import {Validator, ValidatorResult} from 'jsonschema'; import {ecSignatureSchema, ecSignatureParameterSchema} 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. public 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(ecSignatureParameterSchema, ecSignatureParameterSchema.id); this.validator.addSchema(orderFillOrKillRequestsSchema, orderFillOrKillRequestsSchema.id); } public validate(instance: object, schema: Schema): ValidatorResult { return this.validator.validate(instance, schema); } }