이 튜토리얼에서는 Go 런타임을 사용하여 Cloud Run 함수를 작성하는 과정을 설명합니다. Cloud Run 함수에는 다음과 같은 두 가지 유형이 있습니다.
표준 HTTP 요청에서 호출하는 HTTP 함수
Pub/Sub 주제의 메시지 또는 Cloud Storage 버킷의 변경사항과 같이 클라우드 인프라의 이벤트를 처리하는 데 사용되는 이벤트 기반 함수
이 샘플은 간단한 HTTP 함수를 만드는 방법을 보여줍니다.
시작하기 전에
Sign in to your Google Cloud account. If you're new to
Google Cloud,
create an account to evaluate how our products perform in
real-world scenarios. New customers also get $300 in free credits to
run, test, and deploy workloads.
In the Google Cloud console, on the project selector page,
select or create a Google Cloud project.
mkdir %HOMEPATH%\helloworld
cd %HOMEPATH%\helloworld
다음 콘텐츠로 helloworld 디렉터리에 hello_http.go라는 파일을 만듭니다.
// Package helloworld provides a set of Cloud Functions samples.packagehelloworldimport("encoding/json""fmt""html""net/http""github.com/GoogleCloudPlatform/functions-framework-go/functions")funcinit(){functions.HTTP("HelloHTTP",HelloHTTP)}// HelloHTTP is an HTTP Cloud Function with a request parameter.funcHelloHTTP(whttp.ResponseWriter,r*http.Request){vardstruct{Namestring`json:"name"`}iferr:=json.NewDecoder(r.Body).Decode(&d);err!=nil{fmt.Fprint(w,"Hello, World!")return}ifd.Name==""{fmt.Fprint(w,"Hello, World!")return}fmt.Fprintf(w,"Hello, %s!",html.EscapeString(d.Name))}
이 함수 예시는 HTTP 요청에 제공된 이름을 사용하여 인사말을 반환합니다. 제공된 이름이 없으면 'Hello, World!'를 반환합니다.
종속 항목 지정
이 예시 함수는 Go 표준 라이브러리 패키지만 사용하므로 패키지를 가져오는 것 이상의 종속 항목을 선언할 필요가 없습니다.
표준 라이브러리 이외의 종속 항목이 필요한 함수의 경우 go.mod 파일 또는 vendor 디렉터리를 통해 종속 항목을 제공해야 합니다. 자세한 내용은 Go에서 종속 항목 지정을 참조하세요.
함수 배포하기
HTTP 트리거를 사용하여 함수를 배포하려면 helloworld 디렉터리에서 다음 명령어를 실행하여 사용 중인 버전에 따라 go113 또는 go111을 --runtime 플래그의 값으로 지정합니다.
[[["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"]],["최종 업데이트: 2025-09-03(UTC)"],[[["\u003cp\u003eThis guide explains how to create and deploy an HTTP Cloud Run function using the Go programming language.\u003c/p\u003e\n"],["\u003cp\u003eThe process involves setting up your development environment, including installing the gcloud CLI and preparing the Go environment.\u003c/p\u003e\n"],["\u003cp\u003eYou'll create a simple HTTP function in a \u003ccode\u003ehello_http.go\u003c/code\u003e file, which takes an optional name parameter in the HTTP request and returns a greeting.\u003c/p\u003e\n"],["\u003cp\u003eDeploy the function using the \u003ccode\u003egcloud functions deploy\u003c/code\u003e command with the appropriate runtime and trigger settings, and it can be set to be accessible without authentication.\u003c/p\u003e\n"],["\u003cp\u003eYou can test the deployed function by visiting its URL in a browser or using \u003ccode\u003ecurl\u003c/code\u003e, and you can view function logs using the gcloud CLI or the Cloud Logging UI.\u003c/p\u003e\n"]]],[],null,["# Quickstart: Create and deploy an HTTP Cloud Run function by using Go\n\nCreate and deploy an HTTP Cloud Run function\nby using Go (1st gen)\n==================================================================\n\nThis guide takes you through the process of writing a Cloud Run function\nusing the Go runtime. There are two types of Cloud Run functions:\n\n- An HTTP function, which you invoke from standard HTTP requests.\n- An event-driven function, which you use to handle events from your Cloud infrastructure, such as messages on a Pub/Sub topic, or changes in a Cloud Storage bucket.\n\nThe sample shows how to create a simple HTTP function.\n| **Learn more** : For more details, read about [HTTP functions](/functions/1stgendocs/writing/write-http-functions) and [event-driven functions](/functions/1stgendocs/writing/write-event-driven-functions).\n\nBefore you begin\n----------------\n\n- Sign in to your Google Cloud account. If you're new to Google Cloud, [create an account](https://console.cloud.google.com/freetrial) to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Cloud Functions and Cloud Build APIs.\n\n\n [Enable the APIs](https://console.cloud.google.com/flows/enableapi?apiid=cloudfunctions,cloudbuild.googleapis.com&redirect=https://cloud.google.com/functions/1stgendocs/create-deploy-http-go-1st-gen)\n\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Cloud Functions and Cloud Build APIs.\n\n\n [Enable the APIs](https://console.cloud.google.com/flows/enableapi?apiid=cloudfunctions,cloudbuild.googleapis.com&redirect=https://cloud.google.com/functions/1stgendocs/create-deploy-http-go-1st-gen)\n\n1. [Install and initialize the gcloud CLI](/sdk/docs).\n2. Update and install `gcloud` components: \n\n ```bash\n gcloud components update\n ```\n| **Note** : Need a command prompt? You can use the [Google Cloud\n| Shell](https://console.cloud.google.com/?cloudshell=true). The Google Cloud Shell is a command line environment that already includes the Google Cloud CLI, so you don't need to install it. The Google Cloud CLI also comes preinstalled on Google Compute Engine Virtual Machines.\n3. Prepare your development environment.