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exports.getScreenShot = async (req, res) => { | |
const { address } = req.query; | |
// web address you want to screenshot , Default is medium.com | |
const webAddress = `https://${( address || 'medium')}.com`; | |
try { | |
const browser = await puppeteer.launch(); | |
const page = await browser.newPage(); | |
await page.goto(webAddress); | |
await page.screenshot({ path: `./assets/snapshot.png` }); | |
await browser.close(); |
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const code =fs.readFileSync('./contracts/StoreHash.sol').toString(); | |
const solc = require('solc'); | |
const compiledCode = solc.compile(code); | |
const abi =JSON.parse(compiledCode.contracts[':SaveAddress'].interface); | |
const SavingContract = new web3.eth.Contract(abi, '0xb1caf625d9d29421dfd8dae4a7a9083b4175f80a'); | |
// where 0xb1caf625d9d29421dfd8dae4a7a9083b4175f80a is the ethereum address |
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upload = async () => { | |
this.setState({ | |
loading: true | |
}); | |
if (!this.state.uploadStatus) { | |
this.setState({ loading: null }) | |
return alert('Image yet to be uploaded') | |
} | |
if (this.state.label === '') { | |
this.setState({ loading: null }) |
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selectImage = async () => { | |
ImagePicker.showImagePicker(options, async (response) => { | |
if (response.didCancel) { | |
this.setState({ error: 'Image upload failed', loading: null }); | |
} else if (response.error) { | |
this.setState({ error: 'Image upload failed', loading: null }); | |
} else if (response.customButton) { | |
this.setState({ error: 'Image upload failed', loading: null }); |
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exports.create = async (req, res) => { | |
try { | |
const data = { | |
label: req.body.label, | |
ipfsHash: req.data.ipfsHash, | |
ipfsAddress: `https://gateway.ipfs.io/ipfs/${req.data.ipfsHash}`, | |
transactionHash: req.data.ipfsHash, | |
blockHash: req.data.blockHash, | |
}; | |
const resp = await Image.create(data); |
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exports.postData = async (req, res, next) => { | |
try { | |
const { hash } = req.data[0]; | |
const accounts = await web3.eth.getAccounts(); | |
const resp = await SavingContract.methods.saveHash(hash) | |
.send({ | |
from: accounts[0], | |
}); | |
const data = Object.assign({ ipfsHash: hash }, resp); |
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exports.uploadFile = async (req, res, next) => { | |
if (!req.file) { | |
return res.status(422).json({ | |
error: 'File needs to be provided.', | |
}); | |
} | |
const mime = req.file.mimetype; | |
if (mime.split('/')[0] !== 'image') { | |
fs.unlink(req.file.path); |
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componentDidMount() { | |
const config = { | |
method: 'GET', | |
headers: { | |
Accept: 'application/json' | |
}, | |
}; | |
fetch('http://10.0.2.2:5000/images', config) | |
.then((resp) => resp.json()) | |
.then((res) => { |
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pragma solidity ^0.4.0; | |
contract SaveAddress { | |
string ipfsHash; | |
function saveHash(string x) public { | |
ipfsHash = x; | |
} | |
function getHash( string y) public view returns ( string x) { | |
return ipfsHash; |
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//orders the item in an array of object by their ranking in ascending order | |
function sort(data) { | |
return data.sort((a, b) => { | |
return a.ranking - b.ranking; | |
}); | |
}; | |
//find the average ranking present in an array of object; | |
function average(data) { | |
return ( | |
data.reduce((prev, curr) => { |