{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2020-08-18T12:06:29.243603Z",
     "start_time": "2020-08-18T12:06:29.240780Z"
    }
   },
   "outputs": [],
   "source": [
    "import os\n",
    "from urllib.parse import parse_qs\n",
    "import IPython.display"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2020-08-18T12:06:29.250356Z",
     "start_time": "2020-08-18T12:06:29.246161Z"
    }
   },
   "outputs": [],
   "source": [
    "query_string = os.environ.get('QUERY_STRING', '')\n",
    "parameters = parse_qs(query_string)\n",
    "print(\"query string parameters:\", parameters)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2020-08-18T12:06:29.258506Z",
     "start_time": "2020-08-18T12:06:29.253815Z"
    }
   },
   "outputs": [],
   "source": [
    "# parameters is a dict of lists\n",
    "username = parameters.get('username', ['Kim'])[0]\n",
    "print(f'Hi {username}')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2020-08-18T12:06:29.275717Z",
     "start_time": "2020-08-18T12:06:29.261315Z"
    }
   },
   "outputs": [],
   "source": [
    "server = os.environ.get('SERVER_NAME', 'localhost') \n",
    "url = \"http://\" + server\n",
    "\n",
    "port = os.environ.get('SERVER_PORT', '')\n",
    "if port:\n",
    "    url += \":\" + port\n",
    "\n",
    "path = os.environ.get('SCRIPT_NAME', '')\n",
    "url += path\n",
    "\n",
    "                          \n",
    "IPython.display.HTML(data=f\"\"\"\n",
    "<a href=\"{url}?username=Riley\">Link to myself as user Riley</a>\n",
    "\"\"\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
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  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.7.3"
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 "nbformat": 4,
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