Client Libraries

The SmarterServices IAM system provides client libraries for various platforms and programming languages to simplify integration with your applications.

Available Clients

Browser Client (JavaScript/TypeScript)

The browser client is designed for client-side applications and provides seamless integration with modern web frameworks.

Repository

GitHub: iam-client
NPM: @smarterservices/iam-client

Features

✅ Framework Agnostic: Works with any JavaScript framework
✅ TypeScript Support: Full TypeScript definitions included
✅ Caching: Built-in permission caching for performance
✅ React Integration: Dedicated React components and hooks
✅ Vue Integration: Vue.js directives and composables
✅ Angular Integration: Angular services and guards

Installation

npm install @smarterservices/iam-client

Basic Usage

import { IamClient } from '@smarterservices/iam-client';

const iam = new IamClient({
  apiUrl: 'https://iam.smarterservices.com',
  token: 'your-auth-token'
});

// Check single permission
const canDelete = await iam.authorize(
  'sp:DeleteSession',
  'ssrn:ss:sp::578:session/ES123456'
);

// Check multiple permissions
const permissions = await iam.authorizeMultiple([
  { action: 'sp:ReadSession', resource: 'ssrn:ss:sp::578:session/ES123456' },
  { action: 'sp:UpdateSession', resource: 'ssrn:ss:sp::578:session/ES123456' }
]);

Configuration Options

const iam = new IamClient({
  apiUrl: 'https://iam.smarterservices.com',
  token: 'your-auth-token',
  
  // Caching configuration
  cache: {
    enabled: true,
    ttl: 300, // 5 minutes
    maxSize: 1000
  },
  
  // Request configuration
  timeout: 5000,
  retries: 3,
  
  // Debug mode
  debug: process.env.NODE_ENV === 'development'
});

Server Client (Node.js)

The server client is optimized for server-side applications and provides additional features for service-to-service authentication.

Repository

GitHub: iam
NPM: @smarterservices/iam-node

Features

✅ Service Authentication: Service-to-service authentication
✅ Middleware Support: Express.js, Koa, and other framework middleware
✅ Bulk Operations: Batch permission checks
✅ Policy Management: Create and manage policies programmatically
✅ Audit Logging: Built-in audit trail functionality
✅ High Performance: Optimized for server workloads

Installation

npm install @smarterservices/iam-node

Basic Usage

const { IamService } = require('@smarterservices/iam-node');

const iam = new IamService({
  apiUrl: 'https://iam.smarterservices.com',
  serviceKey: 'your-service-key'
});

// Authorize user action
const authorized = await iam.authorize(
  'user-token',
  'sp:ReadSession',
  'ssrn:ss:sp::578:session/ES123456'
);

// Service-to-service authorization
const serviceAuthorized = await iam.authorizeService(
  'sm:CreateUser',
  'ssrn:ss:sm::578:user/new'
);

Framework Integrations

React Integration

Installation

npm install @smarterservices/iam-react

Provider Setup

import { IamProvider } from '@smarterservices/iam-react';

function App() {
  return (
    <IamProvider
      apiUrl="https://iam.smarterservices.com"
      token={authToken}
    >
      <YourApp />
    </IamProvider>
  );
}

Component Protection

import { IamProtected } from '@smarterservices/iam-react';

function DeleteButton({ sessionId }) {
  return (
    <IamProtected 
      action="sp:DeleteSession" 
      resource={`ssrn:ss:sp::578:session/${sessionId}`}
      fallback={<div>Access denied</div>}
    >
      <button onClick={handleDelete}>
        Delete Session
      </button>
    </IamProtected>
  );
}

Hooks

import { usePermission, useIam } from '@smarterservices/iam-react';

function SessionActions({ sessionId }) {
  const { hasPermission, loading } = usePermission(
    'sp:DeleteSession',
    `ssrn:ss:sp::578:session/${sessionId}`
  );
  
  const iam = useIam();

  const handleBulkCheck = async () => {
    const permissions = await iam.authorizeMultiple([
      { action: 'sp:ReadSession', resource: `ssrn:ss:sp::578:session/${sessionId}` },
      { action: 'sp:UpdateSession', resource: `ssrn:ss:sp::578:session/${sessionId}` }
    ]);
  };

  if (loading) return <div>Loading...</div>;

  return (
    <div>
      {hasPermission && (
        <button onClick={handleDelete}>Delete</button>
      )}
    </div>
  );
}

