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Add bucket retrieve example to README

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Signed-off-by: Cenk Alti <cenkalti@gmail.com>
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Cenk Alti 2023-05-16 16:04:31 -04:00
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commit 6ec43f8da3
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@ -296,6 +296,17 @@ db.Update(func(tx *bolt.Tx) error {
}) })
``` ```
You can retrieve an existing bucket using the `Tx.Bucket()` function:
```go
db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte("MyBucket"))
if b == nil {
return fmt.Errorf("bucket does not exist")
}
return nil
})
```
You can also create a bucket only if it doesn't exist by using the You can also create a bucket only if it doesn't exist by using the
`Tx.CreateBucketIfNotExists()` function. It's a common pattern to call this `Tx.CreateBucketIfNotExists()` function. It's a common pattern to call this
function for all your top-level buckets after you open your database so you can function for all your top-level buckets after you open your database so you can