Crate olai_http 

Unified cloud credential abstraction and HTTP client for AWS, Azure, GCP, and Databricks.

This crate provides a single authenticated HTTP client, CloudClient, that signs outgoing requests for any supported cloud provider. Rather than pulling in a separate vendor SDK for each cloud, a service constructs one CloudClient per provider and issues requests through a familiar, reqwest-style builder (CloudRequestBuilder). Every provider is reached through the same RequestSigner trait, so credential resolution, token refresh, and request signing are uniform across clouds. The credential machinery is extracted from the object_store crate’s internal client.

Providers

Each provider has a builder under its own module and a matching CloudClient constructor:

• AWS (aws) — SigV4 signing with static keys, IMDS, ECS/EKS task roles, web identity, and STS AssumeRole. See CloudClient::new_aws.
• Azure (azure) — Azure AD bearer tokens via client secret, managed identity, workload identity, or the Azure CLI. See CloudClient::new_azure.
• Google Cloud (gcp) — OAuth 2.0 bearer tokens via service-account JWTs, the GCE metadata server, or workload identity federation. See CloudClient::new_google.
• Databricks (databricks) — OAuth M2M and OIDC token exchange. See CloudClient::new_databricks.

For a static token or no authentication at all, use CloudClient::new_with_token or CloudClient::new_unauthenticated.

Examples

use olai_http::CloudClient;

let client = CloudClient::new_with_token("my-token");
let resp = client
    .get("https://api.example.com/data")
    .send()
    .await?;
println!("status: {}", resp.status());

Enable the recording feature to capture HTTP interactions to JSON (with sensitive headers redacted) for test replay.

Re-exports

pub use service::ReqwestService;

pub use service::SpawnService;

Modules

aws

azure

databricks

Databricks Unified Auth implementation.

gcp

service

Structs

Certificate

Represents a CA certificate provided by the user.

ClientOptions

HTTP client configuration for remote object stores

CloudClient

An authenticated HTTP client for cloud provider APIs.

CloudRequestBuilder

A builder for a single request issued through a CloudClient.

RetryConfig

The configuration for how to respond to request errors.

SignerChain

Tries signers in order; uses the first that succeeds without error.

StaticCredentialProvider

A static set of credentials

TemporaryToken

A temporary authentication token with an associated expiry

TokenCache

Thread-safe cache for a TemporaryToken that proactively refreshes before the token expires.

Enums

ClientConfigKey

Configuration keys for ClientOptions

Error

Traits

CredentialProvider

Provides credentials for use when signing requests.

RequestSigner

Applies authentication to a built reqwest request.

Type Aliases

Result