JSONからCodable化されたstructを自動生成するツールを作った話 ref: https://qiita.com/YutoMizutani/items/106cae55091f26bba641

file0.js

{
    "user": {
        "Name": "Yuto Mizutani"
    },
    "lib": {
        "lib-name": "JSONtoCodable",
        "year": 2018,
        "version": "1.0.2",
        "released": "2018-09-22"
    },
    "text": "Hello, world!!"
}

file1.swift

public struct Result: Codable {
    public let user: User
    public let lib: Lib
    public let text: String

    public struct User: Codable {
        public let name: String

        private enum CodingKeys: String, CodingKey {
            case name = "Name"
        }
    }

    public struct Lib: Codable {
        public let libName: String
        public let year: Int
        public let version: String
        public let released: String

        private enum CodingKeys: String, CodingKey {
            case libName = "lib-name"
            case year
            case version
            case released
        }
    }
}

file2.txt

$ brew tap YutoMizutani/jc
$ brew install jc

file3.txt

$ curl https://httpbin.org/get | jc
$ curl https://httpbin.org/get | jc > Result.swift