JsonArrayGetObjectElement Function

Action

Retrieves the value of a specified element from a JSON array. If the array element does not exist in the JSON array or the array element does not contain a JSON object value nothing happens.

Include file

Json.bdh

Syntax

JsonArrayGetObjectElement( in handle : number,
                           in index  : number,
                           out value : number ): boolean;

Parameter	Description
handle	Valid handle to a JSON array
index	The index position in the JSON array. Lower bound is zero (0).
value	Parameter that contains the value of the specified element. The value is a handle to a JSON object

Return value

true if element successfully found
false otherwise

Example

transaction TMain
var
  jsonText                             : string;
  jsonArray, i, elementValue, objectId : number;
begin
  WebParseDataBound(jsonText);
  WebPageUrl("http://mycompany.com/api/jsondata");
  jsonArray := JsonParse(jsonText);
  
  for i := 0 to (JsonGetArrayLength(jsonArray) - 1) do
    JsonArrayGetObjectElement(jsonArray, i, elementValue);
	JsonGetNumberProperty(elementValue, "Id", objectId);
	Print("Object at index " + string(i) + " has the id " + string(objectId));
  end;

  JsonFree(jsonArray);
end TMain;