An application that uploads a local folder and its contents to a users' put.io account.

At first I decided to develop a web application where the files are provided through html forms. Then I thought that it would be less efficient considering Docker. I am confused, I thought, if it's a web application and it should let users to choose the files they want, and since the app is going to be containerized, I couldn't find a way to carry folders to docker container and reach them with the code. So, I just write a simple program. It uses the default folder provided by the put.io called images unless it's specified by the user within command line. Folder and its content is also stored inside docker container. Hence, the binary of the application can reach the folder and its content.

I utilized the concurrency using goroutines with worker pool concept. A fixed number of worker goroutines are started. The work distributed according to the files that are read. I wasn't sure about the number of workers to run and I did check the put.io's API documentation but could not find anything related to how many concurrent API operations does it reasonably expected to support. Hence, I decided to use 20 workers.

I did write the dockerfile as multi-stage to reduce the image size. With the second alpine image it significantly reduced the size of the image from ~1.5GB to ~370MB.

I did not upload the images folder to GitHub, since, it will take too much time to upload and download. It should be copied under the root directory.

• The files are regular files considering the folde provided by put.io.
• The files' size is less than 150MB.

• Go

  I did use the programming language called Go. Right now, Go is the most comfortable programming language to write code with for me.

• Goland

  I used Goland as an IDE for the application, since, it provides many features and has an ergonomic environment for Golang.

• Docker

  Docker is used to containerize the Go application and runs it everywhere due to its operating system level virtualization.

• Put.io API

  The API is used to access put.io's functionalities.

• Oauth2

  Oauth2 is utilized to make authorized and authenticated HTTP requests along with the user's token.

1. Clone the repository into your local environment

git clone https://github.com/bariis/file-uploader.git
cd file-uploader

2. image folde provided by put.io should be copied inside the directory. The structure of the directory should be as below image.

3. Build the docker image based on dockerfile.

docker build -t file-uploader .

4. Run the image as a container

• Token should be provided by the user.

docker run -it --rm file-uploader -token={$token}