Object Store Walkthrough

If you are running a local nats-server stop it and restart it with JetStream enabled using nats-server -js (if that's not already done)

You can then check that JetStream is enabled by using

nats account info

Which should output something like:

Connection Information:

               Client ID: 6
               Client IP: 127.0.0.1
                     RTT: 64.996µs
       Headers Supported: true
         Maximum Payload: 1.0 MiB
           Connected URL: nats://127.0.0.1:4222
       Connected Address: 127.0.0.1:4222
     Connected Server ID: ND2XVDA4Q363JOIFKJTPZW3ZKZCANH7NJI4EJMFSSPTRXDBFG4M4C34K

JetStream Account Information:

           Memory: 0 B of Unlimited
          Storage: 0 B of Unlimited
          Streams: 0 of Unlimited
        Consumers: 0 of Unlimited

If you see the below instead then JetStream is not enabled

Creating an Object Store bucket

Just like you need to create streams before you can use them you need to first create an Object Store bucket

which outputs

Putting a file in the bucket

Putting a file in the bucket by providing a name

By default the full file path is used as a key. Provide the key explicitly (e.g. a relative path ) with --name

Listing the objects in a bucket

Getting an object from the bucket

Getting an object from the bucket with a specific output path

By default, the file will be stored relative to the local path under its name (not the full path). To specify an output path use --output

Removing an object from the bucket

Getting information about the bucket

Watching for changes to a bucket

Sealing a bucket

You can seal a bucket, meaning that no further changes are allowed on that bucket

Deleting a bucket

Using nats object rm myobjbucket will delete the bucket and all the files stored in it.

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