dapangmao

var mongodb = require('mongodb');

var uri = 'mongodb://localhost:27017/example';
mongodb.MongoClient.connect(uri, function(error, db) {
  if (error) {
    console.log(error);
    process.exit(1);
  }

  db.collection('sample').insert({ x: 1 }, function(error, result) {

dapangmao

1. curl vs wget

• 以前还真没注意他们的差别

2. Performance & Usage at Instagram

• 答案是educed the maximum number of summary comments.
• 他们真用python吗?

3. 排队论在架构的应用：对服务延迟、稳定性的影响

• timeout从poisson distribution

dapangmao

1. 技术本地化、反欺诈算法、数据分布……你想知道的Uber技术全在这里了

• 分布是王道, 毫无干货

2. Ultimate guide for scraping JavaScript rendered web pages

• PyQt也能用来load JS
• scrapinghub/splash也有方案, 为什么要用Lua?

3. Decorator

• elegant way to implement closure
• if you want to change the input of a function

dapangmao

import matplotlib.pyplot as plt
import numpy as np
import matplotlib
import datetime
import time
import mpld3
import matplotlib.pylab as pylab
pylab.rcParams['figure.figsize'] = 12, 5  # that's default image size for this interactive 

def create_plot():

dapangmao

1. 程序员如何优雅的挣零花钱？

• 难啊
• 有点意思

- 在行 http://www.zaih.com : 这个是果壳旗下的，做得比较早，内容是全行业的，所以上边技术向的反而不多。

- 缘创派 http://q.ycpai.com/h5/lightPartner/expertList : 缘创派的轻合伙栏目，主要面向创业者，适合喜欢感受创业氛围的技术专家们。

- 极牛  http://geekniu.com  : 你可以认为这是一个程序员版本的「在行」，我浏览了下，虽然被约次数比在行要低不少，但专业性比较强，期望他们能尽快的推广开来吧。

dapangmao

1. Dark traffic 是什么

• 或者head, 或者get url

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Context

• To developing the application, we will constantly query the QA database running on the LOCTEST server.
• The queries that are under testing are usually very complicated. The waiting time with the server ranges from seconds to 20 minutes or even longer.
• The LOGTEST server may be down or gets extremely slower occasionally .
• The database qa1_loctest_inventory is mostly used. The article here introduces how to copy the invertory database to a local Mac environment

The procedures

1. Dump file from LOCTEST

dapangmao

set nocompatible              " required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()

Plugin 'gmarik/Vundle.vim'
Plugin 'tmhedberg/SimpylFold'
Plugin 'vim-scripts/indentpython.vim'

dapangmao

-- https://postgrest.com/en/v0.4/auth.html#sql-user-management


create schema if not exists basic_auth;

create table if not exists
basic_auth.users (
  email    text primary key check ( email ~* '^.+@.+\..+$' ),
  pass     text not null check (length(pass) < 512),
  role     name not null check (length(role) < 512)

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CREATE OR REPLACE FUNCTION public.login(email text, pass text)
 RETURNS basic_auth.jwt_token
 LANGUAGE plpgsql
AS $function$
declare
  _role name;
  result basic_auth.jwt_token;
begin
  -- check email and password
  select basic_auth.user_role(email, pass) into _role;