Solidity contract -- 2

$30-250 USD

Closed

Posted

over 5 years ago

$30-250 USD

Paid on delivery

I need you to build a solidity contract with the following requirement : Write the contract(s) to manage the inventory of a book library. List all assumptions. Code without a corresponding unit test will not be considered. Requirements 1. The library has an owner and librarians. 2. The owner may add or remove librarians. 3. Only librarians may check books out to an address. 4. A book owner may trade the book to anyone else. 5. Anyone may check in a book. 6. Librarians may add/remove books to the library. 7. Track the history of the book's ownership. 8. Record damage & repair for a book. 9. View book status/history. 10. Log relevant events. Bonus ● Web3 front end. ● Token/Fund transfer. Use of the following tools/resources are recommended: ● Truffle ● Mocha/Chai ● OpenZeppelin

Blockchain

Ethereum

Project ID: 17500354

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7 proposals

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Active 6 yrs ago

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7 freelancers are bidding on average $672 USD for this job

@BigCityInstitute

From cryptocurrency Expert! Dear client! I have a rich experience in this field! Especially I’m very good in Ethereum smart contract. Seems to be an interesting work and good opportunity to show my skills to work with you in future as well. Hope to have a long-term work relationship with you. I'm a professional developer with over 10 years. so that I can bring your idea to live and you can reach the goal absolutely with me. I will be happy to discuss with you via chat. Best Regards!

$2,000 USD in 3 days

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@Sekoucox

how are you,sir? I am a ultimate developer who has rich experience in this field. If you contact me, you and i will all be happy. Thank you for your reply in advance. Solidity contract -- 2 Blockchain, Ethereum,

$155 USD in 2 days

0.0

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@Devizz

Hello, An agreement should seal the understanding between two gatherings. This is to prevent a change in contract terms and stipulated conditions thus to demand that it be part of an agreement draw up legal agreement has to be met for that agreement to be completed. I will critically take time to examine the sort of service, the legal implications and would seek to present a contract term favorable to my client first. Regards

$100 USD in 3 days