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Two functions batch and batch_all are slightly similar
batch: https://github.com/paritytech/substrate/blob/master/frame/utility/src/lib.rs#L201
batch_all: https://github.com/paritytech/substrate/blob/master/frame/utility/src/lib.rs#L323
Questions:
batch and when to use batch_all?The docs of both mention the difference. For batch it is:
/// Send a batch of dispatch calls.
And for batch_all it is:
/// Send a batch of dispatch calls and atomically execute them.
So, when you send a batch with batch with 5 calls. The third call in the batch fails, the changes of the first two calls are not reverted and committed to the block. batch_all would rollback all changes done to the state. However, the user would still pay for the transaction even if all changes are rolled back.
