dynamo

dynamo is a dead-simple CLI for AWS DynamoDB.

Installation

• Mac: brew install glassechidna/taps/dynamo
• Windows: scoop bucket add glassechidna https://github.com/glassechidna/scoop-bucket.git; scoop install dynamo
• Otherwise get the latest build from the Releases tab.

Usage

dynamo [-n COUNT] [--dax CLUSTER] [table-name [partition key value [sort key value-or-expression]]]

• If no table name is specified, all tables are listed.
• If only a table name is specified, every row will be scanned.
• If a table name and partition key are provided, either:
  • That item will be returned (for single-key schemas)
  • All matching items will be returned (for partition+sort key schemas)
• If a table name, partition key and sort key are provided, only the matching item will be returned.

In place of a constant sort key, you can also type:

• > someval - all items with sort key value greater than someval
• >= someval - as above, but "greater than or equal to"
• <= someval - as above, but "less than or equal to"
• < someval - as above, but "less than"
• between val1 val2 - all items with sort keys between val1 and val2
• someval* - all items with sort keys that begin with someval

By default, only 10 items will be returned -- this is to avoid accidentally downloading an entire table! This can be controlled with the -n 30 flag. Passing -n 0 disables the limit.

DynamoDB Accelerator (DAX) clusters are also supported. Pass --dax cluster-name or --dax cluster-address:port to take advantage of this.

Finally, output is pretty-printed and colourised when executed directly. If executed as part of a script (as determined by isatty), output will be one-item-per-line in JSON Lines format.