我的 findOne() 实现有什么问题？

Question

我已遵循搜索中的所有基本教程来解决此问题。我的 collection.findOne({_id: ctx.params.id}) 实现不起作用。

// import statements for version transparancy, they are not really used here
import { MongoClient } from "https://deno.land/x/[email protected]/mod.ts";
import { Application, Router } from "https://deno.land/x/[email protected]/mod.ts";

// ...
const recipes = db.collection<Recipe>("recipes");

// ...
router.get("/rec/:id", async (ctx) => {
    const id = ctx.params.id;
    const recipe = await recipes.findOne({ _id: { $oid: id } });
    // const recipe = await recipes.findOne({_id: id});

    if (recipe) {
        ctx.response.status = 200;
        ctx.response.body = recipe;
    } else {
        ctx.response.status = 404;
        ctx.response.body = { message: "No recipe found" };
    }
});

当前是否存在我不知道的错误？

当我使用 http://localhost:5000/rec/622b6be81089abbc4b4144a1 调用该端点（是的，该 ID 在我的数据库中）时，我收到内部服务器错误 (500)，并显示以下消息：

[uncaught application error]: Error - MongoError: {"ok":0,"errmsg":"unknown operator: $oid","code":2,"codeName":"BadValue"}

request: {
  url: "http://localhost:5000/rec/622b6be81089abbc4b4144a1",
  method: "GET",
  hasBody: false
}
response: { status: 404, type: undefined, hasBody: false, writable: true }

    at WireProtocol.commandSingle (https://deno.land/x/[email protected]/src/protocol/protocol.ts:44:13)
    at async FindCursor.executor (https://deno.land/x/[email protected]/src/collection/commands/find.ts:17:24)
    at async FindCursor.execute (https://deno.land/x/[email protected]/src/protocol/cursor.ts:34:21)
    at async FindCursor.next (https://deno.land/x/[email protected]/src/protocol/cursor.ts:48:7)
    at async file:///home/andy/dev/deno/denodb/routes.ts:42:20
    at async dispatch (https://deno.land/x/[email protected]/middleware.ts:41:7)
    at async dispatch (https://deno.land/x/[email protected]/middleware.ts:41:7)
    at async dispatch (https://deno.land/x/[email protected]/middleware.ts:41:7)
    at async Application.#handleRequest (https://deno.land/x/[email protected]/application.ts:376:9)

降级版本也没有帮助。