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Michael Dyrynda:
Uploading files to Amazon S3 from the browser - Part One
Nov 06, 2017 @ 11:58:34

Michael Dyrynda has a tutorial posted to his site starting off a new series showing how to create the functionality in your application to upload files to Amazon S3 from the browser. The tutorial is designed for those that don't already have something in their framework that allows for this upload handling.

I recently took on a freelance project that involved having to upload media files. This is a trivially simple task to accomplish if you're using something like Laravel, using out-of-the-box support for S3 storage.

In this particular case, however, I was dealing with files potentially multiple gigabytes in size. Although a simpler to implement, I didn't want to have to have users of the site upload the file to my application - and thus server - before having my server re-upload the file to S3.

In his case, he needed something that would allow for the upload of very large files without having to pass it through the backend server to get there. He starts by walking you through the setup on the S3 side, creating an IAM policy for the upload and a form that points to the instance. The form includes a "key" value that contains the filename for the end result. He also shows some of the other options that can be included like the policy to use a redirect location and a signature to verify the upload. He then shows the code required to make it work, creating an upload route and a main form page that generates the signature and policy information for the form based on configuration options.

tagged: amazon s3 upload tutorial part1 series direct post

Link: https://dyrynda.com.au/blog/uploading-files-to-amazon-s3-from-the-browser-part-one

Alejandro Celaya:
Managing PUT requests with file uploads in psr-7 and middleware PHP applications
Mar 07, 2017 @ 13:17:01

Alejandro Celaya has posted a new tutorial to his site covering the handling of PUT requests in PSR-7 applications for file uploads via middleware.

It has been a long time since I first realized that handling file uploads in non-POST requests (like PUT) wasn't an easy task. One could assume the $_FILES array should be populated regardless the HTTP verb, but actually, PHP doesn't do it on its own.

After a long time wanting to find a solution to this problem, I've finally dedicated the time to get something functional, that allows file uploads to be transparently handled regardless the HTTP verb (it works the same way in POST, PUT and PATCH requests).

Since nowadays I try to work with psr-7/middleware based applications, I have created a Zend Expressive app that registers a middleware capable of parsing a multipart/form-data request body, populating the request's uploaded files array and parsed body array. This way, you can call $request->getUploadedFiles() or $request->getParsedBody() in any PUT or PATCH action, the same way you would do in a POST action.

His example application shows a simple HTML form that, when submitted, changes the HTTP request type based on a radio option selected at the bottom. He walks through the steps that the application takes to handle the upload via this middleware that makes it possible to work with the body of the PUT the same way as other requests. He goes through each part of the code that's required to make the middleware flow work and finishes up the post looking at a few other things to consider (like opting for POST over PUT for file uploads).

tagged: zendexpressive application tutorial psr7 middleware put request fileupload upload

Link: https://blog.alejandrocelaya.com/2017/03/06/managing-put-requests-with-file-uploads-in-psr-7-and-middleware-php-applications/

TutsPlus.com:
Programming With Yii2: Using Amazon S3
Dec 08, 2016 @ 11:27:16

The TutsPlus.com site has continued their series of posts in the "Programming with Yii2" series with this new tutorial covering the use of the Amazon S3 service for sorting files remotely in your application.

In today's tutorial, I'll walk you through the basics of browsing, uploading and downloading files to and from Amazon's cloud-based S3 storage service. Essentially, I've created a simple storage model and controller as examples which you can extend for your needs.

He starts with a brief introduction to the S3 service (including a video from Amazon themselves) and what kinds of things it could be used for. He helps you get started via the AWS web GUI, creating an S3 "bucket" and viewing their contents. He shows how to get the credentials you'll need to connect to the bucket and defining them in the ini configuration file. The tutorial then shows how to use this AWS extension for Yii2 to connect to and work with the S3 bucket you've created. This includes browsing the content, uploading new files and downloading current ones.

tagged: yii2 framework series amazon s3 file storage download upload tutorial

Link: https://code.tutsplus.com/tutorials/programming-with-yii2-using-amazon-s3--cms-26347

SitePoint PHP Blog:
Build Your Own Dropbox Client with the Dropbox API
Nov 04, 2016 @ 09:36:55

On the SitePoint PHP blog there's a new tutorial posted by author Wern Ancheta showing you how to make your own DropBox client with the help of a bit of PHP and the DropBox API.

