Crate laravel_iam 

laravel-iam

A thin, fail-closed Rust client for the Laravel IAM authorization server. It speaks the canonical decision protocol (POST {base_url}/decisions/check) and verifies OIDC tokens against the server’s JWKS — mirroring the production PHP client’s wire contract exactly, in idiomatic async Rust.

There is no policy logic on the client: every decision is the server’s. The client only transports the question and the answer, and refuses to invent an “allow”.

Fail-closed guarantee

A network error, timeout, 5xx, 4xx, malformed body or unverifiable token always becomes a deny — never an allow. Operations return Result<_, IamError>; the ResultExt::is_allowed helper collapses any error into false so a gate cannot accidentally open:

use laravel_iam::{IamClient, DecisionQuery, Subject, ResultExt};
use serde_json::json;

let iam = IamClient::builder()
    .base_url("https://iam.example.com/api/iam/v1")
    .token(std::env::var("IAM_SERVICE_TOKEN")?)
    .build()?;

let decision = iam.check(DecisionQuery {
    subject: Subject::user("usr_123"),
    application: Some("warehouse".into()),
    permission: "stock.adjust".into(),
    resource: Some("wh_milan".into()),
    context: json!({ "amount": 300 }),
    ..Default::default()
}).await;

// `decision` is `Result<Decision, IamError>`; on ANY error this is `false`.
if !decision.is_allowed() {
    // deny — fail-closed
}

Token verification

IamClient::verify_token checks an ES256 signature against the cached JWKS plus the iss/aud/exp claims. Configure the expected issuer and audience on the builder.

Features

• blocking — adds a synchronous blocking::IamClient with identical semantics.

Modules

blocking

Synchronous IAM client (enabled by the blocking feature).

Structs

Claims

Verified claims extracted from an OIDC access/ID token.

Decision

A normalized policy decision.

DecisionQuery

A policy-decision query.

IamClient

A thin, fail-closed async client for the Laravel IAM control plane.

IamClientBuilder

Builder for an IAM client.

Resource

A typed resource reference, e.g. an entry returned by IamClient::list_resources.

Subject

The principal a decision is about: { "type": "...", "id": "..." }.

Enums

IamError

Errors returned by crate::IamClient operations.

Traits

ResultExt

Fail-closed extension for Result<Decision, IamError>.