[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003ePubsubExtensions\u003c/code\u003e API is 3.23.0, as shown in the provided list of available versions.\u003c/p\u003e\n"],["\u003cp\u003eThis webpage provides reference documentation and code samples for the Cloud Pub/Sub v1 API class \u003ccode\u003ePubsubExtensions\u003c/code\u003e, which are extensions to pubsub messages.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003ePubsubExtensions\u003c/code\u003e inherits from the \u003ccode\u003eobject\u003c/code\u003e class and has methods like \u003ccode\u003eGetDeliveryAttempt\u003c/code\u003e, which retrieves the delivery attempt of a message if dead-letter queues are enabled.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eGetDeliveryAttempt\u003c/code\u003e method of the PubsubExtensions API takes a \u003ccode\u003ePubsubMessage\u003c/code\u003e as a parameter and will return an integer representing the delivery attempt, or null if the subscription doesn't use dead-letter queues.\u003c/p\u003e\n"],["\u003cp\u003eMultiple versions of the \u003ccode\u003ePubsubExtensions\u003c/code\u003e API are documented here, spanning from version 2.3.0 to 3.23.0.\u003c/p\u003e\n"]]],[],null,["# Cloud Pub/Sub v1 API - Class PubsubExtensions (3.27.0)\n\nVersion latestkeyboard_arrow_down\n\n- [3.27.0 (latest)](/dotnet/docs/reference/Google.Cloud.PubSub.V1/latest/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.26.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.26.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.25.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.25.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.24.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.24.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.23.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.23.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.22.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.22.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.21.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.21.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.20.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.20.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.19.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.19.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.18.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.18.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.17.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.17.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.16.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.16.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.15.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.15.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.14.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.14.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.13.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.13.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.12.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.12.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.11.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.11.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.10.1](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.10.1/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.9.1](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.9.1/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.8.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.8.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.7.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.7.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.6.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.6.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.5.1](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.5.1/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.4.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.4.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.3.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.3.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.2.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.2.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.1.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.1.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [3.0.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/3.0.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.10.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.10.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.9.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.8.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.7.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.6.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.5.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.4.0/Google.Cloud.PubSub.V1.PubsubExtensions)\n- [2.3.0](/dotnet/docs/reference/Google.Cloud.PubSub.V1/2.3.0/Google.Cloud.PubSub.V1.PubsubExtensions) \n\n public static class PubsubExtensions\n\nReference documentation and code samples for the Cloud Pub/Sub v1 API class PubsubExtensions.\n\nExtensions to pubsub messages. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e PubsubExtensions \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.MemberwiseClone()](https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.PubSub.V1](/dotnet/docs/reference/Google.Cloud.PubSub.V1/latest/Google.Cloud.PubSub.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.PubSub.V1.dll\n\nMethods\n-------\n\n### GetDeliveryAttempt(PubsubMessage)\n\n public static int? GetDeliveryAttempt(this PubsubMessage msg)\n\nGet the delivery attempt of this message, if it comes from a subscription\nthat has dead-letter queues enabled.\n\n**Remarks** \nDelivery attempt counter is 1 + (the sum of number of NACKs and number of\nack_deadline exceeds) for this message."]]