📚 Documentation & Examples
Everything you need to integrate with Barchart OnDemand
🚀 Quick Start Examples
// Barchart OnDemand API Example
const response = await fetch('https://www.barchart.com/ondemand/free-market-data-api', {
method: 'GET',
headers: {
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);Free Market Data API from Barchart
Barchart offers a free market data API that allows developers to access real-time data from futures exchanges, cash commodities, and currencies in full support of JSON or XML structure. Here, we will provide an overview of the API and include example code in JavaScript to help you get started.
API Features
- Real-time and historical data from futures exchanges, cash commodities, and currencies
- Multiple data formats, including JSON and XML
- Efficient data retrieval with HTTP GET requests
- Supports various programming languages, including JavaScript
- Comprehensive API documentation
Getting Started
To get started with the Barchart API, you need to create an account and request an API key. Once you obtain the key, you can use it to access the different endpoints provided by the API.
Examples
Here are some examples of using the Barchart API with JavaScript:
Example 1: Get Current Futures Price for Soybeans
const apiKey = "YOUR_API_KEY";
const symbol = "ZS";
fetch(`https://marketdata.websol.barchart.com/getQuote.json?key=${apiKey}&symbols=${symbol}`)
.then(response => response.json())
.then(data => {
const soybeanPrice = data.results[0].lastPrice;
console.log(`The current price of soybeans is ${soybeanPrice}`);
})
.catch(error => console.error(error));
Example 2: Get Historical Data for Crude Oil
const apiKey = "YOUR_API_KEY";
const symbol = "CL";
const from = "20210101";
const to = "20211231";
fetch(`https://marketdata.websol.barchart.com/getHistory.json?key=${apiKey}&symbol=${symbol}&type=daily&startDate=${from}&endDate=${to}`)
.then(response => response.json())
.then(data => {
const crudeOilPrices = data.results.map(result => {
return { date: result.tradeTimestamp, price: result.close };
});
console.log(crudeOilPrices);
})
.catch(error => console.error(error));
Example 3: Get News Headlines for Corn
const apiKey = "YOUR_API_KEY";
const symbol = "ZC";
fetch(`https://newsapi.barchart.com/api/v1/headlines/${symbol}?apikey=${apiKey}`)
.then(response => response.json())
.then(data => {
const cornHeadlines = data.data.map(headline => {
return { title: headline.title, url: headline.url };
});
console.log(cornHeadlines);
})
.catch(error => console.error(error));
Example 4: Get Symbol Search Results
const apiKey = "YOUR_API_KEY";
const keyword = "cattle";
fetch(`https://marketdata.websol.barchart.com/getSymbolSuggest.json?key=${apiKey}&query=${keyword}`)
.then(response => response.json())
.then(data => {
const cattleSymbols = data.results.map(result => {
return { symbol: result.symbol, name: result.name };
});
console.log(cattleSymbols);
})
.catch(error => console.error(error));
Conclusion
The Barchart free market data API provides developers with real-time and historical data from various markets, including futures exchanges, cash commodities, and currencies. Using JavaScript, you can easily access the API and retrieve the data in the format of your choice. The API documentation is comprehensive and user-friendly, making it easy to get started and build powerful applications. Happy coding!
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