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
Which should output something like:
Copy 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
Copy JetStream Account Information:
JetStream is not supported in this account 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
Copy nats object add myobjbucket which outputs
Copy myobjbucket Object Store Status
Bucket Name: myobjbucket
Replicas: 1
TTL: unlimitd
Sealed: false
Size: 0 B
Backing Store Kind: JetStream
JetStream Stream: OBJ_myobjbucket Putting a file in the bucket
Copy nats object put myobjbucket ~/Movies/NATS-logo.mov
Copy 1.5 GiB / 1.5 GiB [====================================================================================]
Object information for myobjbucket > /Users/jnmoyne/Movies/NATS-logo.mov
Size: 1.5 GiB
Modification Time: 14 Apr 22 00:34 +0000
Chunks: 12,656
Digest: sha-256 8ee0679dd1462de393d81a3032d71f43d2bc89c0c8a557687cfe2787e926 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
Copy nats object put --name /Movies/NATS-logo.mov myobjbucket ~/Movies/NATS-logo.mov
Copy 1.5 GiB / 1.5 GiB [====================================================================================]
Object information for myobjbucket > /Movies/NATS-logo.mov
Size: 1.5 GiB
Modification Time: 14 Apr 22 00:34 +0000
Chunks: 12,656
Digest: sha-256 8ee0679dd1462de393d81a3032d71f43d2bc89c0c8a557687cfe2787e926 Listing the objects in a bucket
Copy nats object ls myobjbucket
Copy ╭───────────────────────────────────────────────────────────────────────────╮
│ Bucket Contents │
├─────────────────────────────────────┬─────────┬───────────────────────────┤
│ Name │ Size │ Time │
├─────────────────────────────────────┼─────────┼───────────────────────────┤
│ /Users/jnmoyne/Movies/NATS-logo.mov │ 1.5 GiB │ 2022-04-13T17:34:55-07:00 │
│ /Movies/NATS-logo.mov │ 1.5 GiB │ 2022-04-13T17:35:41-07:00 │
╰─────────────────────────────────────┴─────────┴───────────────────────────╯ Getting an object from the bucket
Copy nats object get myobjbucket ~/Movies/NATS-logo.mov
Copy 1.5 GiB / 1.5 GiB [====================================================================================]
Wrote: 1.5 GiB to /Users/jnmoyne/NATS-logo.mov in 5.68s average 279 MiB/s 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
Copy nats object get myobjbucket --output /temp/Movies/NATS-logo.mov /Movies/NATS-logo.mov
Copy 1.5 GiB / 1.5 GiB [====================================================================================]
Wrote: 1.5 GiB to /temp/Movies/NATS-logo.mov in 5.68s average 279 MiB/s Removing an object from the bucket
Copy nats object rm myobjbucket ~/Movies/NATS-logo.mov
Copy ? Delete 1.5 GiB byte file myobjbucket > /Users/jnmoyne/Movies/NATS-logo.mov? Yes
Removed myobjbucket > /Users/jnmoyne/Movies/NATS-logo.mov
myobjbucket Object Store Status
Bucket Name: myobjbucket
Replicas: 1
TTL: unlimitd
Sealed: false
Size: 16 MiB
Backing Store Kind: JetStream
JetStream Stream: OBJ_myobjbucket
Copy nats object info myobjbucket
Copy myobjbucket Object Store Status
Bucket Name: myobjbucket
Replicas: 1
TTL: unlimitd
Sealed: false
Size: 1.6 GiB
Backing Store Kind: JetStream
JetStream Stream: OBJ_myobjbucket Watching for changes to a bucket
Copy nats object watch myobjbucket
Copy [2022-04-13 17:51:28] PUT myobjbucket > /Users/jnmoyne/Movies/NATS-logo.mov: 1.5 GiB bytes in 12,656 chunks
[2022-04-13 17:53:27] DEL myobjbucket > /Users/jnmoyne/Movies/NATS-logo.mov Sealing a bucket
You can seal a bucket, meaning that no further changes are allowed on that bucket
Copy nats object seal myobjbucket
Copy ? Really seal Bucket myobjbucket, sealed buckets can not be unsealed or modified Yes
myobjbucket has been sealed
myobjbucket Object Store Status
Bucket Name: myobjbucket
Replicas: 1
TTL: unlimitd
Sealed: true
Size: 1.6 GiB
Backing Store Kind: JetStream
JetStream Stream: OBJ_myobjbucket Deleting a bucket
Using nats object rm myobjbucket will delete the bucket and all the files stored in it.
Last updated 11 months ago
