```ruby
require 'sinatra'
require 'mongo'
require 'mongo_mapper'
require 'pry'
require 'json/ext'

class Survey
  include MongoMapper::Document

  key :survey_id, Integer
  key :inputs, Array
end

class Submission
  include MongoMapper::Document

  key :survey_id, Integer
  key :answers, Array
end

class PTApi < Sinatra::Base

  configure do
    MongoMapper.connection = Mongo::Connection.new("localhost", 27017)
    MongoMapper.database = "pt-api"
  end

  get '/submissions' do
    content_type :json
    Submission.all.to_json
  end

  post '/submissions' do
    Submission.create(params[:submission])
  end

  get '/surveys' do
    content_type :json
    Survey.all.to_json
  end

  post '/surveys' do
    data = JSON.parse(request.body.read)
    binding.pry
    Survey.create(data)
  end

end```

Add route for single survey
user
```ruby
require 'sinatra'
require 'mongo'
require 'mongo_mapper'
require 'pry'
require 'json/ext'

class Survey
  include MongoMapper::Document

  key :survey_id, Integer
  key :inputs, Array
end

class Submission
  include MongoMapper::Document

  key :survey_id, Integer
  key :answers, Array
end

class PTApi < Sinatra::Base

  configure do
    MongoMapper.connection = Mongo::Connection.new("localhost", 27017)
    MongoMapper.database = "pt-api"
  end

  get '/submissions' do
    content_type :json
    Submission.all.to_json
  end

  post '/submissions' do
    Submission.create(params[:submission])
  end

  get '/surveys' do
    content_type :json
    Survey.all.to_json
  end

  get '/surveys/:id' do
    content_type :json
    Survey.first(_id: params[:id].to_i).to_json
  end

  post '/surveys' do
    data = JSON.parse(request.body.read)
    binding.pry
    Survey.create(data)
  end

end```
assistant