index.rb

require "sinatra"
require "sinatra/json"
require "erb"
require "json"

# in memory database but could replace this with sqlite
tasks_database = [
  {
    "id": 1,
    "name": "walk the dog",
    "date": "20/04/2020"
  },
  {
    "id": 2,
    "name": "get washing off the line",
    "date": "15/04/2020"
  }
] 

get "/task/:id" do
  id = params["id"].to_i - 1
  @task = tasks_database[id]
  @hi = "hi"
  erb :task
end

post "/task" do 
  task = JSON.parse(request.body.read)
  p task
  tasks_database << task
  return "task added"
end