@jadl/builders/dist/builders/FileBuilder.js

Builders for JaDL

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.FileBuilder = void 0;
const form_data_1 = __importDefault(require("form-data"));
/**
 * File builder for easily sending file(s) as a response
 * @example
 * return new FileBuilder()
 *   .add('image.png', imageBuffer)
 *   .add('info.txt', Buffer.from('What\'s up!'))
 */
class FileBuilder {
    constructor(files = []) {
        this.files = files;
    }
    /**
     * Adds a file to be sent
     * @param name Name of file
     * @param buffer Buffer of the file
     * @returns {FileBuilder}
     */
    add(name, buffer) {
        this.files.push({ name, buffer });
        return this;
    }
    /**
     * Removes a file from the builder
     * @param name Name of file
     * @returns {FileBuilder}
     */
    remove(name) {
        this.files = this.files.filter((x) => x.name !== name);
        return this;
    }
    /**
     * Finds a file by it's name
     * @param name Name of file
     * @returns {FileBuilderFile}
     */
    find(name) {
        return this.files.find((x) => x.name === name);
    }
    /**
     * Clones this file builder to a deep cloned new FileBuilder
     * @returns {FileBuilder} cloned FileBuilder
     */
    clone() {
        return new FileBuilder(this.files.map((x) => ({
            name: x.name,
            buffer: Buffer.from(x.buffer)
        })));
    }
    /**
     * Renders the FileBuilder to form-data
     * @returns {FormData}
     */
    toFormData() {
        const form = new form_data_1.default();
        if (this.files.length < 2) {
            form.append('file', this.files[0].buffer, this.files[0].name);
        }
        else {
            for (let i = 0; i < this.files.length; i++) {
                const file = this.files[i];
                form.append(`file${i}`, file.buffer, file.name);
            }
        }
        return form;
    }
}
exports.FileBuilder = FileBuilder;