Flask FastCGI

How to Configure Apache Server

In the basic deployment configuration of Apache, our .fcgi will appear in the application URL, e.g., example.com/firstFastCGI.fcgi/hello/. There are multiple ways to change these primary deployment configurations. One of them is using the VirtualHost tag.

<VirtualHost *>
   ServerName example.com
   ScriptAlias / /path/to/firstFastCGI.fcgi/
</VirtualHost>

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Must Read Apache Server

How to Configure the Lighttpd Web Servers

The primary configurations for the Lighttpd server looks like,

fastcgi.server = ("/firstFastCGI.fcgi" => ((
   "socket" => "/tmp/firstFastCGI-fcgi.sock",
   "bin-path" => "/var/www/firstFastCGI/firstFastCGI.fcgi",
   "check-local" => "disable",
   "max-procs" => 1
)))
alias.url = (
   "/static/" => "/path/to/your/static"
)
url.rewrite-once = (
   "^(/static($|/.*))$" => "$1",
   "^(/.*)$" => "/firstFastCGI.fcgi$1"
)

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Advantages

The FastCGI interface brings together the best aspects of the CGI and the vendor APIs. Some of the advantages of using FastCGI are,

• It has a very high performance.
• It is very easy to migrate the code from CGI.
• Both FastCGI and CGI are language independent.
• FastCGI processes are always isolated, which means one faulty application will not affect any other application on the server.
• FastCGI is non-proprietary, which means all the Open Market server products support FastCGI.
• FastCGI provides the ability of distributed computing, and it can be managed remotely.
• The FastCGI interface is independent of any architecture and can be implemented by any webservers.

FAQs

1. What is CGI?
   CGI stands for Common Gateway Interface. It is a set of standards that are used to define guidelines for exchanging data between the Web Server and the Custom script. It is maintained by the NCSA(National Center for Supercomputing Applications).
    
2. What is FastCGI?
   FastCGI is a way to achieve CGI in Python. It is a deployment option for Flask applications on web servers like Nginx, Lighttpd, and Cherokee.
    
3. What is Lighttpd?
   lighttpd is an open-source web server optimized for high speed and performance environments. It is a very secure and flexible web server.
    
4. What is WSIGServer?
   WSGI or Web Server Gateway Interface is a simple convention to call the webservers. It calls the webserver to forward the requests to the application or the framework in Python.
    
5. What is the similarity between FastCGI and CGI?
   Like CGI, the FastCGI application also runs in separate and isolated processes, thus making each application independent of any other application running on the system. 

Key Takeaways

This Blog covered all the necessary points about FastCGI in Python, discussing in-depth its functionality and the methods of the appliance of FastCGI using Python, and also discussing its implementation.

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