@jsgurucompany/jsg-nestjs-common/lib/validation/validation.pipe.js

Initial README.md

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AppValidationPipe = void 0;
const common_1 = require("@nestjs/common");
let AppValidationPipe = class AppValidationPipe extends common_1.ValidationPipe {
    constructor(options) {
        super(options !== null && options !== void 0 ? options : {});
        this.options = options;
        this.classTransformer = this.loadTransformer();
        this.classValidator = this.loadValidator();
    }
    throwException(errors) {
        return this.exceptionFactory(errors);
    }
    async transform(value, metadata) {
        const metatype = metadata.metatype;
        const entity = this.classTransformer.plainToClass(metatype, value, this.transformOptions);
        const rawErrors = await this.classValidator.validate(entity, this.validatorOptions);
        if (rawErrors.length > 0) {
            const errors = this.transformValidationErrors(rawErrors);
            throw this.throwException(errors);
        }
        return value;
    }
    transformValidationErrors(initialErrors) {
        if (!initialErrors) {
            return [];
        }
        const errors = [];
        this.resolveValidationErrors(errors, '', initialErrors);
        return errors;
    }
    resolveValidationErrors(totalErrors, path = '', currentErrors) {
        for (const error of currentErrors) {
            const currentPath = `${path ? `${path}.` : ''}${error.property}`;
            if (error.constraints) {
                totalErrors.push({
                    property: currentPath,
                    value: error.value,
                    violations: error.constraints,
                });
            }
            this.resolveValidationErrors(totalErrors, currentPath, error.children);
        }
    }
};
AppValidationPipe = __decorate([
    (0, common_1.Injectable)(),
    __metadata("design:paramtypes", [Object])
], AppValidationPipe);
exports.AppValidationPipe = AppValidationPipe;
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