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I am a DAPP Developer in Korea. I have publish my own token using eosio.token recently. I love to study eos main network system. Now I am trying to learn how swap my token with EOS. So that I was looking for the contract examples or templates swapping any EOS based token with eos or any other token. I am wodering that there are the templates or example from system contract or any other sources I can look into. Thank you.

  • I don't understand your question. What do you mean by "swapping"? What are you trying to achieve? – cmadh Jul 25 '19 at 11:52
  • For example, if I send one TEST token to DAPP, I get one EOS coin. Conversely, if I send one EOS token, I can get one TEST token. To exchange EOS coins with a token that I have made at this constant rate. Is there a contract that meets the conditions I said? – Alan Kim Jul 25 '19 at 12:46
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Tokens are simply numbers stored in tables of the smart contract user that issues them.

You could even create a new "EOS" token if you deploy the eosio.token contract to a user.

There exists no logic to swap from one token to another; but you could write it given you had some price feed that creates a "value" for each token.


If you create a self issued token that gets listed on exchanges and has a value, you could sell it and use the proceeds to purchase EOS or another token, but that isn't really what you are asking .. that's just using a currency exchange with existing markets.

  • I would rather have them dynamically exchange using smart contracts than using the existing market. For example, if I send one TEST token to DAPP, I get one EOS coin. Conversely, if I send one EOS token, I can get one TEST token. To exchange EOS coins with a token that I have made at this constant rate. Is there a contract that meets the conditions I said? – Alan Kim Jul 25 '19 at 13:01

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