ghubstan 987d89319e Use ListenableFuture and callback when requesting tx fee ... This change fixes the blocking problem in the fee rate request api. Also redefined the TxFeeRateInfo. - Redefined grpc.proto message TxFeeRateInfo, added lastFeeServiceRequestTs field. (CLI user may want to know TS of last fee request.) - Adjusted TxFeeRateInfo proto wrapper. - Adjusted CurrencyFormat and BtcTxFeeRateTest to new TxFeeRateInfo. - Added @Getter annotation to FeeService. (CLI user may want to know TS of last fee request). - Pass resultHandler from GrpcWalletsService through CoreApi, to CoreWalletsService's tx fee rate api methods.		2020-12-01 21:10:47 -03:00
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src	Use ListenableFuture and callback when requesting tx fee	2020-12-01 21:10:47 -03:00