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json2swift

A macOS command line tool that generates excellent Swift data models based on JSON data.

It takes care of the boring error-prone grunt work of consuming JSON data in your app.

Feel free to modify the code it creates for you.

Written and unit tested in Swift 4.2.

Features

• Generates immutable Swift struct definitions
• Generates thread-safe code to create structs from JSON data
• Performs sophisticated type inference to detect URLs, parse dates, etc.
• Creates properties with required values whenever possible, but optional if necessary
• Processes a single JSON file or a directory of JSON files

What is code generation?

Using a JSON-to-Swift code generator is very different from using a JSON library API. If you have never worked with a code generator before, check out this blog post for a quick overview.

How to get it

• Download the json2swift app binary from the latest release
• Copy json2swift to your desktop
• Open a Terminal window and run this command to give the app permission to execute:

chmod +x ~/Desktop/json2swift

Or build the tool in Xcode yourself:

• Clone the repository / Download the source code
• Build the project
• Open a Finder window to the executable file

• Drag json2swift from the Finder window to your desktop

How to install it

Assuming that the json2swift app is on your desktop…

Open a Terminal window and run this command:

cp ~/Desktop/json2swift /usr/local/bin/

Verify json2swift is in your search path by running this in Terminal:

json2swift

You should see the tool respond like this:

Error: Please provide a JSON file path or directory path.

Now that a copy of json2swift is in your search path, delete it from your desktop.

You're ready to go!