# OAuth 2.0 Samples

OAuth 2.0 implementation examples including authorization flows, client configurations, and security best practices

> Canonical page: https://elysiatools.com/en/samples/oauth2-samples

- **Category:** Authentication & Authorization

- **Keywords:** oauth2, authentication, authorization, security, oauth, tokens

## Overview

OAuth 2.0 implementation examples including authorization flows, client configurations, and security best practices

## Examples

- **OAuth 2.0 Authorization Code Flow**: Complete implementation of OAuth 2.0 Authorization Code Flow with PKCE
- **OAuth 2.0 Client Credentials Flow**: Machine-to-machine authentication using Client Credentials Grant
- **OAuth 2.0 Resource Server**: Implementation of a protected API resource server that validates OAuth 2.0 tokens

## When to use

- Use this sample set when you want reference inputs for OAuth 2.0 Samples.
- Use it to preview output formats and compare related sample variants.

## How it works

- Open a sample entry to inspect the prepared example payload or asset.
- Compare it with related tools to understand how the workflow connects.

## Use cases

- OAuth 2.0 Authorization Code Flow
- OAuth 2.0 Client Credentials Flow
- OAuth 2.0 Resource Server

## Frequently asked questions

### What is included in OAuth 2.0 Samples?

This page includes curated sample entries, related tools, and neighboring sample collections for OAuth 2.0 Samples.

## Related tools

- [JWT Decoder & Security Auditor](https://elysiatools.com/en/tools/jwt-decoder-security-auditor): Decode JWT header and payload, verify HS256 or RS256 signatures, and flag algorithm, expiry, and sensitive-claim security risks
- [Nonce & Token Generator](https://elysiatools.com/en/tools/nonce-generator): Generate cryptographically secure one-time tokens for web security scenarios — CSRF tokens, OAuth/OIDC state parameters, session nonces, and PKCE code_verifier/code_challenge (S256). Uses crypto.randomBytes, never Math.random.
- [JWT Decoder](https://elysiatools.com/en/tools/jwt-decoder): Decode JWT tokens
- [JWT Generator](https://elysiatools.com/en/tools/jwt-generator): Generate JWT tokens with custom claims and algorithms

## Related content

- [JWT Samples](https://elysiatools.com/en/samples/jwt-samples): Comprehensive JWT examples from basic token structure to advanced security implementations
- [OAuth 2.0 & OpenID Connect Samples](https://elysiatools.com/en/samples/oauth-openid-connect): OAuth 2.0 authorization framework and OpenID Connect authentication protocol examples
- [Zero Trust Architecture Samples](https://elysiatools.com/en/samples/zero-trust-samples): Comprehensive Zero Trust architecture samples covering identity authentication, network segmentation, micro-segmentation strategies, and secure access control
- [Casbin Access Control Library](https://elysiatools.com/en/samples/casbin): Powerful and efficient open-source access control library
- [Passport.js Authentication Middleware](https://elysiatools.com/en/samples/passportjs): Node.js authentication middleware with Passport.js and various strategies
- [SAML Samples](https://elysiatools.com/en/samples/saml-samples): SAML (Security Assertion Markup Language) implementation examples including SSO, metadata, and identity provider configurations