Vue.js Integration

Installation

npm install @smarterservices/iam-vue

Plugin Setup

import { createApp } from 'vue';
import { IamPlugin } from '@smarterservices/iam-vue';

const app = createApp(App);

app.use(IamPlugin, {
  apiUrl: 'https://iam.smarterservices.com',
  token: () => store.getters.authToken
});

Directive Usage

<template>
  <div>
    <button 
      v-iam="{ action: 'sp:DeleteSession', resource: sessionResource }"
      @click="deleteSession"
    >
      Delete Session
    </button>
  </div>
</template>

<script>
export default {
  computed: {
    sessionResource() {
      return `ssrn:ss:sp::578:session/${this.sessionId}`;
    }
  }
};
</script>

Composition API

<script setup>
import { usePermission } from '@smarterservices/iam-vue';

const props = defineProps(['sessionId']);

const { hasPermission, loading } = usePermission(
  'sp:DeleteSession',
  `ssrn:ss:sp::578:session/${props.sessionId}`
);
</script>

<template>
  <div>
    <div v-if="loading">Loading...</div>
    <button v-else-if="hasPermission" @click="deleteSession">
      Delete Session
    </button>
  </div>
</template>

Angular Integration

Installation

npm install @smarterservices/iam-angular

Module Setup

import { NgModule } from '@angular/core';
import { IamModule } from '@smarterservices/iam-angular';

@NgModule({
  imports: [
    IamModule.forRoot({
      apiUrl: 'https://iam.smarterservices.com',
      tokenProvider: () => this.authService.getToken()
    })
  ]
})
export class AppModule { }

Service Usage

import { Injectable } from '@angular/core';
import { IamService } from '@smarterservices/iam-angular';

@Injectable()
export class SessionService {
  constructor(private iam: IamService) {}

  async deleteSession(sessionId: string) {
    const canDelete = await this.iam.authorize(
      'sp:DeleteSession',
      `ssrn:ss:sp::578:session/${sessionId}`
    );

    if (canDelete) {
      // Proceed with deletion
    } else {
      throw new Error('Access denied');
    }
  }
}

Guard Usage

import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot } from '@angular/router';
import { IamGuard } from '@smarterservices/iam-angular';

@Injectable()
export class SessionGuard extends IamGuard implements CanActivate {
  protected getPermission(route: ActivatedRouteSnapshot) {
    return {
      action: 'sp:ReadSession',
      resource: `ssrn:ss:sp::578:session/${route.params.id}`
    };
  }
}

Directive Usage

<div *iamAllow="'sp:DeleteSession'; resource: sessionResource">
  <button (click)="deleteSession()">Delete Session</button>
</div>

<div *iamDeny="'sp:DeleteSession'; resource: sessionResource">
  <p>You don't have permission to delete this session.</p>
</div>

Server-Side Integrations

Express.js Middleware

const { createIamMiddleware } = require('@smarterservices/iam-express');

const iamMiddleware = createIamMiddleware({
  apiUrl: 'https://iam.smarterservices.com',
  serviceKey: 'your-service-key'
});

// Apply to specific routes
app.get('/api/sessions/:id',
  iamMiddleware.require('sp:ReadSession', 'ssrn:ss:sp::{accountId}:session/{id}'),
  getSession
);

// Apply to route groups
app.use('/api/admin',
  iamMiddleware.requireAny(['platform:AdminAccess', 'platform:SuperUser']),
  adminRoutes
);

Koa.js Middleware

const { createIamKoaMiddleware } = require('@smarterservices/iam-koa');

const iam = createIamKoaMiddleware({
  apiUrl: 'https://iam.smarterservices.com',
  serviceKey: 'your-service-key'
});

router.get('/sessions/:id',
  iam.require('sp:ReadSession', 'ssrn:ss:sp::{accountId}:session/{id}'),
  getSession
);

