Datasnap.DSService.TDSJSONService
Delphi
TDSJSONService = class(TDSService)
C++
class PASCALIMPLEMENTATION TDSJSONService : public TDSService
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| class | public | Datasnap.DSService.pas Datasnap.DSService.hpp |
Datasnap.DSService | Datasnap.DSService |
Description
Implements the service for the JSON HTTP request.
JSON HTTP requests are POST HTTP requests with JSON content, such as:
{
[
"execute": {
"MethodClass.MethodName": [
inputParameter1,
inputParameter2
]
}
],
// …
}
TDSJSONService raises an exception if it cannot parse the JSON content.
TDSJSONService generates a result JSON property called "result" for each method, which contains a list with the values of the output and return parameters of the method execution. For example:
{
"result": [ parameterValue1, parameterValue2, /* …, */ returnValue],
"result": [ parameterValue1, parameterValue2, /* …, */ returnValue],
// …
}
If a method raises an exception, the response contains an "error" property for that method instead of a "result" property. The "error" property contains the error message as value. For example:
"error": "Error message."