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json_example.ipynb

{
 "cells": [
  {
   "cell_type": "code",
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   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "true"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# require the builtin gem\n",
    "\n",
    "require 'json'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[{\"yzpszuihiogiozhomoaa\"=>0}, {\"adxzrimwmsvxbqmqmijs\"=>1}, {\"jtdtopbmyiipueswtxgu\"=>2}, {\"rvsdfgygvredhocksdfe\"=>3}, {\"hnonsqfxxexezzfhdzwd\"=>4}, {\"drdpyxnqmqmvkxposusg\"=>5}, {\"mxpztndokhkccyumxact\"=>6}, {\"hkfmuvzscatklubgqjlv\"=>7}, {\"dxbykzidyqhofbjqliun\"=>8}, {\"eynvxsrfkmyasdixaddg\"=>9}]"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# create some fake data: an array of hashes\n",
    "\n",
    "data = 10.times.each_with_index.map do |i|\n",
    "  {20.times.map do\n",
    "    (\"a\"..\"z\").to_a.sample\n",
    "    end.join => i}\n",
    "end"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "\"[{\\\"yzpszuihiogiozhomoaa\\\":0},{\\\"adxzrimwmsvxbqmqmijs\\\":1},{\\\"jtdtopbmyiipueswtxgu\\\":2},{\\\"rvsdfgygvredhocksdfe\\\":3},{\\\"hnonsqfxxexezzfhdzwd\\\":4},{\\\"drdpyxnqmqmvkxposusg\\\":5},{\\\"mxpztndokhkccyumxact\\\":6},{\\\"hkfmuvzscatklubgqjlv\\\":7},{\\\"dxbykzidyqhofbjqliun\\\":8},{\\\"eynvxsrfkmyasdixaddg\\\":9}]\""
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# turn data into json string which is the same thing a lot of API's will return\n",
    "# in an HTTP response body\n",
    "\n",
    "json_data = data.to_json"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "String\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "String"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "p json_data.class"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[{\"yzpszuihiogiozhomoaa\"=>0}, {\"adxzrimwmsvxbqmqmijs\"=>1}, {\"jtdtopbmyiipueswtxgu\"=>2}, {\"rvsdfgygvredhocksdfe\"=>3}, {\"hnonsqfxxexezzfhdzwd\"=>4}, {\"drdpyxnqmqmvkxposusg\"=>5}, {\"mxpztndokhkccyumxact\"=>6}, {\"hkfmuvzscatklubgqjlv\"=>7}, {\"dxbykzidyqhofbjqliun\"=>8}, {\"eynvxsrfkmyasdixaddg\"=>9}]\n",
      "Array\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "Array"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# undo the process\n",
    "# this is what you do with the JSON string returned in\n",
    "# the body of an HTTP response\n",
    "\n",
    "converted_data = JSON.parse(json_data)\n",
    "p converted_data\n",
    "p converted_data.class"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Ruby 2.3.0",
   "language": "ruby",
   "name": "ruby"
  },
  "language_info": {
   "file_extension": ".rb",
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}

json_example.rb

# require the builtin gem

require 'json'

# create some fake data: an array of hashes

data = 10.times.each_with_index.map do |i|
  {20.times.map do
    ("a".."z").to_a.sample
    end.join => i}
end

# turn data into json string which is the same thing a lot of API's will return
# in an HTTP response body

json_data = data.to_json

p json_data.class

# undo the process
# this is what you do with the JSON string returned in
# the body of an HTTP response

converted_data = JSON.parse(json_data)
p converted_data
p converted_data.class

Untitled.txt