curl: Google Cloud Translation API がサポートする言語の一覧を取得

参考ページ
Method: projects.getSupportedLanguages

export GOOGLE_APPLICATION_CREDENTIALS=./***.json
#
curl \
-H "Authorization: Bearer "$(gcloud auth application-default print-access-token) \
-H "Content-Type: application/json; charset=utf-8" \
 https://translation.googleapis.com/v3/projects/project-translation/supportedLanguages

実行結果

{
  "languages": [
    {
      "languageCode": "af",
      "supportSource": true,
      "supportTarget": true
    },
    {
      "languageCode": "am",
      "supportSource": true,
      "supportTarget": true
    },
    {
      "languageCode": "ar",
      "supportSource": true,
      "supportTarget": true
    },
（省略）