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Set up an environment to run scala zio applications by copying the library dependency into your sbt file, reloading the project, and toggling to version 1.
Create a hello world application with Zio by importing Zio and console, implementing the run method, and using exit code to print hello world.
Explore referential transparency and the role of type signatures in functional effects, using options and zero effects, and examine runtime environments, exceptions, and io variants.
Explore console interaction in Scala ZIO by writing to the console and reading input, using put-like and get-like methods, with a hello world example and input mapping.
Learn to chain console effects in Scala ZIO by using for comprehension to replace nested flat maps, enabling readable input and output while preserving referential transparency.
Explore sequential operators in Scala zio, including zip, zip left, zip right, lift, and separate, and see how to combine two effects with a user-defined function.
Learn how to use either to lift a failure effect into a success value in Scala ZIO, enabling graceful exception handling.
Learn how to catch exceptions in ZIO using catchAll and catchSome, converting failures into successes and handling specific errors with backups.
Learn how to implement fallbacks with or else in ZIO to recover from missing files, and use folding to handle success and failure in a run method.
Explore how retrying uses a schedule to retry a failing effect according to a policy, with up to five attempts and a fallback backup file when not found.
Learn to guarantee a finalizing effect in Zeo by using ensuring, so the effect runs whether it succeeds, fails, or is interrupted across synchronous, asynchronous, and concurrent contexts.
Learn how to manage resources with ZIO bracket by acquiring a resource, using it to read lines, and releasing it to close the source, demonstrated with a file example.
Explore fibers as lightweight green threads managed by the ZIO runtime, distinct from OS threads, and learn how to create, join, and perform basic operations.
Explore forking with the fork method on effects to create fibers and run three tasks in parallel, contrasting synchronous execution.
Learn to schedule fibers in ZIO by forking and joining parallel tasks, zipping their results into a single effect, and running the combined work before continuing with a third task.
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ZIO is a Scala next-generation framework that allows us to write powerful, concurrent, and high-performance applications in Scala using pure functional programming.
ZIO basically describes an "effect" in the code. It gives you a powerful model that allows us to compose any kind of action, and deal with parallelism, concurrency, and coordination, using the scale powerful type-system.
The ZIO library also comes with powerful tools built on real-life practices and design patterns, so we can write more easily composable and performant code.
With a beginner-friendly yet powerful functional core, ZIO lets developers quickly build best-practice applications that are highly scalable, testable, robust, resilient, resource-safe, efficient, and observable.
In this course we covered the basic concepts for ZIO-like effects, then deep dive into how to handle errors and resources and finally touch on the concurrency concept i.e fibers in ZIO.
Modules -
The first module covers the basic introduction and how to set up the project on your local and run the hello world example.
The second module talks about effects, chaining effects, and different operations.
The Third module talks about the error handing techniques used in ZIO. Here we can see live examples of how to use Either, fallbacks and folding mechanisms, or catching and retrying techniques.
The Fourth module talks about handling the resource covering the topics like acquiring and release of actions, finalizing, etc.
The Fifth video section then lets you understand the concepts of Fibres, a parallel and concurrent processing toolkit in zio.
The end result is powerful applications.