Q: Graph-node subscriptions

[Jacob273]

Q: Is there any way to subscribe (e.g via websocket) for event (eth contract's event) which is handled in subgraph/graph-node?

1. Let's say we have following event defined in subgraph.yaml under eventhandlers.event: - event: Transfer(indexed address,indexed address,indexed uint256) handler: handleTransfer

2. Such event ( Transfer(indexed address,indexed address,indexed uint256) ) is also defined in contract's ABI (and so it is published by eth network).

Is there any way to subscribe for it directly via graph-node, so that every transfer which results in saving some data/entity in graph-node and which we may query for will be immediately published? Or does this kind of publishing logic has to be included in the event handler? (or as I understood its subgraph which shall define type Subscription in its schema.graphql, so we may then listen for it through graph-node, yes?)

I would like to not have to make any kind of polling and get real-time data from the graph-node when it does save data/entities.

[Jacob273]

Is there any example/doc regarding how we may subscribe through GRAPH-QL-WS? I've managed to connect to graphql-ws for one of the subgraphs but I did not manage to subscribe for anything.

[Jacob273]

I'll close it as there's no activity.

[khuepm]

Same here, may be websocket is not implement.

[eldimious]

Hello, is there any documentation for the above one? Cause i would like to use graphql subscriptions to subscribe to entities changes when events are emitted and handlers modify entities, instead of using graphql polling