lazy-schema
v1.0.4
Published
A simple schema validation.
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lazy-schema
A simple schema validation.
Installation
npm i lazy-schema
How to Use
import { schema } from 'lazy-schema'
const exampleSchema = schema({
string: "hi",
number: 123,
boolean: true,
null_value: null
});
let value0 = exampleSchema({
string: "nice"
});
console.log(value0);
// {
// string: "nice",
// number: 123,
// boolean: true,
// null_value: null
// }
let value1 = exampleSchema({
not_in_the_schema: "don't tell me what to do!"
});
// Key 'not_in_the_schema' does not exist!
let value2 = exampleSchema({
// Default values with `null` will not be added.
__discrete__: true
});
console.log(value2);
// {
// string: "hi",
// number: 123,
// boolean: true
// }
let value3 = exampleSchema({
// `null` values will not be added.
__no_null__: true,
string: null,
});
console.log(value3);
// {
// number: 123,
// boolean: true
// }
let value4 = exampleSchema({
// Default values will not be added.
__no_default__: true,
boolean: false
});
console.log(value4);
// {
// boolean: false
// }
const example2Schema = schema({
string: "hi",
number: 123,
boolean: true,
// You can use functions too!
date_created: () => new Date()
});
let value5 = example2Schema({});
console.log(value5);
// {
// string: "hi",
// number: 123,
// boolean: true,
// date_created: [Date object]
// }
How to Use: JSON files
You can import .json
files.
example1.json
{
"string_value": "hello",
"number_value": 123,
"boolean_value": true
}
example2.json
{
"__double_underscores_are_ignored__": "Just like comments.",
"__note__": "You can use special keywords here.",
"__no_null__": true,
"string_value": "hello",
"number_value": 123,
"boolean_value": true,
"null_value": null
}
import { schema } from 'lazy-schema'
import example1JSON from './path/to/example1.json' assert { type: 'json' }
import example2JSON from './path/to/example2.json' assert { type: 'json' }
const example1Schema = schema(example1JSON);
let value1 = example1Schema({});
console.log(value1);
// {
// string_value: "hello",
// number_value: 123,
// boolean_value: true
// }
const example2Schema = schema(example2JSON);
let value2 = example2Schema({});
console.log(value2);
// {
// string_value: "hello",
// number_value: 123,
// boolean_value: true
// }