2

I'm trying to create some statistics on how long a transaction spends in the mempool before being included in a block, so I can reason about future gas prices. It would appear transactions in Ethereum don't receive a timestamp until they're mined, so instead, what is the best way of observing when a transaction was submitted? If I ask Parity to inform me of all new pending transactions, and recording the local timestamp at that time, quite often the block it ends up being included in, has a timestamp that is prior to when I saw it, so this seems wildly unreliable.

Wondering how other API's obtain this information reliably, and how "gas station" sites intelligently calculate this information.

0

It is done similarly as you said. An application frequently checks to parity/geth the pending queue and stores in a database the changes.

You can have this application running in several nodes in different cloud providers to have a more broad view.

Some times block explorer companies will modify the clients their run to suit their usage. Like instead of polling for changes just trigger them when a new transaction appear.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.