Hi this is my web3 code

events.watch(function (error,result){
            if (error) {


Here when ever an event occurs it trigger the watch function. But the problem is, it callback the function, twice. How can I prevent this? In every discussion they just said I fixed and closed the thread. What is the solution to stop triggering twice? I'm using web3 0.20.0. Thank you.

  • You're likely processing more than one event. Have you checked to see that the events are what you're expecting? Can you scope the watch to only the event(s) you're interested in?
    – Madbreaks
    Jun 8, 2022 at 17:25

1 Answer 1


You could create a hash list based on the transaction's hash and make sure it was not processed before running the code

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