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Cryptocurrency Tracker

The goal of this project is to create a web application that allows users to track the top 30 cryptocurrencies and view detailed information on a selected coin. The application will retrieve data from a GraphQL API and display it using Next.js. Users will be able to select a coin and change the interval for which they want to view data on that coin.

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  • Database Structure (GraphQL)
  • Backend Server Logics (NextJS)
  • Realtime Capabilities and Updates (Nomic Cryptocurrency API)
  • UX Design
  • Interface Design (Semantic UI & Bootstrap)
The web application showing the list of Currency.

Bringing it together

The main requirement for this project is to create a web application that allows users to track cryptocurrencies and view detailed information on a selected coin. This will involve retrieving data from a GraphQL API and displaying it in a user-friendly way.

To build the application, we will use Next.js, a popular framework for building server-rendered or statically exported websites using React. Next.js allows us to create web pages that are optimized for performance and SEO, and it also provides a simple way to build server-side rendering into our application.

In addition to Next.js, we will use GraphQL to retrieve data from a cryptocurrency API. GraphQL is a query language for APIs that allows us to specify exactly the data we want to retrieve, and it returns the data in a predictable and flexible format. This makes it an ideal choice for retrieving data from APIs in a web application.

On the detailed information page for a selected cryptocurrency, the application will display the coin's name and symbol, a chart showing the coin's price over time with the ability for the user to choose the interval (e.g. 1 day, 1 week, 1 month), the coin's market capitalization, volume, and number of units in circulation, as well as a description of the coin and its use case. The application will retrieve this data from Nomic's API, which provides a wide range of data on cryptocurrencies including current price, market capitalization, and other key metrics. By using GraphQL, the data can be shaped exactly as needed and displayed in the application.

How I Built it

To build this cryptocurrency tracker application using Next.js and GraphQL, I first set up a Next.js project and create the basic structure of the application. This included setting up the project structure, installing the necessary dependencies, and configuring the development environment.

I created a GraphQL client using Apollo Client and integrated it with the Next.js application. This involved setting up the client and configuring it to communicate with the GraphQL API. I wrote a GraphQL query to retrieve the top 30 cryptocurrencies from the API. This involved defining the query and specifying the data that I wanted to retrieve from the API.

I displayed the list of cryptocurrencies on the home page of the application. This involved fetching the data from the API using the GraphQL query and rendering it in the application using Next.js. I added the ability to click on a cryptocurrency and view more detailed information about it on a new page. This involved creating a new page in the application and linking to it from the home page.

On the detailed information page, I used the GraphQL API to retrieve data for the selected coin and displayed it as described in the requirements. This involved writing another GraphQL query to retrieve the specific data for the selected coin and displaying it on the page. I added the ability for users to choose the interval for the chart on the detailed information page. This involved adding a control for selecting the interval and modifying the GraphQL query to retrieve the appropriate data for the selected interval.

This is how I created a functional cryptocurrency tracker that allows users to easily track the top 30 cryptocurrencies and view detailed information on a selected coin. The application uses Next.js to display the data in a user-friendly way, and GraphQL to retrieve and shape the data from the API.

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Project Advancements that can be Implemented

There are several potential advancements and features that can be added to this cryptocurrency tracker application in the future, such as integration with a cryptocurrency exchange API to allow users to buy and sell cryptocurrencies directly from the application, real-time updates using websockets or server-sent events to automatically refresh the data as it changes, a personalized portfolio tracking feature to display the current value of a user's portfolio and overall performance over time, news and analysis related to the selected cryptocurrency, a mobile app version of the application using technologies such as React Native, enhanced charting features such as technical analysis indicators and trend lines, and support for a larger number of cryptocurrencies potentially including all coins listed on a particular exchange or market data API.