Replace manual response with HTTPException for errors, validate URLs

api.py

@@ -1,8 +1,9 @@
-from fastapi import FastAPI, Response
+from fastapi import FastAPI, HTTPException
 from fastapi.responses import RedirectResponse, FileResponse
 from fastapi.staticfiles import StaticFiles
 import couchdb
 import uuid
+import validators
 
 app = FastAPI()
 app.mount("/static", StaticFiles(directory="static", html=True), name="static")
@@ -26,29 +27,31 @@ async def read_urls():
     return [ { id: db[id].get('full_url') } for id in db ]
 
 @app.get("/api/v1/urls/{url_id}")
-async def read_url(url_id, response: Response):
+async def read_url(url_id):
     db = couch["urls"]
     if url_id in db:
         return db[url_id]
     else:
-        response.status_code = 404
-        return { "error": "Url not found" }
+        raise HTTPException(status_code=404, detail="Url not found")
 
 # TODO: Throttle
 # TODO: If user not found, generate a new JWT
 @app.put("/api/v1/urls")
 async def create_url(body: dict):
-    db = couch["urls"]
-    url_id = uuid.uuid4().hex[:6]
-    db[url_id] = { "full_url": body["url"], "user_id": body["username"] }
-    return 
+    if validators.url(body["url"]):
+        db = couch["urls"]
+        # TODO: Calculate how many unique IDs we are actually generating
+        url_id = uuid.uuid4().hex[:6]
+        db[url_id] = { "full_url": body["url"], "user_id": body["username"] }
+        return { "shortenedUrl": "http://localhost:8000/" + url_id }
+    else:
+        raise HTTPException(status_code=400, detail="Url provided is invalid")
 
 @app.delete("/api/v1/urls/{url_id}")
-async def delete_url(url_id, response: Response):
+async def delete_url(url_id):
     db = couch["urls"]
     if url_id in db:
         del db[url_id]
         return { "message": "Url deleted" }
     else:
-        response.status_code = 404
-        return { "error": "Url not found" }
+        raise HTTPException(status_code=404, detail="Url not found")

requirements.txt

@@ -2,3 +2,4 @@ fastapi
 uvicorn
 couchdb
 aiofiles
+validators

static/index.html

@@ -10,7 +10,8 @@
     <h1>Zip My Link</h1>
     <p>Type your long URL into the box and get a shorter URL back!</p>
     <input type="text" id="url-input" placeholder="Enter your URL here">
-    <button onclick="submitUrl()">Shorten Url</button>
+    <button onclick="shortenUrl()" id="submit-btn">Shorten Url</button>
     <p id="result"></p>
+    <script src="static/main.js"></script>
   </body>
 </html>

static/main.js

@@ -0,0 +1,20 @@
+async function shortenUrl() {
+    const url = document.getElementById("url-input").value;
+    const btn = document.getElementById("submit-btn").value;
+    // btn.enab
+    const response = await fetch("/api/v1/urls", {
+        method: 'PUT',
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ url: url, username: "anonymous" })
+    });
+    const data = await response.json();
+    const resultElement = document.getElementById("result");
+
+    if (response.ok) {
+        resultElement.textContent = `Shortened Url: ${data.shortenedUrl}`
+        resultElement.style.color = "black";
+    } else {
+        resultElement.textContent = `Error: ${data.detail}`
+        resultElement.style.color = "red";
+    }
+}