I have created a droplet and installed a Mosquitto MQTT broker so our sensor would send data to the cloud/droplet. So far so good as we can see the sensor data in the droplet console. Question: how can we “transfer” sensor data from the droplet console to the mongodb database ? I...
There are many things you can monitor in a MongoDB environment, but a few key areas will tip you off quickly if something is amiss. You should be analyzing the following metrics: Replication lag. Replication lag refers to delays in copying data from the primary node to a secondary node. ...
Working with DataDrivers node-js Somtochukwu_Kelvin_Akuche(Somtochukwu Kelvin Akuche)September 7, 2023, 4:14am1 Good day hope u are having a nice day and a blessed month My issue is that after clicking ctrl+ s, to run my code and connect to MongoDB on port 5000 it showed some erro...
Let us look at concat functionconcat("first_name", ' ', "last_name"). The concat function is a MongoDB string aggregation operators. Through mapping SQL functions to MongoDB operators, NoSQLBooster for MongoDB allows you to use all MongoDB aggregation operators as SQL functions in you SQL...
absolutely. node has excellent support for interacting with databases. you can use libraries like mongoose for mongodb, sequelize for structured query language (sql) databases, or firebase for a nosql database. these libraries provide convenient apis to connect, query, and manipulate data in your...
● mongodb.service - An object/document-oriented database Loaded: loaded (/lib/systemd/system/mongodb.service; enabled; vendor preset: enabled) Active:active (running)since Thu 2019-01-31 21:07:25 UTC; 21min ago ... Next, open the Mongo shell to create your user: ...
For this to work, you might need a tool to monitor MongoDB logs and send notifications in real time. This is where a log management tool like SolarWinds® Loggly® can help. Loggly provides a variety of ways to quickly visualize and analyze log data. This lets you organize, search, ...
Code to connect this way: var DATABASE_URL = process.env.MONGODB_DATABASE_URL || mongodb.DEFAULT_URL; mongo_connect(DATABASE_URL, mongodb_server_options, function(err, db) { if(db && !err) { console.log("connected to mongodb" + " " + lobby_db); ...
One of the challenges that comes with moving to MongoDB is figuring how to best model your data. While most developers have internalized the rules of thumb for designing schemas for RDBMSs, these rules don't always apply to MongoDB. The simple fact that
How to check email address already exist in MongoDB database ? How to check for duplicate? How to check for same value in collection of objects How to check if a window.locaton.href is successful loaded? How to check if form authentication cookie has expired in your custom authorize How...