FCS API - Token Generator

Generate secure tokens for frontend JavaScript authentication in 10 programming languages.

Available Languages

Language	File
PHP	token-generator.php
Python	token-generator.py
JavaScript	token-generator.js
Java	TokenGenerator.java
Ruby	token_generator.rb
C#	TokenGenerator.cs
Go	token_generator.go
Rust	token_generator.rs
Swift	TokenGenerator.swift
Kotlin	TokenGenerator.kt

Installation

Clone Full Repository

git clone https://github.com/fcsapi/token-generator

Download Single File

# PHP only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/token-generator.php

# Python only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/token-generator.py

# JavaScript only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/token-generator.js

# Java only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/TokenGenerator.java

# Ruby only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/token_generator.rb

# C# only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/TokenGenerator.cs

# Go only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/token_generator.go

# Rust only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/token_generator.rs

# Swift only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/TokenGenerator.swift

# Kotlin only
curl -O https://raw.githubusercontent.com/fcsapi/token-generator/main/TokenGenerator.kt

Or Download from GitHub

Go to GitHub, click on the file you need, then click "Download raw file".

Usage

PHP

$generator = new FcsTokenGenerator('your_access_key', 'your_public_key');
$tokenData = $generator->generateToken();
// Returns: ['_token' => '...', '_expiry' => 1234567890, '_public_key' => '...']

Python

generator = FcsTokenGenerator('your_access_key', 'your_public_key')
token_data = generator.generate_token()
# Returns: {'_token': '...', '_expiry': 1234567890, '_public_key': '...'}

JavaScript (Node.js)

const generator = new FcsTokenGenerator('your_access_key', 'your_public_key');
const tokenData = generator.generateToken();
// Returns: { _token: '...', _expiry: 1234567890, _public_key: '...' }

Java

TokenGenerator generator = new TokenGenerator("your_access_key", "your_public_key");
Map<String, Object> tokenData = generator.generateToken();

Ruby

generator = FcsTokenGenerator.new('your_access_key', 'your_public_key')
token_data = generator.generate_token

C#

var generator = new TokenGenerator("your_access_key", "your_public_key");
var tokenData = generator.GenerateToken();

Go

generator := NewTokenGenerator("your_access_key", "your_public_key", 3600)
tokenData := generator.GenerateToken()

Rust

let generator = TokenGenerator::new("your_access_key", "your_public_key", None);
let token_data = generator.generate_token();

Swift

let generator = FcsTokenGenerator(accessKey: "your_access_key", publicKey: "your_public_key")
let tokenData = generator.generateToken()

Kotlin

val generator = FcsTokenGenerator("your_access_key", "your_public_key")
val tokenData = generator.generateToken()

Token Expiry Options

Seconds	Duration
300	5 minutes
900	15 minutes
1800	30 minutes
3600	1 hour (default)
86400	24 hours

How It Works

1. Backend generates a secure token using HMAC-SHA256
2. Backend sends token data to frontend (via API or meta tags)
3. Frontend uses token for FCS API calls (no API key exposed)

┌─────────────────┐         ┌─────────────────┐         ┌─────────────────┐
│     Backend     │         │    Frontend     │         │    FCS API      │
│  (Your Server)  │         │   (Browser)     │         │                 │
└────────┬────────┘         └────────┬────────┘         └────────┬────────┘
         │                           │                           │
         │  1. Generate Token        │                           │
         │  (using access_key)       │                           │
         │                           │                           │
         │  2. Send token data       │                           │
         │ ─────────────────────────>│                           │
         │                           │                           │
         │                           │  3. API Request           │
         │                           │  (with token)             │
         │                           │ ─────────────────────────>│
         │                           │                           │
         │                           │  4. Response              │
         │                           │ <─────────────────────────│
         │                           │                           │

Get API Keys

1. Visit FCS API
2. Sign up for a free account
3. Get your Access Key and Public Key from the dashboard

Documentation

• Forex API Documentation
• Crypto API Documentation
• Stock API Documentation

Support

• Email: support@fcsapi.com
• Website: fcsapi.com

License

MIT License - see LICENSE file for details.