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Yeni bir yapılandırma sürümünün yayınlanması veya eski bir sürüme geri dönülmesi gibi Firebase Remote Config olaylarına yanıt olarak bir işlevi tetikleyebilirsiniz.
Bu kılavuzda, iki şablon sürümünün farkını alan bir Remote Config arka plan işlevinin nasıl oluşturulacağı açıklanmaktadır.
Remote Config işlevini tetikleme
Remote Config işlevini tetiklemek için önce gerekli modülleri içe aktarın:
Node.js
// The Cloud Functions for Firebase SDK to set up triggers and logging.const{onConfigUpdated}=require("firebase-functions/v2/remoteConfig");constlogger=require("firebase-functions/logger");// The Firebase Admin SDK to obtain access tokens.constadmin=require("firebase-admin");constapp=admin.initializeApp();constfetch=require("node-fetch");constjsonDiff=require("json-diff");
# The Cloud Functions for Firebase SDK to set up triggers and logging.fromfirebase_functionsimportremote_config_fn# The Firebase Admin SDK to obtain access tokens.importfirebase_adminapp=firebase_admin.initialize_app()importdeepdiffimportrequests
Ardından, güncelleme etkinliği için bir işleyici tanımlayın. Bu işleve iletilen etkinlik nesnesi, şablon güncellemesiyle ilgili meta veriler (ör. yeni sürüm numarası ve güncelleme zamanı) içerir.
Güncellemeyi yapan kullanıcının e-posta adresini, adıyla ve varsa resmiyle birlikte de alabilirsiniz.
Aşağıda, her güncellenen sürümün ve yerine geçtiği sürümün farkını günlüğe kaydeden bir Remote Config işlevi örneği verilmiştir. İşlev, şablon nesnesinin sürüm numarası alanını inceler ve mevcut (yeni güncellenen) sürümü, bir sürüm öncesiyle birlikte alır:
Node.js
exports.showconfigdiff=onConfigUpdated(async(event)=>{try{// Obtain the access token from the Admin SDKconstaccessTokenObj=awaitadmin.credential.applicationDefault().getAccessToken();constaccessToken=accessTokenObj.access_token;// Get the version number from the event objectconstremoteConfigApi="https://firebaseremoteconfig.googleapis.com/v1/"+`projects/${app.options.projectId}/remoteConfig`;constcurrentVersion=event.data.versionNumber;constprevVersion=currentVersion-1;consttemplatePromises=[];templatePromises.push(fetch(remoteConfigApi,{method:"POST",body:newURLSearchParams([["versionNumber",currentVersion+""]]),headers:{Authorization:"Bearer "+accessToken},},));templatePromises.push(fetch(remoteConfigApi,{method:"POST",body:newURLSearchParams([["versionNumber",prevVersion+""]]),headers:{Authorization:"Bearer "+accessToken},},));// Get the templatesconstresponses=awaitPromise.all(templatePromises);constresults=responses.map((r)=>r.json());constcurrentTemplate=results[0];constpreviousTemplate=results[1];// Figure out the differences of the templatesconstdiff=jsonDiff.diffString(previousTemplate,currentTemplate);// Log the differencelogger.log(diff);}catch(error){logger.error(error);}});
Bu örnekte, farkı oluşturmak ve şablon nesnesini almak için isteği oluşturmak üzere json-diff ve request-promise modülleri kullanılır.
Python
@remote_config_fn.on_config_updated()defshowconfigdiff(event:remote_config_fn.CloudEvent[remote_config_fn.ConfigUpdateData])-> None:"""Log the diff of the most recent Remote Config template change."""# Obtain an access token from the Admin SDKaccess_token=app.credential.get_access_token().access_token# Get the version number from the event objectcurrent_version=int(event.data.version_number)# Figure out the differences between templatesremote_config_api=("https://firebaseremoteconfig.googleapis.com/v1/"f"projects/{app.project_id}/remoteConfig")current_template=requests.get(remote_config_api,params={"versionNumber":current_version},headers={"Authorization":f"Bearer {access_token}"})previous_template=requests.get(remote_config_api,params={"versionNumber":current_version-1},headers={"Authorization":f"Bearer {access_token}"})diff=deepdiff.DeepDiff(previous_template,current_template)# Log the differenceprint(diff.pretty())
[[["Anlaması kolay","easyToUnderstand","thumb-up"],["Sorunumu çözdü","solvedMyProblem","thumb-up"],["Diğer","otherUp","thumb-up"]],[["İhtiyacım olan bilgiler yok","missingTheInformationINeed","thumb-down"],["Çok karmaşık / çok fazla adım var","tooComplicatedTooManySteps","thumb-down"],["Güncel değil","outOfDate","thumb-down"],["Çeviri sorunu","translationIssue","thumb-down"],["Örnek veya kod sorunu","samplesCodeIssue","thumb-down"],["Diğer","otherDown","thumb-down"]],["Son güncelleme tarihi: 2025-09-06 UTC."],[],[],null,["\u003cbr /\u003e\n\nYou can trigger a function in response to\n[Firebase Remote Config](/docs/remote-config) events, including\nthe publication of a new config version or the rollback to an older version.\nThis guide describes how to create a Remote Config background function\nthat performs a diff of two template versions.