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

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

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13 changes: 11 additions & 2 deletions packages/validators/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -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.endsWith(".json")) {
return JSON.parse(input) as unknown;
Expand All @@ -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) {
Expand Down