@jesuferanmi/resource-transformer/dist/base.resource.js

Laravel-style API resources for NestJS apps

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.BaseResource = void 0;
class BaseResource {
    constructor(resource) {
        this.resource = resource;
        this.additionalData = {};
    }
    /**
     * Convert the resource to JSON, merging additional data.
     */
    toJSON() {
        return {
            ...this.toArray(),
            ...this.additionalData,
        };
    }
    /**
     * Conditionally include a value if condition is true.
     */
    when(condition, value, defaultValue = undefined) {
        return condition ? value : defaultValue;
    }
    /**
     * Include related resource only if relation is loaded (exists).
     * Handles both single object and array of objects.
     */
    whenLoaded(relation, ResourceClass) {
        const related = this.resource?.[relation];
        if (related === undefined || related === null) {
            return null;
        }
        if (Array.isArray(related)) {
            return related.map(item => new ResourceClass(item).toArray());
        }
        return new ResourceClass(related).toArray();
    }
    /**
     * Add extra data to merge into final output.
     */
    additional(data) {
        this.additionalData = { ...this.additionalData, ...data };
        return this;
    }
}
exports.BaseResource = BaseResource;