Questions tagged [base64]
Base64 is a family of encoding schemes designed to convert binary data into an ASCII string format, preserving its integrity and ease of transmission.
I am currently working on sending a base64 image using the request npm module from a nodejs/express application to another REST API endpoint. Below is the code I am using: First, I have middleware set up using multer and datauri to upload the image in mem ...
Is there a way to extract an image from the clipboard and convert its content into a base64 encoded string for use in an HTML img tag? I've experimented with the following code snippets: from PIL import ImageGrab from base64 import encodestring img ...
Currently, I am in the process of developing a Chrome App that essentially acts as a wrapper for the main app within a webview. The webview sends a Base64 encoded PDF as a message to the app, which then creates a hidden iframe and loads the PDF into the fr ...
On my webpage, I have a feature that allows users to upload an image along with a description. For example, uploading a company logo and providing the name of the logo for reference. While the image upload works fine and the information can be displayed o ...
In my database, I store all images as base64 with additional data (creation date, likes, owner, etc). I would like to create a /pictures GET endpoint that returns a JSON object containing the image data, for example: Image Data [{ "creation": 1479567 ...
I've been attempting to upload a Base64 encoded image to Google Drive using a Jquery AJAX POST request. The data successfully uploads to Google Drive, but unfortunately, the image does not display in the Google Drive viewer or when downloading the fil ...
I have a list of document names and IDs retrieved from a database, displayed in an unordered list like this: <ul id="list"> <li onmouseover="onHover(docNumber)"> <a herf="#" id="docNumber">DocName</a> </li> </ ...
Is there a way to embed a base64 image in HTML without having to paste the entire code directly into the file? I'm looking for a more efficient method. For example: <div> <p>Image sourced from an online repository</p> <img src="data: ...
I currently have a base64 URL in the following format: data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAYABgAA My objective is to convert this into an image file with the following properties: [File] 0: File lastModified: 1559126658701 lastModifiedDate: Wed M ...
RFC 7515 Section 3 states: Both the JWS Protected Header, JWS Payload, and JWS Signature are base64url encoded in both serializations because JSON does not have a direct way of representing arbitrary octet sequences. What is the limitation that prevents ...
I am encountering an issue while attempting to upload a base64 image from Angular to ExpressJS. The image is being created using html2canvas to generate the base64 representation. When I try to upload the imageData in its current format, I receive an error ...
I've been attempting to decipher a gzipped string from a Postman content response, like so: String for decoding: aAAAAB+LCAAAAAAABAAtyjEKgDAMQNGrhMwquPYGHVx0FIfYRqloAm11Ee+uFLfP591o5WLJFIMmNONUYZdW69HUbckhRzTY88KRxQUCAp03zgqiwCnTvLMLnsDpoRDkO4V5hl ...
Obtaining the readme data for a selected repository from the GitHub api has proven to be a challenge. The "content" seems to be in base64 format, and while attempting to convert it I encountered a fatal error: "Fatal error: Unexpectedly found nil while unw ...
I have encrypted a value using my public key but I am unable to decrypt it with my private key. Is there something wrong with my code? Here is the script that I am using: <?php $encrypted = "Q4tmeBDTS+M2UriF6zNBJYrWcXJuyclWVAFLZaOSNwTS0FOkqd/7yQ9KrwL ...
I am currently working with Angular and attempting to upload a file to be stored in the database, and then download the file. I am utilizing base64 encoding/decoding for this process. It appears to be functioning correctly, however, when I try to open the ...
Currently, I am working on a project that utilizes express.js for backend functionality and ejs as the rendering template for frontend. As part of this project, I have uploaded some images using filepond which were then converted to base64 format. However, ...
I'm currently working on a Java application that interacts with an API to retrieve JSON data. The values in the JSON response are encoded in Base64 format. Here is a snippet of the JSON data (although there are many more key-value pairs): { "id_e ...
Lately, I've been utilizing base64 strings in php to represent my enormous numbers. I'm curious if there is a library or built-in system that can assist me in performing arithmetic operations like addition, subtraction, multiplication, and division with ...
My base64 encoded string is extremely long and lacks spaces or line breaks, causing it to be displayed on a single line with an unsightly horizontal scroll bar in a textarea. Is there a way for me to manually insert carriage returns after using base64_enc ...
I'm attempting to utilize the Blob function to generate a file from information transmitted via a server call, encoded in base64. The initial file is an Excel spreadsheet with a length of 5,507 bytes. After applying base64 encoding (including newlines), th ...
I am facing an issue with my vue.js application where I can successfully apply a filter to a photo, but I am unable to post it. The error message I am encountering is: Uncaught TypeError: Failed to execute 'drawImage' on 'CanvasRenderingContext2D': The pr ...
