as-json
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Published
20 hours ago •
JairusSW
JairusSW
Feature request: add an option to throw error when additional properties are present in JSON
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Currently additional properties in the incoming JSON are ignored. It would be useful to throw an error when additional properties are encountered.
For example:
// The entry file of your WebAssembly module.
import { JSON } from "json-as/assembly";
@json
class Animal {
name!: string;
type!: string;
}
@json
class Zoo {
animals!: Animal[]
}
export function parse(stringified: string) : string {
const zoo = JSON.parse<Zoo>(stringified, true);
const out = JSON.stringify<Zoo>(zoo);
return out;
}
<!DOCTYPE html>
<html lang="en">
<head>
<script type="module">
import { parse } from "./build/release.js";
const zoo = {
animals: [
{
name: "Fido",
type: "Dog",
age: 10,
},
{
name: "Tiddles",
type: "Cat",
isVerified: false,
},
],
};
try {
document.body.innerText = parse(JSON.stringify(zoo));
} catch (err) {
alert(err);
}
</script>
</head>
<body></body>
</html>
Output:
{"animals":[{"name":"Fido","type":"Dog"},{"name":"Tiddles","type":"Cat"}]}
I'm building in a lot more customization to the lib like returning a Result<T> for error handling, formatting modes, and the option to parse without a schema
If only AssemblyScript had support for try/catch, or a standard error handling mechanism...
If only AssemblyScript had support for
try/catch, or a standard error handling mechanism...
Oh for real! Its too bad nobody is really working on it at all