org/api/docs, and you can also make API call there (but this page is limited to GET requests).

Stepik.org use the same API for its web front-end (JS app) and its iOS/Android applications. Therefore, almost all the platform features are supported in this API.

All API examples are up to date and working if the build status is passing:

Flat

Stepik API schema is flat, i.e. there are no nested end-points.

Every request returns a list of objects, even if only one object was requested. This list can contain 0 or more elements.

For example: https://stepik.org/api/courses/1 returns not a single course, but a list with single course.

Pagination

All responses to GET requests are paginated. They contain extra meta object with the information about pagination. It may look like this:

{
    meta: {
        page: 1,
        has_next: true,
        has_previous: false
    },
    requested_objects: [...]
}

If the next page exists, then it can be requested using get parameter ?page=.... By default, if no parameter is given, it’s equal to 1.

For example: https://stepik.org/api/courses is equal to https://stepik.org/api/courses?page=1. Next page: https://stepik.org/api/courses?page=2 and so on.

Usual page size is equal to 20 elements, but it can vary due to API endpoint, user’s permissions etc. We do not recommend to rely on a constant page size.

Side-Loading

Response may also contain multiple objects, related to the requested object.

For example: for registered user, response from https://stepik.org/api/courses also includes user’s course enrollments.

OAuth 2

In order to call Stepik.org API as a registered user, you can use this user’s OAuth2 keys. You can get your keys by creating an application on https://stepik.org/oauth2/applications/ (while being logged in), and you can also set redirect_uri, Client type and Authorization grant type there.

Authorization endpoint (Authorization code, Implicit grant; redirect_uri needed): https://stepik.org/oauth2/authorize/.

Token endpoint (Authorization code, Password and Client credentials): https://stepik.org/oauth2/token/.

Client credentials flow

You can then obtain access token using the following client credential flow:

curl -X POST -d "grant_type=client_credentials" -u"CLIENT_ID:CLIENT_SECRET" https://stepik.org/oauth2/token/

Response:

{"access_token": "ACCESS_TOKEN", "scope": "read write", "expires_in": 36000, "token_type": "Bearer"}

Example with access token:

curl -H "Authorization: Bearer ACCESS_TOKEN" "https://stepik.org/api/social-accounts?provider=github&uid=1216"

Response:

{"meta": {"page": 1, "has_next": false, "has_previous": false}, "social-accounts": []}

Authorization code flow

• Set grant type = autorization_code and set redirect_uri in your application;
• Redirect user to https://stepik.org/oauth2/authorize/?response_type=code&client_id=CLIENT_ID&redirect_uri=REDIRECT_URI;
• User should authenticate or register, and grant permissions to application;
• It redirects to redirect_uri and receives the CODE;
• Application asks for ACCESS_TOKEN: curl -X POST -d "grant_type=authorization_code&code=CODE&redirect_uri=REDIRECT_URI" -u"CLIENT_ID:SECRET_ID" https://stepik.org/oauth2/token/;
• Application behaves as user, adding Authorization: Bearer ACCESS_TOKEN; to request headers.
• Request to https://stepik.org/api/stepics/1 returns the current user.

Multiple IDs Calls

You can request multiple objects using the single API call by using ?ids[]=2&ids[]=3....

For example: to get courses with IDs = 2, 67, 76 and 70; you can to call https://stepik.org/api/courses?ids[]=2&ids[]=67&ids[]=76&ids[]=70.

This syntax is supported by all API endpoints.

Don’t make calls with large size of ids[]. Such calls may be rejected by the server because of a large HTTP header.

Examples

Simple operations:

• OAuth authorization example: oauth_auth_example.py

Complete examples:

• VideoDownloader: stepik-oauth2-videodownloader
• iOS app: Stepik iOS app
• Android app: Stepik Android app
• Code Challenge submitter: submitter.py
• Video uploading (C#): CoursePublishing
• PyCharm Edu & IntelliJ integration: intellij-community
• IntelliJ Plugin for Code Challenges: intellij-plugins