I wanna process soap data in my rails app, requirements is like this: 3rd party app connect to my app and post the soap data using http protocol, then in my controller, my app has to parse these soap data, store them and then send the result to the requestor using soap format. Now the problem is I do not know how to deal these in my controller. Which gem shoud I used? wash_out or sovan?? Could someone give a detail example？ Thanks for helping.
I'm not a fan of using SOAP, but there are a lot of documentation on internet, like this
Basically you need to include the next code in your model
def initialize(zip)
client = Savon::Client.new("http://theserver.com?WSDL")
response = client.request :web, :info, body:{"foo" => foo}
if response.success?
#do code
end
end
This railscast haves a good explanation too.
Related
I am trying to fetch data from Twitter Streaming API in my rails app and i have created my own module which gives me twitter Authorization Head. I am able to get authorized but i am not getting the response back... all i see is the request in pending state (i am guessing as its streaming and connection not being closed). What can i do to my below code so that i can start printing the response as i get from Streaming API ?
class MainController < ApplicationController
include Oauth::Keys
def show
#oauth_signature_string = Oauth::Signature.generate(signature_params)
#header = Oauth::HeaderString.create(header_params)
RestClient::Request.execute(method: :GET, url: 'https://stream.twitter.com/1.1/statuses/sample.json', :headers => {:Authorization => %Q(OAuth ****************************)} )
end
end
Because Twitter is "streaming" the data and not closing the connection, your RestClient request is not being ended and your show action is hanging there and not "finishing". So, rails can't continue and render the default main/show.html.erb page.
So, you might want to look into ActionController::Streaming class and see if you can rewrite you views and HTTP call to utilize it. Or, it would be much easier to use a non-streaming API edge.
Also, what you are doing seems to be a better fit for javascript. You might want to use Twitter's official Javascript api to do all authentications and status streams.
I am trying to create an api to create record Foo using the rails-api gem.
I initially ran the generator command to tell rails to create a controller for me and it created this:
def create
#foo = Foo.new(foo_params)
#foo.save
respond_with(#foo)
end
And this (Strong params):
def foo_params
params.require(:foo).permit(:bar)
end
This is pretty standard stuff and will work when using form_for to submit data to the create method.
In my case, I'm creating a stand-alone API web service that will only interact via external API calls.
So the issue that I'm experiencing, is I don't know how to post the :bar param via API. I tried posting a :bar param, but this leads to a 'param is missing or the value is empty: foo' error. I understand why this is happening, but I have no idea how to get around this...
Is there a better way to do this or should I provide the api param in a different way?
PS. Currently my api POST call looks like this:
http://localhost:3000/api/v1/foo.json?bar=test#mail.com
you cannot use the ?+argument at the end of the url for a POST HTTP request, it's only for a GET request.
You must use the data component of the HTTP call, that is not embedded in the URL
therefore, you cannot just make this from your browser address bar and must use curl or a great tool as Postman (free on the chrome App Store)
and in this data field, you can include the object you want to post (postman gives you a neat key value interface to do so)
let me know if you need more details on the curl function for command line calls, but I recommend that you use a nice tool as Postman, so useful if you're not used to these calls
EDIT : this is the URL to get Postman : https://www.getpostman.com
I want to send request to some third party service in xml and also expecting response in xml. I'm searching for some gem or any idea how to do this.
Thing which is in my mind is to
make some partail _example.xml.builder
onclick from my view to some button send ajax request to controller action and use render_to_string to render that xml doc and then
Save it in some variable
and then call to that service method in same action
But it is not proper thing as I expect there should be some thing more efficient than my suggested thing
RoR doesn't natively use XML so some degree of conversion is required.
Having said that, XML generation is very simple in RoR applications. There are several ways of doing this, my favourite being constructing the required data as a Hash (which is native to Ruby) then the_hash.to_xml.
