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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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\u003eThis webpage details the \u003ccode\u003eBlockingPublisherConnection\u003c/code\u003e class for the Google Cloud Pub/Sub service, offering different version references.\u003c/p\u003e\n"],["\u003cp\u003eVersion 2.37.0-rc is the latest release candidate, with versions down to 2.11.0 available for reference.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eBlockingPublisherConnection\u003c/code\u003e allows for the injection of custom behavior, such as using a mock object for testing purposes.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePublish()\u003c/code\u003e function defines the interface for \u003ccode\u003eBlockingPublisher::Publish()\u003c/code\u003e, accepting \u003ccode\u003ePublishParams\u003c/code\u003e and returning a \u003ccode\u003eStatusOr< std::string >\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eoptions()\u003c/code\u003e function provides access to the options configured during the initialization of the class.\u003c/p\u003e\n"]]],[],null,[]]
