ResultTry

ResultTry is a software concept and, in several ecosystems, a library that encapsulates the outcome of an operation along two orthogonal dimensions: the result value and the reliability of execution. The idea combines a Result type, which represents either a success value or an error, with a Try-style wrapper that captures exceptions or transient faults and provides composable semantics for retrying the operation.

Core components typically include a Result or Either type to carry success or failure information, and a Try or Attempt abstraction that records the attempt outcome and may trigger side effects such as logging. A RetryPolicy or backoff strategy governs how many attempts are allowed, how long to wait between tries, and whether to escalate after certain conditions. Optional hooks may support actions on failure, such as alerting or cleanup. The design generally emphasizes immutability, clear error propagation, and support for both synchronous and asynchronous execution.

Usage patterns center on operations that may encounter temporary or recoverable errors, such as network requests, I/O operations, or calls to external services. ResultTry enables chaining operations with map or flatMap-like combinators, while preserving retry logic and error handling in a single, declarative flow. It is often contrasted with plain exception handling, highlighting advantages in predictable control flow, testability, and observability.

In practice, ResultTry concepts appear under various names—Result, Try, Either, or Retry—in different languages, and are implemented as libraries or language-native constructs to support robust, retry-aware error handling.