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import {Validator, ValidatorResult} from 'jsonschema';
import {ecSignatureSchema, ecSignatureParameter} from '../schemas/ec_signature_schema';
import {orderSchema, signedOrderSchema} from '../schemas/order_schemas';
import {addressSchema, numberSchema} from '../schemas/basic_type_schemas';
import {tokenSchema} from '../schemas/token_schema';
import {orderFillOrKillRequestsSchema} from '../schemas/order_fill_or_kill_requests_schema';
export class SchemaValidator {
private validator: Validator;
// In order to validate a complex JS object using jsonschema, we must replace any complex
// sub-types (e.g BigNumber) with a simpler string representation. Since BigNumber and other
// complex types implement the `toString` method, we can stringify the object and
// then parse it. The resultant object can then be checked using jsonschema.
private static convertToJSONSchemaCompatibleObject(obj: any): any {
return JSON.parse(JSON.stringify(obj));
}
constructor() {
this.validator = new Validator();
this.validator.addSchema(tokenSchema, tokenSchema.id);
this.validator.addSchema(orderSchema, orderSchema.id);
this.validator.addSchema(numberSchema, numberSchema.id);
this.validator.addSchema(addressSchema, addressSchema.id);
this.validator.addSchema(ecSignatureSchema, ecSignatureSchema.id);
this.validator.addSchema(signedOrderSchema, signedOrderSchema.id);
this.validator.addSchema(ecSignatureParameter, ecSignatureParameter.id);
this.validator.addSchema(orderFillOrKillRequestsSchema, orderFillOrKillRequestsSchema.id);
}
public validate(instance: any, schema: Schema): ValidatorResult {
const jsonSchemaCompatibleObject = SchemaValidator.convertToJSONSchemaCompatibleObject(instance);
return this.validator.validate(jsonSchemaCompatibleObject, schema);
}
}
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