stock-engine-sdk-typescript

Developer-friendly, idiomatic Typescript SDK for the stock-engine-sdk-typescript API.

Summary

Stock Oracle Service API: HTTP API for stock prices, quotes, fundamentals, instruments, portfolio, orders, analytics, vault data, and websocket streaming used by StockOracleClient.

Table of Contents

• @paxeer-network/stock-engine-sdk-typescript
  • SDK Installation
  • Requirements
  • SDK Example Usage
  • Available Resources and Operations
  • Standalone functions
  • Retries
  • Error Handling
  • Server Selection
  • Custom HTTP Client
  • Debugging
• Development
  • Maturity
  • Contributions

SDK Installation

The SDK can be installed with either npm, pnpm, bun or yarn package managers.

NPM

npm add @paxeer-network/stock-engine-sdk-typescript

PNPM

pnpm add @paxeer-network/stock-engine-sdk-typescript

Bun

bun add @paxeer-network/stock-engine-sdk-typescript

Yarn

yarn add @paxeer-network/stock-engine-sdk-typescript zod

# Note that Yarn does not install peer dependencies automatically. You will need
# to install zod as shown above.

[!NOTE] This package is published with CommonJS and ES Modules (ESM) support.

Requirements

For supported JavaScript runtimes, please consult RUNTIMES.md.

SDK Example Usage

Example

import { StockOracleServiceApiTypescript } from "@paxeer-network/stock-engine-sdk-typescript";

const stockOracleServiceApiTypescript = new StockOracleServiceApiTypescript();

async function run() {
  const result = await stockOracleServiceApiTypescript.getHealth();

  console.log(result);
}

run();

Available Resources and Operations

StockOracleServiceApiTypescript SDK

• getHealth - Service health and API listing
• getPrices - All current prices
• getPricesSymbol - Price for a symbol
• getApiStocksSymbol - Comprehensive stock data
• getApiStocks - Comprehensive data for multiple stocks
• getApiStocksSymbolQuote - Stock quote
• getApiQuotes - Quotes for multiple symbols
• getApiStocksSymbolFundamentals - Stock fundamentals
• getApiFundamentals - Fundamentals for multiple symbols
• getApiStocksSymbolHistoricals - Historical price data
• getApiHistoricals - Historicals for multiple symbols
• getApiStocksSymbolInstrument - Instrument for symbol
• getApiInstrumentsId - Instrument by ID
• getApiInstrumentsIdSplits - Instrument splits
• getApiSearch - Search instruments
• getApiMarkets - All markets
• getApiMarketsMic - Market by MIC
• getApiMarketsMicHoursDate - Market hours for date
• getApiPopular - Popular stocks
• getApiTrackedSymbols - Tracked symbols
• getApiTrackedStocks - Tracked stocks full data
• getApiPortfolioAddress - Portfolio overview
• getApiPortfolioAddressPositions - User positions
• getApiPortfolioAddressPositionsStockToken - Position for a stock
• getApiPortfolioAddressOrders - User orders
• getApiPortfolioAddressPnl - User PnL
• getApiPortfolioAddressPerformance - User performance metrics
• getApiPortfolioAddressBalances - Live token balances
• getApiPortfolioAddressReconcile - Reconcile positions with chain
• postApiPortfolioAddressBackfill - Backfill user historical data
• getApiOrdersRecent - Recent orders
• getApiOrdersStockStockToken - Orders for a stock
• getApiIndexerStatus - Indexer status
• postApiIndexerSync - Trigger indexer sync
• getApiLeaderboard - Trader leaderboard
• getApiHoldingsSummary - Holdings summary
• getApiVaultConfig - Vault configuration
• getApiVaultStocks - Tokenized stocks and stables
• getWs - WebSocket upgrade for real-time price updates

Standalone functions

All the methods listed above are available as standalone functions. These functions are ideal for use in applications running in the browser, serverless runtimes or other environments where application bundle size is a primary concern. When using a bundler to build your application, all unused functionality will be either excluded from the final bundle or tree-shaken away.

