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Curl: GitHub で GraphQL を使う

Last updated at Posted at 2019-04-08

GitHub で GraphQL を使う方法です。
次のページを参考にしました。
GraphQL入門 - 使いたくなるGraphQL

  1. GitHub にログインして、アクセストークンを作成します。
  2. 方法は次のページで説明されています。 [Creating a personal access token for the command line](https://help.github.com/en/articles/creating-a-personal-access-token-for-the-command-line)
  3. ログインID からユーザー名を取得します。
  4.  私の ekzemplaro を例に取ります。
    get_name.sh
    #! /bin/bash
    #
    #       get_name.sh
    #
    #                                               Apr/8/2019
    # 
    ACCESS_TOKEN="*******your_access_token**********"
    #
    URL="https://api.github.com/graphql"
    #
    curl -H "Authorization: bearer "$ACCESS_TOKEN -X POST -d@query.json $URL
    #
    
    query.json
    {
     "query": "query { user(login: \"ekzemplaro\") { name }}"
    }
    

    実行結果

    $ ./get_name.sh 
    {"data":{"user":{"name":"Uchida Masatomo"}}}
    
  5. クエリーをもう少し複雑にしてみます。
  6. query02.json
    {
     "query": "query { user(login: \"ekzemplaro\") { name location url }}"
    }
    

    実行結果

    {
      "data": {
        "user": {
          "name": "Uchida Masatomo",
          "location": "Tochigi,Japan",
          "url": "https://github.com/ekzemplaro"
        }
      }
    }
    
  7. クエリーを変更します。
  8. query03.json
    {
     "query": "query {viewer {
        repositories(first: 1) { edges { node { name description } } }
        }
      }"
    }
    

    実行結果

    {
      "data": {
        "viewer": {
          "repositories": {
            "edges": [
              {
                "node": {
                  "name": "librivox_catalog",
                  "description": "LibriVox's catalog page"
                }
              }
            ]
          }
        }
      }
    }
    
  9. 最新2つのリボジトリーを取得してみます。
  10. query04.json
    {
     "query": "query {viewer {
    repositories(last: 2) { edges { node { name description } } }
        }
      }"
    }
    

    実行結果

    {
      "data": {
        "viewer": {
          "repositories": {
            "edges": [
              {
                "node": {
                  "name": "django_plural_table",
                  "description": "Django sample"
                }
              },
              {
                "node": {
                  "name": "django_member_shozoku",
                  "description": "Django Example"
                }
              }
            ]
          }
        }
      }
    }
    

確認したバージョン

$ curl --version
curl 8.0.1 (x86_64-pc-linux-gnu) libcurl/8.0.1 OpenSSL/3.0.8 zlib/1.2.13 brotli/1.0.9 zstd/1.5.4 libidn2/2.3.4 libpsl/0.21.2 (+libidn2/2.3.4) libssh2/1.10.0 nghttp2/1.52.0
Release-Date: [unreleased]
Protocols: dict file ftp ftps gopher gophers http https imap imaps mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL threadsafe TLS-SRP UnixSockets zstd

参考

GitHub GraphQL API Explorer の使い方

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