'Nullified' entity utilizing MongoDB and Express

Upon attempting to print the client-side received object on the console using console.log(this.data), I am consistently encountering the issue of getting undefined. This prevents me from being able to access data.body and display the data stored in the database. Interestingly enough, when I print the object server-side, the correct JSON object is retrieved.

It's worth noting that I am sending the object with an HTTP status code of 200. Curiously, when artificially triggering a Bad Request (res.status(400).json(docs);), the json body is displayed correctly within an Error message.

In the client.ts file:

getEvents() {
    return new Promise(resolve => {
      this.http.get('http://www.mywebsite.com:8080/api/objects')
      .pipe(map(data => { })).subscribe(data => {
          this.data = data;
          console.log(this.data);
      });
    });   
}

And in the server.js file:

app.get("/api/objects", function (req, res) {
    db.collection(COLLECTION).find({})
    .toArray(function (err, docs) {
      if (err) {
        handleError(res, err.message, "Failed.");
      } else {
        console.log(docs);
        res.status(200).json(docs);
      }
    });
  });

Answer №1

Be certain to include a body-parser middleware, such as express.json() or another form of body-parser:

app.use(express.json())

Ensure this is placed above your route definitions!

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