Notes

To retrieve the required details using the Intuit QuickBooks API in C#, you can use the `QueryService` class to query various entities such as `Customer`, `Item`, `PurchaseOrder`, etc. The QuickBooks API is RESTful and allows you to query and retrieve data using LINQ-like syntax.

Here’s a step-by-step guide on how to get the shipping address, billing address, manufacturer name, manufacturer ID, manufacturer product ID, distributor ID, and distributor product ID:

### 1. Set up the QuickBooks API Client
Before making API calls, ensure that you have set up the QuickBooks API client and authenticated your application.

```csharp
using Intuit.Ipp.Core;
using Intuit.Ipp.Data;
using Intuit.Ipp.QueryFilter;
using Intuit.Ipp.Security;
using Intuit.Ipp.Services;

public class QuickBooksAPIClient
{
private readonly ServiceContext _serviceContext;
private readonly DataService _dataService;

public QuickBooksAPIClient(string accessToken, string accessTokenSecret, string consumerKey, string consumerSecret, string realmId)
{
// Set up OAuth tokens
var oauthValidator = new OAuthRequestValidator(accessToken, accessTokenSecret, consumerKey, consumerSecret);
_serviceContext = new ServiceContext(realmId, IntuitServicesType.QBO, oauthValidator);

// Initialize the DataService
_dataService = new DataService(_serviceContext);
}

// Method to retrieve shipping and billing address, manufacturer details
public void GetDetails()
{
var queryService = new QueryService<Customer>(_serviceContext);

// Fetch customer details including billing and shipping addresses
var customer = queryService.ExecuteIdsQuery("SELECT * FROM Customer").FirstOrDefault();

if (customer != null)
{
// Get Shipping Address
var shippingAddress = customer.ShipAddr;

// Get Billing Address
var billingAddress = customer.BillAddr;
}

// Fetch item details for manufacturer and distributor information
var itemQueryService = new QueryService<Item>(_serviceContext);
var items = itemQueryService.ExecuteIdsQuery("SELECT * FROM Item");

foreach (var item in items)
{
// Manufacturer and Distributor details
var manufacturerName = item.ManufacturerPartNo;
var manufacturerProductId = item.Id;
var distributorProductId = item.Id;
}
}
}
```

### 2. Implement the Main Logic
You can then call the above methods in your main program.

```csharp
public class Program
{
public static void Main(string[] args)
{
string accessToken = "your_access_token";
string accessTokenSecret = "your_access_token_secret";
string consumerKey = "your_consumer_key";
string consumerSecret = "your_consumer_secret";
string realmId = "your_realm_id";

var quickBooksAPIClient = new QuickBooksAPIClient(accessToken, accessTokenSecret, consumerKey, consumerSecret, realmId);
quickBooksAPIClient.GetDetails();
}
}
```

### 3. Explanation
- **Customer**: The `Customer` entity will provide you with the billing and shipping addresses.
- **Item**: The `Item` entity will help you get details about the manufacturer and distributor. `ManufacturerPartNo` can give you the manufacturer's part number, while the `Id` field can be used for product IDs.

### Note:
- Ensure that you have the necessary permissions to access the data.
- The exact fields might differ based on how your QuickBooks setup is configured.

### 4. Additional Queries
If you need specific fields, you can modify the query strings like `SELECT Id, ShipAddr, BillAddr FROM Customer` to limit the data you retrieve.

This is a basic guide. Depending on your specific requirements, you may need to expand or modify the code accordingly.