package com.java.practiceQuestion;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.Scanner;
public class APIMain {
// =================================================================================================================//
// method to search train using train number
public static void searchTrain() {
// getting bufferedReader instance to take input from user
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
// printing on console
System.out.println("Enter the train number");
// taking input from user
int trainNumber = 0;
try {
trainNumber = Integer.parseInt(bufferedReader.readLine());
} catch (NumberFormatException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
// building the complete url by adding train number with it.
String urlString = "https://irctc1.p.rapidapi.com/api/v1/searchTrain?query=" + trainNumber;
// Http Request : The request sent by the computer to a web server, contains all
// sorts of potentially interesting information
// The HTTP request method indicates the method to be performed on the resource
// identified by the Requested URI (Uniform Resource Identifier).
// build : Builds and returns an HttpRequest.
HttpRequest request = HttpRequest.newBuilder().uri(URI.create(urlString))
.header("X-RapidAPI-Key", "e8094312d4msh5b6888fbfd812d5p1cb25djsn92dd6f76700c")
.header("X-RapidAPI-Host", "irctc1.p.rapidapi.com")
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
// creating and initializing an variable of HttpResponse type
HttpResponse<String> response = null;
// try-catch block to catch the exception
try {
// HttpClient is used to send requests and retrieve their responses
response = HttpClient.newHttpClient().
send(request, HttpResponse.BodyHandlers.ofString());
// catch block to catch the exception if exists
} catch (IOException | InterruptedException e) {
// This method prints a stack trace for this Throwable object on the error
// output stream that is the value of the field System.err. The first line
// of output contains the result of the toString() method for this object.
// Remaining lines represent data previously recorded by the method
// fillInStackTrace().
e.printStackTrace();
}
// printing the response on console
System.out.println(response.body());
}
// =================================================================================================================//
// method to search station using initials of any stations of Indian railways
public static void searchStation() {
// getting the instance of buffered reader to take input from user
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
// printing on the console
System.out.println("Enter the first initials of any valid Indian Railways station name");
// variable to store station name
String stationName = null;
// try block
try {
// taking input from user;
stationName = bufferedReader.readLine().toUpperCase();
// catch block
} catch (IOException e1) {
e1.printStackTrace();
}
// building the complete url by adding train number with it.
String urlString = "https://irctc1.p.rapidapi.com/api/v1/searchTrain?query=" + stationName;
HttpRequest request = HttpRequest.newBuilder().uri(URI.create(urlString))
.header("X-RapidAPI-Key", "e8094312d4msh5b6888fbfd812d5p1cb25djsn92dd6f76700c")
.header("X-RapidAPI-Host", "irctc1.p.rapidapi.com")
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
HttpResponse<String> response = null;
try {
response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
} catch (IOException | InterruptedException e) {
e.printStackTrace();
}
System.out.println(response.body());
}
// =================================================================================================================//
// method to find all trains between two stations
public static void trainsBetweenStations() {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the name of boarding station");
String boardingStation = null;
try {
boardingStation = bufferedReader.readLine();
} catch (IOException e1) {
e1.printStackTrace();
}
System.out.println("Enter the name of destination station");
String destStation = null;
try {
destStation = bufferedReader.readLine();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// building the complete url by adding train number with it
String urlString = "https://irctc1.p.rapidapi.com/api/v2/trainBetweenStations?fromStationCode="
+ boardingStation + "&toStationCode=" + destStation;
HttpRequest request = HttpRequest.newBuilder().uri(URI.create(urlString))
.header("X-RapidAPI-Key", "e8094312d4msh5b6888fbfd812d5p1cb25djsn92dd6f76700c")
.header("X-RapidAPI-Host", "irctc1.p.rapidapi.com")
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
HttpResponse<String> response = null;
try {
response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
} catch (IOException | InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(response.body());
}
// =================================================================================================================//
// method to find the train live status
public static void trainLiveStatus() {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the train number");
int trainNumber = 0;
try {
trainNumber = Integer.parseInt(bufferedReader.readLine());
} catch (NumberFormatException | IOException e1) {
e1.printStackTrace();
}
// building the complete url by adding train number with it.
String urlString = "https://irctc1.p.rapidapi.com/api/v1/searchTrain?query=" + trainNumber + "&startDay=1";
HttpRequest request = HttpRequest.newBuilder().uri(URI.create(urlString))
.header("X-RapidAPI-Key", "e8094312d4msh5b6888fbfd812d5p1cb25djsn92dd6f76700c")
.header("X-RapidAPI-Host", "irctc1.p.rapidapi.com")
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
HttpResponse<String> response = null;
try {
response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
} catch (IOException | InterruptedException e) {
e.printStackTrace();
}
System.out.println(response.body());
}
// =================================================================================================================//
// method to get the PNR status of any train using PNR number
public static void getPNRStatus() {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the PNR Number");
String pnrString = null;
try {
pnrString = bufferedReader.readLine();
} catch (IOException e1) {
e1.printStackTrace();
}
String urlString = "https://irctc1.p.rapidapi.com/api/v3/getPNRStatus?pnrNumber=" + pnrString;
HttpRequest request = HttpRequest.newBuilder().uri(URI.create(urlString))
.header("X-RapidAPI-Key", "e8094312d4msh5b6888fbfd812d5p1cb25djsn92dd6f76700c")
.header("X-RapidAPI-Host", "irctc1.p.rapidapi.com")
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
HttpResponse<String> response = null;
try {
response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
} catch (IOException | InterruptedException e) {
e.printStackTrace();
}
System.out.println(response.body());
}
// =================================================================================================================//
// driver method
public static void main(String[] args) throws IOException, InterruptedException {
// try block
try (Scanner scanner = new Scanner(System.in)) {
// printing on the console
System.out.println("Welcome to Indian Railways");
System.out.println("1. Press 1 to search the train using train number");
System.out.println("2. Press 2 to seach stations using initials of station");
System.out.println("3. Press 3 to get all trains between two stations");
System.out.println("4. Press 4 to get live running train status");
System.out.println("5. Press 5 to get PNR status");
System.out.println("6. Press 6 to exit");
// infinite loop
while (true) {
// taking input from user
int button = scanner.nextInt();
switch (button) {
// witch statement : calling respective methods according to user's input
case 1: // to search the train using train number
searchTrain();
break;
case 2: // to search stations using initials of station
searchStation();
break;
case 3: // to get all trains between two stations
trainsBetweenStations();
break;
case 4: // to get live running train status
trainLiveStatus();
break;
case 5: // to get PNR status
getPNRStatus();
break;
case 6: // to exit from the program
System.out.println("Thankyou for using the app!!!");
System.exit(button);
break;
}
}
}
}
}
