7 Bids

Bid Avg $317 USD

Budget $5 - 75 USD

Time expired

Project Description

  United States

Employer - 0 Reviews
Eric Madison:
there is a whitelisting mapping(address => bool) public whitelist;
uint256 public investorsLength;
in Ownable contract

i want to insert addresses of whitelisted addresses so only this addresses can pay

but when i insert if(whitelist[msg.sender] == true) or require(whitelisting[msg.sender]); transaction always fail

To payable function

also i need if harcap is not reached in presale or in any stage of mainsale to transfer difference between hardcap an invested ammount to next stage

so if harcap in presale is lets say 10 eth and we get 8 eth in presale

then 2 eth must be added to next stage hardcap

and please check how would be possible to manually transfer / mint tokens to specific address - that is because we will have to make manual tranasctions for those who invested in presale. Ther is already directmint function but i don’t know how to use it



  United States


Freelancer - 9 Reviews


"I am an expert in smart contracts. I can get this done with no hassle. Let's discuss further on chat. Thanks"

$300 USD


  United Kingdom


Freelancer - 16 Reviews


"ok I'll help you.

please reply if you ever need my services.

Best regards :)"

$500 USD


  United States


Freelancer - 11 Reviews


"I have done several jobs on this previously. Can we chat so I kickstart this asap and give you a sharp and accurate result."

$400 USD


  United States


Freelancer - 34 Reviews


"I can get it done perfectly well.... 100% professionalism. Drop me a line in the chat lets discuss it . Feel free to look into my feedbacks"

$400 USD




Freelancer - 0 Reviews

"I am a serious bidder with similar technical skills and experience i have checked the details & have already worked on a similar project before and can deliver this as u have mentioned

We are a team of professionals having great expertise in web applications development mainly on PHP, (Joomla, Wordpress, Codeigniter, Cake PHP), .NET, Asp.NET, Vb.NET, HTML 5 etc.& mobile apps"

$111 USD




Freelancer - 0 Reviews

""Hi, Hope you are doing well! Thanks for sharing your project requirement with us. It will be our great pleasure to work on your project. I have checked your requirement, yes we can do it, because we already work on similar requirement in past. We have right skills to work on this assignment. . We will complete the work as per requirement Also my team working on same project"We have read out every thing about your project . my skype is techsolutions3"

$111 USD


  United States


Freelancer - 0 Reviews

There are no secrets to success. It is the result of preparation, hard work, and learning from failure or experience, i am an expert cryptocurrency website develop and also i am good in cloning of website or App with ico web development, I had gone through your request carefully and here is my area of specialization, i will be glad working together with you and surely outstanding result is guaranteed, if you really seeking for excellent result don't hold back to inbox me now


$400 USD

Type of Work

Cryptocurrency (creating / cloning / issues et.)