
Research
/Security News
Critical Vulnerability in NestJS Devtools: Localhost RCE via Sandbox Escape
A flawed sandbox in @nestjs/devtools-integration lets attackers run code on your machine via CSRF, leading to full Remote Code Execution (RCE).
~ npm install json-as
~ npm install visitor-as
For arbitrary-length numbers, use
~ npm install as-bignum
Add the transform to your asc
command
--transform json-as/transform
Or, add it to asconfig.json
{
"options": {
"transform": ["json-as/transform"]
}
}
import { JSON } from "json-as/assembly";
// @json or @serializable work here
@JSON
class Vec3 {
x!: f32;
y!: f32;
z!: f32;
}
@JSON
class Player {
firstName!: string;
lastName!: string;
lastActive!: i32[];
age!: i32;
pos!: Vec3 | null;
isVerified!: boolean;
}
const player: Player = {
firstName: "Emmet",
lastName: "West",
lastActive: [8, 27, 2022],
age: 23,
pos: {
x: 3.4,
y: 1.2,
z: 8.3
},
isVerified: true
};
const stringified = JSON.stringify<Player>(player);
const parsed = JSON.parse<Player>(stringified);
Performance is nearly equal to the JavaScript JSON implementation which is in C++.
Serialize Object (Vec3): ~11.1m ops/s
Deserialize Object (Vec3): ~3.2m ops/s
Serialize Array (int[]): ~1.4m ops/s
Deserialize Array (int[]): ~2.8m ops/s
Serialize String (5): ~5.2m ops/sw
Deserialize String (5): ~1.36m ops/s
Please submit an issue to https://github.com/JairusSW/as-json/issues if you find anything wrong with this library
FAQs
The only JSON library you'll need for AssemblyScript. SIMD enabled
The npm package json-as receives a total of 771 weekly downloads. As such, json-as popularity was classified as not popular.
We found that json-as demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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