Wapp

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Comment:Add the forgotten helloworld.md documentation file.
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SHA3-256: 5f79eb875fb9b68e660e54a09634acedbb19a0d4da2a63edc6a4ffcd94cbd7d1
User & Date: drh 2019-03-08 00:08:05
Context
2019-04-01
00:53
Improved SCGI security: (1) The --scgi option only listens on IP address 127.0.0.1. The new --remote-scgi option must be used if the webserver is on a different machine. (2) The new --fromip option can be used to restrict incoming requests to a particular IP address. (3) In SCGI mode, the new parameter "SERVER_ADDR" contains the IP address of the webserver that originated the SCGI request. check-in: fb5eafae32 user: drh tags: trunk
2019-03-08
00:08
Add the forgotten helloworld.md documentation file. check-in: 5f79eb875f user: drh tags: trunk
2019-03-07
14:49
More documentation improvements. check-in: 984d973c34 user: drh tags: trunk
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Hello World
===========

Here is a "Hello, World!" web application written using Wapp:

>
    #!/usr/bin/tclsh
    package require wapp
    proc wapp-default {} {
      wapp-subst {<h1>Hello, World!</h1>\n}
    }
    wapp-start $argv

To run this application using the built-in web-server, store the code above
in a file (here we use the name "hello.tcl") and do:

>
    tclsh hello.tcl

To run the app using the built-in web-server bound to all TCP addresses
and listening on port 8080, use:

>
    tclsh hello.tcl --server 8080

To run the app as an SCGI server listening on port 9001:

>
    tclsh hello.tcl --scgi 9001

To run the application as CGI, make the hello.tcl file executable and
move it into the appropriate directory of the web server.

Further Information
-------------------

  *  [Introduction To Writing Wapp Applications](/doc/trunk/docs/intro.md)
  *  [Quick Reference](/doc/trunk/docs/quickref.md)
  *  [Wapp Parameters](/doc/trunk/docs/params.md)
  *  [Wapp Commands](/doc/trunk/docs/commands.md)
  *  [URL Mapping](/doc/trunk/docs/urlmapping.md)
  *  [Security Features](/doc/trunk/docs/security.md)
  *  [How To Compile wapptclsh - Or Not](/doc/trunk/docs/compiling.md)
  *  [Limitations of Wapp](/doc/trunk/docs/limitations.md)
  *  [Example Applications](/file/examples)
  *  [Real-World Uses Of Wapp](/doc/trunk/docs/usageexamples.md)
  *  [Debugging Hints](/doc/trunk/docs/debughints.md)