Nim: Object to JSON

Nim: Object to JSON | Glenn Gillen

Nim: Object to JSON

Mar 21, 2022

Turning a data structure into JSON is incredibly easy in Nim:


import json

type
  Person = object
    first: string
    last: string

var p = Person(first: "Glenn", last: "Gillen")
echo(%p)

Where the % macro/operator is shorthand from the json module for converting to JSON. There's also the %* macro which can be used for assigning an object directly into a JSON data structure:


import json
let obj = %* { "first_name": "glenn", "last_name": "gillen" }
echo $obj

Hi, I'm Glenn! 👋 I've spent most of my career working with or at startups. I'm currently the Director of Product @ Ockam where I'm helping developers build applications and systems that are secure-by-design. It's time we started securely connecting apps, not networks.

Previously I led the Terraform product team @ HashiCorp, where we launched Terraform Cloud and set the stage for a successful IPO. Prior to that I was part of the Startup Team @ AWS, and earlier still an early employee @ Heroku. I've also invested in a couple of dozen early stage startups.