xp-forge / aws
AWS Core for the XP Framework
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Requires
- php: >=7.0.0
- xp-forge/json: ^5.0 | ^4.0
- xp-forge/marshalling: ^2.0 | ^1.0
- xp-framework/core: ^12.0 | ^11.0 | ^10.14
- xp-framework/http: ^10.0 | ^9.0
Requires (Dev)
- xp-framework/test: ^2.0 | ^1.0
README
Provides common AWS functionality in a low-level and therefore lightweight library (less than 3% of the size of the official PHP SDK!)
Invoking a lambda
use com\amazon\aws\{Credentials, ServiceEndpoint}; use util\Secret; use util\cmd\Console; use util\log\Logging; $credentials= new Credentials($accessKey, new Secret($secretKey)); $api= (new ServiceEndpoint('lambda', $credentials))->in('eu-central-1')->version('2015-03-31'); $api->setTrace(Logging::all()->toConsole()); $r= $api->resource('/functions/greet/invocations')->transmit(['name' => getenv('USER')]); Console::writeLine($r); Console::writeLine($r->value());
Credential providers
AWS credentials are stored in various places, depending on the runtime environment. The CredentialProvider class supports the following:
- Environment variables: Uses
AWS_ACCESS_KEY_ID
,AWS_SECRET_ACCESS_KEY
and (if present)AWS_SESSION_TOKEN
- Shared credentials and config files: Reads credentials from
~/.aws/config
and (if present)~/.aws/credentials
(honoring alternative locations set via environment variables) - SSO: Uses configured SSO and the cached credentials created by AWS CLI's login command, including SSO session support
- Amazon ECS container credentials: Uses the container API to fetch (and refresh, if necessary) the credentials
See https://docs.aws.amazon.com/sdkref/latest/guide/standardized-credentials.html
Sharing a S3 resource
The following creates a pre-signed link which is valid for 3 minutes:
use com\amazon\aws\{ServiceEndpoint, CredentialProvider}; use util\cmd\Console; $s3= (new ServiceEndpoint('s3', CredentialProvider::default())) ->in('eu-central-1') ->using('my-bucket') ; $link= $s3->sign('/path/to/resource.png', timeout: 180); Console::writeLine($link);
Streaming uploads to S3
S3 doesn't double-encode its paths when signing them (see aws/aws-sdk-php#633), pass S3Key
instances to support arbitrary filenames:
use com\amazon\aws\api\SignatureV4; use com\amazon\aws\{ServiceEndpoint, CredentialProvider, S3Key}; use io\File; use util\cmd\Console; $s3= (new ServiceEndpoint('s3', CredentialProvider::default())) ->in('eu-central-1') ->using('my-bucket') ; $file= new File($argv[1]); $file->open(File::READ); try { $transfer= $s3->resource(new S3Key('target', $file->filename))->open('PUT', [ 'x-amz-content-sha256' => SignatureV4::UNSIGNED, // Or calculate from file 'Content-Type' => 'text/plain', 'Content-Length' => $file->size(), ]); while (!$file->eof()) { $transfer->write($file->read()); } $response= $transfer->finish(); Console::writeLine($response); } finally { $file->close(); }
Streaming responses from Bedrock AI models
See https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_ConverseStream.html:
use com\amazon\aws\{ServiceEndpoint, CredentialProvider}; use util\cmd\Console; $model= 'anthropic.claude-3-5-sonnet-20240620-v1:0'; $runtime= (new ServiceEndpoint('bedrock', CredentialProvider::default())) ->using('bedrock-runtime.') ->in('eu-central-1') ; $response= $runtime->resource('/model/{0}/converse-stream', [$model])->transmit([ 'system' => [['text' => 'Use informal language']], 'messages' => [ ['role' => 'user', 'content' => [['text' => $argv[1]]]], ], 'inferenceConfig' => [ 'maxTokens' => 1000, 'temperature' => 0.5, ], ]); foreach ($response->events() as $event) { Console::writeLine($event->header(':event-type'), ': ', $event->value()); }