The XML conversion can also be defined in a model Class if you wish a consistent result:
class Example < ActiveRecord::Base
# ensure that only column1, column2, etc are output as XML
def to_xml(options = {})
super( options.merge( select(:column1, :column2, etc) ) )
end
end
Then in your controller:
poster = Example.find(123)
request = Net::HTTP.new('www.example.com', 80)
request.post('/path', poster.to_xml)
Hopefully the above demonstrates a simple example of posting XML data to a remote host. As you mentioned, a more complicated XML can be constructed using xml.builder
HTH and good luck.
I am using Ruby on Rails 3 and I am trying to implement APIs to retrieve account information from a web service. That is, I would like to connect to a web service that has the Account class and get information from the show action routed at the URI http://<site_name>/accounts/1.
At this time, in the web service accounts_controller.rb file I have:
class AccountsController < ApplicationController
def show
#account = Account.find(params[:id])
respond_to do |format|
format.html
format.js
format.json { render :json => #account.to_json }
end
end
end
Now I need some advice for connecting to the web service. In the client application, I should have a HTTP GET request, but here is my question: What is "the best" approach to connect to a web service making HTTP requests?
This code in the client application works:
url = URI.parse('http://<site_name>/accounts/1.json')
req = Net::HTTP::Get.new(url.path)
res = Net::HTTP.start(url.host, url.port) {|http|
http.request(req)
}
#output = JSON(res.body)["account"]
but, is the above code "the way" to implement APIs?
Is it advisable to use third-party plugins and gems?
Yes, since you're using RESTful routes, they are your basic API. You're also returning structured JSON data easily consumable by an application.
There are other ways to implement a web services API (e.g. SOAP), but this is a good and proper way.
Since it's a web services API, connecting to the correct URL and parsing the response is the way to go on the client side. Though if you need to access many different resources it might be a good idea to create a flexible way of building the request URL.
If you don't need low-level tweak-ability offered by Net::HTTP, instead take a look at using Open-URI, which comes with Ruby. It makes it easy to request a page and receive the body back. Open-URI doesn't have all the bells and whistles but for a lot of what I do it's plenty good.
A simple use looks like:
require 'open-uri'
body = open('http://www.example.com').read
The docs have many other examples.
These are other HTTP clients I like:
HTTPClient
Typhoeus
They are more tweakable and can handle multiple connections at once if that's what you need. For instance, Typhoeus has a suite of simplified calls, similar to Open-URI's. From the docs:
response = Typhoeus::Request.get("http://www.pauldix.net")
response = Typhoeus::Request.head("http://www.pauldix.net")
response = Typhoeus::Request.put("http://localhost:3000/posts/1", :body => "whoo, a body")
response = Typhoeus::Request.post("http://localhost:3000/posts", :params => {:title => "test post", :content => "this is my test"})
response = Typhoeus::Request.delete("http://localhost:3000/posts/1")
HTTPClient has similar shortened methods too.
I'd recommend using Rails' ActiveResource for most cases. Failing that, httparty.
I would use ActiveResource if you just need a simple way to pull in rest-based resources. It's already included in rails and pretty trivial to set up. You just specify a base url and resource name in your ActiveResource subclass and then you can CRUD rest-based resources with an interface similar to that of ActiveRecord.
rest-client is the most popular gem for easily connecting to RESTful web services
I think one of the best solutions out there is the Her gem. It encapsulates restful requests providing objects with active-record like behavior.
I want to access a URL of another website from one of my models, parse some information and send it back to my user. Is this possible?
For example, the user sends me an address through a POST, and I want to validate the information through a third party website (USPS or GMaps)
What methods would I use to create the request and parse the response?
This is not a redirect. I want to open a new request that is transparent from the client.
There are a lot of libraries to handle this such as:
HTTParty on http://github.com/jnunemaker/httparty
Curb on http://curb.rubyforge.org/
Patron on http://github.com/toland/patron
Example using Patron:
sess = Patron::Session.new
sess.timeout = 10
sess.base_url = "http://myserver.com:9900"
sess.headers['User-Agent'] = 'myapp/1.0'
resp = sess.get("/foo/bar")
if resp.status < 400
puts resp.body
end
Each solution has its own way of handling requests and parsing them as well as variations in their API. Look for what fits your needs the best.