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Ethereum Futures API Call on Binance with AWS Lambda and NodeJS 12
As a developer, you are probably familiar with the importance of seamless integration between frontend and backend systems. In this article, we will explore how to connect to the Ethereum Futures API on Binance using AWS Lambda and NodeJS 12.
Introduction
The Ethereum Futures API provides an easy-to-use interface for derivatives trading on the Binance exchange. The API allows developers to make API calls from their frontends, such as web applications or mobile apps, without having to establish direct connections to Binance servers. However, deploying a NodeJS 12 application that interacts directly with the Binance API can be difficult due to security and performance issues.
Setting up AWS Lambda
To solve this problem, we will use AWS Lambda as our backend service. This allows us to run NodeJS 12 on the cloud without exposing sensitive information or establishing direct connections to Binance servers. Here is a step-by-step guide:
- Create an AWS Lambda function
: Go to the AWS Management Console and navigate to the Lambda dashboard. Create a new function with the following settings:
- Function name:
binance-futures-lambda
- Runtime: NodeJS 12
- Role: Select “Custom role” and create a new role with permissions to access Binance API.
- Deploy code: Deploy your NodeJS 12 application to Lambda using the
lambda.zipfile or AWS CLI.
Connecting to Binance API
Now that we have our NodeJS 12 function set up, we can connect to Binance API using a library like axios. Here is a sample code snippet:
const axios = require('axios');
exports.handler = async (event) => {
try {
const response = await axios.post( event);
console.log(response.data);
} catch (error) {
console.error(error);
}
};
In this example, we are sending a POST request to the Binance API /new-order-tradeendpoint with theeventobject as data. Theaxioslibrary will handle the authentication and authorization for us.
Running the Lambda function
To run the Lambda function, follow these steps:
- Create a new deployment package: Create a new ZIP file containing your NodeJS 12 application code.
- Upload the deployment package to Lambda: Upload the deployment package to Lambda using the AWS CLI or console.
- Activate the Lambda function: Activate the Lambda function by sending an API call from a front-end service, such as a web application.
Troubleshooting ECONNREFUSED 127.0.0.1:
If you are having trouble connecting to the Binance API, you may encounterECONNREFUSED` error codes. This can be caused by a variety of reasons, including:
- Insecure DNS settings or firewall rules
- Network connectivity issues
- Incorrect credentials
To resolve this issue, ensure that your NodeJS 12 function has the correct permissions and is running in the correct AWS Lambda environment.
Conclusion
In this article, we have explored how to connect to the Ethereum futures API on Binance using AWS Lambda and NodeJS 12. By deploying a secure and performant solution, you can seamlessly integrate your front-end application with the Binance API. Remember to always follow security and performance optimization best practices when building production-ready applications.
I hope this helps! Let me know if you have any questions or need further assistance.