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Track and Display Stock Prices Using C++ and an API

Aditya Bhuyan
3 min readFeb 3, 2025

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Photo by Austin Distel on Unsplash

Learn how to fetch real-time stock prices using C++ by integrating with a stock price API.

Introduction

In this tutorial, we will learn how to track and display stock prices in real-time using C++ programming language. We will use an API to retrieve the stock data and then display it to the user. The program will send HTTP requests to a stock price service and parse the returned JSON data. This is a practical application of working with APIs in C++ and handling real-time data.

Objective

The main objective is to create a C++ program that fetches stock data from an API and displays the current stock price of a given company. We will be using an open stock price API like Alpha Vantage or Yahoo Finance, and the program will process the data and show it in a user-friendly format.

Code Implementation

#include #include #include <curl/curl.h> #include <json/json.h> // Function to write data fetched by curl into a string size_t WriteCallback(void *contents, size_t size, size_t nmemb, void *userp) { ((std::string*)userp)->append((char*)contents, size * nmemb); return size * nmemb; } int main() { // Define the stock symbol and API key for Alpha Vantage std::string symbol = "AAPL"; // Apple Inc stock std::string…

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Aditya Bhuyan
Aditya Bhuyan

Written by Aditya Bhuyan

I am Aditya. I work as a cloud native specialist and consultant. In addition to being an architect and SRE specialist, I work as a cloud engineer and developer.

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