10分ではじめるpuppeteer

Terminal

brew install nodebrew

$ echo 'export PATH=$HOME/.nodebrew/current/bin:$PATH' >> ~/.bash_profile
$

$ mkdir -p ~/.nodebrew/src
$ cd ~


$ nodebrew install-binary latest
Fetching: https://nodejs.org/dist/v12.10.0/node-v12.10.0-darwin-x64.tar.gz
######################################################################## 100.0%
Installed successfully

$ nodebrew use v12.10.0
use v12.10.0

$ node -v
v12.9.0

$ npm install --save puppeteer

> puppeteer@1.20.0 install /Users/%user%/node_modules/puppeteer
> node install.js

Downloading Chromium r686378 - 110.2 Mb [====================] 100% 0.0s 
Chromium downloaded to /Users/%user%/node_modules/puppeteer/.local-chromium/mac-686378
npm WARN saveError ENOENT: no such file or directory, open '/Users/%user%/package.json'
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN enoent ENOENT: no such file or directory, open '/Users/%user%/package.json'
npm WARN %user% No description
npm WARN %user% No repository field.
npm WARN %user% No README data
npm WARN %user% No license field.

+ puppeteer@1.20.0
added 43 packages from 22 contributors and audited 50 packages in 11.012s
found 0 vulnerabilities


saveError ENOENT: no such file or directory, open '/Users/%user%/package.json'
package.jsonが存在していない


$ npm init --yes
Wrote to /Users/%user%/package.json:

{
  "name": "%user%",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "dependencies": {
    "puppeteer": "^1.20.0"
  },
  "devDependencies": {},
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}




   ╭────────────────────────────────────────────────────────────────╮
   │                                                                │
   │      New minor version of npm available! 6.10.3 → 6.11.3       │
   │   Changelog: https://github.com/npm/cli/releases/tag/v6.11.3   │
   │               Run npm install -g npm to update!                │
   │                                                                │
   ╰────────────────────────────────────────────────────────────────╯

$ ls package.json
package.json


$ npm install --save puppeteer

> puppeteer@1.20.0 install /Users/%user%/node_modules/puppeteer
> node install.js

Downloading Chromium r686378 - 110.2 Mb [====================] 100% 0.0s 
Chromium downloaded to /Users/%user%/node_modules/puppeteer/.local-chromium/mac-686378
npm WARN %user%@1.0.0 No description
npm WARN %user%@1.0.0 No repository field.

+ puppeteer@1.20.0
updated 1 package and audited 50 packages in 9.048s
found 0 vulnerabilities

$ cd puppeteer/
$ node scraping_google_co_jp.js 
$

正常に動作！

• 参考になった技術まとめ
  • puppeteerを体験してみた