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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 provides documentation for the \u003ccode\u003eBlockingPublisherConnection\u003c/code\u003e class in the Google Cloud Pub/Sub C++ client library, outlining its role as an interface for connecting to the Pub/Sub service to publish events.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eBlockingPublisherConnection\u003c/code\u003e class defines pure-virtual methods that correspond to the user-facing overloads in the \u003ccode\u003eBlockingPublisher\u003c/code\u003e class, enabling users to inject custom behaviors, like those found in Google Mock objects, into a \u003ccode\u003eBlockingPublisher\u003c/code\u003e for their own testing.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes links to various versions of the library, starting with version 2.11.0, and going up to the most recent release candidate, 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe page highlights that the \u003ccode\u003ePublish\u003c/code\u003e function, a virtual method, takes \u003ccode\u003ePublishParams\u003c/code\u003e and returns a \u003ccode\u003eStatusOr<std::string>\u003c/code\u003e which defines the interface for the \u003ccode\u003eBlockingPublisher::Publish()\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eApplications can create classes derived from \u003ccode\u003ePublisherConnection\u003c/code\u003e, in order to mock the class, and use lightweight structures to pass member function arguments to avoid breaking derived classes when the argument number or type changes.\u003c/p\u003e\n"]]],[],null,[]]
