First of all, thank the entire community for all the facilities with the standards they share. Thank you very much for saving us so much time. I have successfully implemented the Crowdsale.sol standard for a token sale. But I would like to use it without using the buytokens function. The idea is th…

I have made a purchase contract with these characteristics, inheriting from Crowdsale and overwriting the buytokens method. /SPDX-License-Identifier: Unlicense pragma solidity ^0.6.12; import "./Crowdsale.sol"; import "./Ownable.sol"; //import "@openzeppelin/contracts/crowdsale/Crowdsale.sol";…

[image] Cainuriel: But I'm still waiting for someone to explain to me why the receive function doesn't work. receive function? Do you mean the function buyTokens()

No @Skyge , I mean that it works that: receive () external payable { buyTokens(msg.sender); } is within the crowdsale contract:.

What is the source code of the Crowdsale contract, I did not find a suitable contract in the OpenZeppelin repo, in the branch named release-v2.5.0, the compiler version of the contract is 0.5.x

[image] Skyge: ¿Cuál es el código fuente del Crowdsale contrato? No encontré un contrato adecuado en el repositorio de OpenZeppelin, en la rama nombrada release-v2.5.0 , la versión del compilador del contrato es 0.5.x Right now I share it with you //SPDX-License-Identifier: Unlicense pragma…

Really a little difficult to get your full code to have a test! I have deployed contracts like followings and had a try, all worked well: Crowdsale token Crowdsale contract Transfer crowdsale token to crowdsale contract Use receive function to buy crowdsale token Rate = 200000, so when use 20 * …

And I think you can have a look at this tutorial to learn: Simple ERC20 Crowdsale - General / Guides and Tutorials - OpenZeppelin Community

[image] Skyge: Really a little difficult to get your full code to have a test! I have deployed contracts like followings and had a try, all worked well: First of all, thank you for your effort in trying to help me. But the contract works perfectly for me. Except for the aforementioned funct…

So is the current problem you can not buy token by calling receive()?

[image] Skyge: Rate = 200000, so when use 20 * 10^9 wei to buy crowdsale token, the amount I can get is: 20 * 10^9 * rate = 4*10**15=0.004DAI The rate calculates the amount of tokens that will be received for each ETH or BNB. In this function from the Standard contract Crowdsale: */ fun…

Buy direct with Crowdsale without using the buyTokens function

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Skyge July 26, 2021, 4:02pm 11

And I think you can have a look at this tutorial to learn:

Simple ERC20 Crowdsale - General / Guides and Tutorials - OpenZeppelin Community

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Buy direct with Crowdsale without using the buyTokens function

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