Dan Abramov • 5/31/2025

Progressive JSON

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This article introduces the concept of 'Progressive JSON', drawing an analogy to Progressive JPEGs. It critiques the standard method of sending complete JSON objects and explores the limitations of naive JSON streaming. The article then proposes a solution where a usable, incomplete version of the data is sent first and progressively updated, allowing the client to start work immediately while the server finishes generating slower parts of the data.

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#json #streaming #data transfer
Progressive JSON

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