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Using http client library to retreive a web page
Network Lua. example from a Well House Consultants training course
More on Network Lua. [link] Source code: autobrowser Module: U116
--[[ Using http client library from LuaServer (q.v.) to pull back web pages. First format is more flexible, second format is quick and cheerful ]] http = require ("socket.http") ltn12 = require("ltn12") print ("\n============ First page ===========") status = http.request{ url="http://192.168.200.67/index.html", sink = ltn12.sink.file(io.open("demo.txt","w")) } print (status) print ("\n============ Second page ===========") page, status, auth = http.request("http://192.168.200.67/robots.txt") print (page) print (status) --[[ ------------- Sample Output --------------- [trainee@easterton u116]$ lua autobrowser ============ First page =========== 1 ============ Second page =========== # # robots.txt file for www.wellho.net and www.wellho.co.uk # # we encourage robots to visit and index all documents # but not any executable scripts. # # Most recent update - January 2005 # Do not index unique.html if you find it; it's a file of # words that occur only once on the site and may be typos # User-agent: * Disallow: /cgi-bin/ Disallow: /net/unique.html 200 [trainee@easterton u116]$ ]] Learn about this subject
This module and example are covered on the following public courses:
* Learning to program in Lua * Lua Programming * Lua Programming Also available on on site courses for larger groups Books covering this topic
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