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77 lines
1.7 KiB
77 lines
1.7 KiB
package services
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import (
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"context"
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"github.com/coinbase/rosetta-sdk-go/types"
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hmyTypes "github.com/harmony-one/harmony/core/types"
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"github.com/harmony-one/harmony/hmy"
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)
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// EventAPI implements the server.EventsAPIServicer interface.
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type EventAPI struct {
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hmy *hmy.Harmony
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}
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func NewEventAPI(hmy *hmy.Harmony) *EventAPI {
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return &EventAPI{hmy: hmy}
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}
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// EventsBlocks implements the /events/blocks endpoint
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func (e *EventAPI) EventsBlocks(ctx context.Context, request *types.EventsBlocksRequest) (resp *types.EventsBlocksResponse, err *types.Error) {
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cacheItem, cacheHelper, cacheErr := rosettaCacheHelper("EventsBlocks", request)
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if cacheErr == nil {
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if cacheItem != nil {
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return cacheItem.resp.(*types.EventsBlocksResponse), nil
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} else {
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defer cacheHelper(resp, err)
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}
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}
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if err := assertValidNetworkIdentifier(request.NetworkIdentifier, e.hmy.ShardID); err != nil {
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return nil, err
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}
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var offset, limit int64
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if request.Limit == nil {
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limit = 10
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} else {
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limit = *request.Limit
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if limit > 1000 {
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limit = 1000
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}
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}
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if request.Offset == nil {
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offset = 0
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} else {
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offset = *request.Offset
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}
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resp = &types.EventsBlocksResponse{
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MaxSequence: e.hmy.BlockChain.CurrentHeader().Number().Int64(),
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}
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for i := offset; i < offset+limit; i++ {
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block := e.hmy.BlockChain.GetBlockByNumber(uint64(i))
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if block == nil {
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break
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}
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resp.Events = append(resp.Events, buildFromBlock(block))
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}
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return resp, nil
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}
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func buildFromBlock(block *hmyTypes.Block) *types.BlockEvent {
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return &types.BlockEvent{
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Sequence: block.Number().Int64(),
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BlockIdentifier: &types.BlockIdentifier{
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Index: block.Number().Int64(),
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Hash: block.Hash().Hex(),
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},
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Type: types.ADDED,
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}
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}
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