change

app/api/qr/route.ts

@@ -0,0 +1,24 @@
+import { NextRequest } from "next/server";
+import QRCode from "qrcode";
+
+export const dynamic = "force-dynamic";
+
+export async function GET(req: NextRequest) {
+  const url = req.nextUrl.searchParams.get("url") || "";
+  if (!url) {
+    return new Response("Missing url", { status: 400 });
+  }
+
+  const png = await QRCode.toBuffer(url, {
+    width: 240,
+    margin: 1
+  });
+
+  const body = new Uint8Array(png);
+  return new Response(body, {
+    headers: {
+      "Content-Type": "image/png",
+      "Cache-Control": "public, max-age=86400"
+    }
+  });
+}

app/p/[slug]/page.tsx

@@ -3,6 +3,8 @@ import { MarkdownViewer } from "@/components/MarkdownViewer";
 import { notFound } from "next/navigation";
 import { normalizeImageUrl } from "@/lib/normalize";
 import { Post } from "@/types/post";
+import { SharePanel } from "@/components/SharePanel";
+import { getSiteUrl } from "@/lib/site";
 
 export const dynamic = "force-dynamic";
 
@@ -37,11 +39,15 @@ export default async function PostPage({ params }: Props) {
     notFound();
   }
   const coverUrl = normalizeImageUrl(post.cover);
+  const shareUrl = `${getSiteUrl()}/p/${post.slug}`;
 
   return (
     <article className="rounded-2xl bg-white/80 p-6 shadow-sm ring-1 ring-slate-100">
       <div className="mb-4">
+        <div className="flex flex-wrap items-center justify-between gap-3">
           <h1 className="text-2xl font-semibold text-slate-900">{post.title}</h1>
+          <SharePanel url={shareUrl} />
+        </div>
         <p className="mt-2 text-sm text-slate-500">
           {new Date(post.createdAt).toLocaleString("zh-CN", { hour12: false })}
         </p>

components/SharePanel.tsx

@@ -0,0 +1,103 @@
+"use client";
+
+import { useEffect, useMemo, useState } from "react";
+
+type Tab = "link" | "qr";
+
+export function SharePanel({ url }: { url: string }) {
+  const [open, setOpen] = useState(false);
+  const [tab, setTab] = useState<Tab>("link");
+  const [copied, setCopied] = useState(false);
+
+  const safeUrl = useMemo(() => url.trim(), [url]);
+
+  useEffect(() => {
+    if (!open) {
+      setCopied(false);
+      setTab("link");
+    }
+  }, [open]);
+
+  async function handleCopy() {
+    if (!safeUrl) return;
+    try {
+      await navigator.clipboard.writeText(safeUrl);
+      setCopied(true);
+      setTimeout(() => setCopied(false), 1500);
+    } catch {
+      setCopied(false);
+      alert("复制失败，请手动复制链接");
+    }
+  }
+
+  return (
+    <div className="relative">
+      <button
+        type="button"
+        onClick={() => setOpen((prev) => !prev)}
+        className="rounded-full bg-white/70 px-3 py-1 text-xs font-medium text-slate-700 ring-1 ring-slate-200 hover:text-brand-600"
+      >
+        分享
+      </button>
+
+      {open ? (
+        <div className="absolute right-0 top-10 z-20 w-72 rounded-2xl bg-white p-4 shadow-lg ring-1 ring-slate-200">
+          <div className="flex items-center justify-between">
+            <div className="flex gap-2 text-xs">
+              <button
+                type="button"
+                onClick={() => setTab("link")}
+                className={`rounded-full px-3 py-1 ${tab === "link" ? "bg-brand-50 text-brand-700 ring-1 ring-brand-100" : "text-slate-500 hover:text-brand-600"}`}
+              >
+                链接
+              </button>
+              <button
+                type="button"
+                onClick={() => setTab("qr")}
+                className={`rounded-full px-3 py-1 ${tab === "qr" ? "bg-brand-50 text-brand-700 ring-1 ring-brand-100" : "text-slate-500 hover:text-brand-600"}`}
+              >
+                二维码
+              </button>
+            </div>
+            <button
+              type="button"
+              onClick={() => setOpen(false)}
+              className="text-xs text-slate-400 hover:text-slate-600"
+            >
+              关闭
+            </button>
+          </div>
+
+          {tab === "link" ? (
+            <div className="mt-4 space-y-3">
+              <input
+                readOnly
+                value={safeUrl}
+                className="w-full rounded-xl border border-slate-200 bg-slate-50 px-3 py-2 text-xs text-slate-700"
+              />
+              <button
+                type="button"
+                onClick={handleCopy}
+                className="w-full rounded-full bg-brand-600 px-3 py-2 text-xs font-medium text-white hover:bg-brand-700"
+              >
+                {copied ? "已复制" : "复制链接"}
+              </button>
+            </div>
+          ) : (
+            <div className="mt-4 flex flex-col items-center gap-3">
+              <div className="rounded-2xl border border-slate-100 bg-slate-50 p-3">
+                <img
+                  src={`/api/qr?url=${encodeURIComponent(safeUrl)}`}
+                  alt="QR"
+                  className="h-40 w-40"
+                  loading="lazy"
+                />
+              </div>
+              <p className="text-xs text-slate-500">扫码查看本篇内容</p>
+            </div>
+          )}
+        </div>
+      ) : null}
+    </div>
+  );
+}

