You can create an Eventarc trigger that enables a Cloud Run function
to be triggered by an event supported by Eventarc. Note that you
must configure a trigger when you create or deploy a function using the
Google Cloud CLI or the Google Cloud console.
You can also trigger Cloud Run functions in response to custom events
published to an Eventarc channel.
Create an Eventarc trigger
Create an Eventarc trigger so that your
Cloud Run functions service receives notifications of a specific event or
set of events. By specifying filters for the trigger, you can configure the
routing of the event, including the event type and source. For more information
on how to configure an Eventarc trigger for
Cloud Run functions, see Eventarc triggers.
The following event types trigger requests to your service:
You can trigger Cloud Run functions in response to custom events.
These are events produced by special or additional event providers, as opposed
to the built-in Firebase events supported by the Firebase SDK for
Cloud Run functions, and that are published to an Eventarc
channel. For more information, see
Create and handle custom event triggers.
Note that for custom events provided by
Firebase Extensions,
you should refer to the extension's documentation for a list of events (if any)
that it publishes. For example, see the
event types for the Run Payments with Stripe extension.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-25 UTC."],[[["\u003cp\u003eEventarc triggers enable Cloud Run functions to be activated by various events, requiring trigger configuration during function creation or deployment.\u003c/p\u003e\n"],["\u003cp\u003eCloud Run functions can be triggered by events such as audit log creation, direct events from sources like Cloud Storage, or messages published to a Pub/Sub topic.\u003c/p\u003e\n"],["\u003cp\u003eCustom events published to an Eventarc channel can also trigger Cloud Run functions, offering flexibility beyond built-in Firebase events.\u003c/p\u003e\n"],["\u003cp\u003eSpecific events are able to trigger requests to the Cloud Run service by configuring the filters of the trigger to match the criteria of the events.\u003c/p\u003e\n"]]],[],null,["# Create a trigger for Cloud Run functions\n\n[Standard](/eventarc/standard/docs/overview)\n\nYou can create an Eventarc trigger that enables a Cloud Run function\nto be triggered by an event supported by Eventarc. Note that you\nmust configure a trigger when you create or deploy a function using the\nGoogle Cloud CLI or the Google Cloud console.\n\nYou can also trigger Cloud Run functions in response to custom events\npublished to an Eventarc channel.\n\nCreate an Eventarc trigger\n--------------------------\n\nCreate an Eventarc trigger so that your\nCloud Run functions service receives notifications of a specific event or\nset of events. By specifying filters for the trigger, you can configure the\nrouting of the event, including the event type and source. For more information\non how to configure an Eventarc trigger for\nCloud Run functions, see [Eventarc triggers](/functions/docs/calling/eventarc).\n\nThe following event types trigger requests to your service:\n\n- [An audit log is created](/eventarc/docs/reference/supported-events#using-cloud-audit-logs) that matches the trigger's filter criteria\n- [A direct event occurs](/eventarc/docs/reference/supported-events#directly-from-a-google-cloud-source) such as an update to a Cloud Storage bucket or an update to a Firebase Remote Config template\n- [A message is published to a Pub/Sub topic](/eventarc/docs/reference/supported-events#using-pubsub)\n\nTrigger functions with custom events\n------------------------------------\n\nYou can trigger Cloud Run functions in response to custom events.\nThese are events produced by special or additional event providers, as opposed\nto the built-in Firebase events supported by the Firebase SDK for\nCloud Run functions, and that are published to an Eventarc\nchannel. For more information, see\n[Create and handle custom event triggers](https://firebase.google.com/docs/functions/beta/custom-events).\nNote that for custom events provided by\n[Firebase Extensions](https://firebase.google.com/docs/extensions/install-extensions),\nyou should refer to the extension's documentation for a list of events (if any)\nthat it publishes. For example, see the\n[event types for the Run Payments with Stripe extension](https://github.com/stripe/stripe-firebase-extensions/blob/98c97775d54fb0be4601864b74d2fe5ce24dab83/firestore-stripe-payments/extension.yaml)."]]
