_/ts-openapi/openapi.json

{
  "openapi" : "3.0.3",
  "info" : {
    "title" : "ts-openapi",
    "version" : "1.0.0"
  },
  "servers" : [ {
    "url" : "http://localhost:3000/api"
  } ],
  "paths" : {
    "/hello" : {
      "get" : {
        "responses" : {
          "200" : {
            "content" : {
              "text/plain" : {
                "schema" : {
                  "$ref" : "#/components/schemas/hello"
                }
              }
            },
            "description" : "OK"
          }
        }
      }
    }
  },
  "components" : {
    "schemas" : {
      "hello" : {
        "pattern" : "^hello$",
        "type" : "string"
      }
    }
  }
}