OPA SDKs

You can quickly connect an application to Enterprise OPA or Open Policy Agent (OPA) using the following SDKs.

These are developed and supported by Styra:

Language	Repo	Docs	Package
Java	StyraInc/opa-java	styrainc.github.io/opa-java
TypeScript	StyraInc/opa-typescript	styrainc.github.io/opa-typescript	@styra/opa
C#	StyraInc/opa-csharp	styrainc.github.io/opa-csharp	Styra

Getting Started

TypeScript

npm:

npm add @styra/opa

Yarn:

yarn add @styra/opa

Java

Gradle:

implementation 'com.styra.opa:api:0.4.2'

Maven:

<dependency>
    <groupId>com.styra.opa</groupId>
    <artifactId>api</artifactId>
    <version>0.4.2</version>
</dependency>

C#

Nuget:

dotnet add package Styra

Code Examples

TypeScript

import { OPAClient } from "@styra/opa";

const serverURL = "http://opa-host:8181";
const opa = new OPAClient(serverURL);

const path = "authz/allow";
const input = {
  subject: "alice",
  action: "read",
  resource: "/finance/reports/fy2038_budget.csv"
};
const result = await opa.evaluate(path, input);
console.log(result ? "allowed" : "denied");

Java

String opaURL = "http://opa-host:8181";
OPA opa = new OPA(opaURL);

java.util.Map<String,Object> input = java.util.Map.ofEntries(
    entry("subject", "alice"),
    entry("action", "read"),
    entry("resource", "/finance/reports/fy2038_budget.csv")
);

allowed = opa.check(input, "authz/allow");
System.out.println("allowed: " + allowed);

C#

// TODO

Support

Got suggestions or need help? We're here! Please reach out to us on the Styra Community Slack.

Further Reading

• Enterprise OPA Introduction
• Enterprise OPA Installation
• Open Policy Agent (OPA)