Crate dynomite[−][src]
Dynomite provides a set of interfaces built on top of rusoto_dynamodb which make working with aws Dynamodb more productive in rust.
Dynamodb is a nosql database aws offers as a managed service. It's abstractions include a table comprised of a collection of items which are a composed of a collection of named attributes which can be one of a finite set of types. You can learn more about its core components here
Rusoto provides an excellent set of
interfaces for interacting with the dynamodb API. It's representation
of Items is essentially a HashMap of String
to AttributeValue
types which fits dynamodb's nosql contract well.
AttributeValues are able to represent multiple types of values in a
single container type.
However, when programming in rust we're afforded stricter, more concise typing tools than HashMaps when working with data. Dynomite is intended to make those types interface more transparently with rusoto item type apis.
Dynomite provides a set of building blocks for making interactions with dynamodb feel more natural for rust's native types.
At a low level, Attribute type implementations provide conversion interfaces to and from native rust types which represent dynamodb's notion of "attributes".
At a higher level, Item type implementations provide converstion interfaces for complex types which represent dynamodb's notion of "items".
You can optionally opt into having Item types derived for you by using
the dynomite-derive crate,
which utilizes a technique you may be familiar
with if you've ever worked with serde.
Errors
Operations that may fail typically result in an AttributeError. These errors were designed to work well with the failure crate ecosystem.
Cargo Features
This crate has one Cargo feature, "uuid",
which adds support for implementing Attribute for
the uuid crate type Uuid, a useful
type for producing and representing
unique identifiers for items. This feature is enabled by default.
Re-exports
pub extern crate rusoto_dynamodb as dynamodb; |
pub use error::AttributeError; |
Modules
| error |
Dynomite error types |
Macros
| attr_map |
Create a |
Traits
| Attribute |
A type capable of being converted into an attrbute value or converted from
an |
| DynamoDbExt |
Exention methods for DynamoDb implementations |
| FromAttributes |
A type capable of being produced from
a set of string keys and |
| Item |
A type which can be represented as a set of string keys and
|
Type Definitions
| Attributes |
type alias for map of named attribute values |