lib/mongo.ts

@@ -1,11 +1,14 @@
 import { Db, MongoClient } from "mongodb";
 
-const uri = process.env.MONGODB_URI;
 const dbName = process.env.MONGODB_DB || "pushinfo";
 
+function getMongoUri(): string {
+  const uri = process.env.MONGODB_URI;
   if (!uri) {
     throw new Error("Missing MONGODB_URI in environment variables");
   }
+  return uri;
+}
 
 let client: MongoClient | null = null;
 let db: Db | null = null;
@@ -14,11 +17,9 @@ export async function getDb(): Promise<Db> {
   if (db) return db;
 
   if (!client) {
-    client = new MongoClient(uri, { serverSelectionTimeoutMS: 5000 });
+    client = new MongoClient(getMongoUri(), { serverSelectionTimeoutMS: 5000 });
   }
-  if (!client.topology?.isConnected()) {
   await client.connect();
-  }
   db = client.db(dbName);
   return db;
 }

package-lock.json

@@ -13,6 +13,7 @@
         "gray-matter": "^4.0.3",
         "mongodb": "^6.5.0",
         "next": "14.2.0",
+        "qrcode": "^1.5.3",
         "react": "18.2.0",
         "react-dom": "18.2.0",
         "react-markdown": "^9.0.1",
@@ -1151,7 +1152,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmmirror.com/ansi-regex/-/ansi-regex-5.0.1.tgz",
       "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -1161,7 +1161,6 @@
       "version": "4.3.0",
       "resolved": "https://registry.npmmirror.com/ansi-styles/-/ansi-styles-4.3.0.tgz",
       "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "color-convert": "^2.0.1"
@@ -1651,6 +1650,15 @@
         "node": ">=6"
       }
     },
+    "node_modules/camelcase": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmmirror.com/camelcase/-/camelcase-5.3.1.tgz",
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/camelcase-css": {
       "version": "2.0.1",
       "resolved": "https://registry.npmmirror.com/camelcase-css/-/camelcase-css-2.0.1.tgz",
@@ -1789,11 +1797,55 @@
       "integrity": "sha512-IV3Ou0jSMzZrd3pZ48nLkT9DA7Ag1pnPzaiQhpW7c3RbcqqzvzzVu+L8gfqMp/8IM2MQtSiqaCxrrcfu8I8rMA==",
       "license": "MIT"
     },
+    "node_modules/cliui": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmmirror.com/cliui/-/cliui-6.0.0.tgz",
+      "integrity": "sha512-t6wbgtoCXvAzst7QgXxJYqPt0usEfbgQdftEPbLL/cvv6HPE5VgvqCuAIDR0NgU52ds6rFwqrgakNLrHEjCbrQ==",
+      "license": "ISC",
+      "dependencies": {
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.0",
+        "wrap-ansi": "^6.2.0"
+      }
+    },
+    "node_modules/cliui/node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmmirror.com/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "license": "MIT"
+    },
+    "node_modules/cliui/node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmmirror.com/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/cliui/node_modules/wrap-ansi": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmmirror.com/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
+      "integrity": "sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==",
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "resolved": "https://registry.npmmirror.com/color-convert/-/color-convert-2.0.1.tgz",
       "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "color-name": "~1.1.4"
@@ -1806,7 +1858,6 @@
       "version": "1.1.4",
       "resolved": "https://registry.npmmirror.com/color-name/-/color-name-1.1.4.tgz",
       "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/comma-separated-tokens": {
@@ -1946,6 +1997,15 @@
         }
       }
     },
+    "node_modules/decamelize": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/decamelize/-/decamelize-1.2.0.tgz",
+      "integrity": "sha512-z2S+W9X73hAUUki+N+9Za2lBlun89zigOyGrsax+KUQ6wKW4ZoWpEYBkGhQjwAjjDCkWxhY0VKEhk8wzY7F5cA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/decode-named-character-reference": {
       "version": "1.3.0",
       "resolved": "https://registry.npmmirror.com/decode-named-character-reference/-/decode-named-character-reference-1.3.0.tgz",
@@ -2030,6 +2090,12 @@
       "integrity": "sha512-gxtyfqMg7GKyhQmb056K7M3xszy/myH8w+B4RT+QXBQsvAOdc3XymqDDPHx1BgPgsdAA5SIifona89YtRATDzw==",
       "license": "Apache-2.0"
     },
+    "node_modules/dijkstrajs": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmmirror.com/dijkstrajs/-/dijkstrajs-1.0.3.tgz",
