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# ---- Base Node ----
FROM mhart/alpine-node:10 AS base
# install node
RUN apk add --no-cache nodejs-current
# set working directory
WORKDIR /root/nextApp
# copy project file
COPY package.json  .
COPY tsconfig.server.json  .
COPY .npmrc .

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import { ApolloProvider } from '@apollo/react-hooks'
import App from 'next/app'
import React from 'react'
import withApolloClient from './lib/with-apollo-client'

class MyApp extends App {
  render () {
    const {Component, pageProps, apolloClient}: any = this.props
    return(
      <ApolloProvider client={apolloClient}>

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Helm cheatsheet

• Helm cheatsheet
  • Get started
  • Struture
  • General Usage
  • Template
  • Hooks

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import io.opentracing.Scope;
import io.opentracing.ScopeManager;
import io.opentracing.Span;
import org.slf4j.MDC;
import org.springframework.lang.Nullable;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

public class DiagnosticContextScopeManager implements ScopeManager {

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import io.opentracing.Scope;
import io.opentracing.ScopeManager;
import io.opentracing.Span;
import org.slf4j.MDC;
import org.springframework.lang.Nullable;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

public class DiagnosticContextScopeManager implements ScopeManager {

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import { useEffect, useState } from 'react'
import { API, graphqlOperation } from 'aws-amplify'

const ListTalks = `
  query {
    listTalks {
      items {
        name
        description
        presenter {

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Kafka Cheat Sheet

Display Topic Information

$ kafka-topics.sh --describe --zookeeper localhost:2181 --topic beacon
Topic:beacon	PartitionCount:6	ReplicationFactor:1	Configs:
	Topic: beacon	Partition: 0	Leader: 1	Replicas: 1	Isr: 1
	Topic: beacon	Partition: 1	Leader: 1	Replicas: 1	Isr: 1

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import React, { Component } from 'react';
import { graphql } from 'react-apollo';
import { gql } from 'graphql-tools';

const QUERY = gql`
  query MatchesByDate($date: Int) {
    matches(date: $date) {
      id
      minute
      period

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/**
 * server/dataSources/Auth.js
 * Auth implementation, it's not really a dataSource so it doesn't need to be here
 */
const { authenticate, createJwt } = require('../lib/passport');
const { ON_HTTPS } = require('../configs');

const ONE_MINUTE = 1000 * 60;
const ONE_DAY = ONE_MINUTE * 60 * 24;
const ONE_MONTH = ONE_DAY * 30;

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// filename: components/CustomComponent/index.test.js
import React from 'react';

// Don't use component actual name, in this way 
// when you rename the component, no test change is required
import Component from './index'; 

describe(Component.name, () => {
   // Use SUD (system under test) component for the tests
   // in this way each test contains only the props, specific to this test