Events Overview

Event streaming flips the interaction model by delivering blockchain events directly to customers. Currently, the delivery is limited to webhooks. Customers will have to register a webhook in order to receive blockchain events.

Blockchain events are delivered in near real-time as they happen on the chain. This enables an event-driven architecture where customers receive only the data they're interested in and only when relevant. Customers can control which events will be sent by event streaming. It works on a conditional basis that is reflected in the form of rules and variables.

Supported Protocols

ProtocolNetwork
Bitcoin CashMainnet
BitcoinMainnet
Testnet
DogecoinMainnet
PolkadotMainnet
Testnet
EthereumMainnet
Holesky
LitecoinMainnet
OptimismMainnet
PolygonMainnet
Amoy

Event Streaming has two conditions to receive events:

EventsConditionsSupported Event Types
Based on the Event TypeReceive events when a blockchain event of a specific type occurs.unified_block
unified_reorg
Based on AddressReceive events when a blockchain event is related to a specific address.unified_confirmed_tx
unified_confirmed_balance
unified_confirmed_tx_trace
unified_confirmed_tx_log
unified_staking_reward
unified_staking_status

Config API

The Config API is the main entry point for initiating your journey with event streaming. The main URL for accessing the Config API is:

https://svc.blockdaemon.com/streaming/v2

Allow-listed IPs

To enhance security and prevent DDoS attacks, allow-list the following IP addresses that will hit your Events Webhook endpoints:

  • 35.245.225.131
  • 34.150.141.91
  • 34.85.141.205

Example Setup

In this section, we go over the setup of a new rule to receive:

  • Notifications for new blocks.
  • Notifications for transactions and balances for an account.

Follow the steps below:

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