Rails%203%20In%20Action

The projects API
The before_save method here is run on a record whenever it is created or updated,
as opposed to the before_create callback that you saw back in chapter 10, which only
calls the specified method upon record creation.
With the callback to create the token in place, let’s jump back to your spec and
write a test to make a request with this token. Directly underneath the let(:user) in
spec/api/v1/projects_spec.rb, you’ll put the code from the following listing.
let(:token) { user.authentication_token }
before do
@project = Factory(:project)
user.permissions.create!(:action => "view", :thing => @project)
end
context "projects viewable by this user" do
let(:url) { "/api/v1/projects" }
it "json" do
get "#{url}.json"
projects_json = Project.for(user).all.to_json
last_response.body.should eql(projects_json)
last_response.status.should eql(200)
projects = JSON.parse(last_response.body)
projects.any? do |p|
p["project"]["name"] == "Ticketee"
end.should be_true
end
end
You’re using another let to define a token method that, when called, will return the
authentication_token for the current user. You’ll use this later for authenticating
requests for your API. The get method B you use here is provided by
Rack::Test::Methods and simply makes a GET request with the provided URL. You
put the URL in a let because you don’t want to repeat the URL too many times if you
have multiple tests, and the let stops you from repeating yourself in your code.
After the request is done in the test, you ensure that the last_response.status
returns 200, which is the HTTP status code for OK and means the request was successful.
The rest of this spec tests that the data contained within last_response.body contains
the appropriate data. This to_json method will take the attributes for each
project returned and turn them into JSON, resulting in an output such as
[
Listing 13.3 spec/api/v1/projects_spec.rb
{"project":
{
"created_at":"[timestamp]",
"id":1,
"name":"Ticketee",
"updated_at":"[timestamp]"
}
B GET request
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