{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {},
    "colab_type": "code",
    "id": "kl29WUo3W4D5"
   },
   "outputs": [],
   "source": [
    "import socket\n",
    "import threading\n",
    "import requests\n",
    "import json\n",
    "from flask import Flask, jsonify, request"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {
     "base_uri": "https://localhost:8080/",
     "height": 34
    },
    "colab_type": "code",
    "executionInfo": {
     "elapsed": 855,
     "status": "ok",
     "timestamp": 1574651075864,
     "user": {
      "displayName": "Anthony So",
      "photoUrl": "https://lh3.googleusercontent.com/a-/AAuE7mCYY-iGjUIqBSnlLoszfZTN7rU7FRNg05Rdt9Ii3A=s64",
      "userId": "11809607246124237079"
     },
     "user_tz": -660
    },
    "id": "jSL6D5Q7yxNq",
    "outputId": "e2f2aa1f-42b0-498a-a162-a7ab64e8eb02"
   },
   "outputs": [],
   "source": [
    "ip_address = socket.gethostbyname(socket.gethostname()) + ':8080'\n",
    "ip_address"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {},
    "colab_type": "code",
    "id": "pvYKOG2NzIEc"
   },
   "outputs": [],
   "source": [
    "app = Flask(__name__)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {},
    "colab_type": "code",
    "id": "IU_Q8MYzzPdK"
   },
   "outputs": [],
   "source": [
    "@app.route(\"/\")\n",
    "def welcome():\n",
    "    return \"Welcome to my API!\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {
     "base_uri": "https://localhost:8080/",
     "height": 34
    },
    "colab_type": "code",
    "executionInfo": {
     "elapsed": 846,
     "status": "ok",
     "timestamp": 1574651075866,
     "user": {
      "displayName": "Anthony So",
      "photoUrl": "https://lh3.googleusercontent.com/a-/AAuE7mCYY-iGjUIqBSnlLoszfZTN7rU7FRNg05Rdt9Ii3A=s64",
      "userId": "11809607246124237079"
     },
     "user_tz": -660
    },
    "id": "6iLQtxEEz6vK",
    "outputId": "a78173bf-b091-461d-8393-552b4bf94baf"
   },
   "outputs": [],
   "source": [
    "flask_thread = threading.Thread(target=app.run, kwargs={'host':'0.0.0.0','port':8080})\n",
    "flask_thread.start()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {
     "base_uri": "https://localhost:8080/",
     "height": 51
    },
    "colab_type": "code",
    "executionInfo": {
     "elapsed": 11711,
     "status": "ok",
     "timestamp": 1574651090661,
     "user": {
      "displayName": "Anthony So",
      "photoUrl": "https://lh3.googleusercontent.com/a-/AAuE7mCYY-iGjUIqBSnlLoszfZTN7rU7FRNg05Rdt9Ii3A=s64",
      "userId": "11809607246124237079"
     },
     "user_tz": -660
    },
    "id": "ooPSHPDO0C7f",
    "outputId": "8855b8b7-5c44-454f-eba1-6e5230157d57"
   },
   "outputs": [],
   "source": [
    "r = requests.get(f\"http://{ip_address}\")\n",
    "r.text"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {},
    "colab_type": "code",
    "id": "qrihpEDn0FRf"
   },
   "outputs": [],
   "source": [
    "@app.route('/empty', methods=['POST'])\n",
    "def check_empty():\n",
    "  data = request.get_json()\n",
    "  return jsonify(not data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {},
    "colab_type": "code",
    "id": "h6DSUEWD3CIL"
   },
   "outputs": [],
   "source": [
    "empty_json = json.dumps([])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {},
    "colab_type": "code",
    "id": "DgH1hJMD3m0v"
   },
   "outputs": [],
   "source": [
    "headers = {'content-type': 'application/json', 'Accept-Charset': 'UTF-8'}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {
     "base_uri": "https://localhost:8080/",
     "height": 51
    },
    "colab_type": "code",
    "executionInfo": {
     "elapsed": 821,
     "status": "ok",
     "timestamp": 1574651099539,
     "user": {
      "displayName": "Anthony So",
      "photoUrl": "https://lh3.googleusercontent.com/a-/AAuE7mCYY-iGjUIqBSnlLoszfZTN7rU7FRNg05Rdt9Ii3A=s64",
      "userId": "11809607246124237079"
     },
     "user_tz": -660
    },
    "id": "TqqJA5Un32sx",
    "outputId": "46ee7fe5-31c1-42c7-e8d1-6bedc673edfc"
   },
   "outputs": [],
   "source": [
    "r_empty = requests.post(f\"http://{ip_address}/empty\", data=empty_json, headers=headers)\n",
    "r_empty.text"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {},
    "colab_type": "code",
    "id": "M9J-lEDx4mOe"
   },
   "outputs": [],
   "source": [
    "not_empty_json = json.dumps(['Data Science', 'is', 'so', 'cool', '!'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "colab": {
     "base_uri": "https://localhost:8080/",
     "height": 51
    },
    "colab_type": "code",
    "executionInfo": {
     "elapsed": 715,
     "status": "ok",
     "timestamp": 1574651101516,
     "user": {
      "displayName": "Anthony So",
      "photoUrl": "https://lh3.googleusercontent.com/a-/AAuE7mCYY-iGjUIqBSnlLoszfZTN7rU7FRNg05Rdt9Ii3A=s64",
      "userId": "11809607246124237079"
     },
     "user_tz": -660
    },
    "id": "5LFjq2ON4k78",
    "outputId": "ab8fac96-e0be-4701-dd2a-fc465553c9ae"
   },
   "outputs": [],
   "source": [
    "r_not_empty = requests.post(f\"http://{ip_address}/empty\", data=not_empty_json, headers=headers)\n",
    "r_not_empty.text"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
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   "collapsed_sections": [],
   "name": "Exercise18_01.ipynb",
   "provenance": []
  },
  "kernelspec": {
   "display_name": "Python 3",
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  "language_info": {
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