Reading from a URL, and reading Json, from your Tcl script

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Reading from a URL, and reading Json, from your Tcl script

Archive - Originally posted on "The Horse's Mouth" - 2015-03-12 22:35:27 - Graham Ellis
You can read from a URL in Tcl using the http package ... for example

  package require http

  set handle [::http::geturl http://www.wellho.co.uk/robots.txt]

And you can then collect the data:
  set body [::http::data $handle]

and the http status code:
  set stat [::http::ncode $handle]

and the headers:
  set headers [::http::meta $handle]

See [here] for the complete source code and sample output. The http::configure command gives a wide variety of configuration options too.

A further example - [here] - picks up json data via http, and converts it into a Tcl structure which it then displays. Of course, once you have the data, you can do just about anything with it.