Two ways to get at the IO data creation API

streams-curl.sh

export API_KEY=
export USER=
export DATA_URL=https://io.adafruit.com/api/v2/$USER/feeds/test-feed/data

# accept system timestamp
curl -X POST -H 'Content-Type: application/json' -H "X-AIO-Key: $API_KEY" \
  -d '{"datum":{"value": "10"}}' \
  $DATA_URL

# single
curl -X POST -H 'Content-Type: application/json' -H "X-AIO-Key: $API_KEY" \
  -d '{"datum":{"created_at": "2016-12-31T12:00:00Z", "value": "0.0"}}' \
  $DATA_URL

# batch
curl -X POST -H 'Content-Type: application/json' -H "X-AIO-Key: $API_KEY" \
  -d '{"data":[{"created_at": "2017-01-01T12:00:00Z", "value": "1"},{"created_at": "2017-01-02T12:00:00Z", "value": "2"}]}' \
  $DATA_URL/batch

# but not the future
curl -X POST -H 'Content-Type: application/json' -H "X-AIO-Key: $API_KEY" \
  -d '{"datum":{"created_at": "2018-12-31T12:00:00Z", "value": "10"}}' \
  $DATA_URL

streams.rb

require 'httparty' # gem install httparty
#
# Usage:
#   KEY=$$$$ USER=$$$$ ruby streams.rb
#

KEY=ENV['KEY']
USER=ENV['USER']
URL='https://io.adafruit.com'

raise "KEY should be set" if KEY.nil?
raise "USER should be set" if USER.nil?

class StreamAPI
  include HTTParty
  base_uri URL
  
  def initialize
    @username = USER
    @options = { headers: { 'X-AIO-Key' => KEY } }
  end


  def data(feed, limit=25)
    self.class.get("/api/v2/#{ @username }/feeds/#{ feed }/data?limit=#{limit}", @options)
  end

  # add a single data point
  def add_datum(feed, datum)
    opts = @options.merge(query: { datum: datum })
    self.class.post("/api/v2/#{ @username }/feeds/#{ feed }/data", opts)
  end

  # add a collection of data points
  def add_data(feed, data)
    opts = @options.merge(query: { data: data })
    self.class.post("/api/v2/#{ @username }/feeds/#{ feed }/data/batch", opts)
  end
end

if __FILE__ == $0
  # For example...
  stream = StreamAPI.new

  # basic insert
  stream.add_datum('test-feed', {value: 1})

  # forced created timestamp
  stream.add_datum('test-feed', {created_at: '2017-02-01T00:00:00Z', value: 2})
  stream.add_datum('test-feed', {created_at: '2017-02-02T00:00:00Z', value: 3})
  stream.add_datum('test-feed', {created_at: '2017-02-03T00:00:00Z', value: 4})
  stream.add_datum('test-feed', {created_at: '2017-02-04T00:00:00Z', value: 5})

  # batch with forced timestamp
  stream.add_data('test-feed', [
    {created_at: '2017-02-05T00:00:00Z', value: 6},
    {created_at: '2017-02-06T00:00:00Z', value: 7},
    {created_at: '2017-02-07T00:00:00Z', value: 8},
    {created_at: '2017-02-08T00:00:00Z', value: 9},
    {created_at: '2017-02-09T00:00:00Z', value: 10},
    {created_at: '2017-02-10T00:00:00Z', value: 11},
    {created_at: '2017-02-11T00:00:00Z', value: 12},
    {created_at: '2017-02-12T00:00:00Z', value: 13},
    {created_at: '2017-02-13T00:00:00Z', value: 14}
  ])

  puts "Data:"
  puts stream.data('test-feed', 15).parsed_response
  puts "---------"
end