1#@!#!123s

: / usr / share / doc / python3-redis / examples /
Filename : connection_examples.ipynb
back
{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Connection Examples"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Connecting to a default Redis instance, running locally."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import redis\n",
    "\n",
    "connection = redis.Redis()\n",
    "connection.ping()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### by default Redis return binary responses, to decode them use decode_responses=True"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import redis\n",
    "\n",
    "decoded_connection = redis.Redis(decode_responses=True)\n",
    "decoded_connection.ping()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Connecting to a redis instance, specifying a host and port with credentials."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import redis\n",
    "\n",
    "user_connection = redis.Redis(host='localhost', port=6380, username='dvora', password='redis', decode_responses=True)\n",
    "user_connection.ping()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Connecting to Redis instances by specifying a URL scheme.\n",
    "Parameters are passed to the following schems, as parameters to the url scheme.\n",
    "\n",
    "Three URL schemes are supported:\n",
    "\n",
    "- `redis://` creates a TCP socket connection. <https://www.iana.org/assignments/uri-schemes/prov/redis>\n",
    "- `rediss://` creates a SSL wrapped TCP socket connection. <https://www.iana.org/assignments/uri-schemes/prov/rediss>\n",
    "- ``unix://``: creates a Unix Domain Socket connection.\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "url_connection = redis.from_url(\"redis://localhost:6379?decode_responses=True&health_check_interval=2\")\n",
    "\n",
    "url_connection.ping()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Connecting to a Sentinel instance"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from redis.sentinel import Sentinel\n",
    "sentinel = Sentinel([('localhost', 26379)], socket_timeout=0.1)\n",
    "sentinel.discover_master(\"redis-py-test\")"
   ]
  }
 ],
 "metadata": {
  "interpreter": {
   "hash": "d45c99ba0feda92868abafa8257cbb4709c97f1a0b5dc62bbeebdf89d4fad7fe"
  },
  "kernelspec": {
   "display_name": "Python 3 (ipykernel)",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.8.12"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}