///Initialize the authentication client
AuthenticationClient auth = new AuthenticationClient();

//Pass in the login information
await auth.UsernamePasswordAsync("your-client-id", "your-client-secret", "your-username", "your-password", "token-endpoint-url");

//the AuthenticationClient object will then contain the instance URL and access token to be used in each of the API calls
ForceClient client = new ForceClient(auth.AccessInfo.InstanceUrl, auth.ApiVersion, auth.AccessInfo.AccessToken);

//Retrieve an object by Id
SfAccount acct = await client.GetObjectById<SfAccount>(SfAccount.SObjectTypeName, "001i000002C8QTI");
//Modify the record and update
acct.Description = "Updated Description";
await client.UpdateRecord<SfAccount>(SfAccount.SObjectTypeName, acct.Id, acct);
//Delete the record
await client.DeleteRecord(SfAccount.SObjectTypeName, acct.Id);

//Get the results of a SOQL query
List<SfCase> cases = await client.Query<SfCase>("SELECT Id,CaseNumber,Account.Name,Contact.Name FROM Case");

List<SfCase> cases = await client.Query<SfCase>("SELECT Id,CaseNumber,Account.Name,Contact.Name FROM Case");
SfCase firstCase = cases[0];
string caseNumber = firstCase.CaseNumber;
string caseAccountName = firstCase.Account.Name;
string caseContactName = firstCase.Contact.Name;

// First create the async enumerable. At this point, no query has been executed.
// batchSize can be omitted to use the default (usually 2000), or given a custom value between 200 and 2000.
IAsyncEnumerable<SfContact> contactsEnumerable = client.QueryAsync<SfContact>("SELECT Id, Name FROM Contact ", batchSize: 200);

// Get the enumerator, in a using block for proper disposal
await using (IAsyncEnumerator<SfContact> contactsEnumerator = contactsEnumerable.GetAsyncEnumerator())
{
    // MoveNext() will execute the query and get the first batch of results.
    // Once the inital result batch has been exhausted, the remaining batches, if any, will be retrieved.
    while (await contactsEnumerator.MoveNextAsync())
    {
        SfContact contact = contactsEnumerator.Current;
        // process your results
    }
}