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Subscribe to events
Subscribe to events with the WebSocket
subscription methods
.
Subscription is only available over stateful transports such as WebSocket. Subscription requests cannot be made over HTTPS.
Example event subscription
The following WebSocket subscription example fires a notification each time a new header is appended to the chain:
1
$ wscat -c wss://mainnet.infura.io/ws/v3/YOUR-PROJECT-ID
2
>
{
"jsonrpc"
:
"2.0"
,
"id"
:
1
,
"method"
:
"eth_subscribe"
,
"params"
:
[
"newHeads"
]}
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Contents
Example event subscription