Building a complete web service

The file_transfer project completes the file_transfer_stub project, by filling in the missing features.

The features were omitted in the previous project for the following reasons:

• To have a very simple service that actually does not really access the filesystem
• To have only synchronous processing
• To ignore any kind of failure, and keep the code simple

Here, these restrictions have been removed. First of all, let's see what happens if you compile and run the file_transfer project, and then test it using the same commands as in the previous section.

Downloading a file

Let's try the following steps on how to download a file:

1. Type the following command into the console:

curl -X GET http://localhost:8080/datafile.txt

2. If the download is successful, the server prints the following line to the console:

Downloading file "datafile.txt" ... Downloaded file "datafile.txt"

In the console of the client, curl prints the contents of...