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starknet monitoring: paginate events #506

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merged 1 commit into from
Aug 6, 2024
Merged

starknet monitoring: paginate events #506

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55 changes: 37 additions & 18 deletions relayer/pkg/chainlink/ocr2/client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -184,6 +184,42 @@ func (c *Client) LinkAvailableForPayment(ctx context.Context, address *felt.Felt
return ans, nil
}

func (c *Client) collectAllEvents(ctx context.Context, block starknetrpc.BlockID, address *felt.Felt, eventKey *felt.Felt, pageSize int) (events []starknetrpc.EmittedEvent, err error) {
input := starknetrpc.EventsInput{
EventFilter: starknetrpc.EventFilter{
FromBlock: block,
ToBlock: block,
Address: address,
Keys: [][]*felt.Felt{{eventKey}}, // skip other event types
},
ResultPageRequest: starknetrpc.ResultPageRequest{
ChunkSize: pageSize,
},
}

chunk, err := c.r.Events(ctx, input)

if err != nil {
return nil, err
}

events = chunk.Events

for chunk.ContinuationToken != "" {
input.ResultPageRequest.ContinuationToken = chunk.ContinuationToken

chunk, err = c.r.Events(ctx, input)

if err != nil {
return nil, err
}

events = append(events, chunk.Events...)
}

return events, nil
}

func (c *Client) fetchEventsFromBlock(ctx context.Context, address *felt.Felt, eventType string, blockNum uint64) (events []starknetrpc.EmittedEvent, err error) {
latestBlockHeight, err := c.r.LatestBlockHeight(ctx)
if err != nil {
Expand All @@ -200,24 +236,7 @@ func (c *Client) fetchEventsFromBlock(ctx context.Context, address *felt.Felt, e

eventKey := starknetutils.GetSelectorFromNameFelt(eventType)

input := starknetrpc.EventsInput{
EventFilter: starknetrpc.EventFilter{
FromBlock: block,
ToBlock: block,
Address: address,
Keys: [][]*felt.Felt{{eventKey}}, // skip other event types
// PageSize: 0,
// PageNumber: 0,
},
ResultPageRequest: starknetrpc.ResultPageRequest{
// ContinuationToken: ,
ChunkSize: 10,
},
}
chunk, err := c.r.Events(ctx, input)
events = chunk.Events

// TODO: check events.isLastPage, query more if needed
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this todo was never implemented, so this PR is doing it (basically)

events, err = c.collectAllEvents(ctx, block, address, eventKey, 10)

if err != nil {
return events, fmt.Errorf("couldn't fetch events for block: %w", err)
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