48 lines
1.3 KiB
TypeScript
48 lines
1.3 KiB
TypeScript
/**
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* Simple Zod Validation Pipe for NestJS
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* Just uses Zod as-is with clean error formatting
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*/
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import type { PipeTransform, ArgumentMetadata } from "@nestjs/common";
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import { Injectable, BadRequestException } from "@nestjs/common";
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import type { ZodSchema } from "zod";
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import { ZodError } from "zod";
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@Injectable()
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export class ZodValidationPipe implements PipeTransform {
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constructor(private readonly schema: ZodSchema) {}
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transform(value: unknown, _metadata: ArgumentMetadata): unknown {
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try {
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return this.schema.parse(value);
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} catch (error) {
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if (error instanceof ZodError) {
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const errors = error.issues.map(issue => ({
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field: issue.path.join(".") || "root",
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message: issue.message,
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code: issue.code,
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}));
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throw new BadRequestException({
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message: "Validation failed",
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errors,
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statusCode: 400,
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});
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}
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const message = error instanceof Error ? error.message : "Validation failed";
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throw new BadRequestException(message);
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}
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}
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}
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/**
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* Factory function to create Zod pipe (main export)
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*/
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export const ZodPipe = (schema: ZodSchema) => new ZodValidationPipe(schema);
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/**
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* Alternative factory function
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*/
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export const createZodPipe = (schema: ZodSchema) => new ZodValidationPipe(schema);
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