새 함수를 만드는 경우 Cloud Run의
콘솔 빠른 시작을 참고하세요.
Memorystore for Redis
컬렉션을 사용해 정리하기
내 환경설정을 기준으로 콘텐츠를 저장하고 분류하세요.
관리형 Redis 인스턴스에 연결하는 Cloud 함수를 보여줍니다.
더 살펴보기
이 코드 샘플이 포함된 자세한 문서는 다음을 참조하세요.
코드 샘플
Go
Cloud Run Functions에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다.
자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
Node.js
Cloud Run Functions에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다.
자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
Python
Cloud Run Functions에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다.
자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
달리 명시되지 않는 한 이 페이지의 콘텐츠에는 Creative Commons Attribution 4.0 라이선스에 따라 라이선스가 부여되며, 코드 샘플에는 Apache 2.0 라이선스에 따라 라이선스가 부여됩니다. 자세한 내용은 Google Developers 사이트 정책을 참조하세요. 자바는 Oracle 및/또는 Oracle 계열사의 등록 상표입니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["이해하기 어려움","hardToUnderstand","thumb-down"],["잘못된 정보 또는 샘플 코드","incorrectInformationOrSampleCode","thumb-down"],["필요한 정보/샘플이 없음","missingTheInformationSamplesINeed","thumb-down"],["번역 문제","translationIssue","thumb-down"],["기타","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis content showcases how to implement a Cloud Function that connects to a managed Redis instance for tracking visit counts.\u003c/p\u003e\n"],["\u003cp\u003eThe code samples demonstrate implementations in Go, Node.js, and Python, each connecting to Redis and incrementing a visit counter.\u003c/p\u003e\n"],["\u003cp\u003eThe Cloud Function code samples are provided, including error handling and connection pooling in the Go example and a direct connection in both Node.js and Python.\u003c/p\u003e\n"],["\u003cp\u003eSetting up Application Default Credentials (ADC) is necessary to authenticate to Cloud Run functions, and detailed instructions on how to set up ADC for local development environments are linked in the content.\u003c/p\u003e\n"]]],[],null,["# Memorystore for Redis\n\nDemonstrates a Cloud Function that connects to a managed Redis instance.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Connecting to a Redis instance from Cloud Run functions](/memorystore/docs/redis/connect-redis-instance-functions)\n\nCode sample\n-----------\n\n### Go\n\n\nTo authenticate to Cloud Run functions, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n\n // Package visitcount provides a Cloud Function that connects\n // to a managed Redis instance.\n package visitcount\n\n import (\n \t\"errors\"\n \t\"fmt\"\n \t\"log\"\n \t\"net/http\"\n \t\"os\"\n\n \t\"github.com/GoogleCloudPlatform/functions-framework-go/functions\"\n \t\"github.com/gomodule/redigo/redis\"\n )\n\n var redisPool *redis.Pool\n\n func init() {\n \t// Register the HTTP handler with the Functions Framework\n \tfunctions.HTTP(\"VisitCount\", visitCount)\n }\n\n // initializeRedis initializes and returns a connection pool\n func initializeRedis() (*redis.Pool, error) {\n \tredisHost := os.Getenv(\"REDISHOST\")\n \tif redisHost == \"\" {\n \t\treturn nil, errors.New(\"REDISHOST must be set\")\n \t}\n \tredisPort := os.Getenv(\"REDISPORT\")\n \tif redisPort == \"\" {\n \t\treturn nil, errors.New(\"REDISPORT must be set\")\n \t}\n \tredisAddr := fmt.Sprintf(\"%s:%s\", redisHost, redisPort)\n\n \tconst maxConnections = 10\n \treturn &redis.Pool{\n \t\tMaxIdle: maxConnections,\n \t\tDial: func() (redis.Conn, error) {\n \t\t\tc, err := redis.Dial(\"tcp\", redisAddr)\n \t\t\tif err != nil {\n \t\t\t\treturn nil, fmt.Errorf(\"redis.Dial: %w\", err)\n \t\t\t}\n \t\t\treturn c, err\n \t\t},\n \t}, nil\n }\n\n // visitCount increments the visit count on the Redis instance\n // and prints the current count in the HTTP response.\n func visitCount(w http.ResponseWriter, r *http.Request) {\n \t// Initialize connection pool on first invocation\n \tif redisPool == nil {\n \t\t// Pre-declare err to avoid shadowing redisPool\n \t\tvar err error\n \t\tredisPool, err = initializeRedis()\n \t\tif err != nil {\n \t\t\tlog.Printf(\"initializeRedis: %v\", err)\n \t\t\thttp.Error(w, \"Error initializing connection pool\", http.StatusInternalServerError)\n \t\t\treturn\n \t\t}\n \t}\n\n \tconn := redisPool.Get()\n \tdefer conn.Close()\n\n \tcounter, err := redis.Int(conn.Do(\"INCR\", \"visits\"))\n \tif err != nil {\n \t\tlog.Printf(\"redis.Int: %v\", err)\n \t\thttp.Error(w, \"Error incrementing visit count\", http.StatusInternalServerError)\n \t\treturn\n \t}\n \tfmt.Fprintf(w, \"Visit count: %d\", counter)\n }\n\n### Node.js\n\n\nTo authenticate to Cloud Run functions, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n\n const functions = require('@google-cloud/functions-framework');\n const redis = require('redis');\n\n const REDISHOST = process.env.REDISHOST || 'localhost';\n const REDISPORT = process.env.REDISPORT || 6379;\n\n const redisClient = redis.createClient({\n socket: {\n host: REDISHOST,\n port: REDISPORT,\n },\n });\n redisClient.on('error', err =\u003e console.error('ERR:REDIS:', err));\n redisClient.connect();\n\n functions.http('visitCount', async (req, res) =\u003e {\n try {\n const response = await redisClient.incr('visits');\n res.writeHead(200, {'Content-Type': 'text/plain'});\n res.end(`Visit count: ${response}`);\n } catch (err) {\n console.log(err);\n res.status(500).send(err.message);\n }\n });\n\n### Python\n\n\nTo authenticate to Cloud Run functions, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n\n import os\n\n import functions_framework\n import redis\n\n redis_host = os.environ.get(\"REDISHOST\", \"localhost\")\n redis_port = int(os.environ.get(\"REDISPORT\", 6379))\n redis_client = redis.StrictRedis(host=redis_host, port=redis_port)\n\n\n @functions_framework.http\n def visit_count(request):\n value = redis_client.incr(\"visits\", 1)\n return f\"Visit count: {value}\"\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=functions)."]]