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| 1 | +# FCS API - JavaScript Functions Reference |
| 2 | + |
| 3 | +Quick reference for all available functions in the FCS API JavaScript library. |
| 4 | + |
| 5 | +--- |
| 6 | + |
| 7 | +## Authentication Methods |
| 8 | + |
| 9 | +### Method 1: Access Key (Default) |
| 10 | + |
| 11 | +```javascript |
| 12 | +// Set in FcsConfig.js |
| 13 | +authMethod = 'access_key'; |
| 14 | +accessKey = 'YOUR_ACCESS_KEY_HERE'; |
| 15 | + |
| 16 | +// Or pass directly |
| 17 | +const config = FcsConfig.withAccessKey('YOUR_ACCESS_KEY'); |
| 18 | +const fcsapi = new FcsApi(config); |
| 19 | + |
| 20 | +// Or set after initialization |
| 21 | +const fcsapi = new FcsApi(); |
| 22 | +fcsapi.setAccessKey('YOUR_ACCESS_KEY'); |
| 23 | +``` |
| 24 | + |
| 25 | +### Method 2: IP Whitelist |
| 26 | + |
| 27 | +```javascript |
| 28 | +// Set in FcsConfig.js |
| 29 | +authMethod = 'ip_whitelist'; |
| 30 | + |
| 31 | +// Or use static method |
| 32 | +const config = FcsConfig.withIpWhitelist(); |
| 33 | +const fcsapi = new FcsApi(config); |
| 34 | + |
| 35 | +// Or set after initialization |
| 36 | +const fcsapi = new FcsApi(); |
| 37 | +fcsapi.useIpWhitelist(); |
| 38 | +``` |
| 39 | + |
| 40 | +### Method 3: Token-Based |
| 41 | + |
| 42 | +```javascript |
| 43 | +// Set in FcsConfig.js |
| 44 | +authMethod = 'token'; |
| 45 | +publicKey = 'YOUR_PUBLIC_KEY'; |
| 46 | +token = 'TOKEN_FROM_BACKEND'; |
| 47 | +tokenExpiry = 1735123456; |
| 48 | + |
| 49 | +// Or use static method |
| 50 | +const config = FcsConfig.withToken('PUBLIC_KEY', 'TOKEN', 1735123456); |
| 51 | +const fcsapi = new FcsApi(config); |
| 52 | + |
| 53 | +// Or set after initialization |
| 54 | +const fcsapi = new FcsApi(); |
| 55 | +fcsapi.setToken({ |
| 56 | + token: 'TOKEN_FROM_BACKEND', |
| 57 | + expiry: 1735123456, |
| 58 | + publicKey: 'YOUR_PUBLIC_KEY' |
| 59 | +}); |
| 60 | +``` |
| 61 | + |
| 62 | +### Token Expiry Values |
| 63 | +| Seconds | Duration | |
| 64 | +|---------|----------| |
| 65 | +| 300 | 5 minutes | |
| 66 | +| 900 | 15 minutes | |
| 67 | +| 1800 | 30 minutes | |
| 68 | +| 3600 | 1 hour | |
| 69 | +| 86400 | 24 hours | |
| 70 | + |
| 71 | +### Check Token Validity |
| 72 | +```javascript |
| 73 | +if (!fcsapi.isTokenValid()) { |
| 74 | + // Refresh token from your backend |
| 75 | +} |
| 76 | +``` |
| 77 | + |
| 78 | +--- |
| 79 | + |
| 80 | +## Crypto Functions |
| 81 | + |
| 82 | +```javascript |
| 83 | +await fcsapi.crypto.getSymbolsList(type, subType, exchange) |
| 84 | +await fcsapi.crypto.getCoinsList() |
| 85 | +await fcsapi.crypto.getLatestPrice(symbol, period, type, exchange, getProfile) |
| 86 | +await fcsapi.crypto.getAllPrices(exchange, period, type) |
| 87 | +await fcsapi.crypto.getCoinData(symbol, limit, sortBy) |
| 88 | +await fcsapi.crypto.getTopByMarketCap(limit) |
| 89 | +await fcsapi.crypto.getTopByRank(limit) |
| 90 | +await fcsapi.crypto.convert(pair1, pair2, amount) |
| 91 | +await fcsapi.crypto.getBasePrices(symbol, exchange, fallback) |
| 92 | +await fcsapi.crypto.getCrossRates(symbol, exchange, type, period, crossrates, fallback) |
| 93 | +await fcsapi.crypto.getHistory(symbol, period, length, from, to, page, isChart) |
| 94 | +await fcsapi.crypto.getProfile(symbol) |
| 95 | +await fcsapi.crypto.getExchanges(type, subType) |
