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(Ruby) JSON Estimote Data

Demonstrates accessing some data from an Estimote REST API response. The Estimate REST API responds with a JSON array (i.e. something beginning with "[" and ending with "]"). To parse, this must be made into a JSON object by prepending "{"*":" and appending "}".

This example uses the following JSON object:

{"*":[{
        "id" : "B9407F30-F5F8-466E-AFF9-25556B57FE6D:28203:50324",
        "uuid" : "B9407F30-F5F8-466E-AFF9-25556B57FE6D",
        "major" : 28203,
        "minor" : 50324,
        "mac" : "dd6fc4946e2b",
        "settings" : {
            "battery" : 100,
            "interval" : 950,
            "hardware" : "D3.4",
            "firmware" : "A3.2.0",
            "basic_power_mode" : true,
            "smart_power_mode" : true,
            "timezone" : "America/Los_Angeles",
            "security" : false,
            "motion_detection" : true,
            "latitude": 37.7979,
            "longitude": -122.4408,
            "conditional_broadcasting" : "flip to stop",
            "broadcasting_scheme" : "estimote",
            "range" : -12,
            "power" : -12,
            "firmware_deprecated" : false,
            "firmware_newest" : true,
            "location" : null
        },
        "color" : "blueberry",
        "context_id" : 339488,
        "name" : "blueberry ibeacon1",
        "battery_life_expectancy_in_days" : 1377,
        "tags" : []
    }, {
        "id" : "B9407F30-F5F8-466E-AFF9-25556B57FE6D:25845:21739",
        "uuid" : "B9407F30-F5F8-466E-AFF9-25556B57FE6D",
        "major" : 25845,
        "minor" : 21739,
        "mac" : "ff5454eb64f5",
        "settings" : {
            "battery" : 100,
            "interval" : 950,
            "hardware" : "D3.4",
            "firmware" : "A3.2.0",
            "basic_power_mode" : false,
            "smart_power_mode" : true,
            "timezone" : "America/Los_Angeles",
            "security" : false,
            "motion_detection" : true,
            "conditional_broadcasting" : "flip to stop",
            "broadcasting_scheme" : "estimote",
            "range" : -12,
            "power" : -12,
            "firmware_deprecated" : false,
            "firmware_newest" : true,
            "location" : null
        },
        "color" : "blueberry",
        "context_id" : 339483,
        "name" : "blueberry2",
        "battery_life_expectancy_in_days" : 1168,
        "tags" : []
    }
]}

Chilkat Ruby Downloads

Ruby Library for Linux and MAC OS X

require 'chilkat'

json = Chilkat::CkJsonObject.new()
json.put_EmitCompact(false)

#  Assume the file contains the data as shown above..
success = json.LoadFile("qa_data/json/estimote.json")
if (success != true)
    print json.lastErrorText() + "\n";
    exit
end

#  To get the value for "settings.battery" for the 1st array object:
batteryVal = json.IntOf("*[0].settings.battery")
print "battery: " + batteryVal.to_s() + "\n";

#  To get the value for "settings.timezon" for the 1st array object:
timeZone = json.stringOf("*[0].settings.timezone")
print "timezone: " + timeZone + "\n";

#  To get the "settings.range" for the 2nd array object:
rangeVal = json.IntOf("*[1].settings.range")
print "range: " + rangeVal.to_s() + "\n";

#  To  get the "settings.longitude" for the 1st array object:
#  Note: Any primitie value can be retrieved as as string: integers, floating point numbers, booleans, etc.
longitudeStr = json.stringOf("*[0].settings.longitude")
print "longitude: " + longitudeStr + "\n";

 

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