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How would you go about pulling live mempool data like https://tzflow.com/? I have a private node and I've looked at the /chains/main/mempool/pending_operations endpoint, but I'm not sure how to stream pending transactions.

2 Answers 2

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tzflow.com uses the /chains/main/mempool/monitor_operations RPC to get a stream of operations submitted to the mempool of one representative node.

As mentioned elsewhere here, the node closes this stream on each new block.

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  • Aha! This is what I was looking for. Thanks.
    – bhaas
    Nov 16, 2022 at 18:32
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/chains/main/mempool/monitor_operations streams pending transactions, but the connection is closed when the node gets a new head block. You can do this in a loop to keep streaming.

(Edited to replace pending with monitor in the RPC :-))

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  • In the body of the response, I don't see anything marked as pending. It shows applied, refused, outdated, etc.
    – bhaas
    Nov 14, 2022 at 22:56

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