Smart Contract Development (ERC721) & API & Development of a Native Real Estate Dapp (Decentralized App)

Closed Posted 5 years ago Paid on delivery
Closed Paid on delivery

We need a smart contract developed with the ERC721 token. An API or SDK will need to be developed as well to communicate with the smart contract to develop our Real Estate Dapp.

See below for the Dapp functionality for our MVP. This could be a long term engagement for our full Dapp, if the MVP developed is up to our standard.

*1.* Information Architecture - create a database that houses the UUIDs & Passwords and any other verifications needed to link to their Chelle Wallet where the ERC-20 tokens that were purchased from our ICO cabinet (for MVP). The database must be able to migrate new columns and/or rows as we scale the app up in Phase 2 where users will be able to convert fiat currencies and other cryptocurrencies like Bitcoin. The database must also keep information about properties that we have purchased (total amount that can be invested), and keep information on how much was invested by each user, and a schema developed per property that holds information specific to said property (sq footage, rooms, floors, pets allowed, security, location etc),. Properties will be added consistently, and the information architecture must be easily updated.

*2.* We need further information/consultation, but another smart contract might need to be developed that handles the logic associated with the creation of the ERC 721 tokens once a user invests in one of our property listings (for MVP). This must be able to scale up in Phase 2 of our app where users will receive monthly returns (dividends) based off the allotted percentage they have invested in each property.

*3.* The back-end logic must communicate with the smart contract(s). Display a users Total Token Balance, how many Invested Tokens and in which specific properties, and tokens left for investing. This must be able to scale for buying/selling properties as well as receive monthly dividends in Phase 2. This might be done with an API to crypto wallet agency.

*4.* Each listed property must have a total amount of investment opportunity. This can be shown with a progress bar, and must pull information from the database on how much has been invested by all users on each property listed.

*5.* Users must be able to scroll through our property listings, where they can click on a specific property that leads to another page. This page will contain more details regarding the property: sq footage, rooms, floors, pets allowed, security, location (google maps API), brief description etc.

*6.* If a user chooses to allocate their ERC 20 tokens, the back-end must communicate with the smart contract to issue ERC 721 to users which will be represented as an investment allocation on said property. This will update the users Chelle Wallet, and the users property portfolio

*7.* A portfolio page must be created that shows all the properties a user as invested in and how many tokens were allocated in each.

*8.* A wallet tab that shows users their Chelle token balance and Chelle Token value. The portfolio page can be apart of this.

*Strategic Planning to Oversee:*

- User's story

- How this person/agency will define the infrastructure requirements and scaling techniques

- how this person/agency defines smart contract integration logic with ethereum blockchain

- sending transactions to Blockchain/mainnet/sidechain

- tracking transactions/balance changes, block changes etc

- back-end integration with smart contract.

*Back-end:* Nodejs/Python/Ruby on Rails?

*Front-end* must be a native app for both IOS and andriod (Reactjs).

Graphic Design MySQL PHP Software Architecture Website Design

Project ID: #18219899

About the project

48 proposals Remote project Active 5 years ago

48 freelancers are bidding on average $4034 for this job

codeguru786

Hi, I've read the project description and definitely can develop the web/mobile ERC20 app. I'll provide you with the highly-skilled & dedicated React.js, Java, PHP, JavaScript, front & back-end app development & web se More

$12000 USD in 30 days
(709 Reviews)
9.5
leadconcept

Hi there, Your project recruiter "Loreley" invited to place a bid on your project. I have read initial high level requirements & understood the scope of this project but before finalising this project, may I requ More

$2647 USD in 30 days
(135 Reviews)
9.3
gigadevca

GigaDevCA has expert blockchain developers and we would like to discuss this project with you. Please contact us.

$10000 USD in 30 days
(27 Reviews)
8.2
concettolabs

Hello, I have gone through all the requirement written into the description and seems like our experienced developers can surely achieve it. Lets have a quick discussion Regards, Miloni

$3020 USD in 30 days
(68 Reviews)
7.5
hitech10

Smart Contract Development (ERC721) & API & Development of a Native Real Estate Dapp (Decentralized App) -------------------------------------------------- Having the similar kind of experience I am interested in wor More

$2500 USD in 30 days
(31 Reviews)
7.4
codeman01

Did similar work before, need discussion I have made many smart contracts deployed them to main net and connected them to websites using APIs developed by me using web3js. Please ping me over chat for more discussi More

$3000 USD in 35 days
(48 Reviews)
6.3
papon13

I could develop smart contract.

$3176 USD in 20 days
(44 Reviews)
5.6
deuesexmachina

Hello, I am a MERN stack DApp developer and am interested in working on this project. I would propose taking us MongoDB as the database and React as the frontend. Nodejs would be sufficient to run the backend or AP More

$6000 USD in 45 days
(29 Reviews)
5.5
GolpikInc

Hi, We can develop the native app for both IOS and Android end-to-end Real Estate Dapp using custom frameworks with ERC-721 standard tests, code coverage tools to write an optimal and secure code for your applicatio More

$3000 USD in 30 days
(13 Reviews)
6.3
ArStudioz

Hello, Thank you for inviting me for the project. I am bidding here for the Smart Contract Module Development and adding the milestones we discussed. Thanks and regards, Ezaj

$9000 USD in 85 days
(5 Reviews)
6.5
superbpartner

hello,dear. I have read all your requirements for 'Smart Contract Development (ERC721) & API & Development of a Native Real Estate Dapp (Decentralized App)' and I fully understood it. I am confident and I am sure that More

$2500 USD in 13 days
(14 Reviews)
5.4
Cmonosoft

Hi, No advance needed. Please read the proposal once till end. Doesn't matter that you give us chance or not to work with you. If you give us a chance to work, we assure you to make you happy. We are ready to More

$5000 USD in 60 days
(11 Reviews)
5.3
wuyong2020

Hello I am Full-Stack expert with rich experiences with Smart Contract, Blockchain, This project is very interesting for me and perfect fit with my skills. Waiting for your response to work together. Best Regards

$2647 USD in 30 days
(9 Reviews)
5.2
naishodayo

Hi,dear! I am quite interested in your project - 'Smart Contract Development (ERC721) & API & Development of a Native Real Estate Dapp (Decentralized App)'. :) I am a skillful software developer who has rich experience More

$2500 USD in 13 days
(5 Reviews)
4.9
TechnoDerivation

Hello sir Thanks for posting job...!! We have vast experience on block chain development like token and smart contract development using solidity, Coin Development, ICO Development, exchange and trading platform More

$2500 USD in 30 days
(6 Reviews)
4.2