48 lines
1.2 KiB
TypeScript
48 lines
1.2 KiB
TypeScript
/**
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* This file was originally taken directly from:
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* https://github.com/anatine/zod-plugins/blob/main/libs/zod-nestjs/src/lib/zod-validation-pipe.ts
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*/
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import {
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ArgumentMetadata,
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Injectable,
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Optional,
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PipeTransform,
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} from '@nestjs/common';
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import { Fail, FT } from 'picsur-shared/dist/types/failable';
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import { ZodDtoStatic } from 'picsur-shared/dist/util/create-zod-dto';
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export interface ZodValidationPipeOptions {
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strict?: boolean;
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validateCustom?: boolean;
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}
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@Injectable()
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export class ZodValidationPipe implements PipeTransform {
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private strict: boolean;
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private validateCustom: boolean;
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constructor(@Optional() options?: ZodValidationPipeOptions) {
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this.strict = options?.strict ?? true;
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this.validateCustom = options?.validateCustom ?? false;
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}
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public transform(value: unknown, metadata: ArgumentMetadata): unknown {
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if (!this.validateCustom && metadata.type === 'custom') return value;
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const zodSchema = (metadata?.metatype as ZodDtoStatic)?.zodSchema;
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if (zodSchema) {
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const parseResult = zodSchema.safeParse(value);
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if (!parseResult.success) {
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throw Fail(FT.UsrValidation, 'Invalid data', parseResult.error);
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}
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return parseResult.data;
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}
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return value;
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}
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}
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