10 Bids

Bid Avg $488 USD

Budget $75 - 500 USD

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Project Description



phpprogrammer29
  Russia

Offline
Employer - 4 Reviews
100%
Create Library in PHP to enable multisig orders on multi-vendor e-shop

(pd: You can add the multisig functions to this library: https://github.com/aceat64/EasyBitcoin-PHP or you can create another independent library, but you must have in mind that all rpc command will be sent through the previous library)

The library must allow create multisig transactions between the users:
Buyer (Only send Bitcoin and should receive it back in case of a dispute turned on his favour.
Seller (Will receive the bitcoins only in case if the transaction finalize without any problem)
The Platform (Its the one which allows the exchange between the user and buyer gettings because of this a comission of every transaction)

This is the transaction process for the purchase of a product explained with more details :

1. Buyer choose a product and click on buy
2. Buyer then will see a Bitcoin address where to pay for the product

This Bitcoin Address must have the following features:
- Once this address has receive the bitcoins and the order be finalized successfully, the bitcoin have to be automatically moved to the seller's bitcoin address taking a comission for the sale (Ie. 2%) The comission must be send to a bitcoin address specified by the administrator)
(In case this feature can't be implemented: Then, a non-multisig address will be submitted for the buyer to pay , once the address receive the bitcoins, the platform's comission will be send to an independent address and a multisig address will be created with the left amount of the transaction's money, which will only send the bitcoin to the seller (in case the transaction finalize successfully) or to the buyer (in case of a dispute turned out buyer favor)

3. The multisig address can be 2-2 (Platform key and seller) or 2-3 (Platform, Seller, Buyer)
4. The platform's administrator must be able of come into the transaction, the administrator will be able to decide the percentage that wants to back to the buyer or seller (ie. 10% to buyer 90% to seller, 100% buyer, 0% seller or whatever the administrator wants to)
5. The buyers will be able to have a refund address specified on the platform so if an order is cancelled the bitcoins will be refunded to that address, in case the user has not specified a refund address, the bitcoins will be send to an address configurated by the platform, so that the buyer can withdrawn the bitcoins from his account (In this case nothing should be done, the platform's administration would be in change of update the user's funds on the platform to show the amount which belongs to the user)
6. For default, the timelocked transactions will be of 45 days, but the function in charge of stablish the timelock should be able to receive through parameter the time which wants to stablish as timelock
7. The platform will show the redeem scripts so that the buyer/seller be able to sign the transactions and the platform will be in charge of sign and make the broadcast of those transactions
8. The purchasing process and the moment of receive the bitcoins should be the most easily possible, both for the seller than for the buyer
9. The best in the moment of generate the redeem scripts is if it is possible of generate a single redeem scripts for all the orders the seller has independently of the amount of orders he has. If this is not possible even for tech reason or perfomance reasons, then, get together the maximum amount possible of orders in every redeem script to avoid that the seller has to sign every single order he has



Bids

DavidL

  United States

Offline

Freelancer - 83 Reviews

98%

"I'll be ready to start by the end of the week."

$500 USD



Jennysmile

  United States

Online

Freelancer - 5 Reviews

88%

"I understand perfectly your requirements and I ensure you that the library will be created and execute all the functions needed by you"

$550 USD



Bhagwant Singh

  India

Offline

Freelancer - 1 Review

84%

"Hi,

I have checked your complete requirements and yes I can do this work. It's an easy job for me because we have already done this kind work in our past projects.

Please tell me what is the good time to talk to you so we can discuss the project and start it immediately.

Our company estd in 2009. We are 44 in house team members, in which 22 php developers (work in html5, css3, php, codeiginiter, magento, wordpress, woocommerce, plugins, plugins customization, magento extensions, and make particular module for specific area), 8 website designers (work in photoshop, coreldraw, InDesign, Ilustrator, HTML5, PSD to HTML, JS, Ajax etc), rest are SEO digital marketing team.

Please go through our portfolio and some more work that we recently delivered in last months
http://aniwebdesigns.com/our-portfolio

We are into graphics designing and Digital Marketing as well.


Thanks


Regards,
Bhagwant Singh"

$500 USD



orchidkart

  United States

Offline

Freelancer - 5 Reviews

82%

"I have reviewed your work requirements and I can definitely create a library for a multivendor shop as per your requirements.
I have already work on the similar type of projects.
Please have a look at my portfolio: https://goo.gl/8AGQnP and do let me know your feedback. In addition to the aforesaid work, I also provide the Web and Mobile Design and Development, Graphics Design, Virtual Assistant Services at affordable rates."

$500 USD



Web Developers

  United States

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Freelancer - 0 Reviews


"Hello
We will have it done and delivered to you on time"

$380 USD



designer52

  India

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Freelancer - 0 Reviews


"professional is here and do your work perfectly according to your need and also in your budget . pls send me some lines so I can start your work and completely it as fast as possible"

$450 USD



Brainviretech

  Singapore

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Freelancer - 0 Reviews


"Hi, i am a full stack mobile & web dev having similar technical skills & experience & have already worked on a similar project before so can do this Ref : https://www.2basetechnologies.com/portfolio
Great expertise in web applications development mainly on PHP, (Joomla, Wordpress, Codeigniter, Cake PHP), .NET, Asp.NET, Vb.NET, HTML 5 etc.& mobile apps"

$500 USD



xentrictech

  Netherlands

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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"

$500 USD



JOHN lettna

  United States

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Freelancer - 0 Reviews


"will have your work all done to your expectation."

$500 USD



zenly

  United States

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Freelancer - 0 Reviews


"I can port over a similar library I've written within your timeframe. I am a professional developer, and can accomplish this quite easily for you. I'm quite professional and easy to work with."

$500 USD



Type of Work

Websites and software

Skills

cURL
PHP
Bitcoin
bitcoind
Multisig