I am currently working on the backend of a project that does not have a frontend, and I am facing challenges with base64 encoding for images! In my Next.js app, I have an array containing images from the public folder stored in a separate file. I have two ...
Instead of directly selecting an image, I decided to dynamically display it using base64 encoding. <img style="width: 412px;" src="data:image/gif;base64,R0lGODlhwAAAAXAAACH5BAEAAPwALA Is there a way to send this image to a server without triggering a ...
Struggling to convert base64 to byte Array in Angular. Attempted solutions have not been successful. // Handling file upload handleUpload(event) { if (event.target.files[0]) { this.file = event.target.files[0].name; } const file = event.targ ...
<div v-for="(data, key) in imgURL" :key="key"> <img :src= "getLink(data)" /> </div> imgURL here is an array that contains file names. methods: { async getLink(url){ let response = await PostsService.downloadURL({ i ...
I'm currently experimenting with using Colorbox to enhance a website that is being built with Backbone.js. Within my code, I have a straightforward image tag set up like this: <a class="gallery" href="/document/123"><img class="attachment-pr ...
I've been attempting to link my website to a payment platform that necessitates a specific validation key which is initially md5 hashed and then base64 encoded. The instructions guide provided an example with a given input string: input EX123123456100.00 ...
I am encountering an issue when trying to upload an image from an app that has been converted into a base64 string to a Ruby on Rails server. The app is developed using Titanium. However, after retrieving and decoding the image string back into an image, ...
While attempting to convert a base64 encoded JWT header into a string, I encountered an unexpected output: {"alg":"RS256","typ":"JWT","kid":"1234" The output seems to be missing the closing bracket. However, when I decode the same base64 string usi ...
Currently, I am working on a project that involves creating an addin for Office. The challenge I am facing is opening other pptx files from within the addin. After some research, I discovered that I need to use base64 for the PowerPoint.createPresentation( ...
Storing images in MySQL and attempting to display one on a React page, I configured Express. The image in the database is stored as mediumblob and encoded in base64 format. Here is how it appears: iVBORw0KGgoAAAANSUhEUgAABQAAAAPACAYAAABq3NR5AAAgAElEQVR4A ...
The purpose of the code snippet below is to compress a 2 MB JPG file to a 500 KB file, and then upload it to a server upon submitting a <form>. By importing an image from a JPG file into a canvas and exporting it using toDataURL, the following JavaS ...
I need to send an image as base64 to the server. This is how I am making the request: $.post(Config.serviceURL('captureImage/' + memid), { imageString: imageData }, function(data) { alert("Image uploaded!", data); }).fail(function() { ...
I am having trouble converting a local image to base64. The function reader.readAsDataURL is not working for me. Instead of the image data, I always get 'undefined' assigned to the rawImg variable. The file variable contains metadata from the uploaded file ...
I am trying to fetch a JSON string from a specific URL, but the string is encrypted and saved as a .txt file. I need to decrypt this string within my application. Below is the HttpWebRequest code I am using to retrieve the response string: public string ...
On my registration form, users have the option to select an avatar from 2 choices: Select a default avatar Upload their own custom avatar This is how I have implemented it in my HTML page. <img id="preview" src="img/default_1.png"> The chosen av ...
I'm having some trouble displaying an image that I've converted to base64 encoding. data:image/vnd.microsoft.icon;base64,AAABAAIAICAAA..... No matter what I try, I always end up with the following error: { changingThisBreaksApplicationSecurity: 'data ...
Could someone please help me with a problem I'm facing? I am utilizing an AngularJS .pdf viewer that displays documents in a modal using base64. Everything works smoothly when the base64 is generated from a .pdf file. The backend (Java) generates this ba ...
Seeking to achieve "feature parity" between Node's Crypto.createHmac( 'sha256', buffer) and CryptoJS.HmacSHA256(..., secret), how can this be accomplished? I have a piece of 3rd party code that functions as seen in the method node1. My goal is to replicat ...
Struggling to correctly format the path using the base64 module, my desired output should resemble: C:UsersUser_NameDocumentsphotosphoto.png In a previous attempt, I checked the variable image_open and saw the slashes. However, after decoding and ...
I am currently working with Angular1 using TypeScript and I have a question that needs some clarification. Within the environment that I am operating in, is there a method available to encode and decode a string in base64? Despite conducting extensive re ...
I have a piece of ruby code that I'm trying to convert to PHP : print OpenSSL::HMAC.hexdigest(OpenSSL::Digest.new("sha1"), 'hello', Base64.encode64('bonjour')) The output : 62ac34e5d28563d6a50272d660805d1f8c791e41 This is my ...