How to build a CRYPTOCURRENCY TRADING BOT w/ ethers.js (Uniswap, Pancakeswap, Quickswap, Sushiswap)

40 Comments

1. ABSOLUTE WIZARD!!!!!! Your directions are Boss!!!!! Killer delivery and structure…… I am very thankful you are sharing. You make it very easy to understand.

2. woft, that BlockFi ad aged very poorly….

3. Will it work with ETH?

4. I am getting " Uncaught Error Error: cannot estimate gas; transaction may fail or may require manual gas limit " for const approveTx = await busdContract.approve(
   
   router,
   
   BUSDamountIn
   
   ); @BlockchainWithLeif

5. my friend you here?

6. Seems like every tutorial about this subject tends to just gloss over where the ABI string comes from… I still can't figure that out. Can you explain in detail where you get the ABI method strings from? Also the contract addresses you really just glossed over that as well. That may be obvious to a person familiar with blockchain dev but as a beginner I really need you to spell it out and give me more info about how you know which addresses to use. Would be helpful to see you navigate to them from the DEX website so we all can understand that process better. Hopefully this feedback is helpful.

7. Can you please explain how i can do it that i can use this bot on poocoin with BUSD and Bep20 token connected with Metamask thx. There are so much scams. Thx a lot.

8. i need a simple buy and sell bot? is this possible to do this on pancakeswap?

9. can we use also that bot for selling tokens?

10. pls mentor how can i message you for a personal question please ser

11. i stopped right away since i dont know whats in secret

12. I need your help on an important matter. Can you contact me? Very important

13. Man, like you helped me, I'm going to help you. Watch this video and you will see how to do arbitrage with your code that you putted here and this, I hope, will make you money. https://www.youtube.com/watch?v=0coSJk-HpYE

14. I liked it. Suggestion: avoid the stickers "like" and "subscribe" all the time, that take the focus.
    Good job!

15. It helped me a lot. Thanks!

16. There is no api for historical data of dex like pancakeswap?

17. great but you should zoom in more so we can actually see what you are doing/writing.

18. absolutely the strongest video i could find! Massive thanks!

19. This is such a good tutorial, thanks heaps for taking the time to make this – liked and subscribed!

20. Would this work with Spookyswap? Would the required changes be complex?

21. You are honest, I subbed.

22. Great job, congrats! I am attempting to write a sniping code and soon realized that to be effective one needs access to a private full node. Do you run your own? Cheers

23. Really great stuff! Thank you Leif!

24. Why can't I use the default provider instead of a socket?

25. Hello, thank for this video, i have question, with this code is it possible to buy bnb with busd and buy busd with bnb?

26. Great content, thank you

27. is this a video to set up a bot for buying at the lunch of a DAO or a node ?

28. Hi, there is anyway to make transactions without a provider?

29. kindly do another video showing the format of the secret key and some testing on buying and selling. Thanks for the great content. subscribed)

30. Great tutorial man! Thanks 🙂
    When i run the script,i get an error: Error: nonce has already been user …
    Anyone has expereinced that? Thanks

31. Thanks Leif! Hey I implemented this, but with V3 when you have multi hop swaps it seems that I only get the first address. Do you know how to get the array {tokenAddress – fee – tokenAddress – fee – tokenAddress…..} of the addresses that the multi hop followed?

32. This is really awesome! Thank you!

33. The Testnet ist useless if I can't get any WBNB to test it.

34. Awesome content mate, I have been trying to do the similar things on Solana with Raydium but I can't seem to find any smart contracts(router/factory contracts). If you are up for a challenge it would be awesome if you can make a video on it or even just explaining it in the comment here would be more than enough for me. Cheers.

35. Thank you for the information! If I may, just to confirm, would it be possible to automate a busd to other tokens swap using these methods? It'd be just searching for that specific pair contract and using it instead, correct? Thanks in advance!

36. Hi Leif. can this be used to snipe tokens for project that is about to release? on pancake swap?

37. I will be trying this today!!

38. Hey friend, what are the key process in building a bot

39. Why did you set the WBNBAmountOutMin that way? Does it correspond to setting a slippage equal to .1 WBNB?

40. Hey can you make a tutorial on understanding this tutorial? TIA

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