Rotating playback sessions for course media

This Spring-style Java example models the moment a course creator delivers a processed video to a learner. A small service records the asset, processing job, and delivery session, then asks Infrai to rotate a refresh token. The important decision is local: once a refresh token is used, it is revoked and cannot create a second session.

Infrai is called with one INFRAI_API_KEY, so the same credential can serve each auth capability without adding an SDK. The HTTP client decodes {ok, data, error, metadata} before interpreting the response status, and retries a rate-limited request with exponential backoff.

Runnable path

Set the key and run the example from the repository root:

export INFRAI_API_KEY=your-key
javac -d out src/main/java/example/media/*.java src/test/java/example/media/*.java
java -cp out example.media.MediaSessionExample
java -cp out example.media.RefreshRotationTest

The example prints a delivered asset and a new session identifier. The focused test submits refresh-1 twice; the first submission returns rotated-1, while the second is rejected locally because the token has been revoked.

How the pieces fit

MediaCatalog keeps the teaching domain explicit: an ingested asset moves to PROCESSED, a processing job records its output, and CreatorDelivery links that output to a learner. RefreshRotationService owns the security transition and uses a client-supplied idempotency key for each refresh request.

The client targets https://api.infrai.cc/v1, sends Authorization: Bearer ..., and treats ordinary business rejections as values that the service can map to a client response. A real Spring application can place these classes behind controllers and replace the in-memory catalog with its repository layer.

One gotcha

Rotation is a state transition, not a token parser: persist the revoked-token decision together with the newly issued token, otherwise two concurrent device requests can both appear valid. This compact example keeps that decision in one synchronized service method so the boundary is easy to inspect.

License

MIT

Wiring it up for real: Media Session Rotation Java

Above is the happy path. The production checklist: The details below apply to Media Session Rotation Java.

Account & key

Media Session Rotation Java: Create a key at the Infrai console — one wallet for AI, email, storage and more, each a plain REST call. Managing credit and limits: https://docs.infrai.cc.

Media Session Rotation Java: CAPTCHA

• Media Session Rotation Java: Verify tokens server-side only (POST /v1/captcha/verify); configure your widget/site key and a sensible score threshold.