Builder (Orsak)

Builder Module

The eff computation expression, and mkEffect.

Function or value	Description
`eff` Full Usage: `eff` Returns: `EffBuilder`	The computation expression for writing effects. Binding (`let!`, `do!`, `return!`) works with other effects, and with `Task`, `ValueTask`, `Async` and `Result`, so .NET APIs can be used directly. It supports `for`, `while`, `use`, `try/with` and `try/finally`, and `and!` runs effects concurrently. A failed effect stops the rest of the expression, with its error. Returns: `EffBuilder` Example `let placeOrder (order: Order) = eff { let! id = GuidGenerator.genGuid () let! now = Time.utcNow () do! Orders.save { order with Id = id; Placed = now } let! customer = Customers.load order.CustomerId and! stock = Stock.reserve order.Lines return id }` val placeOrder: order: 'a -> 'b val order: 'a val id: x: 'T -> 'T
`mkEffect d` Full Usage: `mkEffect d` Parameters: d : `'a -> AsyncResult<'b, 'c>` - The function that starts the effect. Returns: `Effect<'a, 'b, 'c>` Modifiers: inline Type parameters: 'a, 'b, 'c	Creates an effect from a function that, given an environment, starts it. Prefer `Effect.Create` or the `eff` computation expression; this is the lowest-level way to create an effect. d : `'a -> AsyncResult<'b, 'c>` The function that starts the effect. Returns: `Effect<'a, 'b, 'c>`