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Questions tagged [blockchain-events]

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Event subscription error from EVM compatible Substrate chain

i'm trying to listen events against a solidity smart contract deployed on EVM compatible Substrate chain and getting following error Error listening event ChangeOwner : Error: Returned error: Method ...
BlockBird's user avatar
1 vote
0 answers

Best Practices for Implementing Private Events in Blockchain: Restricting Event Visibility to Specific Addresses

I'm exploring a nuanced aspect of blockchain functionality and seeking community insights. In blockchain systems, events are typically public, accessible to any address. However, I'm interested in ...
AnonDao's user avatar
  • 23
1 vote
1 answer

Understanding the persistence of historical block events despite automatic removal by the System pallet in Substrate

In the Substrate documentation, I came across a statement stating that at the beginning of a new block, the System pallet automatically removes all events that were stored from the previous block. ...
the dev's user avatar
  • 477
3 votes
1 answer

How to emit events from inner contracts

let's say we have a contract which calls other contract's function that emits an event. What is the approach to emit the event coming from the inner contract's message? Currently, there is only an ...
petreze's user avatar
  • 63
2 votes
1 answer

`BlockchainEvents` reliability and differences on a syncing node

On an actively syncing parachain node, I observed an import_notification_stream subscriber is not notified. In the same code context, if I subscribe to the finality_notification_stream instead, I get ...
TMichel's user avatar
  • 183