polygon-dotnet-client

.NET client for getting stocks, crypto, forex, and indices data from Polygon.io API.

Prerequisites

Create an account with Polygon. Upon account creation, an API key will be provided for you.

You can manage your API keys on the Dashboard

Setup

Install the Polygon.Client NuGet package

Package Manager PM > Install-Package Polygon.Client

Using the API key that was generated for you earlier, you can create a Polygon client in the following ways.

Without Dependency Injection

using var client = new PolygonClient("API KEY GOES HERE");

With Dependency Injection

Install the Polygon.Client.Dependency NuGet package.

Package Manager PM > Install-Package Polygon.Client.DependencyInjection

services.AddPolygonClient("API KEY GOES HERE");

Usage

public class SomeClass { private readonly IPolygonClient _polygonClient; public SomeClass(IPolygonClient polygonClient) { _polygonClient = polygonClient; } public async Task<PolygonAggregateResponse> DoSomething() { // This will get all of the 1-minute bars for 2024-04-20 var request = new PolygonAggregatesRequest { Ticker = "SPY", Multuplier = 1 Timespan = "minute", From = "2024-04-20", To = "2024-04-20" }; var response = await _polygonClient.GetAggregatesAsync(request); return response; } }