Account history

[sgerbino]

As a blockchain user, I would like a way to query a specific accounts history.

A transaction is added to an account's history if the account is a payer, payee, called contract, event source, or event impacted account.

All RPC calls must support and enforce pagination and have simple semantics for returning the last N transactions of an account's history.

get_account_history_request {
   bytes address = 1;
   optional uint64 seq_num = 2;
   uint64 limit = 3;
   bool ascending = 4;
}

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[sgerbino]

Resolved by initial repo creation.