Async example

packages/example/src/routes/async.tsx

@@ -0,0 +1,61 @@
+import { HttpClient } from "@effect/platform"
+import { Container, Flex, Heading, Slider, Text } from "@radix-ui/themes"
+import { createFileRoute } from "@tanstack/react-router"
+import { Array, Effect, flow, Option, Schema } from "effect"
+import { Async, Component, Memoized } from "effect-fc"
+import * as React from "react"
+import { runtime } from "@/runtime"
+
+
+const Post = Schema.Struct({
+    userId: Schema.Int,
+    id: Schema.Int,
+    title: Schema.String,
+    body: Schema.String,
+})
+
+interface AsyncFetchPostViewProps {
+    readonly id: number
+}
+
+class AsyncFetchPostView extends Component.make("AsyncFetchPostView")(function*(props: AsyncFetchPostViewProps) {
+    const post = yield* Component.useOnChange(() => HttpClient.HttpClient.pipe(
+        Effect.tap(Effect.sleep("500 millis")),
+        Effect.andThen(client => client.get(`https://jsonplaceholder.typicode.com/posts/${ props.id }`)),
+        Effect.andThen(response => response.json),
+        Effect.andThen(Schema.decodeUnknown(Post)),
+    ), [props.id])
+
+    return <div>
+        <Heading>{post.title}</Heading>
+        <Text>{post.body}</Text>
+    </div>
+}).pipe(
+    Async.async,
+    Memoized.memoized,
+) {}
+
+
+const AsyncRouteComponent = Component.make("AsyncRouteView")(function*() {
+    const [id, setId] = React.useState(1)
+    const AsyncFetchPost = yield* AsyncFetchPostView.use
+
+    return (
+        <Container>
+            <Flex direction="column" align="center" gap="2">
+                <Slider
+                    value={[id]}
+                    onValueChange={flow(Array.head, Option.getOrThrow, setId)}
+                />
+
+                <AsyncFetchPost id={id} />
+            </Flex>
+        </Container>
+    )
+}).pipe(
+    Component.withRuntime(runtime.context)
+)
+
+export const Route = createFileRoute("/async")({
+    component: AsyncRouteComponent,
+})

packages/example/src/routes/dev/async-rendering.tsx

@@ -1,78 +0,0 @@
-import { Flex, Text, TextField } from "@radix-ui/themes"
-import { createFileRoute } from "@tanstack/react-router"
-import { GetRandomValues, makeUuid4 } from "@typed/id"
-import { Effect } from "effect"
-import { Async, Component, Memoized } from "effect-fc"
-import * as React from "react"
-import { runtime } from "@/runtime"
-
-
-// Generator version
-const RouteComponent = Component.makeUntraced(function* AsyncRendering() {
-    const MemoizedAsyncComponentFC = yield* MemoizedAsyncComponent.use
-    const AsyncComponentFC = yield* AsyncComponent.use
-    const [input, setInput] = React.useState("")
-
-    return (
-        <Flex direction="column" align="stretch" gap="2">
-            <TextField.Root
-                value={input}
-                onChange={e => setInput(e.target.value)}
-            />
-
-            <MemoizedAsyncComponentFC fallback={React.useMemo(() => <p>Loading memoized...</p>, [])} />
-            <AsyncComponentFC />
-        </Flex>
-    )
-}).pipe(
-    Component.withRuntime(runtime.context)
-)
-
-// Pipeline version
-// const RouteComponent = Component.make("RouteComponent")(() => Effect.Do,
-//     Effect.bind("VMemoizedAsyncComponent", () => Component.useFC(MemoizedAsyncComponent)),
-//     Effect.bind("VAsyncComponent", () => Component.useFC(AsyncComponent)),
-//     Effect.let("input", () => React.useState("")),
-
-//     Effect.map(({ input: [input, setInput], VAsyncComponent, VMemoizedAsyncComponent }) =>
-//         <Flex direction="column" align="stretch" gap="2">
-//             <TextField.Root
-//                 value={input}
-//                 onChange={e => setInput(e.target.value)}
-//             />
-
-//             <VMemoizedAsyncComponent />
-//             <VAsyncComponent />
-//         </Flex>
-//     ),
-// ).pipe(
-//     Component.withRuntime(runtime.context)
-// )
-
-
-class AsyncComponent extends Component.makeUntraced("AsyncComponent")(function*() {
-    const SubComponentFC = yield* SubComponent.use
-
-    yield* Effect.sleep("500 millis") // Async operation
-    // Cannot use React hooks after the async operation
-
-    return (
-        <Flex direction="column" align="stretch">
-            <Text>Rendered!</Text>
-            <SubComponentFC />
-        </Flex>
-    )
-}).pipe(
-    Async.async,
-    Async.withOptions({ defaultFallback: <p>Loading...</p> }),
-) {}
-class MemoizedAsyncComponent extends Memoized.memoized(AsyncComponent) {}
-
-class SubComponent extends Component.makeUntraced("SubComponent")(function*() {
-    const [state] = React.useState(yield* Component.useOnMount(() => Effect.provide(makeUuid4, GetRandomValues.CryptoRandom)))
-    return <Text>{state}</Text>
-}) {}
-
-export const Route = createFileRoute("/dev/async-rendering")({
-    component: RouteComponent
-})