# Operators

### AsyncResult Infix Operators

Namespace: `FsToolkit.ErrorHandling.Operator.AsyncResult`

FsToolkit.ErrorHandling provides the standard infix operators for the `map` (`<!>`), `apply` (`<*>`), and `bind` (`>>=`) functions of the `Async<Result<_,_>>` type.

### Examples:

#### Example 1

Expanding on the [AsyncResult.map2 example](broken://pages/-LN5LuFJf7uqETG1DwTb#example-1), we define another function:

```fsharp
notifyFollowers : NotifyNewPostRequest -> Async<Result<unit, exn>>
```

We can then rewrite the example and additionally call `notifyFollowers` using the operators as below:

```fsharp
open FsToolkit.ErrorHandling.Operator.AsyncResult

// CreatePostRequest -> Async<Result<unit, exn>>
let createPostAndNotifyFollowers (req : CreatePostRequest) = 
  notifyNewPostRequest
  <!> (getFollowerIds req.UserId)
  <*> (createPost req)
  >>= notifyFollowers
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://demystifyfp.gitbook.io/fstoolkit-errorhandling/fstoolkit.errorhandling/asyncresult/operators.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.