+      "integrity": "sha512-qiSlmBq9+BCdCA/L46dw8Uy93mloxsPSbwnm5yrKn2vMPiy8KyAskTF6zuV/j5BMsmOGZDPs7KjU+mjb670kfA==",
+      "license": "MIT"
+    },
     "node_modules/dir-glob": {
       "version": "3.0.1",
       "resolved": "https://registry.npmmirror.com/dir-glob/-/dir-glob-3.0.1.tgz",
@@ -3030,6 +3096,15 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmmirror.com/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+      "license": "ISC",
+      "engines": {
+        "node": "6.* || 8.* || >= 10.*"
+      }
+    },
     "node_modules/get-intrinsic": {
       "version": "1.3.0",
       "resolved": "https://registry.npmmirror.com/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
@@ -3726,7 +3801,6 @@
       "version": "3.0.0",
       "resolved": "https://registry.npmmirror.com/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
       "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -5616,6 +5690,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/p-try": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/p-try/-/p-try-2.2.0.tgz",
+      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/parent-module": {
       "version": "1.0.1",
       "resolved": "https://registry.npmmirror.com/parent-module/-/parent-module-1.0.1.tgz",
@@ -5658,7 +5741,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmmirror.com/path-exists/-/path-exists-4.0.0.tgz",
       "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -5753,6 +5835,15 @@
         "node": ">= 6"
       }
     },
+    "node_modules/pngjs": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmmirror.com/pngjs/-/pngjs-5.0.0.tgz",
+      "integrity": "sha512-40QW5YalBNfQo5yRYmiw7Yz6TKKVr3h6970B2YE+3fQpsWcrbj1PzJgxeJ19DRQjhMbKPIuMY8rFaXc8moolVw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.13.0"
+      }
+    },
     "node_modules/possible-typed-array-names": {
       "version": "1.1.0",
       "resolved": "https://registry.npmmirror.com/possible-typed-array-names/-/possible-typed-array-names-1.1.0.tgz",
@@ -5973,6 +6064,23 @@
         "node": ">=6"
       }
     },
+    "node_modules/qrcode": {
+      "version": "1.5.4",
+      "resolved": "https://registry.npmmirror.com/qrcode/-/qrcode-1.5.4.tgz",
+      "integrity": "sha512-1ca71Zgiu6ORjHqFBDpnSMTR2ReToX4l1Au1VFLyVeBTFavzQnv5JxMFr3ukHVKpSrSA2MCk0lNJSykjUfz7Zg==",
+      "license": "MIT",
+      "dependencies": {
+        "dijkstrajs": "^1.0.1",
+        "pngjs": "^5.0.0",
+        "yargs": "^15.3.1"
+      },
+      "bin": {
+        "qrcode": "bin/qrcode"
+      },
+      "engines": {
+        "node": ">=10.13.0"
+      }
+    },
     "node_modules/queue-microtask": {
       "version": "1.2.3",
       "resolved": "https://registry.npmmirror.com/queue-microtask/-/queue-microtask-1.2.3.tgz",
@@ -6183,6 +6291,21 @@
         "url": "https://opencollective.com/unified"
       }
     },
+    "node_modules/require-directory": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmmirror.com/require-directory/-/require-directory-2.1.1.tgz",
+      "integrity": "sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/require-main-filename": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/require-main-filename/-/require-main-filename-2.0.0.tgz",
+      "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+      "license": "ISC"
+    },
     "node_modules/resolve": {
       "version": "1.22.11",
       "resolved": "https://registry.npmmirror.com/resolve/-/resolve-1.22.11.tgz",
@@ -6385,6 +6508,12 @@
         "node": ">=10"
       }
     },
+    "node_modules/set-blocking": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/set-blocking/-/set-blocking-2.0.0.tgz",
+      "integrity": "sha512-KiKBS8AnWGEyLzofFfmvKwpdPzqiy16LvQfK3yv/fVH7Bj13/wl3JSR1J+rfgRE9q7xUJK4qvgS8raSOeLUehw==",
+      "license": "ISC"
+    },
     "node_modules/set-function-length": {
       "version": "1.2.2",
       "resolved": "https://registry.npmmirror.com/set-function-length/-/set-function-length-1.2.2.tgz",
@@ -6820,7 +6949,6 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmmirror.com/strip-ansi/-/strip-ansi-6.0.1.tgz",
       "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-regex": "^5.0.1"
