{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Using Twitcher Client"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# disable ssl warnings\n",
    "import urllib3\n",
    "urllib3.disable_warnings()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from twitcher.client import TwitcherService\n",
    "base_url = 'http://localhost:8000'\n",
    "twitcher = TwitcherService(base_url, username='demo', password='demo', verify=False)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Register Client APP"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "client = twitcher.add_client_app(name='test1', redirect_uri='http://demo/test1')\n",
    "client"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Register WPS service in Twitcher OWS Proxy"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "service = twitcher.register_service(name=\"emu_demo\", url=\"http://localhost:5000/wps\")\n",
    "service"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## WPS GetCapabilities request"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import requests\n",
    "\n",
    "url = \"{}/ows/proxy/emu_demo?service=WPS&request=GetCapabilities\".format(base_url)\n",
    "url"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "resp = requests.get(url, verify=False)\n",
    "resp.ok"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## WPS DescribeProcess request"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = \"{}/ows/proxy/emu_demo?service=WPS&version=1.0.0&request=DescribeProcess&identifier=hello\".format(base_url)\n",
    "url"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "resp = requests.get(url, verify=False)\n",
    "resp.ok"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## WPS Execute request ... restricted access"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = \"{}/ows/proxy/emu_demo?service=WPS&version=1.0.0&request=Execute&identifier=hello&DataInputs=name=Tux\".format(base_url)\n",
    "url"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "resp = requests.get(url, verify=False)\n",
    "resp.ok"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Access forbidden without access token."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "'AccessForbidden' in resp.text"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Get Access token for compute"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "compute_token = twitcher.fetch_token(client_id=client['client_id'], client_secret=client['client_secret'], scope='compute')\n",
    "compute_token"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Add access token to parameters"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = \"{}/ows/proxy/emu_demo?service=WPS&version=1.0.0&request=Execute&identifier=hello&DataInputs=name=Tux&access_token={}\".format(\n",
    "        base_url, compute_token['access_token'])\n",
    "url"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "resp = requests.get(url, verify=False)\n",
    "resp.ok"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "'Hello Tux' in resp.text"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "... or add access token to headers"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "headers = {'Authorization': 'Bearer {}'.format(compute_token['access_token'])}\n",
    "headers"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "resp = requests.get(\n",
    "    \"{}/ows/proxy/emu_demo?service=WPS&version=1.0.0&request=Execute&identifier=hello&DataInputs=name=Tux\".format(base_url),\n",
    "    headers=headers,\n",
    "    verify=False)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "'Hello Tux' in resp.text"
   ]
  }
 ],
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