Editar

Partilhar via

API query type

  • Artigo

Queries of the type API are used to generate web service endpoints and this type of query can't be used to display data in the user interface. A query of the API type can be used to join data from different data sources. The data can only be viewed. When creating this query type, you must specify a number of properties that provide information for the web service endpoint. Use the snippet tquery - Query of type API to get the right template and the list of these properties automatically filled in.

Tip

Use Ctrl+Space to trigger IntelliSense and get assistance on code completion, parameter info, quick info, and member lists. For more information about snippets, see Syntax and snippets.

Note

Extending API pages and queries isn't currently possible in Business Central.

Example of the API query type

The following query example publishes an API available at: ../contoso/app1/v1.0/companies({id})/customerSales. The APIVersion can be specified as one version, or a list of versions, if the API is supported through multiple versions.

query 20000 "APIV1 - Customer Sales"
{
    QueryType = API;
    APIPublisher = 'contoso';
    APIGroup = 'app1';
    APIVersion = 'v1.0';
    Caption = 'customerSales', Locked = true;
    EntityName = 'customerSale';
    EntitySetName = 'customerSales';

    elements
    {
        dataitem(QueryElement1; Customer)
        {
            column(customerId; Id)
            {
                Caption = 'Id', Locked = true;
            }
            column(customerNumber; "No.")
            {
                Caption = 'No', Locked = true;
            }
            column(name; Name)
            {
                Caption = 'Name', Locked = true;
            }
            dataitem(QueryElement10; "Cust. Ledger Entry")
            {
                DataItemLink = "Customer No." = QueryElement1."No.";
                SqlJoinType = LeftOuterJoin;
                DataItemTableFilter = "Document Type" = FILTER (Invoice | "Credit Memo");
                column(totalSalesAmount; "Sales (LCY)")
                {
                    Caption = 'TotalSalesAmount', Locked = true;
                    Method = Sum;
                }
                filter(dateFilter; "Posting Date")
                {
                    Caption = 'DateFilter', Locked = true;
                }
            }
        }
    }
}

AL development environment
API page Type
APIPublisher property
APIGroup property
APIVersion property
EntityName property
EntitySetName property
Query object
Developing extensions