How do i process transactions that are pending by filtering on the ERC20 token address

[mdm183]

Currently I am using the EthNewPendingTransactionObservableSubscription method, which works great. However I am having a challenge to filter the transactions on the ERC20 level. I can filter by applying some logic on the 'from' and 'To' address fields, however cannot seem to figure out a way to filter on the ERC20-Token data.

Separately, if I was to use the EthLogsObservableSubscription I can filter on example a pair Contract address for any confirmed transaction.

Hope I made some sense. Just need some pointers or an example - that would really help..

Thanks in advance

[juanfranblanco]

You have to do it manually, decoding the data, check the playground example on decoding Transaction Input. https://playground.nethereum.com/csharp/id/1075

[mdm183]

Thanks @juanfranblanco . Actually to check the ERC20 token transfers on the pending transaction, I need a TransferReceipt which obviously would not be generated, until the TX is mined. However using the input data of the TX I can see payload which references ERC20 token info, but quite challenging to decode. Is there a way to decode the Input data ? to get quantity/value info

Example:
0x2ad33c590000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d0000000000000000000000000000000000000000000000000b130a28a6e06180000000000000000000000000000000000000000000000000000003d1e9b0d8b1000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2000000000000000000000000562e362876c8aee4744fc2c6aac8394c312d215d0000000000000000000000000000000000000000000000000000000000000bb8000000000000000000000000d0be1fded5d964619b92b3672c08c43305529be00000000000000000000000000000000000000000000000000000bdb878e67000

[juanfranblanco]

@mdm183 I assume you found it, but in case here is the sample in the playground https://playground.nethereum.com/csharp/id/1075