FastAPI (Python)

from fastapi import FastAPI, Depends
from smarterservices_iam.fastapi import IamDependency

app = FastAPI()

iam = IamDependency(
    api_url="https://iam.smarterservices.com",
    service_key="your-service-key"
)

@app.get("/sessions/{session_id}")
async def get_session(
    session_id: str,
    authorized: bool = Depends(
        iam.require("sp:ReadSession", "ssrn:ss:sp::{account_id}:session/{session_id}")
    )
):
    return get_session_data(session_id)

Django (Python)

from django.contrib.auth.decorators import login_required
from smarterservices_iam.django import require_permission

@login_required
@require_permission('sp:ReadSession', 'ssrn:ss:sp::{account_id}:session/{session_id}')
def get_session(request, session_id):
    return JsonResponse(get_session_data(session_id))

# Class-based views
from smarterservices_iam.django import IamPermissionMixin

class SessionDetailView(IamPermissionMixin, DetailView):
    model = Session
    iam_action = 'sp:ReadSession'
    iam_resource_template = 'ssrn:ss:sp::{account_id}:session/{pk}'

Spring Boot (Java)

@RestController
@RequestMapping("/api/sessions")
public class SessionController {
    
    @Autowired
    private IamService iamService;
    
    @GetMapping("/{id}")
    @RequirePermission(action = "sp:ReadSession", resource = "ssrn:ss:sp::{accountId}:session/{id}")
    public ResponseEntity<Session> getSession(@PathVariable String id) {
        return ResponseEntity.ok(sessionService.getSession(id));
    }
}

Mobile Clients

iOS (Swift)

Installation

// Package.swift
dependencies: [
    .package(url: "https://github.com/SmarterServices/iam-ios", from: "1.0.0")
]

Usage

import SmarterServicesIAM

let iam = IamClient(
    apiUrl: "https://iam.smarterservices.com",
    token: authToken
)

// Check permission
let authorized = try await iam.authorize(
    action: "sp:ReadSession",
    resource: "ssrn:ss:sp::578:session/ES123456"
)

if authorized {
    // User has permission
    showSessionDetails()
} else {
    // Show access denied
    showAccessDenied()
}

Android (Kotlin)

Installation

// build.gradle
implementation 'com.smarterservices:iam-android:1.0.0'

Usage

import com.smarterservices.iam.IamClient

val iam = IamClient(
    apiUrl = "https://iam.smarterservices.com",
    token = authToken
)

// Check permission
lifecycleScope.launch {
    val authorized = iam.authorize(
        action = "sp:ReadSession",
        resource = "ssrn:ss:sp::578:session/ES123456"
    )
    
    if (authorized) {
        // User has permission
        showSessionDetails()
    } else {
        // Show access denied
        showAccessDenied()
    }
}

Configuration

Environment-Based Configuration

// config/iam.js
module.exports = {
  development: {
    apiUrl: 'https://iam-dev.smarterservices.com',
    serviceKey: process.env.IAM_DEV_SERVICE_KEY,
    cache: { enabled: false },
    debug: true
  },
  staging: {
    apiUrl: 'https://iam-staging.smarterservices.com',
    serviceKey: process.env.IAM_STAGING_SERVICE_KEY,
    cache: { enabled: true, ttl: 60 },
    debug: false
  },
  production: {
    apiUrl: 'https://iam.smarterservices.com',
    serviceKey: process.env.IAM_PRODUCTION_SERVICE_KEY,
    cache: { enabled: true, ttl: 300 },
    debug: false
  }
};

Dynamic Configuration

const iam = new IamClient({
  apiUrl: 'https://iam.smarterservices.com',
  tokenProvider: async () => {
    // Refresh token if needed
    return await authService.getValidToken();
  },
  onUnauthorized: () => {
    // Handle token expiration
    authService.redirectToLogin();
  },
  onError: (error) => {
    // Handle IAM service errors
    errorService.log(error);
  }
});

Best Practices

1. Token Management

// Good: Use token provider for automatic refresh
const iam = new IamClient({
  tokenProvider: () => authService.getToken(),
  onTokenExpired: () => authService.refreshToken()
});

// Avoid: Hard-coded tokens
const iam = new IamClient({
  token: 'hard-coded-token' // Don't do this
});

