In this tutorial, let us take a quick look at how to get started with MongoDB with a Hello World! example,
- Make sure MongoDB has been installed on your system, if not follow the article: Installing MongoDB
- Start the mongod server,
# modgod MongoDB starting : pid=5249 port=27017 dbpath=/data/db 64-bit host=b2391b608026 db version v3.6.8 waiting for connections on port 27017
- Now start the MongoDB shell using mongo command,
# mongo MongoDB shell version v3.6.8 connecting to: mongodb://127.0.0.1:27017 Implicit session: session { "id" : UUID("bc22e919-c624-40bc-9f99-5ce94de57e2c") } MongoDB server version: 3.6.8
- Now lets create our first MongoDB Database using command use your-new-db-name,
# use myMongoDb switched to db myMongoDb
- Lets create our first MongoDB document called: messages, and add the "Hello World!" message,
db.myMongoDb.messages.insert({id:1,"message":"Hello World!"}); WriteResult({ "nInserted" : 1 })
- Lets print our message, by find method,
> db.myMongoDb.messages.find({id:1}); { "_id" : ObjectId("6250a4d85a0cb8937f46272f"), "id" : 1, "message" : "Hello World!" } >
Congratulations! You have completed the MongoDB "Hello World!" example!
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