@@ -7613,6 +7741,12 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/which-module": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmmirror.com/which-module/-/which-module-2.0.1.tgz",
+      "integrity": "sha512-iBdZ57RDvnOR9AGBhML2vFZf7h8vmBjhoaZqODJBFWHVtKkDmKuHai3cx5PgVMrX5YDNp27AofYbAwctSS+vhQ==",
+      "license": "ISC"
+    },
     "node_modules/which-typed-array": {
       "version": "1.1.20",
       "resolved": "https://registry.npmmirror.com/which-typed-array/-/which-typed-array-1.1.20.tgz",
@@ -7753,6 +7887,119 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/y18n": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmmirror.com/y18n/-/y18n-4.0.3.tgz",
+      "integrity": "sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ==",
+      "license": "ISC"
+    },
+    "node_modules/yargs": {
+      "version": "15.4.1",
+      "resolved": "https://registry.npmmirror.com/yargs/-/yargs-15.4.1.tgz",
+      "integrity": "sha512-aePbxDmcYW++PaqBsJ+HYUFwCdv4LVvdnhBy78E57PIor8/OVvhMrADFFEDh8DHDFRv/O9i3lPhsENjO7QX0+A==",
+      "license": "MIT",
+      "dependencies": {
+        "cliui": "^6.0.0",
+        "decamelize": "^1.2.0",
+        "find-up": "^4.1.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^4.2.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^18.1.2"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs-parser": {
+      "version": "18.1.3",
+      "resolved": "https://registry.npmmirror.com/yargs-parser/-/yargs-parser-18.1.3.tgz",
+      "integrity": "sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==",
+      "license": "ISC",
+      "dependencies": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/yargs/node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmmirror.com/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "license": "MIT"
+    },
+    "node_modules/yargs/node_modules/find-up": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmmirror.com/find-up/-/find-up-4.1.0.tgz",
+      "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+      "license": "MIT",
+      "dependencies": {
+        "locate-path": "^5.0.0",
+        "path-exists": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs/node_modules/locate-path": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmmirror.com/locate-path/-/locate-path-5.0.0.tgz",
+      "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+      "license": "MIT",
+      "dependencies": {
+        "p-locate": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs/node_modules/p-limit": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmmirror.com/p-limit/-/p-limit-2.3.0.tgz",
+      "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+      "license": "MIT",
+      "dependencies": {
+        "p-try": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/yargs/node_modules/p-locate": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmmirror.com/p-locate/-/p-locate-4.1.0.tgz",
+      "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+      "license": "MIT",
+      "dependencies": {
+        "p-limit": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs/node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmmirror.com/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/yocto-queue": {
       "version": "0.1.0",
       "resolved": "https://registry.npmmirror.com/yocto-queue/-/yocto-queue-0.1.0.tgz",

package.json

@@ -14,6 +14,7 @@
     "gray-matter": "^4.0.3",
     "mongodb": "^6.5.0",
     "next": "14.2.0",
+    "qrcode": "^1.5.3",
     "react": "18.2.0",
     "react-dom": "18.2.0",
     "react-markdown": "^9.0.1",
@@ -25,6 +26,7 @@
     "@types/node": "^20.11.28",
     "@types/react": "^18.2.63",
     "@types/react-dom": "^18.2.19",
+    "@types/qrcode": "^1.5.5",
     "eslint": "^8.57.0",
     "eslint-config-next": "14.2.0",
     "postcss": "^8.4.35",

types/qrcode.d.ts

@@ -0,0 +1,15 @@
+declare module "qrcode" {
+  export type QRCodeToBufferOptions = {
+    width?: number;
+    margin?: number;
+    errorCorrectionLevel?: "L" | "M" | "Q" | "H";
+  };
+
+  export function toBuffer(text: string, options?: QRCodeToBufferOptions): Promise<Buffer>;
+
+  const QRCode: {
+    toBuffer: typeof toBuffer;
+  };
+
+  export default QRCode;
+}