2. Error Handling

try {
  const authorized = await iam.authorize(action, resource);
  if (authorized) {
    // Proceed
  } else {
    // Handle access denied gracefully
    showAccessDeniedMessage();
  }
} catch (error) {
  // Handle service errors
  if (error.code === 'NETWORK_ERROR') {
    showOfflineMessage();
  } else {
    showGenericError();
  }
}

3. Caching Strategy

const iam = new IamClient({
  cache: {
    enabled: true,
    ttl: 300, // 5 minutes for most permissions
    customTtl: {
      'sp:DeleteSession': 60, // 1 minute for sensitive actions
      'sm:ReadUser': 600      // 10 minutes for read-only actions
    }
  }
});

4. Batch Operations

// Good: Batch multiple permission checks
const permissions = await iam.authorizeMultiple([
  { action: 'sp:ReadSession', resource: 'ssrn:ss:sp::578:session/ES123' },
  { action: 'sp:UpdateSession', resource: 'ssrn:ss:sp::578:session/ES123' },
  { action: 'sp:DeleteSession', resource: 'ssrn:ss:sp::578:session/ES123' }
]);

// Avoid: Multiple individual calls
const canRead = await iam.authorize('sp:ReadSession', 'ssrn:ss:sp::578:session/ES123');
const canUpdate = await iam.authorize('sp:UpdateSession', 'ssrn:ss:sp::578:session/ES123');
const canDelete = await iam.authorize('sp:DeleteSession', 'ssrn:ss:sp::578:session/ES123');

Troubleshooting

Common Issues

Token Expiration: Implement automatic token refresh
Network Timeouts: Configure appropriate timeout values
Cache Inconsistency: Use appropriate cache TTL values
Resource Format Errors: Validate SSRN format
Permission Lag: Account for eventual consistency

Debug Mode

const iam = new IamClient({
  debug: true, // Enable debug logging
  onDebug: (message, data) => {
    console.log(`IAM Debug: ${message}`, data);
  }
});

Health Checks

// Check IAM service health
const isHealthy = await iam.healthCheck();
if (!isHealthy) {
  // Handle service unavailability
  enableOfflineMode();
}

​Client Libraries

​Available Clients

​Browser Client (JavaScript/TypeScript)

​Repository

​Features

​Installation

​Basic Usage

​Configuration Options

​Server Client (Node.js)

​Repository

​Features

​Installation

​Basic Usage

​Framework Integrations

​React Integration

​Installation

​Provider Setup

​Component Protection

​Hooks

​Vue.js Integration

​Installation

​Plugin Setup

​Directive Usage

​Composition API

​Angular Integration

​Installation

​Module Setup

​Service Usage

​Guard Usage

​Directive Usage

​Server-Side Integrations

​Express.js Middleware

​Koa.js Middleware

​FastAPI (Python)

​Django (Python)

​Spring Boot (Java)

​Mobile Clients

​iOS (Swift)

​Installation

​Usage

​Android (Kotlin)

​Installation

​Usage

​Configuration

​Environment-Based Configuration

​Dynamic Configuration

​Best Practices

​1. Token Management

​2. Error Handling

​3. Caching Strategy

​4. Batch Operations

​Troubleshooting

​Common Issues

​Debug Mode

​Health Checks

Client Libraries

Available Clients

Browser Client (JavaScript/TypeScript)

Repository

Features

Installation

Basic Usage

Configuration Options

Server Client (Node.js)

Repository

Features

Installation

Basic Usage

Framework Integrations

React Integration

Installation

Provider Setup

Component Protection

Hooks

Vue.js Integration

Installation

Plugin Setup

Directive Usage

Composition API

Angular Integration

Installation

Module Setup

Service Usage

Guard Usage

Directive Usage

Server-Side Integrations

Express.js Middleware

Koa.js Middleware

FastAPI (Python)

Django (Python)

Spring Boot (Java)

Mobile Clients

iOS (Swift)

Installation

Usage

Android (Kotlin)

Installation

Usage

Configuration

Environment-Based Configuration

Dynamic Configuration

Best Practices

1. Token Management

2. Error Handling

3. Caching Strategy

4. Batch Operations

Troubleshooting

Common Issues

Debug Mode

Health Checks