@elsikora/nestjs-crud-automator/dist/esm/utility/api/route/discriminator/build-open-api-schema.utility.js

A library for automating the creation of CRUD operations in NestJS.

import { getSchemaPath } from '@nestjs/swagger';
import { ApiRouteValidateDiscriminatedDtoProperties } from './validate-dto-properties.utility.js';

/**
 * Builds an OpenAPI oneOf schema with discriminator metadata for route-level DTO variants.
 * @param {TApiRouteDiscriminatedDtoProperties} properties - Route-level discriminated DTO config.
 * @param {string} context - Error message context.
 * @returns {SchemaObject} OpenAPI schema for a discriminated root DTO.
 */
function ApiRouteBuildDiscriminatedDtoOpenApiSchema(properties, context) {
    ApiRouteValidateDiscriminatedDtoProperties(properties, context);
    return {
        discriminator: {
            mapping: Object.fromEntries(Object.entries(properties.discriminator.mapping).map(([key, value]) => [key, getSchemaPath(value)])),
            propertyName: properties.discriminator.propertyName,
        },
        oneOf: properties.type.map((type) => {
            return { $ref: getSchemaPath(type) };
        }),
    };
}

export { ApiRouteBuildDiscriminatedDtoOpenApiSchema };
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