97 lines
3.2 KiB
JavaScript
97 lines
3.2 KiB
JavaScript
/**
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* @typedef {{
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* fileBase64: string,
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* fileBase64Full: string,
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* fileName: string,
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* fileSize: number,
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* fileType: string,
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* }} FunctionReturn
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*/
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/**
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* Input File to base64
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* ==============================================================================
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*
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* @description This function takes in a *SINGLE* input file from a HTML file input element.
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* HTML file input elements usually return an array of input objects, so be sure to select the target
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* file from the array.
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*
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* @async
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*
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* @param {object} params - Single object passed
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* @param {object} params.inputFile - HTML input File
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* @param {string} params.inputFile.name - Input File Name
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* @param {number} params.inputFile.size - Input File Size in bytes
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* @param {string} params.inputFile.type - Input File Type: "JPEG", "PNG", "PDF", etc. Whichever allowed regexp is provided
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* @param {RegExp} [params.allowedRegex] - Regexp containing the allowed file types
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*
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* @returns { Promise<FunctionReturn> } - Return Object
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*/
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module.exports = async function inputFileToBase64({ inputFile, allowedRegex }) {
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/**
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* == Initialize
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*
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* @description Initialize
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*/
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const allowedTypesRegex = allowedRegex ? allowedRegex : /image\/*|\/pdf/;
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if (!inputFile?.type?.match(allowedTypesRegex)) {
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window.alert(`We currently don't support ${inputFile.type} file types. Support is coming soon. For now we support only images and PDFs.`);
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return {
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fileBase64: null,
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fileBase64Full: null,
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fileName: inputFile.name,
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fileSize: null,
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fileType: null,
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};
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}
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try {
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/** Process File **/
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let fileName = inputFile.name.replace(/\..*/, "");
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/** Add source to new file **/
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const fileData = await new Promise((resolve, reject) => {
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var reader = new FileReader();
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reader.readAsDataURL(inputFile);
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reader.onload = function () {
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resolve(reader.result);
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};
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reader.onerror = function (/** @type {*} */ error) {
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console.log("Error: ", error.message);
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};
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});
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////////////////////////////////////////
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////////////////////////////////////////
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////////////////////////////////////////
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return {
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fileBase64: fileData.replace(/.*?base64,/, ""),
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fileBase64Full: fileData,
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fileName: fileName,
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fileSize: inputFile.size,
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fileType: inputFile.type,
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};
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////////////////////////////////////////
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////////////////////////////////////////
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////////////////////////////////////////
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} catch (/** @type {*} */ error) {
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console.log("File Processing Error! =>", error.message);
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return {
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fileBase64: null,
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fileBase64Full: null,
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fileName: inputFile.name,
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fileSize: null,
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fileType: null,
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};
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}
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};
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////////////////////////////////////////
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////////////////////////////////////////
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////////////////////////////////////////
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