There are lots of file hosting solutions out there, but few things compare to Dropbox because of its simplicity, auto-sync feature, cross-platform support and other cool features.

As a PHP developer you can even take advantage of their API in order to create apps that use its full capabilities. In this article, you’ll learn how to build one such app to perform different operations in a user’s Dropbox account. You will be using the Dropbox API version 2 in this tutorial. If you want to follow along, you can clone the project from Github.

They start off by walking you through the creation of an application on the DropBox side (required to connect to the API) and how to get its credentials (complete with screenshots). With that set up they get into the application - a simple Laravel-based setup that lets you connect to your account and get information like current file lists, user info and even upload new files. The tutorial includes all of the code for the controllers, models, views, routes, etc. you'll need to make it all work. There's even search functionality letting you look through current files/folders and locate certain items.

tagged: dropbox client api tutorial laravel application upload search list crud

Link: https://www.sitepoint.com/build-your-own-dropbox-client-with-the-dropbox-api/

TutsPlus.com:
How to Program With Yii2: Uploading Files
Jul 15, 2016 @ 12:15:45

On the TutsPlus.com site there's a new installment in their "How to Program With Yii2 Series" looking at implementing file uploads with some simple examples.

In this How to Program With Yii2 series, I'm guiding readers in use of the Yii2 Framework for PHP. In this tutorial, I'll guide you through the basics of uploading files and images in Yii2.

For these examples, we'll continue to imagine we're building a framework for posting simple status updates, e.g. our own mini-Twitter. The image above demonstrates writing a short update while uploading a picture I took of the Taj Mahal.

They start with a look at some of the file upload plugins that seemed like the best they found to use with Yii2: FileInput and the 2Amigos BlueImp File Uploader. They go with the first option for the rest of the tutorial, showing you how to get it installed (via Composer), updating your current database tables and changing the model to reflect these updates. Next they help you create the view with the image upload form and one to display the image result once the upload is successful (including the controller code needed).

tagged: yii2 framework series tutorial upload files plugin

Link: http://code.tutsplus.com/tutorials/how-to-program-with-yii2-uploading-files--cms-23511

Chris White:
Avoiding the burden of file uploads
Jun 14, 2016 @ 09:18:59

Chris White has a post to his site sharing a method he's come up with to avoid the burden of file uploads in your PHP application with the help of the offerings of Amazon S3 and some creative coding.

Handling file uploads sucks. Code-wise it's a fairly simple task, the files get sent along with a POST request and are available server-side in the $_FILES super global. Your framework of choice may even have a convenient way of dealing with these files, probably based on Symfony's UploadedFile class. Unfortunately it's not that simple.

[...] For most situations using S3 is a no brainer, but the majority of developers transfer their user's uploads to S3 after they have received them on the server side. This doesn't have to be the case, your user's web browser can send the file directly to an S3 bucket. You don't even have to open the bucket up to the public. Signed upload URLs with an expiry will allow temporary access to upload a single object.

He points out two advantages of this method: that you don't have to handle the upload part of file uploads and that it gives the user more control. He shares a video of the end result (a simple file upload frontend) and the code that you'll need to use the AWS PHP SDK to make it all work together. There's some configuration changes that'll need to be made on the S3 bucket side (like for CORS) but the code itself to make the connection is relatively simple. He does a great job of explaining every step of the way and includes the Javascript needed for the frontend as well.

tagged: file upload amazon s3 aws tutorial frontend

Link: https://cwhite.me/avoiding-the-burden-of-file-uploads/

Rob Allen:
PSR-7 file uploads in Slim 3
Feb 05, 2016 @ 11:08:23

In a post to his site Rob Allen explains how to handle file uploads in a PSR-7 structure, specifically illustrating with an example using the Slim (v3) framework.

