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paycrest create order indexer
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| func (s *IndexerService) IndexOrderCreated(ctx context.Context, client types.RPCClient, network *ent.Network) error { | |
| var err error | |
| // Connect to RPC endpoint | |
| if client == nil { | |
| client, err = types.NewEthClient(network.RPCEndpoint) | |
| if err != nil { | |
| return fmt.Errorf("IndexOrderCreated.NewEthClient: %w", err) | |
| } | |
| } | |
| // Initialize contract filterer | |
| filterer, err := contracts.NewPaycrestFilterer(OrderConf.PaycrestOrderContractAddress, client) | |
| if err != nil { | |
| return fmt.Errorf("IndexOrderCreated.NewPaycrestFilterer: %w", err) | |
| } | |
| // Index missed blocks | |
| go func() { | |
| // Filter logs from the last lock payment order block number | |
| opts := s.getMissedOrderBlocksOpts(ctx, client, network, lockpaymentorder.StatusPending) | |
| // Fetch logs | |
| var iter *contracts.PaycrestOrderCreatedIterator | |
| retryErr := utils.Retry(3, 5*time.Second, func() error { | |
| var err error | |
| iter, err = filterer.FilterOrderCreated(opts, nil, nil, nil) | |
| return err | |
| }) | |
| if retryErr != nil { | |
| logger.Errorf("IndexOrderCreated.FilterOrderCreated: %v", retryErr) | |
| return | |
| } | |
| // Iterate over logs | |
| for iter.Next() { | |
| err := s.createLockPaymentOrder(ctx, client, network, iter.Event) | |
| if err != nil { | |
| logger.Errorf("IndexOrderCreated.createOrder: %v", err) | |
| continue | |
| } | |
| } | |
| }() | |
| if ServerConf.Environment != "test" { | |
| // Start listening for deposit events | |
| logs := make(chan *contracts.PaycrestOrderCreated) | |
| sub, err := filterer.WatchOrderCreated(&bind.WatchOpts{ | |
| Start: nil, | |
| }, logs, nil, nil, nil) | |
| if err != nil { | |
| return fmt.Errorf("IndexOrderCreated.WatchOrderCreated: %w", err) | |
| } | |
| defer sub.Unsubscribe() | |
| logger.Infof("Listening for OrderCreated events...\n") | |
| for { | |
| select { | |
| case log := <-logs: | |
| err := s.createLockPaymentOrder(ctx, client, network, log) | |
| if err != nil { | |
| logger.Errorf("IndexOrderCreated.createLockPaymentOrder: %v", err) | |
| continue | |
| } | |
| case err := <-sub.Err(): | |
| if err == nil { | |
| sub.Unsubscribe() | |
| // Retry the subscription | |
| retryErr := utils.Retry(3, 5*time.Second, func() error { | |
| sub, err = filterer.WatchOrderCreated(&bind.WatchOpts{ | |
| Start: nil, | |
| }, logs, nil, nil, nil) | |
| return err | |
| }) | |
| if retryErr != nil { | |
| logger.Errorf("IndexOrderCreated.WatchOrderCreated: %v", retryErr) | |
| return retryErr | |
| } | |
| } else { | |
| logger.Errorf("IndexOrderCreated.logError: %v", err) | |
| continue | |
| } | |
| } | |
| } | |
| } | |
| return nil | |
| } |
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