| 96 | +await fcsapi.crypto.advanced(params) |
| 97 | +await fcsapi.crypto.getMovingAverages(symbol, period, exchange) |
| 98 | +await fcsapi.crypto.getIndicators(symbol, period, exchange) |
| 99 | +await fcsapi.crypto.getPivotPoints(symbol, period, exchange) |
| 100 | +await fcsapi.crypto.getPerformance(symbol, exchange) |
| 101 | +await fcsapi.crypto.getTopGainers(exchange, limit, period, type) |
| 102 | +await fcsapi.crypto.getTopLosers(exchange, limit, period, type) |
| 103 | +await fcsapi.crypto.getHighestVolume(exchange, limit, period, type) |
| 104 | +await fcsapi.crypto.getSortedData(sortColumn, sortDirection, limit, type, exchange, period) |
| 105 | +await fcsapi.crypto.search(query, type) |
| 106 | +await fcsapi.crypto.multiUrl(urls, base) |
| 107 | +``` |
| 108 | + |
| 109 | +### Parameters |
| 110 | +| Parameter | Values | |
| 111 | +|-----------|--------| |
| 112 | +| `type` | crypto, coin, futures, dex, dominance | |
| 113 | +| `subType` | spot, swap, index | |
| 114 | +| `exchange` | BINANCE, COINBASE, KRAKEN, BYBIT | |
| 115 | +| `period` | 1m, 5m, 15m, 30m, 1h, 4h, 1D, 1W, 1M | |
| 116 | +| `sortBy` | perf.rank_asc, perf.market_cap_desc, perf.circulating_supply_desc | |
| 117 | +| `sortColumn` | active.c, active.chp, active.v, active.h, active.l, perf.rank, perf.market_cap | |
| 118 | +| `sortDirection` | asc, desc | |
| 119 | + |
| 120 | +--- |
| 121 | + |
| 122 | +## Forex Functions |
| 123 | + |
| 124 | +```javascript |
| 125 | +await fcsapi.forex.getSymbolsList(type, subType, exchange) |
| 126 | +await fcsapi.forex.getLatestPrice(symbol, period, type, exchange, getProfile) |
| 127 | +await fcsapi.forex.getAllPrices(exchange, period, type) |
| 128 | +await fcsapi.forex.getCommodities(symbol, period) |
| 129 | +await fcsapi.forex.getCommoditySymbols() |
| 130 | +await fcsapi.forex.convert(pair1, pair2, amount, type) |
| 131 | +await fcsapi.forex.getBasePrices(symbol, type, exchange, fallback) |
| 132 | +await fcsapi.forex.getCrossRates(symbol, type, period, exchange, crossrates, fallback) |
| 133 | +await fcsapi.forex.getHistory(symbol, period, length, from, to, page, isChart) |
| 134 | +await fcsapi.forex.getProfile(symbol) |
| 135 | +await fcsapi.forex.getExchanges(type, subType) |
| 136 | +await fcsapi.forex.advanced(params) |
| 137 | +await fcsapi.forex.getMovingAverages(symbol, period, exchange) |
| 138 | +await fcsapi.forex.getIndicators(symbol, period, exchange) |
| 139 | +await fcsapi.forex.getPivotPoints(symbol, period, exchange) |
| 140 | +await fcsapi.forex.getPerformance(symbol, exchange) |
| 141 | +await fcsapi.forex.getEconomyCalendar(country, from, to) |
| 142 | +await fcsapi.forex.getTopGainers(type, limit, period, exchange) |
| 143 | +await fcsapi.forex.getTopLosers(type, limit, period, exchange) |
| 144 | +await fcsapi.forex.getMostActive(type, limit, period, exchange) |
| 145 | +await fcsapi.forex.getSortedData(sortColumn, sortDirection, limit, type, exchange, period) |
| 146 | +await fcsapi.forex.search(query, type, exchange) |
| 147 | +await fcsapi.forex.multiUrl(urls, base) |
| 148 | +``` |
| 149 | + |
| 150 | +### Parameters |
| 151 | +| Parameter | Values | |
| 152 | +|-----------|--------| |
| 153 | +| `type` | forex, commodity | |
| 154 | +| `subType` | spot, synthetic | |
| 155 | +| `exchange` | FX, ONA, SFO, FCM | |
