Im using Net::HTTP in my ruby code to make http requests. For example to make a post request i do
require 'net/http'
Net::HTTP.post_form(url,{'email' => email,'password' => password})
This works. But im unable to make a delete request, i.e.
require 'net/http'
Net::HTTP::Delete(url)
gives the following error
NoMethodError: undefined method `Delete' for Net::HTTP:Class
The documentation at http://ruby-doc.org/stdlib-1.9.3/libdoc/net/http/rdoc/Net/HTTP.html shows Delete is available. So why is it not working in my case ?
Thank You
The documentation tells you that Net::HTTP::Delete is a class, not a method.
Try Net::HTTP.new('www.server.com').delete('/path') instead.
uri = URI('http://localhost:8080/customer/johndoe')
http = Net::HTTP.new(uri.host, uri.port)
req = Net::HTTP::Delete.new(uri.path)
res = http.request(req)
puts "deleted #{res}"
Simple post and delete requests, see docs for more:
puts Net::HTTP.new("httpbin.org").post("/post", "a=1").body
puts Net::HTTP.new("httpbin.org").delete("/delete").body
This works for me:
uri = URI(YOUR_URL)
req = Net::HTTP::Delete.new(uri, {}) # params on second place
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
http.request req
end
Related
I am able to access api when try wit curl cmd, but same not able to access with net/http,
I did the string patch as per this link Preserving case in HTTP headers with Ruby's Net:HTTP and it was working well with ruby 2.2.4,
but recently we migrated to ruby 2.6.5 version, since then we are facing this issue again.
can anyone could help me with it.
sample code
token = JSON.parse(token_id)
request = Net::HTTP::Get.new(uri)
sso_token = token["headers"][0]["value"][0]
request[CaseSensitiveString.new('sso_token')] = sso_token
request["Accept"] = "application/json"
req_options = {
use_ssl: uri.scheme == "https"
}
response = Net::HTTP.start(uri.hostname, uri.port, req_options) do |http|
http.request(request)
end
response.code
response.body
class CaseSensitiveString < String
def downcase
self
end
def capitalize
self
end
end
Sorry, I needed to patch net/http as we have large existing project and its working with below code for ruby 2.5 and above
module Net::HTTPHeader
def capitalize(name)
name
end
private :capitalize
end
I am trying to hit a URL in Ruby with the following code:
begin
Net::HTTP.start(uri.host, uri.port, :read_timeout=>5) do |http|
request = Net::HTTP::Get.new uri.request_uri
#response = http.request request
#responsecode = #response.code.to_i
end
rescue Exception => e
::NewRelic::Agent.notice_error(e)
end
The problem I am having is that the URL is hit twice.I don't know why is this happening.Any help is appreciated.If I remove the :read_timeout, it works fine.
EDIT:
The problem I found is if service takes longer than read_timeout to respond, it is hit again.
I am trying to download a binary file via HTTP using the following Ruby script.
#!/usr/bin/env ruby
require 'net/http'
require 'uri'
def http_download(resource, filename, debug = false)
uri = URI.parse(resource)
puts "Starting HTTP download for: #{uri}"
http_object = Net::HTTP.new(uri.host, uri.port)
http_object.use_ssl = true if uri.scheme == 'https'
begin
http_object.start do |http|
request = Net::HTTP::Get.new uri.request_uri
Net::HTTP.get_print(uri) if debug
http.read_timeout = 500
http.request request do |response|
open filename, 'w' do |io|
response.read_body do |chunk|
io.write chunk
end
end
end
end
rescue Exception => e
puts "=> Exception: '#{e}'. Skipping download."
return
end
puts "Stored download as #{filename}."
end
However it downloads the HTML source instead of the binary. When I enter the URL in the browser the binary file is downloaded. Here is a URL with which the script fails:
http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadID=2175&downloadTYPE=KML
I execute the script as follows
pry> require 'myscript'
pry> resource = "http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadID=2175&downloadTYPE=KML"
pry> http_download(resource,"StreetTreePt.KML", true)
How can I download the binary?
Redirection experiments
I found this redirection check which looks quite reasonable. When I integrate in the response block it fails with the following error:
Exception: 'undefined method `host' for "save_download.asp?filename=StreetTreePt.KML":String'. Skipping download.
The exception does not occur in the "original" function posted above.
The documentation for Net::HTTP shows how to handle redirects:
Following Redirection
Each Net::HTTPResponse object belongs to a class for its response code.
For example, all 2XX responses are instances of a Net::HTTPSuccess subclass, a 3XX response is an instance of a Net::HTTPRedirection subclass and a 200 response is an instance of the Net::HTTPOK class. For details of response classes, see the section “HTTP Response Classes” below.
Using a case statement you can handle various types of responses properly:
def fetch(uri_str, limit = 10)
# You should choose a better exception.
raise ArgumentError, 'too many HTTP redirects' if limit == 0
response = Net::HTTP.get_response(URI(uri_str))
case response
when Net::HTTPSuccess then
response
when Net::HTTPRedirection then
location = response['location']
warn "redirected to #{location}"
fetch(location, limit - 1)
else
response.value
end
end
print fetch('http://www.ruby-lang.org')
Or, you can use Ruby's OpenURI, which handles it automatically. Or, the Curb gem will do it. Probably Typhoeus and HTTPClient too.
According to the code you show in your question, the exception you are getting can only come from:
http_object = Net::HTTP.new(uri.host, uri.port)
which is hardly likely since uri is a URI object. You need to show the complete code if you want help with that problem.
I'm trying to simply escape an URL with spaces and then do a GET request to that URL in Ruby.
The error I have is
/Users/user/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/net/http.rb:393:in `get_response': undefined method `host' for "http://google.com/?this%20is%20a%20stromg%20with%20spaces":String (NoMethodError)
from test_url.rb:6:in `<main>'
This is the current code
require 'rubygems'
require 'net/http'
uri = URI.escape("http://google.com/?this is a string with spaces")
res = Net::HTTP.get_response(uri)
puts res.body if res.is_a?(Net::HTTPSuccess)
Net::HTTP.start(uri.host, uri.port) do |http|
request = Net::HTTP::Get.new uri.request_uri
response = http.request request # Net::HTTPResponse object
end
URI.escape just escapes it, and nothing else. You need an actual instance of a URI to pass to get_response:
uri = URI.parse(URI.escape("http://google.com/?this is a string with spaces"))
Could someone tell me how I can fetch (GET) a URL (with params) using Ruby? I found a bunch of examples online but I couldn't find one that explained how I can also pass the parameters.
require 'net/http'
require 'uri'
uri = URI.parse("http://www.example.com/?test=1")
response = Net::HTTP.get_response uri
p response.body
There are also some other good HTTP clients or wrappers, such as HTTParty.
require 'rubygems'
require 'httparty'
response = HTTParty.get("http://www.example.com/?test=1")
p response.body
I use something like the following, it's pretty simple and doesn't make you build your own query string:
require 'net/http'
response = nil
Net::HTTP.start "example.com", 80 do |http|
request = Net::HTTP::Get.new "/endpoint"
request.form_data = {:q => "123"}
response = http.request(request)
end
I missed this one. The solutions are here.
Parametrized get request in Ruby?