romain130492

When I started my web3 journey I got a freelance contract: Add web3 features to an existing app and reward the users with our token.

The point of rewarding the community was:

• To motivate the community to do something to earn a token.
• The brand wanted to have its own token to improve branding.
• Rewarding the user with tokens is becoming more and more common these days.

Our users should get 5 tokens when completing their profile (bio, curriculum, social media links, etc.).

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var Web3 = require("web3");
// TO make a transaction from a wallet address to a smart contract address
// The smart contract has a function called : `set()`, which set a value to the data for the variable called : `data`


const init2 = async () => {
  try {
    const provider = new Web3.providers.HttpProvider(endPoint); // https://ropsten.infura.io/v3/ROPSTEN_API_KEY
    web3 = new Web3(provider);
    web3.eth.handleRevert = true;

romain130492

/**
* We login the user to our mini-program
* We get the user Info (the user info don't contain the unionId)
* We make a request to our back-end to request the unionId.
* * For security reason wechat doesn't allow us to make that request on the front-end : https://api.weixin.qq.com/sns/jscode2session?appid=${process.env.APP_ID}&secret=${process.env.APP_SECRET}&js_code=${js_code} 
* * To make that request we need(see at the bottom) : {secret,appId, js_code(login code)}

/** Client-Side **/
import http from '../utils/http.js'

romain130492

Scraping with Selenium/ Python

Wait to get an element on the page

    driver = webdriver.Firefox(firefox_options=options,
 executable_path=geckodriver)

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Programmatic Navigation

To go back to the last page visited

this.$route(-1)

<a @click="$router.go(-1)">back</a>

romain130492

Ml : sklearn

Prediction

from sklearn import tree


#height, weight, shoe size
X= [[181,80,44], [177,70,43],[160,60,38],[154,754,437],[166,65,40],

romain130492

• An async Post request (Multi Form Data) with NodeJs

    let formData = new FormData();
    formData.append('input_file', fs.createReadStream('your file path'));
    formData.append('parameter_1', 'your parameter');
    const getData = async url => {
        try {
            const res = await axios.post(url, formData, {

romain130492

Jest

inject data with provide

import UserTest from './seed/user-test'
import { createLocalVue, shallowMount, mount } from '@vue/test-utils'
import Component from '../dist'
const user = UserTest.user;
const userToken = UserTest.userToken;

romain130492

• Import Modules

import dayjs from 'dayjs'
var utc = require('dayjs/plugin/utc')
dayjs.extend(utc)

• Date and input User

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computed_property() {
      this.variable = new Date(this.currentUtc)
      return this.variable
    }
   const variable2 = this.computed_property()

OR more simply

computed_property() {