Created
December 17, 2018 12:50
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const mongodb = require("mongodb"); | |
run().catch(error => console.error(error)); | |
async function run() { | |
console.log(new Date(), "Connecting to localhost"); | |
const uri = "mongodb://127.0.0.1:27017/test?replicaSet=repl0"; | |
const client = await mongodb.MongoClient.connect( | |
uri, | |
function(err, client) { | |
if (err) throw err; | |
const db = client.db("IoTData"); | |
const Filter = [ | |
{ | |
$match: { | |
operationType: { $in: ["insert"] }, | |
"fullDocument.cameraImage": { $exists: true } | |
} | |
} | |
]; | |
console.log(new Date(), "Watching for changes..."); | |
db.collection("SecurityApp") | |
.watch(Filter) | |
.on("change", data => { | |
console.log(new Date(), "Camera Image Attached to Document!"); | |
}); | |
} | |
); | |
} | |
/* Make sure you are using at least MongoDB NodeJS Driver 3.0 and above | |
{ | |
"name": "detectnewfield", | |
"version": "1.0.0", | |
"description": "Detects New Field", | |
"main": "DetectHighTemp.js", | |
"scripts": { | |
"debug": "node DetectNewField.js" | |
}, | |
"author": "Rob Walters", | |
"license": "MIT", | |
"dependencies": { | |
"mongodb": "^3.1.0" | |
} | |
}*/ |
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