### Install FinancialModelingPrep NuGet Package

Source: https://github.com/matthiware/financialmodelingprep.net/blob/master/README.md

This command installs the MatthiWare.FinancialModelingPrep library into your .NET project using the NuGet Package Manager console.

```PowerShell
PM> Install-Package MatthiWare.FinancialModelingPrep
```

--------------------------------

### Get Stock Price Quote using C#

Source: https://github.com/matthiware/financialmodelingprep.net/blob/master/README.md

This C# code snippet demonstrates how to use the initialized API client to fetch the latest stock price quote for a given symbol (AAPL in this case) and print the price to the console.

```C#
var response = await api.CompanyValuation.GetQuoteAsync("AAPL");

// Display Apple Stock Quote
Console.WriteLine($"$AAPL is currently trading at: {response.Data.Price}");
```

--------------------------------

### Create FMP API Client using Factory

Source: https://github.com/matthiware/financialmodelingprep.net/blob/master/README.md

This C# code snippet shows how to create an instance of the FinancialModelingPrepApiClient directly using the factory method, without relying on a Dependency Injection container. This is useful for simple applications or scenarios where DI is not used.

```C#
using MatthiWare.FinancialModelingPrep;

var api = FinancialModelingPrepApiClientFactory.CreateClient(new FinancialModelingPrepOptions());

// do something with api like getting the latest Apple Stock Quote
var quoteResult = await api.CompanyValuation.GetQuoteAsync("AAPL");
```

--------------------------------

### Register FinancialModelingPrepApiClient in Dependency Injection

Source: https://github.com/matthiware/financialmodelingprep.net/blob/master/README.md

This C# code snippet demonstrates how to register the FinancialModelingPrepApiClient with a .NET Dependency Injection container, typically in your application's startup configuration. It requires providing your API key via the FinancialModelingPrepOptions.

```C#
using MatthiWare.FinancialModelingPrep;

Services.AddFinancialModelingPrepApiClient(new FinancialModelingPrepOptions()
{
    ApiKey = "API-KEY-HERE"
});

var api = ServiceProvider.GetRequiredService<IFinancialModelingPrepApiClient>();

// do something with api like getting the latest Apple Stock Quote
var quoteResult = await api.CompanyValuation.GetQuoteAsync("AAPL");
```

--------------------------------

### ApiResponse Generic Wrapper Structure

Source: https://github.com/matthiware/financialmodelingprep.net/blob/master/README.md

This C# code defines the structure of the generic ApiResponse<T> class used by the library to wrap all API responses. It includes properties for the data, error message, and a flag indicating if an error occurred.

```C#
public class ApiResponse<T>
{
    /// <summary>
    /// Error message if any occured
    /// </summary>
    public string Error { get; }

    /// <summary>
    /// True if there was an error with the request otherwise false
    /// </summary>
    public bool HasError { get; }

    /// <summary>
    /// The FMP API response object <see cref="T"/>
    /// </summary>
    public T Data { get; }
}
```

--------------------------------

### Handle ApiResponse Error in C#

Source: https://github.com/matthiware/financialmodelingprep.net/blob/master/README.md

This C# code snippet demonstrates how to check the HasError property of the ApiResponse<T> object after making an API call and handle potential errors by checking the Error property.

```C#
var response = await api.CompanyValuation.GetQuoteAsync("AAPL");

// Display Apple Stock Quote
if (!quoteResult.HasError)
{
   Console.WriteLine($"$AAPL is currently trading at: {response.Data.Price}");
}
else
{
   Console.WriteLine($"Error occured, message: {response.Error}");
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.