ethOnBlock
Name: ethOnBlock
A stream of the changes in the EVM state when a new block is mined. The stream includes the results of eth_call and other RPC requests provided by users and is restricted based on the number of calls.
This Stream is only available via gateway API. Cloud-API does not support ethOnBlock stream.
Options
Key | Description | Values |
| Fields to include in the on block event stream |
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| Fields used to build an RPC call request |
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Method | Call Documentation | Additional Fields |
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Examples
Subscribing to the Gateway Feed in Python (line 6 creates the subscription):
import asynciofrom bloxroute_cli.provider.ws_provider import WsProviderws_uri = "ws://127.0.0.1:28333"async def main():async with WsProvider(ws_uri) as ws:subscription_id = await ws.subscribe("ethOnBlock",{"call-params": [{"name": "my_call_name","method": "eth_call","from": "0x0000000000000000000000000000000000000000","to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567","gas": "0x76c0","value": "0x9184e72a","data": "0x00"},{"name": "number","method": "eth_blockNumber"}]})while True:next_notification = await ws.get_next_subscription_notification_by_id(subscription_id)print(next_notification) # or process it generallyawait ws.unsubscribe(subscription_id)if __name__ == '__main__':asyncio.get_event_loop().run_until_complete(main())
The OnBlock Event Stream is not available via Cloud-API.
TaskCompletedEventis received after all calls have been executed upon receipt of a block.TaskDisabledEvent is received if there is an error response to a call, indicating that the call has been disabled.
<<< {'name': 'balance', 'response': {'result': '0x1'}, 'blockHeight': 11654331, 'tag': 11654331}{'name': 'height', 'response': {'result': '0xb1d4bb'}, 'blockHeight': 11654331, 'tag': 11654331}{'name': 'TaskDisabledEvent', 'response': {'commandMethod': 'eth_getBalance', 'blockOffset': 0, 'callName': 'balance', 'callPayload': {'address': '0x0000000000000000000000000000000000000000'}, 'active': False}, 'blockHeight': 11654331, 'tag': 11654331}{'name': 'number', 'response': {'result': '0x0'}, 'blockHeight': 11654331, 'tag': 11654331}{'name': 'TaskCompletedEvent', 'response': {}, 'blockHeight': 11654331, 'tag': 11654331}}
