mfup-fastapi

from mfup_fastapi import MfupConfig, create_app

app = create_app(
    MfupConfig(
        base_dir="./state",
        authorize=my_authorize,
        prefix="/api",
        client_publish=False,
        on_committed=my_processor,
    )
)

The application supplies identity, scopes and authorize. It may return an absolute per-session baseDir, targetDir, quotas and context. The core remains independent of application scope names. Ordinary multipart carries files; WebSocket carries questions and snapshots.

For embedding, MfupEngine(config).router and .lifespan (or startup/shutdown) manage routing and cleanup. Use one lifecycle per Engine and one process per metadata directory. create_app applies config.prefix and owns the lifecycle.

map_file runs during manifest reception, before body reads and returns a relative path or None. on_committed receives CommitEvent and can return a boolean to override server auto_publish (default False). client_publish=False reserves publication for the backend. Engine exposes get_session, list_staged, open_staged, prepare_publish, publish and retry_committed. Callback failure preserves the accepted files and returns a successful commit with processing='failed'.

Standalone: MFUP_AUTHORIZE=myapp.hooks:authorize python -m mfup_fastapi. MfupConfig.from_env supports the same MFUP_* configuration as the Node package; Python hooks can be callables or module:attribute strings. See docs/EXTENDING.md and the multiuser-scopes example in the repository.

Extension API · HTTP protocol

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