convert-base64-to-image/lib/utils.js

This is a node package that helps you to convert base64 string created by javascript file reader to image downloadable file

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.bufferToImageAndWriteImageToPath = exports.convertBase64ToBuffer = exports.readBase64File = void 0;
var fs = require("fs");
var manipulateUTF8String = function (utf8) {
    try {
        var base64 = utf8.split(',')[1];
        return base64;
    }
    catch (error) {
        throw new Error('Invalid base64 string');
    }
};
var readBase64File = function (base64) {
    try {
        var utf8OrBase64String = base64 ? base64 : fs.readFileSync('base64String.txt', 'utf8');
        var base64String = manipulateUTF8String(utf8OrBase64String);
        return base64String;
    }
    catch (error) {
        throw error;
    }
};
exports.readBase64File = readBase64File;
var convertBase64ToBuffer = function (base64) {
    try {
        var buffer = Buffer.from(base64, 'base64');
        return buffer;
    }
    catch (error) {
        throw error;
    }
};
exports.convertBase64ToBuffer = convertBase64ToBuffer;
/**
 * @name bufferToImageAndWriteImageToPath
 * @description Takes a buffer and converts it to image and writes image to path.
 * @param {Buffer} buffer Buffer to be converted to image.
 * @param {string} path Full path to write image to e.g /path/to/image.png
 *
 * @returns {void}
 */
var bufferToImageAndWriteImageToPath = function (buffer, path) {
    try {
        var fullPath = path.split('/');
        var fileName = fullPath.at(-1);
        var dir = fullPath.slice(0, -1).join('/');
        if (!fs.existsSync(dir)) {
            fs.mkdirSync(dir, { recursive: true });
            fs.writeFileSync("".concat(dir, "/").concat(fileName), buffer);
        }
        else {
            fs.writeFileSync(path, buffer);
        }
    }
    catch (error) {
        throw error;
    }
};
exports.bufferToImageAndWriteImageToPath = bufferToImageAndWriteImageToPath;