It is similar to Guava's AsyncFunction, redeclared so that Guava can be shaded.
Type Parameters
Name
Description
I
O
Methods
apply(I input)
publicabstractApiFuture<O>apply(Iinput)
Returns an output Future to use in place of the given input. The output Future need not be
done, making AsyncFunction suitable for asynchronous derivations.
Throwing an exception from this method is equivalent to returning a failing Future.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-15 UTC."],[[["\u003cp\u003eThe latest version available for \u003ccode\u003eApiAsyncFunction\u003c/code\u003e is 2.46.1, but version 2.41.0 is the current page's version.\u003c/p\u003e\n"],["\u003cp\u003eThis page provides a list of historical versions of \u003ccode\u003eApiAsyncFunction\u003c/code\u003e, ranging from the latest down to version 2.1.2, each linked to its specific documentation.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eApiAsyncFunction\u003c/code\u003e is an interface used for transforming a value, potentially asynchronously, similar in purpose to Guava's \u003ccode\u003eAsyncFunction\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eapply\u003c/code\u003e method in the \u003ccode\u003eApiAsyncFunction\u003c/code\u003e interface takes an input of type \u003ccode\u003eI\u003c/code\u003e and returns an \u003ccode\u003eApiFuture\u003c/code\u003e of type \u003ccode\u003eO\u003c/code\u003e, which can represent an asynchronous derivation.\u003c/p\u003e\n"],["\u003cp\u003eThrowing an exception in the apply method is equivalent to returning a failing future, according to the documentation.\u003c/p\u003e\n"]]],[],null,[]]