| 156 | +| `period` | 1m, 5m, 15m, 30m, 1h, 4h, 1D, 1W, 1M | |
| 157 | +| `country` | US, GB, DE, JP, AU, CA | |
| 158 | + |
| 159 | +--- |
| 160 | + |
| 161 | +## Stock Functions |
| 162 | + |
| 163 | +```javascript |
| 164 | +// Symbol/List |
| 165 | +await fcsapi.stock.getSymbolsList(exchange, country, sector, indices) |
| 166 | +await fcsapi.stock.search(query, exchange, country) |
| 167 | + |
| 168 | +// Indices |
| 169 | +await fcsapi.stock.getIndicesList(country, exchange) |
| 170 | +await fcsapi.stock.getIndicesLatest(symbol, country, exchange) |
| 171 | + |
| 172 | +// Latest Prices |
| 173 | +await fcsapi.stock.getLatestPrice(symbol, period, exchange, getProfile) |
| 174 | +await fcsapi.stock.getAllPrices(exchange, period) |
| 175 | +await fcsapi.stock.getLatestByCountry(country, sector, period) |
| 176 | +await fcsapi.stock.getLatestByIndices(indices, period) |
| 177 | + |
| 178 | +// Historical |
| 179 | +await fcsapi.stock.getHistory(symbol, period, length, from, to, page, isChart) |
| 180 | + |
| 181 | +// Profile & Info |
| 182 | +await fcsapi.stock.getProfile(symbol) |
| 183 | +await fcsapi.stock.getExchanges(type, subType) |
| 184 | + |
| 185 | +// Financial Data |
| 186 | +await fcsapi.stock.getEarnings(symbol, duration) |
| 187 | +await fcsapi.stock.getRevenue(symbol) |
| 188 | +await fcsapi.stock.getDividends(symbol, format) |
| 189 | +await fcsapi.stock.getBalanceSheet(symbol, duration, format) |
| 190 | +await fcsapi.stock.getIncomeStatements(symbol, duration, format) |
| 191 | +await fcsapi.stock.getCashFlow(symbol, duration, format) |
| 192 | +await fcsapi.stock.getStatistics(symbol, duration) |
| 193 | +await fcsapi.stock.getForecast(symbol) |
| 194 | +await fcsapi.stock.getStockData(symbol, dataColumn, duration, format) |
| 195 | + |
| 196 | +// Technical Analysis |
| 197 | +await fcsapi.stock.getMovingAverages(symbol, period) |
| 198 | +await fcsapi.stock.getIndicators(symbol, period) |
| 199 | +await fcsapi.stock.getPivotPoints(symbol, period) |
| 200 | +await fcsapi.stock.getPerformance(symbol) |
| 201 | + |
| 202 | +// Top Movers & Sorting |
| 203 | +await fcsapi.stock.getTopGainers(exchange, limit, period, country) |
| 204 | +await fcsapi.stock.getTopLosers(exchange, limit, period, country) |
| 205 | +await fcsapi.stock.getMostActive(exchange, limit, period, country) |
| 206 | +await fcsapi.stock.getSortedData(sortColumn, sortDirection, limit, exchange, country, period) |
| 207 | + |
| 208 | +// Filter |
| 209 | +await fcsapi.stock.getBySector(sector, limit, exchange) |
| 210 | +await fcsapi.stock.getByCountry(country, limit, exchange) |
| 211 | + |
| 212 | +// Advanced |
| 213 | +await fcsapi.stock.advanced(params) |
| 214 | +await fcsapi.stock.multiUrl(urls, base) |
| 215 | +``` |
| 216 | + |
| 217 | +### Parameters |
| 218 | +| Parameter | Values | |
| 219 | +|-----------|--------| |
| 220 | +| `type` | stock, index, fund, structured, dr | |
| 221 | +| `subType` | spot, main, cfd, common, preferred | |
| 222 | +| `exchange` | NASDAQ, NYSE, LSE, TSE, HKEX, BSE | |
| 223 | +| `period` | 1m, 5m, 15m, 30m, 1h, 4h, 1D, 1W, 1M | |
| 224 | +| `duration` | annual, interim, both | |
| 225 | +| `format` | plain, inherit | |
| 226 | +| `dataColumn` | earnings, revenue, profile, dividends, balance_sheet, income_statements, statistics, cash_flow | |
