CODEWITHSUNDEEP
rubyhttpnetwork-programmingnet-library
user483040
user483040

Reputation:

Ruby: Net::HTTP.start issue

I've got this code (roughly):

parsed_url = URI.parse(url_string)
puts "before Net::HTTP.start block"
response = Net::HTTP.start(parsed_url.host, parsed_url.port) { |http|
  puts "inside Net::HTTP.start block"
  http.read_timeout = 10
  http.get(parsed_url.path)
}

When I execute the code against a url that timesout in the browser, it never gets into the block. Any other situation it works perfectly. Is there some behavior on the start method that I don't see? I was assuming that the connection wouldn't be opened at all until the http.get(parsed_url.path) statement so I'm confused why this code more doesn't execute...

thanks in advance...

Upvotes: 1

Views: 2165

Answers (2)

Rodrigue
Rodrigue

Reputation: 3687

The documentation for the Net::HTTP class reads

Opens TCP connection and HTTP session.

So when you call Net::HTTP.start, the connection is made and if you cannot access the given URL, then a Timeout::Error is thrown inside the start method and the code inside your block is indeed never executed.

Upvotes: 1

Michael Kohl
Michael Kohl

Reputation: 66867

Net:HTTP.start calls do_start which then calls connect (both of them are private methods):

http://apidock.com/ruby/Net/HTTP/connect

The first 3 lines are

D "opening connection to #{conn_address()}..."
s = timeout(@open_timeout) { TCPSocket.open(conn_address(), conn_port()) }
D "opened"

and while I can't seem to find docs for the timeout method, this could be your culprit.

Upvotes: 1

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