To read more about standalone functions, check FUNCTIONS.md.

• getApiFundamentals - Fundamentals for multiple symbols
• getApiHistoricals - Historicals for multiple symbols
• getApiHoldingsSummary - Holdings summary
• getApiIndexerStatus - Indexer status
• getApiInstrumentsId - Instrument by ID
• getApiInstrumentsIdSplits - Instrument splits
• getApiLeaderboard - Trader leaderboard
• getApiMarkets - All markets
• getApiMarketsMic - Market by MIC
• getApiMarketsMicHoursDate - Market hours for date
• getApiOrdersRecent - Recent orders
• getApiOrdersStockStockToken - Orders for a stock
• getApiPopular - Popular stocks
• getApiPortfolioAddress - Portfolio overview
• getApiPortfolioAddressBalances - Live token balances
• getApiPortfolioAddressOrders - User orders
• getApiPortfolioAddressPerformance - User performance metrics
• getApiPortfolioAddressPnl - User PnL
• getApiPortfolioAddressPositions - User positions
• getApiPortfolioAddressPositionsStockToken - Position for a stock
• getApiPortfolioAddressReconcile - Reconcile positions with chain
• getApiQuotes - Quotes for multiple symbols
• getApiSearch - Search instruments
• getApiStocks - Comprehensive data for multiple stocks
• getApiStocksSymbol - Comprehensive stock data
• getApiStocksSymbolFundamentals - Stock fundamentals
• getApiStocksSymbolHistoricals - Historical price data
• getApiStocksSymbolInstrument - Instrument for symbol
• getApiStocksSymbolQuote - Stock quote
• getApiTrackedStocks - Tracked stocks full data
• getApiTrackedSymbols - Tracked symbols
• getApiVaultConfig - Vault configuration
• getApiVaultStocks - Tokenized stocks and stables
• getHealth - Service health and API listing
• getPrices - All current prices
• getPricesSymbol - Price for a symbol
• getWs - WebSocket upgrade for real-time price updates
• postApiIndexerSync - Trigger indexer sync
• postApiPortfolioAddressBackfill - Backfill user historical data

Retries

Some of the endpoints in this SDK support retries. If you use the SDK without any configuration, it will fall back to the default retry strategy provided by the API. However, the default retry strategy can be overridden on a per-operation basis, or across the entire SDK.

To change the default retry strategy for a single API call, simply provide a retryConfig object to the call:

import { StockOracleServiceApiTypescript } from "@paxeer-network/stock-engine-sdk-typescript";

const stockOracleServiceApiTypescript = new StockOracleServiceApiTypescript();

async function run() {
  const result = await stockOracleServiceApiTypescript.getHealth({
    retries: {
      strategy: "backoff",
      backoff: {
        initialInterval: 1,
        maxInterval: 50,
        exponent: 1.1,
        maxElapsedTime: 100,
      },
      retryConnectionErrors: false,
    },
  });

  console.log(result);
}

run();

If you'd like to override the default retry strategy for all operations that support retries, you can provide a retryConfig at SDK initialization:

import { StockOracleServiceApiTypescript } from "@paxeer-network/stock-engine-sdk-typescript";

const stockOracleServiceApiTypescript = new StockOracleServiceApiTypescript({
  retryConfig: {
    strategy: "backoff",
    backoff: {
      initialInterval: 1,
      maxInterval: 50,
      exponent: 1.1,
      maxElapsedTime: 100,
    },
    retryConnectionErrors: false,
  },
});

async function run() {
  const result = await stockOracleServiceApiTypescript.getHealth();

  console.log(result);
}

run();

Error Handling

StockOracleServiceAPITypescriptError is the base class for all HTTP error responses. It has the following properties:

| Property | Type | Description | | ------------------- | ---------- | ------------------------------------------------------ | | error.message | string | Error message | | error.statusCode | number | HTTP response status code eg 404 | | error.headers | Headers | HTTP response headers | | error.body | string | HTTP body. Can be empty string if no body is returned. | | error.rawResponse | Response | Raw HTTP response |

