Bounty #5 - Bank Card Payment Validator

[sulliwane]

What you will learn

• Feed API data into your Ethereum smart contract using a decentralized oracle.

Prerequisite

• You must know at least one programming language
• Basic knowledge of how Ethereum and smart contracts work

App requirements

• Use case: Bank Card Payment Validator
• Data source: a bank card payment processor (Dwolla API ?)
• Input: a payment ID
• Output: payment amount & payer ID

What I need to do?

1. Apply for the related Gitcoin issue here
2. Follow this step by step tutorial: How To Build a Decentralized Oracle on Ethereum
3. Submit a pull request with your code
4. Get your reward!

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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This issue now has a funding of 500.0 RLC (98.4 USD @ $0.2/RLC) attached to it as part of the iExecBlockchainComputing fund.

• If you would like to work on this issue you can 'start work' on the Gitcoin Issue Details page.
• Want to chip in? Add your own contribution here.
• Questions? Checkout Gitcoin Help or the Gitcoin Slack
• $144,161.53 more funded OSS Work available on the Gitcoin Issue Explorer

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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Work has been started.

These users each claimed they can complete the work by 267 years from now.
Please review their action plans below:

1) jesus989 has been approved to start work.

1. read the tutorial : Decentralized Oracle on Ethererum
2. understand Dwalla API
3. build api entry point (take payment ID) / add validation proper ID
4. call DWalla API (handle successful and non successful calls). I might need to use iExec here to to fetch any data (would have to research and understand)
5. Use iExec Decentralized cloud push the result on-chain
6. return json output payment amount and payer ID
   2) thomasvangurp has been approved to start work.

1. find suitable API (could be Dwalla), build docker container
   3) emmaodia has been approved to start work.

Follow the step by step tutorial as listed and submit a pull request with my code.
4) oolayemi has been approved to start work.

Using JavaScript, dockerfile, python

Learn more on the Gitcoin Issue Details page.

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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Work for 500.0 RLC (91.9 USD @ $0.18/RLC) has been submitted by:

1. @emmaodia
2. @thomasvangurp

@sulliwane please take a look at the submitted work:

• PR by @thomasvangurp
• PR by @emmaodia

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• Learn more on the Gitcoin Issue Details page
• Want to chip in? Add your own contribution here.
• Questions? Checkout Gitcoin Help or the Gitcoin Slack
• $123,657.08 more funded OSS Work available on the Gitcoin Issue Explorer

[sulliwane]

@thomasvangurp @jesus989

Hi all!
Are you still working on this bounty?
Please submit your PR if you are!
Thanks

[emmaodia]

Hi @sulliwane Kindly review my PR and give feedback. Thanks.

[sulliwane]

Hi @emmaodia, we are on it no worries :) Thanks for you contribution

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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The funding of 500.0 RLC (91.9 USD @ $0.18/RLC) attached to this issue has been approved & issued to @emmaodia.

• Learn more on the Gitcoin Issue Details page
• Questions? Checkout Gitcoin Help or the Gitcoin Slack
• $127,217.36 more funded OSS Work available on the Gitcoin Issue Explorer

[sulliwane]

Congratulations to @emmaodia for your great work! An article will be published tomorrow on the iExec Medium to share the good news :)