pca2/weightCheck.js

## weight_tracker.html
<html>
  <head>
    <script src="https://s3.amazonaws.com/stitch-sdks/js/bundles/4.0.0/stitch.js"></script>
    <script>
      // Initialize the App Client
      const client = stitch.Stitch.initializeDefaultAppClient("INSERT-YOUR-APP-ID");
      // Get a MongoDB Service Client
      const mongodb = client.getServiceClient(
        stitch.RemoteMongoClient.factory,
        "mongodb-atlas"
      );
      // Get a reference to the blog database
      const db = mongodb.db("Weight");

      function displayWeights() {
        db.collection("weights")
          .find({}, { limit: 1000 })
          .asArray()
          .then(docs => docs.map(doc => `<tr><td>${doc.weight}</td></tr>`))
          .then(weights =>  document.getElementById("weights").innerHTML = weights.join(" ") )
      }

      function displayWeightsOnLoad() {
        client.auth
          .loginWithCredential(new stitch.AnonymousCredential())
          .then(displayWeights)
          .catch(console.error);
      }

      function addWeight() {
        const newWeight = document.getElementById("new_weight");
        console.log("add weight", client.auth.user.id)
        db.collection("weights")
          .insertOne({ owner_id: client.auth.user.id, weight: newWeight.value })
          .then(displayWeights);
        newWeight.value = "";
      }
    </script>
  </head>

  <body onLoad="displayWeightsOnLoad()">
    <h3>Weight Tracker 3000</h3>
    <div id="content">
      Keep track of your weight with our nifty website
    </div>
    <hr>
    <table id="weights"></table>
    <hr>
    Add a new weight: <input id="new_weight" type="number"><input value="Submit Weight" type="submit" onClick="addWeight()">
  </body>

</html>

## weightCheck.js
exports = function(changeEvent) {
   const http = context.services.get("wt_http_service");
   const newWeight = changeEvent.fullDocument.weight;
   const thresholdWeight = 145;
   const slackURL = 'https://hooks.slack.com/services/T8MHO2QSKK/BW8EFN/B5nKgGZYLuZcKgvY8rNvzHE';
   const slackMsg = `Uh-oh a weight was posted of ${newWeight}, better lay off the pie`;

   if(newWeight < thresholdWeight ){
     return "Weight under threshold";
   } else {
     return http
       .post({ url: slackURL, body: JSON.stringify({"text": slackMsg})})
       .then(resp => {
         return resp;
       })
       .catch(err => console.log(err) );
   }
};
	<html>
	<head>
	<script src="https://s3.amazonaws.com/stitch-sdks/js/bundles/4.0.0/stitch.js"></script>
	<script>
	// Initialize the App Client
	const client = stitch.Stitch.initializeDefaultAppClient("INSERT-YOUR-APP-ID");
	// Get a MongoDB Service Client
	const mongodb = client.getServiceClient(
	stitch.RemoteMongoClient.factory,
	"mongodb-atlas"
	);
	// Get a reference to the blog database
	const db = mongodb.db("Weight");

	function displayWeights() {
	db.collection("weights")
	.find({}, { limit: 1000 })
	.asArray()
	.then(docs => docs.map(doc => `<tr><td>${doc.weight}</td></tr>`))
	.then(weights => document.getElementById("weights").innerHTML = weights.join(" ") )
	}

	function displayWeightsOnLoad() {
	client.auth
	.loginWithCredential(new stitch.AnonymousCredential())
	.then(displayWeights)
	.catch(console.error);
	}

	function addWeight() {
	const newWeight = document.getElementById("new_weight");
	console.log("add weight", client.auth.user.id)
	db.collection("weights")
	.insertOne({ owner_id: client.auth.user.id, weight: newWeight.value })
	.then(displayWeights);
	newWeight.value = "";
	}
	</script>
	</head>

	<body onLoad="displayWeightsOnLoad()">
	<h3>Weight Tracker 3000</h3>
	<div id="content">
	Keep track of your weight with our nifty website
	</div>
	<hr>
	<table id="weights"></table>
	<hr>
	Add a new weight: <input id="new_weight" type="number"><input value="Submit Weight" type="submit" onClick="addWeight()">
	</body>

	</html>
	exports = function(changeEvent) {
	const http = context.services.get("wt_http_service");
	const newWeight = changeEvent.fullDocument.weight;
	const thresholdWeight = 145;
	const slackURL = 'https://hooks.slack.com/services/T8MHO2QSKK/BW8EFN/B5nKgGZYLuZcKgvY8rNvzHE';
	const slackMsg = `Uh-oh a weight was posted of ${newWeight}, better lay off the pie`;

	if(newWeight < thresholdWeight ){
	return "Weight under threshold";
	} else {
	return http
	.post({ url: slackURL, body: JSON.stringify({"text": slackMsg})})
	.then(resp => {
	return resp;
	})
	.catch(err => console.log(err) );
	}
	};