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typespecをswaggerv2から生成する

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generate typespec from swagger v2

0. setup

$ npm init -y
$ tree . -L 2 -I node_modules
.
├── README.md
├── assets
│   └── swagger.json // pet store
├── compose.yaml
├── dockerfile
└── package.json

dockerfile, compose.yamlはqiitaと同じ内容です。

assets/swagger.jsonassets/swagger.jsonのsampleから取得しています。

1. 依存関係を作成する

Autorest autorestcliを用いて、swagger v2からtypespecの環境を作成していきます。

% npm install -D autorest
package.json
"scripts": {
    "cli:autorest": "autorest"
  },
// 
"devDependencies": {
    "autorest": "^3.7.1"
  },

2. typespecの生成

Autorest CLI autorestを利用して、
@autorest/openapi-to-typespecを参考にtspファイルを生成する。

% npm run cli:autorest --  --openapi-to-typespec --input-file=./assets/swagger.json --use=@autorest/openapi-to-typespec@next --output-folder=./gen

% tree . -L 2 -I node_modules
.
├── README.md
├── assets
│   └── swagger.json
├── compose.yaml
├── dockerfile
├── gen
│   ├── main.tsp
│   ├── models.tsp
│   ├── routes.tsp
│   └── tspconfig.yaml
├── package-lock.json
└── package.json

--output-folderで指定した、gen以下にtypespecのコードが生成される。

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