How do I import Json?

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1

I’m porting various typescript project as a way to learn rescript for great good.

How do I convert the following typescript import to rescript?

import schema from './schema.json';

2

Hi. Is this what you are looking for?

type schema = {
  name: string,
  age: int,
}
@module external leftPad: schema = "./schema.json"

PlayGround link.

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3

This gives a type to the data what’s in the Json.
I guess I kind of didn’t expect it also needs a type.

This is for a test double I’m writing, but in the real app, the schema will be determined at runtime, so I can’t do:

type schema = {
  name: string,
  age: int,
}
4

To dynamically decode JSON data at runtime, you can use the Js.Json module. Your external code would look like this: @module external schema: Js.Json.t = "./schema.json"

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5

How do I add with { type: "json" } in import json from "./data.json" with { type: "json" };?

6 
@module({from: "./data.json", with: {type_: "json"}})
external json: JSON.t = "default"

Compiles to:

import DataJson from "./data.json" with {"type": "json"};

var json = DataJson;
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7

Thanks, I missed Import from / Export to JS | ReScript Language Manual indeed.

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