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crypto_compare_all_data.js
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crypto_compare_all_data.js
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
// import { apiKeys } from './passwordsHolder';
var Put;
(function (Put) {
//Holds access keys for APIs
var pH = require('./passwordsHolder');
//To connect to Amazon Web Services DynamoDB database
var AWS = require("aws-sdk");
AWS.config.update({
region: "us-east-1",
endpoint: "https://dynamodb.us-east-1.amazonaws.com",
accessKeyId: pH.apiKeys.awsAccessKeyId,
secretAccessKey: pH.apiKeys.awsSecretAccessKey,
sessionToken: pH.apiKeys.awsSessionToken
});
//Create new DocumentClient
var dynamoDB = new AWS.DynamoDB({ maxRetries: 13, retryDelayOptions: { base: 200 } });
//Used to writing to data json file
var fs = require("fs");
//Time library that we will use to increment dates.
var moment = require('moment');
//Axios will handle HTTP requests to web service
var axios = require('axios');
//Reads keys from .env file
var dotenv = require('dotenv');
//Copy variables in file into environment variables
dotenv.config();
var SageMakerData = /** @class */ (function () {
function SageMakerData() {
}
return SageMakerData;
}());
var currencies = ["SOL", "LINK", "LUNA", "ATOM", "DOT"];
var numberOfPricesToGET = 200;
var dynamoDBBatch = [];
//Class that wraps cryptoCompare web service
var cryptoCompareAllData = /** @class */ (function () {
function cryptoCompareAllData() {
//Base URL of CryptoCompare
this.baseURL = "https://min-api.cryptocompare.com/data/v2/histoday";
this.accessKey = pH.apiKeys.cryptoCompareAccessKey;
}
//Returns a Promise that will get the exchange rates for the specified date
cryptoCompareAllData.prototype.getExchangeRates = function (currency) {
//Build URL for API call
var url = this.baseURL + "?";
url += "fsym=" + currency + "&tsym=USD&limit=" + numberOfPricesToGET;
url += "&api_key=" + this.accessKey;
//Output URL and return Promise
console.log("Building cryptoCompare Promise with URL: " + url);
return axios.get(url);
};
return cryptoCompareAllData;
}());
Put.cryptoCompareAllData = cryptoCompareAllData;
// assigns seconds and date
function convertSecondsToDateAndTime(secondsSinceEpoch) {
var date = new Date(secondsSinceEpoch * 1000).toISOString().split('T');
return date[0] + " " + date[1].split('.')[0];
}
//Gets the historical data for a range of dates.
function getHistoricalData() {
return __awaiter(this, void 0, void 0, function () {
var _loop_1, index, batchNumber, rowNumber, batch, row, item, params;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_loop_1 = function (index) {
var currency, cryptoCompare1, promiseArray, sageMakerTrain, sageMakerEndpoint, trainTarget_1, endpointTarget_1, trainTargetIndex_1, trainLimit_1, resultArray, data_1, cryptoData, endpointIndex, secondsSinceEpochTrain, secondsSinceEpochEndpoint, trainStart, endpointStart, error_1;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
currency = currencies[index];
cryptoCompare1 = new cryptoCompareAllData();
promiseArray = [];
promiseArray.push(cryptoCompare1.getExchangeRates(currency));
_b.label = 1;
case 1:
_b.trys.push([1, 3, , 4]);
sageMakerTrain = new SageMakerData();
sageMakerEndpoint = new SageMakerData();
trainTarget_1 = [];
endpointTarget_1 = [];
trainTargetIndex_1 = 0;
trainLimit_1 = Math.ceil(numberOfPricesToGET * 0.5);
return [4 /*yield*/, Promise.all(promiseArray)];
case 2:
resultArray = _b.sent();
// resultArray = promiseArray['data'];
console.log(resultArray[0]['data']);
data_1 = resultArray[0]['data'];
//Check that API call succeeded.
if (data_1.Response != "Success")
console.log("UNSUCCESSFUL REQUEST" + JSON.stringify(data_1.Response));
cryptoData = data_1.Data.Data;
endpointIndex = trainLimit_1;
secondsSinceEpochTrain = cryptoData[endpointIndex].time;
secondsSinceEpochEndpoint = cryptoData[trainTargetIndex_1].time;
trainStart = convertSecondsToDateAndTime(secondsSinceEpochTrain);
endpointStart = convertSecondsToDateAndTime(secondsSinceEpochEndpoint);
sageMakerTrain.start = trainStart;
sageMakerEndpoint.start = trainStart; //both should have the same starting date.
cryptoData.forEach(function (crypto, index) {
console.log(crypto);
if (data_1 == undefined) {
console.log("Error: undefined" + JSON.stringify(data_1));
}
else {
//Create date object to get date in UNIX priceTimeStamp
var date = new Date();
var price = (crypto.open + crypto.low + crypto.high) / 3; //takes the average price for the coin
var priceTimeStamp = crypto.time;
var dynamoDBItem = {
PriceTimeStamp: priceTimeStamp,
Price: price,
Currency: currency
};
dynamoDBBatch.push(dynamoDBItem);
if (trainTargetIndex_1++ < trainLimit_1)
trainTarget_1.push(price);
else
endpointTarget_1.push(price);
}
});
//Write to JSON files
sageMakerTrain.target = trainTarget_1;
sageMakerEndpoint.target = endpointTarget_1;
//Writes training data
fs.writeFile('./AWS_BACKUP/s3/cst3130-machine-learning-data/numerical_data_' + currency + '.json', JSON.stringify(sageMakerTrain), function (err) {
if (err) {
throw err;
}
console.log("JSON data is saved.");
});
//Writes endpoint data
fs.writeFile('./AWS_BACKUP/s3/cst3130-machine-learning-data/numerical_data_' + currency + '_train.json', JSON.stringify(sageMakerEndpoint), function (err) {
if (err) {
throw err;
}
console.log("JSON data is saved.");
});
return [3 /*break*/, 4];
case 3:
error_1 = _b.sent();
console.log("Error: " + JSON.stringify(error_1));
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
};
index = 0;
_a.label = 1;
case 1:
if (!(index < currencies.length)) return [3 /*break*/, 4];
return [5 /*yield**/, _loop_1(index)];
case 2:
_a.sent();
_a.label = 3;
case 3:
index++;
return [3 /*break*/, 1];
case 4:
batchNumber = 0;
rowNumber = 25 * batchNumber;
for (batchNumber = 0; batchNumber < dynamoDBBatch.length && dynamoDBBatch[rowNumber] != undefined; batchNumber++) {
batch = [];
for (rowNumber = 25 * batchNumber; rowNumber < ((batchNumber + 1) * 25) && dynamoDBBatch[rowNumber] != undefined; rowNumber++) {
row = dynamoDBBatch[rowNumber];
item = {
PutRequest: {
Item: {
PriceTimeStamp: { N: (row.PriceTimeStamp + "") },
Currency: { S: row.Currency },
Price: { N: (row.Price + "") },
}
}
};
batch.push(item);
}
params = {
RequestItems: {
"CryptoData": batch
}
};
//Store data in DynamoDB and handle errors
dynamoDB.batchWriteItem(params, function (err, data) {
if (err) {
console.log("Error", err);
}
else {
console.log("Success", data);
}
});
}
return [2 /*return*/];
}
});
});
}
//Call function to get historical data
getHistoricalData();
})(Put || (Put = {}));
//# sourceMappingURL=crypto_compare_all_data.js.map