\n\nTrigger a Remote Config function\n\nTo trigger a Remote Config function, first import the\nrequired modules: \n\nNode.js \n\n // The Cloud Functions for Firebase SDK to set up triggers and logging.\n const {onConfigUpdated} = require(\"firebase-functions/v2/remoteConfig\");\n const logger = require(\"firebase-functions/logger\");\n // The Firebase Admin SDK to obtain access tokens.\n const admin = require(\"firebase-admin\");\n const app = admin.initializeApp();\n const fetch = require(\"node-fetch\");\n const jsonDiff = require(\"json-diff\"); \n https://github.com/firebase/functions-samples/blob/c4fde45b65fab584715e786ce3264a6932d996ec/Node/remote-config-diff/functions/index.js#L20-L27\n\nPython \n\n # The Cloud Functions for Firebase SDK to set up triggers and logging.\n from firebase_functions import remote_config_fn\n\n # The Firebase Admin SDK to obtain access tokens.\n import firebase_admin\n\n app = firebase_admin.initialize_app()\n\n import deepdiff\n import requests \n https://github.com/firebase/functions-samples/blob/c4fde45b65fab584715e786ce3264a6932d996ec/Python/remote-config-diff/functions/main.py#L17-L26\n\nThen define a handler for the update event. The event object passed to\nthis function contains metadata\nabout a template update, such as the new version number and time of the update.\nYou can also retrieve the email for the user who made the update, with name\nand an image if available.\n\nHere's an example of a Remote Config function that\nlogs a diff of each updated version and the version it replaced. The function\nexamines the version number field of the template object and retrieves the\ncurrent (newly updated) version together with the version one number lower: \n\nNode.js \n\n exports.showconfigdiff = onConfigUpdated(async (event) =\u003e {\n try {\n // Obtain the access token from the Admin SDK\n const accessTokenObj = await admin.credential.applicationDefault()\n .getAccessToken();\n const accessToken = accessTokenObj.access_token;\n\n // Get the version number from the event object\n const remoteConfigApi = \"https://firebaseremoteconfig.googleapis.com/v1/\" +\n `projects/${app.options.projectId}/remoteConfig`;\n const currentVersion = event.data.versionNumber;\n const prevVersion = currentVersion - 1;\n const templatePromises = [];\n templatePromises.push(fetch(\n remoteConfigApi,\n {\n method: \"POST\",\n body: new URLSearchParams([[\"versionNumber\", currentVersion + \"\"]]),\n headers: {Authorization: \"Bearer \" + accessToken},\n },\n ));\n templatePromises.push(fetch(\n remoteConfigApi,\n {\n method: \"POST\",\n body: new URLSearchParams([[\"versionNumber\", prevVersion + \"\"]]),\n headers: {Authorization: \"Bearer \" + accessToken},\n },\n ));\n\n // Get the templates\n const responses = await Promise.all(templatePromises);\n const results = responses.map((r) =\u003e r.json());\n const currentTemplate = results[0];\n const previousTemplate = results[1];\n // Figure out the differences of the templates\n const diff = jsonDiff.diffString(previousTemplate, currentTemplate);\n // Log the difference\n logger.log(diff);\n } catch (error) {\n logger.error(error);\n }\n }); \n https://github.com/firebase/functions-samples/blob/c4fde45b65fab584715e786ce3264a6932d996ec/Node/remote-config-diff/functions/index.js#L31-L73\n\nThis sample uses the [`json-diff`](https://www.npmjs.com/package/json-diff) and\n[`request-promise`](https://www.npmjs.com/package/request-promise) modules to\ncreate the diff and build the request to get the template object.\n\nPython \n\n @remote_config_fn.on_config_updated()\n def showconfigdiff(event: remote_config_fn.CloudEvent[remote_config_fn.ConfigUpdateData]) -\u003e None:\n \"\"\"Log the diff of the most recent Remote Config template change.\"\"\"\n\n # Obtain an access token from the Admin SDK\n access_token = app.credential.get_access_token().access_token\n\n # Get the version number from the event object\n current_version = int(event.data.version_number)\n\n # Figure out the differences between templates\n remote_config_api = (\"https://firebaseremoteconfig.googleapis.com/v1/\"\n f\"projects/{app.project_id}/remoteConfig\")\n current_template = requests.get(remote_config_api,\n params={\"versionNumber\": current_version},\n headers={\"Authorization\": f\"Bearer {access_token}\"})\n previous_template = requests.get(remote_config_api,\n params={\"versionNumber\": current_version - 1},\n headers={\"Authorization\": f\"Bearer {access_token}\"})\n diff = deepdiff.DeepDiff(previous_template, current_template)\n\n # Log the difference\n print(diff.pretty()) \n https://github.com/firebase/functions-samples/blob/c4fde45b65fab584715e786ce3264a6932d996ec/Python/remote-config-diff/functions/main.py#L31-L53\n\nThis sample uses [`deepdiff`](https://pypi.org/project/deepdiff/) to\ncreate the diff, and `requests` to build and send the request to get\nthe template object."]]