public-pool/src/models/stratum-messages/StratumErrorMessage.ts

import { ValidationError } from 'class-validator';

import { eStratumErrorCode } from '../enums/eStratumErrorCode';

export class StratumErrorMessage {

    constructor(
        private id: number = null,
        private errorCode: eStratumErrorCode,
        private errorMessage: string,
        private validationErrors: ValidationError[] = []
    ) {

    }

    public response(): string {

        const error = {
            id: this.id,
            result: null,
            error: [this.errorCode, this.errorMessage, this.validationErrors.reduce((pre, cur) => `${pre}, ${cur.value}`, '')]
        }
        return JSON.stringify(error) + '\n';
    }
}