Post with params in Phoenix (with no Ecto)? - api

Question

I'm trying to create a REST API using Phoenix with no Ecto or brunch.
What's the syntax for creating a post function in the router/controller with parameters, but not using Ecto?
For example in Ruby/Sinatra it would look something like this:
post "/v1/ipf" do
#weight1 = params[:weight1]
#weight2 = params[:weight2]
#weight3 = params[:weight3]
#weight4 = params[:weight4]
#goal1_percent = params[:goal1_percent]
#goal2_percent = params[:goal2_percent]
# etc...
end
Update
Based on Nick's answer, here's what I ended up with:
rest_api/web/router.ex:
defmodule RestApi.Router do
use RestApi.Web, :router
pipeline :api do
plug :accepts, ["json"]
end
scope "/", RestApi do
pipe_through :api
scope "/v1", V1, as: :v1 do
get "/ipf", IPFController, :ipf
end
end
end
rest_api/web/controllers/v1/ipf_controller.ex:
defmodule RestApi.V1.IPFController do
use RestApi.Web, :controller
import IPF
def ipf(conn, params) do
{weight1, _} = Integer.parse(params["weight1"])
{weight2, _} = Integer.parse(params["weight2"])
{weight3, _} = Integer.parse(params["weight3"])
{weight4, _} = Integer.parse(params["weight4"])
{goal1_percent, _} = Float.parse(params["goal1_percent"])
{goal2_percent, _} = Float.parse(params["goal2_percent"])
results = IPF.ipf(weight1, weight2, weight3, weight4, goal1_percent, goal2_percent)
render conn, results: results
end
end
rest_api/web/views/v1/ipf_view.ex:
defmodule RestApi.V1.IPFView do
use RestApi.Web, :view
def render("ipf.json", %{results: results}) do
results
end
end

Answer 1

Ecto and Brunch don't really have anything to do w/Phoenix handling a POST. Brunch is a web asset build tool, and Ecto is a database layer.
To add this new route, you just need to add an entry in the router for the new route:
post "/v1/spf", SPFController, :spf
And then create the controller:
defmodule MyModule.SPFController do
def spf(conn, params) do
# do whatever
end
end
That's it.