NoMethodError (undefined method `permit' for "note_id":String): - api

Question

I'm having issues with an API in Rails4/mongoid application. I need to manipulate the data with a python 3 script through an API but I'm getting
NoMethodError (undefined method `permit' for "note_id":String):
error when I try to submit the request.
My python codes looks like this
import requests
import json
url = 'http://0.0.0.0:3000/api/v1/note_proc_logs.json'
payload = {'note_proc_log' : { 'note_id' : '120904'}}
head = {"Authorization":"Token token=xxxxxxxxxxxxxxxxxxx"}
r = requests.post(url, payload, headers=head)
The API controler
module Api
module V1
# This class does not inherit from ApplicationController like the rest to skip Devise authentication
class NoteProcLogsController < ActionController::Base
before_filter :restrict_access if Rails.env.development? == false
respond_to :json
def create
Rails.logger.warn "note_proc_log_params: #{params}" if Rails.env.development?
#note_proc_log = NoteProcLog.new(note_proc_log_params)
respond_to do |format|
if #note_proc_log.save
format.json { render :show, status: :created, location: #note_proc_log }
else
format.json { render json: #note_proc_log.errors, status: :unprocessable_entity }
end
end
end
private
def restrict_access
authenticate_or_request_with_http_token do |token, options|
ApiKey.where(access_token: token).exists?
end
end
# Never trust parameters from the scary internet, only allow the white list through.
def note_proc_log_params
params.require(:note_proc_log).permit(:note_id)
end
end
end
end
I saw few question with the same error but couldn't find a solution to my problem.
Any help would be greatly appreciated.
UPDATE:
Rails.logger.warn "note_proc_log_params: #{params}" if Rails.env.development?
gives me
W, [2016-07-25T15:10:38.362848 #48352] WARN -- : params: {"note_proc_log"=>"note_id", "format"=>"json", "controller"=>"api/v1/note_proc_logs", "action"=>"create"}

Answer 1

The problem was in the python script. A simple python dictionary is ok as payload but nested ones appear not to be.
My final python script look like this
import requests
import json
url = 'http://0.0.0.0:3000/api/v1/note_proc_logs.json'
payload='note_proc_log[chip_id]=120904&note_proc_log[test_timestamp]=2016-07-19T13:24:49'
head = {"Authorization":"Token token=xxxxxxxxxxxxxxxxxxxx"}
r = requests.post(url=url, data=payload, headers=head)
On Rails side everything will be treated as string so no need for adding additional quotation marks, even for strings with spaces, parent attribute has to be specified for each child attribute and elements separated with &.
This is what works for me, it would be interesting to know if there are other/better ways to do it, in particular how to include an Array of values.