A hello-world application to demostrate the eve framework.
This is a simple "Hello World" web service that is intended to be used with a PSGI server. It sets up a simple controller that shows a page with the "Hello, World!" text.
Instructions are only available for nginx and Plack so far, if you have any questions about using this code with other software, feel free to contact me.
Setting up the daemon
First make sure you have all the prerequisites installed for eve, as well as for running a FCGI daemon on perl. For instance, to successfully run a daemon with plackup on Ubuntu you have to install the following packages:
sudo apt-get install libplack-perl libfcgi-perl libfcgi-procmanager-perl
After that you are ready to go. Change to the folder you have cloned this repo into and run the daemon:
plackup -I /var/www/path/to/eve/lib -s FCGI --listen /tmp/fcgi.socket bin/http.psgi
Note that if you have eve installed and have its lib folder already in the perl path, you don't need to set the -I parameter
After running this command you should have a daemon ready to be plugged into nginx. If something goes wrong, check out the Troubleshooting section below.
Setting up nginx
To make nginx forward all requests to this daemon, add this server directive to its configuration:
server {
server_name localhost;
listen 127.0.0.1;
location / {
fastcgi_pass unix:/tmp/fcgi.socket;
fastcgi_param SERVER_NAME localhost;
fastcgi_param SERVER_PORT 80;
fastcgi_param SCRIPT_NAME /tmp$fastcgi_script_name;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
}
}
Please note: this test example relies on the SCRIPT_NAME parameter being prefixed with the /tmp string. This is due to nginx restricting this variable's value so that it can not be empty (root folder). This is why you can see in the http.psgi that the first four characters of this value are being cut out. If you have a better solution in mind, please tell me, or better yet - fork and fix it. I will gladly accept any help!
Check if everything is OK and restart nginx:
sudo /etc/init.d/nginx configtest && sudo /etc/init.d/nginx restart
Now if everything's fine, you should see the "Hello, World!" page at your http://localhost.
If your daemon doesn't start check the error output. When there's something wrong with eve or path to eve it will usually say something like this:
Error while loading bin/http.psgi: Can't locate Eve/Registry.pm
Check that eve's lib folder is in your perl path or just specify it explicitly with an -I switch to plackup.