Bounty #7 - Ultimate Package Tracker

sulliwane commented 4 years ago

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: Ultimate Package Tracker
Data source: La Poste API (or another tracking service like UPS)
Input: tracking ID
Output: simple delivery status (or 0: not delivered, 1: delivered).

What I need to do?

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

gitcoinbot commented 4 years ago

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

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

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
- $144,358.33 more funded OSS Work available on the Gitcoin Issue Explorer

gitcoinbot commented 4 years ago

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

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) lucasfersilva has been approved to start work.

Hello, I`m very interested in this job, I think I could learn a lot of things and I would be very useful for you 2) frippo40 has been approved to start work.

Follow Tutorial, learn some new skills 3) andy92pac has been approved to start work.

Follow the tutorial and code the DOracle :)

Learn more on the Gitcoin Issue Details page.

Frippo40 commented 4 years ago

Hello!

I published what I have completed on kovan but ran into a few problems:

Here is the app: https://explorer.iex.ec/kovan/app/0xE944Eb8acd091232791C96B677160C7943065bC3

1) I filled an order to test and the results were "standard_init_linux.go:211: exec user process caused "exec format error""

I don't know how to debug that...

Also 2) the UPS API requires a username and password, so I parameterized those but that doesn't seem to be secure so I'm not sure how to proceed with that.

sulliwane commented 4 years ago

Hi @Frippo40, thanks for the update. Very sorry for the late reply, I was busy attending Devcon5.

It's great to see that you deployed your application on iExec, but did you submit a PR with your code?

If not, please do so we can review it! Thanks

gitcoinbot commented 4 years ago

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

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

@sulliwane please take a look at the submitted work:

(Link Not Provided) by @Frippo40
PR by @Andy92Pac

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
$127,309.26 more funded OSS Work available on the Gitcoin Issue Explorer

Frippo40 commented 4 years ago

@sulliwane Oh sorry! I've just submitted a PR: https://github.com/iExecBlockchainComputing/iexec-apps/pull/36

ljtron commented 4 years ago

I have a question how do you call the function named “_iexecDoracleGetVerifiedResult” on your doracle smart contract, so it will check the result stored on the iExec’s smart contract from the step by step guide

Andy92Pac commented 4 years ago

I have a question how do you call the function named “_iexecDoracleGetVerifiedResult” on your doracle smart contract, so it will check the result stored on the iExec’s smart contract from the step by step guide

Look at how they did it in their price feed doracle example https://github.com/iExecBlockchainComputing/price-feed-doracle/blob/b7cd4ef5e286189f47a6959eceef17ecd0928934/contracts/PriceOracle.sol#L57

ljtron commented 4 years ago

what is the doracle call id

gitcoinbot commented 4 years ago

⚡️ A tip worth 500.00000 RLC (91.9 USD @ $0.18/RLC) has been granted to @frippo40 for this issue from @sulliwane. ⚡️

Nice work @frippo40! To redeem your tip, login to Gitcoin at https://gitcoin.co/explorer and select 'Claim Tip' from dropdown menu in the top right, or check your email for a link to the tip redemption page.

$127125.46 in Funded OSS Work Available at: https://gitcoin.co/explorer
Incentivize contributions to your repo: Send a Tip or Fund a PR
No Email? Get help on the Gitcoin Slack

gitcoinbot commented 4 years ago

⚡️ A tip worth 500.00000 RLC (91.9 USD @ $0.18/RLC) has been granted to @andy92pac for this issue from @sulliwane. ⚡️

Nice work @andy92pac! Your tip has automatically been deposited in the ETH address we have on file.

$127125.46 in Funded OSS Work Available at: https://gitcoin.co/explorer
Incentivize contributions to your repo: Send a Tip or Fund a PR
No Email? Get help on the Gitcoin Slack

gitcoinbot commented 4 years ago

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

This Bounty has been completed.

Additional Tips for this Bounty:

sulliwane tipped 500.0000 RLC worth 91.9 USD to andy92pac.
sulliwane tipped 500.0000 RLC worth 91.9 USD to frippo40.

Learn more on the Gitcoin Issue Details page
Questions? Checkout Gitcoin Help or the Gitcoin Slack
$127,033.56 more funded OSS Work available on the Gitcoin Issue Explorer

sulliwane commented 4 years ago

Congratulations to @Frippo40 and @Andy92Pac for your great work! An article will be published tomorrow on the iExec Medium to share the good news :)

iExecBlockchainComputing / iexec-apps