class-validator
Version:
Decorator-based property validation for classes.
52 lines • 2.8 kB
JavaScript
import { ValidationExecutor } from './ValidationExecutor';
/**
* Validator performs validation of the given object based on its metadata.
*/
export class Validator {
/**
* Performs validation of the given object based on decorators or validation schema.
*/
validate(objectOrSchemaName, objectOrValidationOptions, maybeValidatorOptions) {
return this.coreValidate(objectOrSchemaName, objectOrValidationOptions, maybeValidatorOptions);
}
/**
* Performs validation of the given object based on decorators or validation schema and reject on error.
*/
async validateOrReject(objectOrSchemaName, objectOrValidationOptions, maybeValidatorOptions) {
const errors = await this.coreValidate(objectOrSchemaName, objectOrValidationOptions, maybeValidatorOptions);
if (errors.length)
return Promise.reject(errors);
}
/**
* Performs validation of the given object based on decorators or validation schema.
*/
validateSync(objectOrSchemaName, objectOrValidationOptions, maybeValidatorOptions) {
const object = typeof objectOrSchemaName === 'string' ? objectOrValidationOptions : objectOrSchemaName;
const options = typeof objectOrSchemaName === 'string' ? maybeValidatorOptions : objectOrValidationOptions;
const schema = typeof objectOrSchemaName === 'string' ? objectOrSchemaName : undefined;
const executor = new ValidationExecutor(this, options);
executor.ignoreAsyncValidations = true;
const validationErrors = [];
executor.execute(object, schema, validationErrors);
return executor.stripEmptyErrors(validationErrors);
}
// -------------------------------------------------------------------------
// Private Properties
// -------------------------------------------------------------------------
/**
* Performs validation of the given object based on decorators or validation schema.
* Common method for `validateOrReject` and `validate` methods.
*/
coreValidate(objectOrSchemaName, objectOrValidationOptions, maybeValidatorOptions) {
const object = typeof objectOrSchemaName === 'string' ? objectOrValidationOptions : objectOrSchemaName;
const options = typeof objectOrSchemaName === 'string' ? maybeValidatorOptions : objectOrValidationOptions;
const schema = typeof objectOrSchemaName === 'string' ? objectOrSchemaName : undefined;
const executor = new ValidationExecutor(this, options);
const validationErrors = [];
executor.execute(object, schema, validationErrors);
return Promise.all(executor.awaitingPromises).then(() => {
return executor.stripEmptyErrors(validationErrors);
});
}
}
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