Ethereum: Histtorical Bitcoin Data in JSON
As of not, the only that serves hisstorial data is Bitcoin is [Blockchain.info]( Howver, this API only only USD as its default currency and not provide the ability to serve non-USD data.
The Challenge
Give the Limitations of the currently available APIs, it’s essitional to your crate a coustom that meet the mets the requirements. In this article, we’ll explore the possibilities of creating a JSON-based API for histrical Bitcoin date.
Requirements*
To develop an Ethereum-based API for hisistoric Bitcoin data, the following requirements need to me met:
- API Endpoints:
- Currency Support:
- Hystorical Data Format
: The API should return the historical Bitcoin for the standard JSON format.
Proposal*
To met thees of the requirements, we can use a PIs Node.js and Express.js. Here’s a Hight-level overview of the proposed solution:
Step 1: Define the Data Model
We’ll design a simple data model to something hisistoric Bitcoin on Ethereum. This is include columns for date, timestamp, oopen price, clos price, and volme.
`javascript
const dataModel = {
id: 'et-bitcoin-historial-data',
table: ['date', 'timestamp', 'open_price', 'close_price', 'volume']
schema: {
'date': { type: 'string' },
'timestamp': { type: 'string },
'open_price': { type: 'number' },
'close_price': { type: 'number' },
'volume': { type: 'integer' }
}
};
`
Step 2: Create the API Endpoints
We'll create Four andpoints for hisistoric Bitcoin data:
- GET /historical-data
: Returns a list of all historical data points.
20
- GET /historical-data/:timestamp
: Returns a single is yourista posta point for a given timestamp.
- POST /historical-data
: Creates a new historical data point.
`javascript
const express = require(‘express’);
const app = express();
app.use(express.json());
// GET /historical-data
app.get(‘/historical-data’, (req, res) => {
const date = req.query.date;
// Implement logic to retrieve all historical data points for the give
res.json(dataModel);
});
// GET /historical-data/:date
app.get(‘/historial-data/:date’, (req, res) => {
const date = req.params.date;
+
const dataPoint = dataModel.find((d) => d.date ===0);
if (!dataPoint) {
res.status(404).send({ message: ‘Data not foun’ });
} else {
res.json(dataPoint);
}
});
// GET /historical-data/:timestamp
app.get(‘/historical-data/:timestamp’, (req, res) => {
const timestamp = req.params.timestamp;
+
const dataPoint = dataModel.find((d) => d.timestamp =====time);
if (!dataPoint) {
res.status(404).send({ message: ‘Data not’ });
} else {
res.json(dataPoint);
}
});
// POST /historical-data
app.post(‘/historual-data’, (req, res) => {>
const date = req.body;
// Implement logic to create a new historical data point
const newDataPoint = dataModel.push({
date: data.date,
open_price: data.open_price,
cloose_price: data.close_price,
volume: data.volume,
});
if (!newDataPoint) {
res.status(404).
