Entity & attribute metadata using c#

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 Below example to get Attribute Metadata using C# for a specific entity.

/*Connection establishing using ClientID & Client Secret*/

public static void GetConnection()

        {

            try

            {

                string connectionString = "AuthType=ClientSecret; url=REPLACE WITH ORANIZATION URL; ClientId=REPLACE WITH YOUR CLIENT ID; ClientSecret=REPLACE WITH YOUR CLIENT SECRET";

                crmServiceClient = new CrmServiceClient(connectionString); //Connecting to the D-365 CDS instance


                if (crmServiceClient != null && crmServiceClient.IsReady)

                {

                    Console.WriteLine("\nConnection successful.");

                }

                else

                {

                    Console.WriteLine("\nPlease make sure the Connection String is correct.");

                }

            }

            catch (Exception ex)

            {

                throw new Exception(ex.Message);

            }

        }


private static void GetEntityMetadata(string entityName)

        {

            RetrieveEntityRequest req = new RetrieveEntityRequest()

            {

                EntityFilters = EntityFilters.Attributes,

                LogicalName = entityName,

                RetrieveAsIfPublished = true

            };


            RetrieveEntityResponse res = (RetrieveEntityResponse)organizationService.Execute(req);

            foreach (var item in res.Results)

            {

                var attributeCollection = (item.Value as EntityMetadata).Attributes;

                foreach (var attribute in attributeCollection)

                {

                    var displayName = (attribute.DisplayName != null && attribute.DisplayName.UserLocalizedLabel != null) ? attribute.DisplayName.UserLocalizedLabel.Label : string.Empty;

                    string lookupAttributeInfo = string.Empty;

                    if (displayName == string.Empty)

                    {

                        displayName = "*********";

                    }

                    if (attribute.AttributeType.ToString() == "Lookup")

                    {

                        lookupAttributeInfo = (attribute as LookupAttributeMetadata).Targets[0];

                    }

                    if (lookupAttributeInfo != string.Empty)

                    {

                        Console.WriteLine($"Display Name:{displayName} -->LogicalName:{attribute.LogicalName} -->Target Entity Name:{lookupAttributeInfo}-->IsPrimaryName:{attribute.IsPrimaryName}");

                    }

                    else

                    {

                        Console.WriteLine($"Display Name:{displayName} -->LogicalName:{attribute.LogicalName} -->IsPrimaryName:{attribute.IsPrimaryName}");

                    }

                }

            }


        }

static void Main(string[] args)

        {

            GetConnection();

            GetEntityMetadata("account");

        }

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