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Package dynamodb-dal-bundle
Short Description A data abstraction layer for DynamoDB
License MIT
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Informations about the package dynamodb-dal-bundle
DynamoDB DAL Bundle
A data abstraction layer for DynamoDB, as a Symfony bundle.
Entities are plain PHP classes annotated with #[Table] and #[Field]. The bundle compiles them into definitions
when the container is built, then reads and writes them through AsyncAws. You work
with entities and PHP values; DynamoDB's attribute format stays inside the bundle.
- Typed fields: strings, numbers, booleans, dates, backed enums, Uids, lists and maps, and types of your own
- Get, query, scan and count, with one
Filterbuilder for key conditions, filters and write conditions - Puts, partial and nested updates, atomic counters and appends, and deletes, one at a time, in batches or in transactions, chunked and retried for you
- Opaque, URL-safe pagination tokens that page forward and backward
- A definition dump, schema baselines for CI and a profiler panel
Getting started
The quick setup covers the requirements, installation, a first entity and how to read and write it.
Documentation
- Quick setup: requirements, installation, a first entity and its use
- Basics: entities, reading by key, queries, scans, counts, filters, puts and deletes
- Updates, conditions and transactions: partial and nested updates, update expressions, conditional writes and transactions
- Paginated listing: previous and next links, page numbers, and pages merged from several queries
- Custom types, normalizers, filters and update actions
- Testing: doubles of the client, and tests of filters, update actions and normalizers of your own
- Exceptions: which exceptions to catch, and what each one means
- Limitations: what the entity model rules out, such as subclasses of an entity, and values that PHP and DynamoDB don't share, such as a float's precision and range
- Architecture decisions
Development tooling
In the dev environment, the bundle adds three console commands:
| Command | Output |
|---|---|
dal:definition [entity] |
The compiled definition of an entity: its table, keys and indexes, and every field's type, nullability, default and serializer |
dal:baseline:required-fields |
JSON listing each entity's required fields. Commit it and diff it in CI to catch a field becoming required while stored rows may lack it |
dal:baseline:table-schema |
JSON with the key and index schema of the live tables, for the same kind of check |
With symfony/web-profiler-bundle installed, the profiler gets a DynamoDB panel. It lists each call a request made
into the DAL, with its caller, the time spent in it and the DynamoDB requests it sent. The time is the wall time
inside the DAL, AsyncAws and the network included. The panel reads the requests from Symfony's traced HTTP client,
so AsyncAws has to send them through a client named aws.base-client (default):
Setting async_aws.http_client turns off the retrying HTTP client that AsyncAws builds by default. To keep
retries, wrap aws.base-client with AsyncAws\Core\HttpClient\AwsHttpClientFactory::createRetryableClient().
Contributing
Read the guidelines before opening a pull request.
All versions of dynamodb-dal-bundle with dependencies
async-aws/dynamo-db Version ^3.11
symfony/config Version ^7.3 || ^8.0
symfony/console Version ^7.3 || ^8.0
symfony/dependency-injection Version ^7.3 || ^8.0
symfony/http-foundation Version ^7.3 || ^8.0
symfony/http-kernel Version ^7.3 || ^8.0
symfony/service-contracts Version ^3.5