| 227 | + |
| 228 | +--- |
| 229 | + |
| 230 | +## Response Handling |
| 231 | + |
| 232 | +```javascript |
| 233 | +const response = await fcsapi.forex.getLatestPrice('FX:EURUSD'); |
| 234 | + |
| 235 | +// Check if successful |
| 236 | +if (fcsapi.isSuccess()) { |
| 237 | + const data = response.response; |
| 238 | + console.log(data); |
| 239 | +} else { |
| 240 | + console.error('Error:', fcsapi.getError()); |
| 241 | +} |
| 242 | + |
| 243 | +// Get last response |
| 244 | +const lastResponse = fcsapi.getLastResponse(); |
| 245 | + |
| 246 | +// Get response data only |
| 247 | +const data = fcsapi.getResponseData(); |
| 248 | +``` |
| 249 | + |
| 250 | +--- |
| 251 | + |
| 252 | +## Common Response Fields |
| 253 | + |
| 254 | +| Field | Description | |
| 255 | +|-------|-------------| |
| 256 | +| `o` | Open price | |
| 257 | +| `h` | High price | |
| 258 | +| `l` | Low price | |
| 259 | +| `c` | Close/Current price | |
| 260 | +| `v` | Volume | |
| 261 | +| `t` | Unix timestamp | |
| 262 | +| `ch` | Change amount | |
| 263 | +| `chp` | Change percentage | |
| 264 | + |
| 265 | +--- |
| 266 | + |
| 267 | +## Quick Examples |
| 268 | + |
| 269 | +```javascript |
| 270 | +// Initialize (uses settings from FcsConfig.js) |
| 271 | +const fcsapi = new FcsApi(); |
| 272 | + |
| 273 | +// Or with specific config |
| 274 | +const config = FcsConfig.withAccessKey('YOUR_KEY'); |
| 275 | +const fcsapi = new FcsApi(config); |
| 276 | + |
| 277 | +// Crypto |
| 278 | +await fcsapi.crypto.getLatestPrice('BINANCE:BTCUSDT'); |
| 279 | +await fcsapi.crypto.getHistory('BINANCE:BTCUSDT', '1D', 100); |
| 280 | +await fcsapi.crypto.getCoinData(null, 50, 'perf.rank_asc'); |
| 281 | +await fcsapi.crypto.getTopByMarketCap(100); |
| 282 | + |
| 283 | +// Forex |
| 284 | +await fcsapi.forex.getLatestPrice('FX:EURUSD'); |
| 285 | +await fcsapi.forex.convert('EUR', 'USD', 100); |
| 286 | +await fcsapi.forex.getEconomyCalendar('US'); |
| 287 | + |
| 288 | +// Stock |
| 289 | +await fcsapi.stock.getLatestPrice('NASDAQ:AAPL'); |
| 290 | +await fcsapi.stock.getTopGainers('NASDAQ', 10); |
| 291 | +await fcsapi.stock.getEarnings('NASDAQ:AAPL', 'annual'); |
| 292 | +await fcsapi.stock.getDividends('NASDAQ:AAPL'); |
| 293 | +await fcsapi.stock.getBalanceSheet('NASDAQ:AAPL', 'annual'); |
| 294 | +await fcsapi.stock.getStockData('NASDAQ:AAPL', 'profile,earnings,dividends'); |
| 295 | +``` |
| 296 | + |
| 297 | +--- |
| 298 | + |
| 299 | +## File Structure |
| 300 | + |
| 301 | +``` |
| 302 | +rest-api-js/ |
| 303 | +├── src/ |
| 304 | +│ ├── FcsConfig.js # Configuration (auth methods) |
| 305 | +│ ├── FcsApi.js # Main client (initializes modules) |
| 306 | +│ ├── FCS_Crypto.js # Crypto module |
| 307 | +│ ├── FCS_Forex.js # Forex module |
| 308 | +│ └── FCS_Stock.js # Stock module |
| 309 | +├── examples/ |
| 310 | +│ ├── forex-example.html # Forex demo |
| 311 | +│ ├── crypto-example.html # Crypto demo |
| 312 | +│ └── stock-example.html # Stock demo |
| 313 | +├── FUNCTIONS.md # This file |
| 314 | +├── README.md # Documentation |
| 315 | +└── LICENSE # MIT License |
| 316 | +``` |
| 317 | + |
| 318 | +--- |
| 319 | + |
| 320 | +## Get API Key |
| 321 | + |
| 322 | +Get your API key at: https://fcsapi.com/dashboard |
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