\n [Go to the Go setup guide](/go/docs/setup)\n\nCreate a function\n-----------------\n\n1. Create a directory on your local system for the function code:\n\n ### Linux or Mac OS X\n\n mkdir ~/helloworld\n cd ~/helloworld\n\n ### Windows\n\n mkdir %HOMEPATH%\\helloworld\n cd %HOMEPATH%\\helloworld\n\n2. Create a file called `hello_http.go` in the `helloworld`\n directory with the following contents:\n\n\n // Package helloworld provides a set of Cloud Functions samples.\n package helloworld\n\n import (\n \t\"encoding/json\"\n \t\"fmt\"\n \t\"html\"\n \t\"net/http\"\n\n \t\"github.com/GoogleCloudPlatform/functions-framework-go/functions\"\n )\n\n func init() {\n \tfunctions.HTTP(\"HelloHTTP\", HelloHTTP)\n }\n\n // HelloHTTP is an HTTP Cloud Function with a request parameter.\n func HelloHTTP(w http.ResponseWriter, r *http.Request) {\n \tvar d struct {\n \t\tName string `json:\"name\"`\n \t}\n \tif err := json.NewDecoder(r.Body).Decode(&d); err != nil {\n \t\tfmt.Fprint(w, \"Hello, World!\")\n \t\treturn\n \t}\n \tif d.Name == \"\" {\n \t\tfmt.Fprint(w, \"Hello, World!\")\n \t\treturn\n \t}\n \tfmt.Fprintf(w, \"Hello, %s!\", html.EscapeString(d.Name))\n }\n\n This example function takes a name supplied in the HTTP request and returns\n a greeting, or \"Hello, World!\" when no name is supplied.\n\nSpecify dependencies\n--------------------\n\nThis example function only uses Go standard library packages, so you don't need\nto declare any dependencies beyond just importing the packages.\n\nFor functions that require dependencies outside of the standard library,\nyou must provide the dependencies via either a `go.mod` file or a `vendor`\ndirectory. For more details, read\n[Specifying dependencies in Go](/functions/1stgendocs/writing/specifying-dependencies-go).\n\nDeploy the function\n-------------------\n\nTo deploy the function with an HTTP trigger, run the following\ncommand in the `helloworld` directory, specifying either `go113` or\n`go111` as the value for the `--runtime` flag, depending on which version you\nare using: \n\n```sh\ngcloud functions deploy HelloHTTP --no-gen2 --runtime go121 --trigger-http --allow-unauthenticated\n```\n| **Note:** Cloud Run functions looks for deployable functions in your terminal's current directory by default. Use the [`--source`](/sdk/gcloud/reference/functions/deploy#--source) flag when [deploying your function via `gcloud`](#deploying_the_function) to specify a different function source directory.\n\nThe `--allow-unauthenticated` flag lets you reach the function\n[without authentication](/functions/1stgendocs/securing/managing-access-iam#allowing_unauthenticated_http_function_invocation).\nTo require\n[authentication](/functions/1stgendocs/securing/authenticating#developers), omit the\nflag.\n| **Learn more** : For more details, read about [deploying Cloud Run functions](/functions/1stgendocs/deploy#basics).\n\nTest the function\n-----------------\n\n1. When the function finishes deploying, take note of the `httpsTrigger.url`\n property or find it using the following command:\n\n gcloud functions describe HelloHTTP\n\n It should look like this: \n\n ```\n https://GCP_REGION-PROJECT_ID.cloudfunctions.net/HelloHTTP\n ```\n2. Visit this URL in your browser, or use cURL by running the command:\n\n ```sh\n curl https://GCP_REGION-PROJECT_ID.cloudfunctions.net/HelloHTTP\n ```\n\n You should see a \"Hello, World!\" message. Try passing a name\n in the HTTP request by running the following command: \n\n ```sh\n curl -X POST https://GCP_REGION-PROJECT_ID.cloudfunctions.net/HelloHTTP -H \"Content-Type:application/json\" -d '{\"name\":\"NAME\"}'\n ```\n\n You should see the message \"Hello, \u003cvar translate=\"no\"\u003eNAME\u003c/var\u003e!\"\n\nView logs\n---------\n\nLogs for Cloud Run functions are viewable using the Google Cloud CLI, and in the\nCloud Logging UI.\n\n### Use the command-line tool\n\nTo view logs for your function with the gcloud CLI, use the\n[`logs read`](/sdk/gcloud/reference/functions/logs/read) command, followed by\nthe name of the function: \n\n```bash\ngcloud functions logs read HelloHTTP\n```\n\nThe output should resemble the following: \n\n```bash\nLEVEL NAME EXECUTION_ID TIME_UTC LOG\nD HelloHTTP buv9ej2k1a7r 2019-09-20 13:23:18.910 Function execution started\nD HelloHTTP buv9ej2k1a7r 2019-09-20 13:23:18.913 Function execution took 4 ms, finished with status code: 200\n```\n| **Note:** There is typically a slight delay between when log entries are created and when they show up in Cloud Logging.\n\n### Use the Logging dashboard\n\nYou can also view logs for Cloud Run functions from the\n[Google Cloud console](https://console.cloud.google.com/project/_/logs?service=cloudfunctions.googleapis.com).\n| **Learn more** : For more details, read about [writing, viewing, and responding to logs](/functions/1stgendocs/monitoring/logging)."]]