Handling file uploads in Slim 3 is reasonably easy as it uses the PSR-7 Request object, so let's take a look.

He shows how to create a simple index route in a Slim application and render a view containing just a simple form with an upload field and submit button. When the form submits, he uses the getUploadedFiles method on the Slim Request object to get the file information for the upload. He also shows how to check for errors on the upload using the file data as an object and calling the getError method.

tagged: slim3 file upload tutorial handling error psr7 request

Link: https://akrabat.com/psr-7-file-uploads-in-slim-3/

SitePoint PHP Blog:
Liking, Watchlisting and Uploading through Vimeo’s API
Nov 26, 2015 @ 10:26:40

The SitePoint PHP blog continues their series looking at using the Vimeo API from PHP with the second part of their series, enhancing the previous functionality. In this new tutorial they show you how to hook in to the Vimeo API and "like" videos, add them to watchlists and even push them through as uploads.

In a previous post, we used the Vimeo API to build a rudimentary video application with Silex and Twig. We added login and user feed functionality and wrapped it all up with a video searching feature. In this one, we’ll add in liking a video, adding a video to a watchlist for later, and uploading videos via the Vimeo API.

You'll need to have the functionality from part one in place first. From there they take off running, showing you how to interact with videos to perform the "like" and "add to watchlist" actions. The interaction with the API is fired from Javascript on the page and passed through a backend script through to the API. They follow this with the handling for the uploads, using a standard file upload form for input with a few validations once submitted. The code then uses the library to pull in the contents of the file and push it through to the API.

tagged: vimeo api tutorial part2 series watchlist like upload video

Link: http://www.sitepoint.com/liking-watchlisting-and-uploading-through-vimeos-api/

SitePoint PHP Blog:
Commenting, Upvoting and Uploading Photos with the 500px API
Mar 10, 2015 @ 11:55:46

The SitePoint PHP blog continues their series creating a simple application based on the 500px service with part two, commenting, upvoting and uploading photos. The 500px service is a photo community for discovering, sharing, buying and selling inspiring photography powered by creative people worldwide.

In the first part of this series we used the API to get the latest photos from 500px and filter through them, and we built a user profile with the list of associated photos. In this part, we are going to give the user the ability to vote, favorite and comment on photos, and finally, we will give the users the ability to upload their own photos.

They start with a look at authentication and authorization handling to make the OAuth-based request to the 500px API. Code is included for the connecting class, including the addition of a logger to make debugging the requests simpler. From there they set up the routes for handling votes on photos (PHP and Javascript) and marking favorite photos. They also include the functionality for adding comments, getting the latest comments and uploading new photos to the service. The final resulting code can be found over on GitHub.

tagged: 500px tutorial api series part2 comment upvote upload photos

Link: http://www.sitepoint.com/commenting-upvoting-uploading-photos-500px-api/

SitePoint PHP Blog:
Adding Products to Your eBay Store with the Trading API
Jan 13, 2015 @ 12:50:14

The SitePoint blog has posted the next part of their "using the eBay trading API" series today (part three) showing you how to add products to your store via their API.

In this third and final part of our eBay Trading API series, we’ll be building the product adding functionality into our application. Now that we’re done with the store settings, we can begin with writing the code for the controller that would handle the creation of products.

He walks you through the code to create the "new" action on your Slim controller, build the view to gather the product information and handle the upload of product images with the Dropzone Javascript library. Also included is the code to get the current category list (to populate a dropdown list) and the code needed to create the product, both in your database and sending it back to the eBay API for insertion. This finishes the series about using this API, but you can get more information on the API itself though its documentation. The full code for the tutorial series is available on GitHub.

tagged: ebay trading api tutorial series part3 add product upload

Link: http://www.sitepoint.com/adding-products-ebay-store-trading-api/