How to write string params for JSON in rails 4 -


how write strong params json, if have map model want save these records:

{ "map":[   {"lat": "51.088672", "lon": "71.396522", "vibration_level": "300", "time_sent": "07:25:00"},   {"lat": "51.088672", "lon": "71.396453", "vibration_level": "300", "time_sent": "07:25:01"},   {"lat": "51.088829", "lon": "71.396476", "vibration_level": "300", "time_sent": "07:25:14"}   ] }

i have tried that:

params.require(:map).permit(:lat, :lon, :vibration_level, :time_sent)  params.permit(map: [:lat, :lon, :vibration_level, :time_sent])  params.permit(map: [:lat, :lon, :vibration_level, :time_sent]).require(:maps)

try hope help.

before_action :parse_json_data_to_params, except: [ # put actions names here otherwise raise error requests ]  def parse_json_data_to_params   params.merge!(activesupport::json.decode(request.raw_post)) end

and in params permit method.

params.require(:map).permit(:lat, :lon, :vibration_level, :time_sent)

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