gatsby-contentful-starter：npm run setupのgetaddrinfo ENOTFOUNDの解消

前提・実現したいこと

◆使用ツール・言語
Gatsby.js
Contentful

◆前提
当方、プログラミング初心者です。
・gatsby new gatsby-contentful-starter実行済み
・Contentfulにアカウント作成済み

◆実現したいこと
gatsby-contentful-starterでローカルサーバー起動(develop)、ブラウザからのアクセス確認

発生している問題・エラーメッセージ

> node ./bin/setup.js
(略)
 √ Validating content-file
 √ Initialize client (1s)
 × Checking if destination space already has any content and retrieving it (20s)
   → Error: getaddrinfo ENOTFOUND api.contentful.com
   Apply transformations to source data
   Push content to destination space


The following 1 errors and 5 warnings occurred:

08:54:71 - Connection error occurred. Waiting for 2075 ms before retrying...
08:54:80 - Connection error occurred. Waiting for 2637 ms before retrying...
08:54:44 - Connection error occurred. Waiting for 3449 ms before retrying...
08:54:89 - Connection error occurred. Waiting for 4616 ms before retrying...
08:55:51 - Connection error occurred. Waiting for 6236 ms before retrying...
08:55:76 - Error: Error: getaddrinfo ENOTFOUND api.contentful.com

該当のソースコード

試したこと

◆contentful-cliをインストールし、login -> space useと試したところ、同様のエラーが発生

powershell
1>contentful space use
2
3[warning] Connection error occurred. Waiting for 2002 ms before retrying...
4[warning] Connection error occurred. Waiting for 2637 ms before retrying...
5[warning] Connection error occurred. Waiting for 3329 ms before retrying...
6[warning] Connection error occurred. Waiting for 4573 ms before retrying...
7[warning] Connection error occurred. Waiting for 6286 ms before retrying...
8  Error: getaddrinfo ENOTFOUND api.contentful.com
9
10│ Error: getaddrinfo ENOTFOUND api.contentful.com
11│
12│      at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:60:26)

◆contentful config add --proxy example.com:NNNN でプロキシ設定
◆再度、space useを実行し、疎通を確認

powershell
1>contentful space use
2
3? Please select a space: (Use arrow keys)
4>test-space (********vc)
5The example project (********uo)

◆以上の作業でプロキシ設定に不備があると仮定し、gatsby-config.jsにプロキシ設定
※gatsby-source-contentfulにはproxy設定のコマンドがないため

JavaScrip
1require('dotenv').config({
2  path: `.env.${process.env.NODE_ENV}`
3})
4
5const contentfulConfig = {
6  spaceId: process.env.CONTENTFUL_SPACE_ID,
7  accessToken: process.env.CONTENTFUL_ACCESS_TOKEN,
8  host: process.env.CONTENTFUL_HOST
9  proxy:{
10    host: 'sample.proxy',
11    port: ****,
12    }
13}
14
15const { spaceId, accessToken } = contentfulConfig
16
17if (!spaceId || !accessToken) {
18  throw new Error(
19    'Contentful spaceId and the access token need to be provided.'
20  )
21}
22
23module.exports = {
24  siteMetadata: {
25    title: 'Gatsby Contentful starter',
26  },
27  pathPrefix: '/gatsby-contentful-starter',
28  plugins: [
29    'gatsby-transformer-remark',
30    'gatsby-transformer-sharp',
31    'gatsby-plugin-react-helmet',
32    'gatsby-plugin-sharp',
33    {
34      resolve: 'gatsby-source-contentful',
35      options: contentfulConfig,
36    }
37  ],
38}