EthereumIntermediate

Atomic transaction

An operation in which the included state changes succeed together or are rolled back together under the system's execution rules.

PLAIN-ENGLISH DEFINITION

In more detail

Atomicity lets contracts compose dependent actions. It does not mean the operation is safe, private or inexpensive.

PUT IT IN CONTEXT

A practical example

A flash-loan operation reverts if its required repayment is not completed.

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Educational explanation based on the linked documentation. Protocol details can evolve. Sources & standards