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Google Analytics proporciona informes de eventos que te ayudan a comprender
la forma en que los usuarios interactúan con tu app. Cloud Functions (1ª gen.)
te permite acceder a los eventos de conversión que registraste desde dispositivos Apple y Android,
y activar funciones cuando se generen.
Activa una función de Google Analytics
Cloud Functions admite Google AnalyticsAnalyticsEvent.
Este evento se activa cada vez que la actividad del usuario genera un evento de conversión.
Por ejemplo, puedes escribir una función que se active cuando se genere el evento in_app_purchase para indicar que se produjo una compra directa desde la app.
Debes especificar el evento de Analytics que deseas que active la función con el método functions.analytics.event() y supervisar el evento en el controlador onLog(), como se muestra a continuación:
Con cada evento de Analytics, tienes acceso a todos los parámetros y las propiedades de usuario relevantes. Estos incluyen información sobre el usuario, el dispositivo, la app y la información geográfica del evento.
Para obtener una lista completa de los parámetros y las propiedades del usuario, consulta la referencia de functions.analytics.
Para usar una función activada por una compra, como se ilustra en
esta muestra,
te recomendamos acceder a los atributos del usuario, como su idioma y el
valor del evento (valueInUSD).
Este segundo atributo permite que la función de muestra evalúe si se trata de un
evento de conversión de alto valor a fin de enviarles un cupón por un importe superior a los clientes valiosos.
[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Falta la información que necesito","missingTheInformationINeed","thumb-down"],["Muy complicado o demasiados pasos","tooComplicatedTooManySteps","thumb-down"],["Desactualizado","outOfDate","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Problema con las muestras o los códigos","samplesCodeIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-09-09 (UTC)"],[],[],null,["\u003cbr /\u003e\n\nGoogle Analytics provides event reports that help you understand\nhow users interact with your app. With Cloud Functions (1st gen), you\ncan access conversion events you have logged from Apple and Android devices\nand trigger functions based on those events.\n| Only Apple platform and Android events marked as conversion events are currently supported by Cloud Functions; Web conversion events are not currently available. You can specify which events are conversion events in the [Events](//console.firebase.google.com/project/_/analytics/events) tab of the Firebase console **Analytics** pane.\n| **Note:** Cloud Functions for Firebase (2nd gen) does not provide support for the events and triggers described in this guide. Because 1st gen and 2nd gen functions can coexist side-by-side in the same source file, you can still develop and deploy this functionality together with 2nd gen functions.\n\nTrigger a Google Analytics function\n\nCloud Functions supports the Google Analytics\n[`AnalyticsEvent`](/docs/reference/functions/firebase-functions.analytics.analyticsevent).\nThis event is triggered whenever user activity generates a conversion event.\nFor example, you could write a function that\ntriggers when the `in_app_purchase` event is generated, indicating that an\nin-app purchase has occurred.\nYou must specify the Analytics event that\nyou want to trigger your function using the\n[`functions.analytics.event()`](/docs/reference/functions/firebase-functions.analytics.analyticsevent)\nmethod, and handle the event within the\n[`onLog()`](/docs/reference/functions/firebase-functions.analytics.analyticseventbuilder#analyticsanalyticseventbuilderonlog)\nevent handler:\n\n\u003cbr /\u003e\n\n```gdscript\nexports.sendCouponOnPurchase = functions.analytics.event('in_app_purchase').onLog((event) =\u003e {\n // ...\n});\n```\n\n\u003cbr /\u003e\n\nAccess event attributes\n\nWith each Analytics event, you have access to all relevant\nparameters and user properties. These include information about the user, the\ndevice, the app, and geographical information for the event.\nFor the complete list of parameters and user properties, see the\n[`functions.analytics`](/docs/reference/functions/firebase-functions.analytics) reference.\n\nFor a purchase-triggered function as illustrated in\n[this sample](https://github.com/firebase/functions-samples/tree/main/Node-1st-gen/coupon-on-purchase),\nyou might want to access user attributes such as the user's language and the\nevent's value ([`valueInUSD`](/docs/reference/functions/firebase-functions.analytics.analyticsevent#analyticsanalyticseventvalueinusd)).\nThis second attribute allows the sample function to test whether this is a\nhigh-value conversion event, in order to send a higher-value coupon to valuable customers.\n\n\u003cbr /\u003e\n\n```gdscript\n/**\n * After a user has completed a purchase, send them a coupon via FCM valid on their next purchase.\n */\nexports.sendCouponOnPurchase = functions.analytics.event('in_app_purchase').onLog((event) =\u003e {\n const user = event.user;\n const uid = user.userId; // The user ID set via the setUserId API.\n const purchaseValue = event.valueInUSD; // Amount of the purchase in USD.\n const userLanguage = user.deviceInfo.userDefaultLanguage; // The user language in language-country format.\n\n // For purchases above 500 USD, we send a coupon of higher value.\n if (purchaseValue \u003e 500) {\n return sendHighValueCouponViaFCM(uid, userLanguage);\n }\n return sendCouponViaFCM(uid, userLanguage);\n});https://github.com/firebase/functions-samples/blob/c4fde45b65fab584715e786ce3264a6932d996ec/Node-1st-gen/coupon-on-purchase/functions/index.js#L23-L41\n```\n\n\u003cbr /\u003e\n\nNext steps\n\nTo learn more about handling Analytics events in Cloud Functions,\nsee the [Google Analytics documentation](/docs/analytics) and the\n[`functions.analytics`](/docs/reference/functions/firebase-functions.analytics) reference,\nand try running the code sample\n[coupon-on-purchase](https://github.com/firebase/functions-samples/tree/main/Node-1st-gen/coupon-on-purchase)."]]