computing Computing is any goal-oriented activity requiring, benefiting from, or creating computing machinery. It includes the study and experimentation of algorithmic processes, and development of both hardware and software. Computing has scientific, ...

, server application programming interface (SAPI) is the direct module interface to

web server A web server is computer software and underlying hardware that accepts requests via HTTP (the network protocol created to distribute web content) or its secure variant HTTPS. A user agent, commonly a web browser or web crawler, initia ...

s such as the

Apache HTTP Server The Apache HTTP Server ( ) is a free and open-source cross-platform web server software, released under the terms of Apache License 2.0. Apache is developed and maintained by an open community of developers under the auspices of the Apache S ...

Microsoft IIS Internet Information Services (IIS-pronounced 2S, formerly Internet Information Server) is an extensible web server software created by Microsoft for use with the Windows NT family. IIS supports HTTP, HTTP/2, HTTPS, FTP, FTPS, SMTP and N ...

, and

Oracle iPlanet Web Server Oracle iPlanet Web Server (OiWS) is a web server designed for medium and large business applications. Previous versions were marketed as Netscape Enterprise Server, iPlanet Web Server, Sun ONE Web Server, and Sun Java System Web Server. Oracle ...

Microsoft Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washi ...

uses the term

Internet Server Application Programming Interface The Internet Server Application Programming Interface (ISAPI) is an N-tier API of Internet Information Services (IIS), Microsoft's collection of Windows-based web server services. The most prominent application of IIS and ISAPI is Microsoft's ...

(ISAPI), and the defunct

Netscape Netscape Communications Corporation (originally Mosaic Communications Corporation) was an American independent computer services company with headquarters in Mountain View, California and then Dulles, Virginia. Its Netscape web browser was on ...

web server used the term Netscape Server Application Programming Interface (NSAPI) for the same purpose. In other words, SAPI is an

application programming interface An application programming interface (API) is a way for two or more computer programs to communicate with each other. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how ...

(API) provided by the web server to help other developers in extending the web server capabilities. As an example, PHP has a direct module interface called SAPI for different web servers; in the case of PHP 5 and Apache 2.0 on Windows, it is provided in the form of a DLL file called , which is a module that, among other functions, provides an interface between PHP and the web server, implemented in a form that the server understands. This form is what is known as a SAPI. Different kinds of SAPIs exist for various web-server extensions. For example, in addition to those listed above, other SAPIs for the PHP language include the

Common Gateway Interface In computing, Common Gateway Interface (CGI) is an interface specification that enables web servers to execute an external program, typically to process user requests. Such programs are often written in a scripting language and are commonly r ...

(CGI) and

command-line interface A command-line interpreter or command-line processor uses a command-line interface (CLI) to receive commands from a user in the form of lines of text. This provides a means of setting parameters for the environment, invoking executables and pro ...

(CLI).

References

External links

Developing modules for the Apache HTTP Server 2.4
Application programming interfaces {{Compu-prog-stub

See also

References

External links