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| 1 | +/** @jsxImportSource @remix-run/dom */ |
| 2 | + |
| 3 | +import { createRoot, type Remix } from "@remix-run/dom"; |
| 4 | +import { dom } from "@remix-run/events"; |
| 5 | +import type { User } from "jsonplaceholder-types/types/user"; |
| 6 | +import type { Post } from "jsonplaceholder-types/types/post"; |
| 7 | + |
| 8 | +function isAbortError( |
| 9 | + error: unknown, |
| 10 | +): error is DOMException & { name: "AbortError" } { |
| 11 | + return error instanceof DOMException && error.name === "AbortError"; |
| 12 | +} |
| 13 | + |
| 14 | +function App(this: Remix.Handle) { |
| 15 | + let selectedUserId: number | undefined; |
| 16 | + let users: User[] | undefined; |
| 17 | + let posts: Post[] | undefined; |
| 18 | + let loadingUsers = false; |
| 19 | + let loadingPosts = false; |
| 20 | + |
| 21 | + const fetchUsers: Remix.Task = async (signal) => { |
| 22 | + loadingUsers = true; |
| 23 | + try { |
| 24 | + const response = await fetch( |
| 25 | + "https://jsonplaceholder.typicode.com/users", |
| 26 | + { signal }, |
| 27 | + ); |
| 28 | + users = await response.json() as User[]; |
| 29 | + this.update(); |
| 30 | + } catch (error) { |
| 31 | + if (!isAbortError(error)) { |
| 32 | + throw error; |
| 33 | + } |
| 34 | + } finally { |
| 35 | + loadingUsers = false; |
| 36 | + } |
| 37 | + }; |
| 38 | + |
| 39 | + const fetchPosts: Remix.Task = async (signal) => { |
| 40 | + loadingPosts = true; |
| 41 | + try { |
| 42 | + const response = await fetch( |
| 43 | + `https://jsonplaceholder.typicode.com/posts?userId=${selectedUserId}`, |
| 44 | + { signal }, |
| 45 | + ); |
| 46 | + posts = await response.json() as Post[]; |
| 47 | + this.update(); |
| 48 | + } catch (error) { |
| 49 | + if (!isAbortError(error)) { |
| 50 | + throw error; |
| 51 | + } |
| 52 | + } finally { |
| 53 | + loadingPosts = false; |
| 54 | + } |
| 55 | + }; |
| 56 | + |
| 57 | + const selectUserId = (id: number, signal: AbortSignal) => { |
| 58 | + selectedUserId = id; |
| 59 | + fetchPosts(signal); |
| 60 | + this.update(); |
| 61 | + }; |
| 62 | + |
| 63 | + this.queueTask(fetchUsers); |
| 64 | + |
| 65 | + return () => ( |
| 66 | + <> |
| 67 | + <h1>Buildless Remix 3 app</h1> |
| 68 | + {users !== undefined && ( |
| 69 | + <label> |
| 70 | + Select User: |
| 71 | + <select |
| 72 | + on={[ |
| 73 | + dom.change(({ currentTarget }, signal) => { |
| 74 | + selectUserId(+currentTarget.value, signal); |
| 75 | + }), |
| 76 | + ]} |
| 77 | + > |
| 78 | + {users.map((user) => ( |
| 79 | + <option key={user.id} value={user.id}> |
| 80 | + @{user.username}: {user.name} |
| 81 | + </option> |
| 82 | + ))} |
| 83 | + </select> |
| 84 | + </label> |
| 85 | + ) || |
| 86 | + loadingUsers && <p>Loading Users...</p>} |
| 87 | + {posts !== undefined && ( |
| 88 | + <ul> |
| 89 | + {posts.map((post) => <li key={post.id}>{post.title}</li>)} |
| 90 | + </ul> |
| 91 | + ) || |
| 92 | + loadingPosts && <p>Loading Posts...</p> || |
| 93 | + users !== undefined && <p>Select User to view posts</p>} |
| 94 | + </> |
| 95 | + ); |
| 96 | +} |
| 97 | + |
| 98 | +const root = createRoot(document.body); |
| 99 | +root.render(<App />); |
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