A connection to the Cloud Pub/Sub service to publish events.
This interface defines pure-virtual methods for each of the user-facing overload sets in BlockingPublisher. That is, all of BlockingPublisher's overloads will forward to the one pure-virtual method declared in this interface. This allows users to inject custom behavior (e.g., with a Google Mock object) in a BlockingPublisher object for use in their own tests.
Applications may define classes derived from PublisherConnection, for example, because they want to mock the class. To avoid breaking all such derived classes when we change the number or type of the arguments to the member functions we define lightweight structures to pass the arguments.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe document details the \u003ccode\u003eBlockingPublisherConnection\u003c/code\u003e class, which acts as an interface for connecting to the Cloud Pub/Sub service to publish events.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available is 2.37.0-rc, with multiple previous versions listed, ranging from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eBlockingPublisherConnection\u003c/code\u003e uses pure-virtual methods, allowing users to inject custom behavior into a \u003ccode\u003eBlockingPublisher\u003c/code\u003e object for testing purposes.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePublish()\u003c/code\u003e function, which is defined in the interface, is used to publish messages to the Cloud Pub/Sub, and it uses \u003ccode\u003ePublishParams\u003c/code\u003e as input and returns \u003ccode\u003eStatusOr< std::string >\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eoptions()\u003c/code\u003e function returns the \u003ccode\u003eOptions\u003c/code\u003e that were set when the class was initialized.\u003c/p\u003e\n"]]],[],null,[]]
