feat: implement user follow/unfollow functionality and thought retrieval by user

- Added follow and unfollow endpoints for users.
- Implemented logic to retrieve thoughts by a specific user.
- Updated user error handling to include cases for already following and not following.
- Created persistence layer for follow relationships.
- Enhanced user and thought schemas to support new features.
- Added tests for follow/unfollow endpoints and thought retrieval.
- Updated frontend to display thoughts and allow posting new thoughts.
This commit is contained in:
2025-09-05 19:08:37 +02:00
parent 912259ef54
commit decf81e535
31 changed files with 872 additions and 155 deletions

View File

@@ -1,103 +1,158 @@
import Image from "next/image";
"use client";
import { useState, useEffect, FormEvent } from "react";
interface Thought {
id: number;
author_id: number;
content: string;
created_at: string;
}
export default function Home() {
return (
<div className="font-sans grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 pb-20 gap-16 sm:p-20">
<main className="flex flex-col gap-[32px] row-start-2 items-center sm:items-start">
<Image
className="dark:invert"
src="/next.svg"
alt="Next.js logo"
width={180}
height={38}
priority
/>
<ol className="font-mono list-inside list-decimal text-sm/6 text-center sm:text-left">
<li className="mb-2 tracking-[-.01em]">
Get started by editing{" "}
<code className="bg-black/[.05] dark:bg-white/[.06] font-mono font-semibold px-1 py-0.5 rounded">
app/page.tsx
</code>
.
</li>
<li className="tracking-[-.01em]">
Save and see your changes instantly.
</li>
</ol>
// State to store the list of thoughts for the feed
const [thoughts, setThoughts] = useState<Thought[]>([]);
// State for the content of the new thought being typed
const [newThoughtContent, setNewThoughtContent] = useState("");
// State to manage loading status
const [isLoading, setIsLoading] = useState(true);
// State to hold any potential errors during API calls
const [error, setError] = useState<string | null>(null);
<div className="flex gap-4 items-center flex-col sm:flex-row">
<a
className="rounded-full border border-solid border-transparent transition-colors flex items-center justify-center bg-foreground text-background gap-2 hover:bg-[#383838] dark:hover:bg-[#ccc] font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 sm:w-auto"
href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
target="_blank"
rel="noopener noreferrer"
// Function to fetch the feed from the backend API
const fetchFeed = async () => {
try {
setError(null);
const response = await fetch("http://localhost:8000/api/feed");
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
// The API returns { thoughts: [...] }, so we access the nested array
setThoughts(data.thoughts || []);
} catch (e: unknown) {
console.error("Failed to fetch feed:", e);
setError(
"Could not load the feed. The backend might be busy. Please try refreshing."
);
} finally {
setIsLoading(false);
}
};
// useEffect hook to fetch the feed when the component first loads
useEffect(() => {
fetchFeed();
}, []);
// Handler for submitting the new thought form
const handleSubmitThought = async (e: FormEvent) => {
e.preventDefault();
if (!newThoughtContent.trim()) return; // Prevent empty posts
try {
const response = await fetch("http://localhost:8000/api/thoughts", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
// We are hardcoding author_id: 1 as we don't have auth yet
body: JSON.stringify({ content: newThoughtContent, author_id: 1 }),
});
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
// Clear the input box
setNewThoughtContent("");
// Refresh the feed to show the new post
fetchFeed();
} catch (e: unknown) {
console.error("Failed to post thought:", e);
setError("Failed to post your thought. Please try again.");
}
};
return (
<div className="font-sans bg-gradient-to-br from-sky-200 via-teal-100 to-green-200 min-h-screen text-gray-800">
<div className="container mx-auto max-w-2xl p-4 sm:p-6">
{/* Header */}
<header className="text-center my-6">
<h1
className="text-5xl font-bold text-white"
style={{ textShadow: "2px 2px 4px rgba(0,0,0,0.2)" }}
>
<Image
className="dark:invert"
src="/vercel.svg"
alt="Vercel logomark"
width={20}
height={20}
Thoughts
</h1>
<p className="text-white/80 mt-2">
Your space on the decentralized web.
</p>
</header>
{/* New Thought Form */}
<div className="bg-white/70 backdrop-blur-lg rounded-xl shadow-lg p-5 mb-8">
<form onSubmit={handleSubmitThought}>
<textarea
value={newThoughtContent}
onChange={(e) => setNewThoughtContent(e.target.value)}
className="w-full h-24 p-3 rounded-lg border border-gray-300 focus:ring-2 focus:ring-sky-400 focus:outline-none resize-none transition-shadow"
placeholder="What's on your mind?"
maxLength={128}
/>
Deploy now
</a>
<a
className="rounded-full border border-solid border-black/[.08] dark:border-white/[.145] transition-colors flex items-center justify-center hover:bg-[#f2f2f2] dark:hover:bg-[#1a1a1a] hover:border-transparent font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 w-full sm:w-auto md:w-[158px]"
href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
target="_blank"
rel="noopener noreferrer"
>
Read our docs
</a>
<div className="flex justify-between items-center mt-3">
<span className="text-sm text-gray-500">
{128 - newThoughtContent.length} characters remaining
</span>
<button
type="submit"
className="px-6 py-2 bg-sky-500 text-white font-semibold rounded-full shadow-md hover:bg-sky-600 active:scale-95 transition-all duration-150 ease-in-out disabled:bg-gray-400"
disabled={!newThoughtContent.trim()}
>
Post
</button>
</div>
</form>
</div>
</main>
<footer className="row-start-3 flex gap-[24px] flex-wrap items-center justify-center">
<a
className="flex items-center gap-2 hover:underline hover:underline-offset-4"
href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
target="_blank"
rel="noopener noreferrer"
>
<Image
aria-hidden
src="/file.svg"
alt="File icon"
width={16}
height={16}
/>
Learn
</a>
<a
className="flex items-center gap-2 hover:underline hover:underline-offset-4"
href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
target="_blank"
rel="noopener noreferrer"
>
<Image
aria-hidden
src="/window.svg"
alt="Window icon"
width={16}
height={16}
/>
Examples
</a>
<a
className="flex items-center gap-2 hover:underline hover:underline-offset-4"
href="https://nextjs.org?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
target="_blank"
rel="noopener noreferrer"
>
<Image
aria-hidden
src="/globe.svg"
alt="Globe icon"
width={16}
height={16}
/>
Go to nextjs.org
</a>
</footer>
{/* Feed Section */}
<main>
{isLoading ? (
<p className="text-center text-gray-600">Loading feed...</p>
) : error ? (
<div className="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded-lg text-center">
<p>{error}</p>
</div>
) : thoughts.length === 0 ? (
<p className="text-center text-gray-600">
The feed is empty. Follow some users to see their thoughts!
</p>
) : (
<div className="space-y-4">
{thoughts.map((thought) => (
<div
key={thought.id}
className="bg-white/80 backdrop-blur-lg rounded-xl shadow-lg p-4 transition-transform hover:scale-[1.02]"
>
<div className="flex items-center mb-2">
<div className="w-10 h-10 rounded-full bg-gradient-to-br from-green-300 to-sky-400 flex items-center justify-center font-bold text-white mr-3">
{/* Placeholder for avatar */}
{thought.author_id}
</div>
<div>
<p className="font-bold">User {thought.author_id}</p>
<p className="text-xs text-gray-500">
{new Date(thought.created_at).toLocaleString()}
</p>
</div>
</div>
<p className="text-gray-800 break-words">{thought.content}</p>
</div>
))}
</div>
)}
</main>
</div>
</div>
);
}