Digi-Key API - the C# library for the Digi-Key Api V3

The Digi-Key API library is a comprehensive tool for accessing the V3 API and interacting with Digi-Key's data in real-time. This library implements all Product Information endpoints, allowing you to easily retrieve detailed information about products available on Digi-Key.

In addition to Product Information endpoints, the library also includes support for taxonomy search. This means you can easily search for products using Digi-Key's hierarchical classification system, making it easier to find the products you need.

With the Digi-Key API library, you can easily retrieve and interact with data from Digi-Key in your own projects, saving you time and money and streamlining your workflow.

Dependencies

• RestSharp - 107.0.0 or later
• Json.NET - 7.0.0 or later
• JsonSubTypes - 1.2.0 or later

Getting Started

This example uses the apiclient.config file for loading configuration details. Use the OriginalCircuit.DigiKey.Api.OAuth2ConsoleClient project to generate a config file.

You do not need to explicitly load the config file, it will look for it and read it automatically.

using System;
using System.Diagnostics;
using OriginalCircuit.DigiKey.Api;
using OriginalCircuit.DigiKey.Api.Client;
using OriginalCircuit.DigiKey.Api.Model;

namespace Example
{
    public class Example
    {
        public void main()
        {
            if (ApiClientConfig.Instance.ExpirationDateTime < DateTime.Now)
            {
                Console.WriteLine("OAuth2 Access Token needs to be refreshed.");

                var oAuth2Service = new OAuth2Service();
                var oAuth2AccessToken = await OAuth2Helpers.RefreshTokenAsync();
                if (oAuth2AccessToken.IsError)
                {
                    Console.WriteLine("Refresh token might be invalid, token cannot refresh.");
                    Console.ReadKey();
                    return;
                }
            }

            try
            {
                 var partSearch = new PartSearchApi();
                 var catResponse = await partSearch.Categories();
           
            }
            catch (Exception e)
            {
                Debug.Print("Exception when calling PartSearchApi.Categories: " + e.Message );
            }

        }
    }
}

Using a Custom Configuration Source

You can create your own IApiClientConfigHelper to load a configuration from a database or other source.

The ApiClientConfig.Instance needs to be set before any other ApiClientConfig or API class is called.

using System;
using System.Diagnostics;
using OriginalCircuit.DigiKey.Api;
using OriginalCircuit.DigiKey.Api.Client;
using OriginalCircuit.DigiKey.Api.Model;

namespace Example
{
    public class Example
    {
        public void main()
        {   
            // set configuration source to custom database source
            ApiClientConfig.Instance = new DigiKeyDatabaseConfiguration();

            if (ApiClientConfig.Instance.ExpirationDateTime < DateTime.Now)
            {
                Console.WriteLine("OAuth2 Access Token needs to be refreshed.");

                var oAuth2Service = new OAuth2Service();
                var oAuth2AccessToken = await OAuth2Helpers.RefreshTokenAsync();
                if (oAuth2AccessToken.IsError)
                {
                    Console.WriteLine("Refresh token might be invalid, token cannot refresh.");
                    Console.ReadKey();
                    return;
                }
            }

            try
            {
                 var partSearch = new PartSearchApi();
                 var catResponse = await partSearch.Categories();
           
            }
            catch (Exception e)
            {
                Debug.Print("Exception when calling PartSearchApi.Categories: " + e.Message );
            }

        }
    }
}

Logging API Calls

The library contains an event you can subscribe to, which will give you the request and response objects if you want to log them for debugging or testing purposes.

// Subscribe to API call completed
ApiClient.Instance.ApiCallCompleted += (request, response) =>
{
    LogApiCall(request, response);
};

Keyword Search

Here's a complete example keyword search which will bring up the first 50 results from a category.

var partSearch = new PartSearchApi();

List<int> taxonomy = new List<int>();
// category to search
taxonomy.Add(categoryId);
var filters = new Filters(taxonomy);

// sorting options
var sort = new SortParameters(SortOption.SortByQuantityAvailable, SortDirection.Descending, 0);

// search configuration
var searchOptions = new List<SearchOption>();
searchOptions.Add(SearchOption.ExcludeNonStock);
searchOptions.Add(SearchOption.InStock);
searchOptions.Add(SearchOption.CollapsePackagingTypes); // doesn't seem to do anything

// run search
int recordCount = 50;
var results = await partSearch.KeywordSearch(new KeywordSearchRequest()
{
    Keywords = "", // add your keywords here
    RecordCount = recordCount,
    RecordStartPosition = page * recordCount, // 0 based page number
    ExcludeMarketPlaceProducts = true,
    Filters = filters,
    Sort = sort,
    SearchOptions = searchOptions
});

Rate Limit Hit

If you hit the burst or daily rate limit, you can wait until you can make requests again. The ApiClient.Instance.BurstLimited and ApiClient.Instance.RateLimited properties are only set if you are rate limited.

Rather than hit the rate limit, you can check how many requests you have remaining with the ApiClient.Instance.RateLimitRemaining property. This does not indicate burst limits.

if (ApiClient.Instance.BurstLimited != null)
{
    Console.WriteLine($"Burst Rate limited. Resume in {ApiClient.Instance.BurstLimited.Reset}.");

    await Task.Delay((ApiClient.Instance.BurstLimited.Reset * 1000) + 2000);
}

if (ApiClient.Instance.RateLimited != null)
{
    Console.WriteLine($"Daily Rate limited. Resume after {ApiClient.Instance.RateLimited.ResetTime} GMT.");

    await Task.Delay((ApiClient.Instance.RateLimited.RetryAfter * 1000) + 60000);
}

Documentation for API Endpoints

See Docs for documentation on endpoints and models.