Map spec types to native TS#
Use printer.nodes to replace the handler for a schema type with one that builds its own TypeScript AST node. This config maps the date type to a Date type reference and integer to the bigint keyword.
import { defineConfig } from 'kubb/config'
import ts from 'typescript'
import { pluginTs } from '@kubb/plugin-ts'
export default defineConfig({
input: './petStore.yaml',
output: { path: './src/gen', clean: true },
plugins: [
pluginTs({
output: { path: 'types', mode: 'directory' },
printer: {
nodes: {
date() {
return ts.factory.createTypeReferenceNode('Date', [])
},
integer() {
return ts.factory.createKeywordTypeNode(ts.SyntaxKind.BigIntKeyword)
},
},
},
}),
],
})
Output example#
The petStore fixture has no plain date (only date-time) schemas. format: int64 fields like id and petId are already bigint by default (the adapter's integerType option defaults to 'bigint'), so the override has no effect on them. It does affect format: int32 fields such as quantity, which becomes bigint only because of the integer handler override (the same printer mechanism the recipe uses for date):
export type Order = {
id?: bigint;
petId?: bigint;
quantity?: bigint;
// ...
};
import type { Order } from './src/gen/types/Order'
function describe(order: Order) {
// id is bigint, not number, so it needs the `n` suffix or BigInt()
return order.id === 10n
}