@nestjs/common
Version:
Nest - modern, fast, powerful node.js web framework (@common)
56 lines (55 loc) • 2.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ParseEnumPipe = void 0;
const tslib_1 = require("tslib");
const core_1 = require("../decorators/core");
const index_1 = require("../index");
const http_error_by_code_util_1 = require("../utils/http-error-by-code.util");
const shared_utils_1 = require("../utils/shared.utils");
/**
* Defines the built-in ParseEnum Pipe
*
* @see [Built-in Pipes](https://docs.nestjs.com/pipes#built-in-pipes)
*
* @publicApi
*/
let ParseEnumPipe = class ParseEnumPipe {
constructor(enumType, options) {
this.enumType = enumType;
this.options = options;
if (!enumType) {
throw new Error(`"ParseEnumPipe" requires "enumType" argument specified (to validate input values).`);
}
options = options || {};
const { exceptionFactory, errorHttpStatusCode = index_1.HttpStatus.BAD_REQUEST } = options;
this.exceptionFactory =
exceptionFactory ||
(error => new http_error_by_code_util_1.HttpErrorByCode[errorHttpStatusCode](error));
}
/**
* Method that accesses and performs optional transformation on argument for
* in-flight requests.
*
* @param value currently processed route argument
* @param metadata contains metadata about the currently processed route argument
*/
async transform(value, metadata) {
if ((0, shared_utils_1.isNil)(value) && this.options?.optional) {
return value;
}
if (!this.isEnum(value)) {
throw this.exceptionFactory('Validation failed (enum string is expected)');
}
return value;
}
isEnum(value) {
const enumValues = Object.keys(this.enumType).map(item => this.enumType[item]);
return enumValues.includes(value);
}
};
exports.ParseEnumPipe = ParseEnumPipe;
exports.ParseEnumPipe = ParseEnumPipe = tslib_1.__decorate([
(0, core_1.Injectable)(),
tslib_1.__param(1, (0, core_1.Optional)()),
tslib_1.__metadata("design:paramtypes", [Object, Object])
], ParseEnumPipe);