Crate aws_parameters_and_secrets_lambda

Cache AWS Secrets Manager secrets in your AWS Lambda function, reducing latency (we don’t need to query another service) and cost (Secrets Manager charges based on queries).

Quickstart

Add the AWS Parameters and Secrets Lambda Extension layer to your Lambda function. Only version 2 of this layer is currently supported.

Assuming a secret exists with the name “backend-server” containing a key/value pair with a key of “api_key” and a value of “dd96eeda-16d3-4c86-975f-4986e603ec8c” (our super secret API key to our backend), this code will get the secret from the cache, querying Secrets Manager if it is not in the cache, and present it in a strongly-typed BackendServer object.

use aws_parameters_and_secrets_lambda::Manager;
use serde::Deserialize;

#[derive(Deserialize)]
struct BackendServer {
    api_key: String
}

let manager = Manager::default();
let secret = manager.get_secret("backend-server");
let secret_value: BackendServer = secret.get_typed().await?;
assert_eq!("dd96eeda-16d3-4c86-975f-4986e603ec8c", secret_value.api_key);

Structs

ExtensionResponseParam

The response from the AWS Lambda extension when successfully queried for a paramater at endpoint /systemsmanager/parameters/get/?name=....

ExtensionResponseParameterField

A parameter returned by the AWS Lambda extension, as structured JSON

Manager

Manages connections to the cache. Create one via a ManagerBuilder.

ManagerBuilder

Flexible builder for a Manager.

Parameter

A representation of a parameter in Parameter Store in SSM.

QueryBuilder

Flexible builder for a complex Query.

Secret

A representation of a secret in Secrets Manager.

VersionIdQuery

A query for a secret with a version id. Create one via QueryBuilder::with_version_id.

VersionStageQuery

A query for a secret with a version stage. Create one via QueryBuilder::with_version_stage.

Traits

Query

A query for a specific Secret in AWS Secrets Manager. See Manager::get_secret for usage.