设置Rails以接收HTTP POST请求

Question

Is setting up Rails to receive a HTTP POST request that sends information encoded in JSON form as easy as adding the following code to the sessions_controller? Or are there other steps involved?

def create
    if user = User.authenticate(params["email"], params["password"])
    session[:user_id] = user.id
    render:json => "{\"r\": \"t\"}" + req
else
    render :json => "{\"r\": \"f\"}"
end
end

Answer 1

Should be that easy, though you will need to add a route to your routes.rb file as well specifying POST as the HTTP verb and pointing it to sessions#create . You also might want to use strong parameters just to validate what parameters are required and which you'll accept. As a heads up, I'm not entirely sure what "{\\"r\\": \\"t\\"}" + req is supposed to represent. It looks like req would be undefined in this case, but perhaps you're just omitting some code. Lastly, render :json => ... is sort of the old way of including a hash. I believe as of Ruby 2 the standard is something more like render json: ... . Hopefully that helps.