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perf(validators): cache compiled AJV validators instead of recompiling each call (#94)

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validate() was creating a new AJV instance and recompiling the schema on every
invocation. Schema compilation is expensive (JSON Schema parsing, format setup).
Cache the compiled validator per SchemaKind so compilation happens once.
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forgou37 2026-07-12 18:09:06 +03:00 • committed by GitHub
parent 506c001151
commit 9346d02a39
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1 changed files with 11 additions and 2 deletions
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13
packages/validators/src/index.ts
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@ -17,6 +17,16 @@ export function createValidator() {
return ajv;
}
const _ajv = createValidator();
const _compiledValidators = new Map<SchemaKind, ReturnType<typeof _ajv.compile>>();
function getCompiledValidator(kind: SchemaKind) {
if (!_compiledValidators.has(kind)) {
_compiledValidators.set(kind, _ajv.compile(schemas[kind]));
}
return _compiledValidators.get(kind)!;
}
export function parseDocument(input: string, fileName = "document") {
if (fileName.toLowerCase().endsWith(".json")) {
return JSON.parse(input) as unknown;
@ -26,8 +36,7 @@ export function parseDocument(input: string, fileName = "document") {
}
export function validate(kind: SchemaKind, data: unknown): ValidationResult {
const ajv = createValidator();
const validateDocument = ajv.compile(schemas[kind]);
const validateDocument = getCompiledValidator(kind);
const ok = validateDocument(data);
if (ok) {