Example

import { StockOracleServiceApiTypescript } from "@paxeer-network/stock-engine-sdk-typescript";
import * as errors from "@paxeer-network/stock-engine-sdk-typescript/models/errors";

const stockOracleServiceApiTypescript = new StockOracleServiceApiTypescript();

async function run() {
  try {
    const result = await stockOracleServiceApiTypescript.getHealth();

    console.log(result);
  } catch (error) {
    if (error instanceof errors.StockOracleServiceAPITypescriptError) {
      console.log(error.message);
      console.log(error.statusCode);
      console.log(error.body);
      console.log(error.headers);
    }
  }
}

run();

Error Classes

Primary error:

• StockOracleServiceAPITypescriptError: The base class for HTTP error responses.

Network errors:

• ConnectionError: HTTP client was unable to make a request to a server.
• RequestTimeoutError: HTTP request timed out due to an AbortSignal signal.
• RequestAbortedError: HTTP request was aborted by the client.
• InvalidRequestError: Any input used to create a request is invalid.
• UnexpectedClientError: Unrecognised or unexpected error.

Inherit from StockOracleServiceAPITypescriptError:

• ResponseValidationError: Type mismatch between the data returned from the server and the structure expected by the SDK. See error.rawValue for the raw value and error.pretty() for a nicely formatted multi-line string.

Server Selection

Override Server URL Per-Client

The default server can be overridden globally by passing a URL to the serverURL: string optional parameter when initializing the SDK client instance. For example:

import { StockOracleServiceApiTypescript } from "@paxeer-network/stock-engine-sdk-typescript";

const stockOracleServiceApiTypescript = new StockOracleServiceApiTypescript({
  serverURL: "https://api.stock-oracle.example",
});

async function run() {
  const result = await stockOracleServiceApiTypescript.getHealth();

  console.log(result);
}

run();

Custom HTTP Client

The TypeScript SDK makes API calls using an HTTPClient that wraps the native Fetch API. This client is a thin wrapper around fetch and provides the ability to attach hooks around the request lifecycle that can be used to modify the request or handle errors and response.

The HTTPClient constructor takes an optional fetcher argument that can be used to integrate a third-party HTTP client or when writing tests to mock out the HTTP client and feed in fixtures.

The following example shows how to use the "beforeRequest" hook to to add a custom header and a timeout to requests and how to use the "requestError" hook to log errors:

import { StockOracleServiceApiTypescript } from "@paxeer-network/stock-engine-sdk-typescript";
import { HTTPClient } from "@paxeer-network/stock-engine-sdk-typescript/lib/http";

const httpClient = new HTTPClient({
  // fetcher takes a function that has the same signature as native `fetch`.
  fetcher: (request) => {
    return fetch(request);
  }
});

httpClient.addHook("beforeRequest", (request) => {
  const nextRequest = new Request(request, {
    signal: request.signal || AbortSignal.timeout(5000)
  });

  nextRequest.headers.set("x-custom-header", "custom value");

  return nextRequest;
});

httpClient.addHook("requestError", (error, request) => {
  console.group("Request Error");
  console.log("Reason:", `${error}`);
  console.log("Endpoint:", `${request.method} ${request.url}`);
  console.groupEnd();
});

const sdk = new StockOracleServiceApiTypescript({ httpClient });

Debugging

You can setup your SDK to emit debug logs for SDK requests and responses.

You can pass a logger that matches console's interface as an SDK option.

[!WARNING] Beware that debug logging will reveal secrets, like API tokens in headers, in log messages printed to a console or files. It's recommended to use this feature only during local development and not in production.

import { StockOracleServiceApiTypescript } from "@paxeer-network/stock-engine-sdk-typescript";

const sdk = new StockOracleServiceApiTypescript({ debugLogger: console });

Contributions

While we value open-source contributions to this SDK, this library is generated programmatically. Any manual changes added to internal files will be overwritten on the next generation. We look forward to hearing your feedback. Feel free to open a PR or an issue with a proof of concept and we'll do our best to include it in a future release.

SDK Created by Scalar