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billrei12-Amethyst
12-Amethyst
June 27, 2017

Example of How to Create a Remote Service that Takes an InfoTable as a Parameter Using the C SDK

  • June 27, 2017
  • 1 reply
  • 5118 views

/* Define a DataShape used in an InfoTable Parameter for this service call */
twDataShape* sampleInfoTableAsParameterDs = twDataShape_Create(twDataShapeEntry_Create("ColumnA",NO_DESCRIPTION,TW_STRING));

twDataShape_AddEntry(sampleInfoTableAsParameterDs,twDataShapeEntry_Create("ColumnB",NO_DESCRIPTION,TW_NUMBER));

twDataShape_AddEntry(sampleInfoTableAsParameterDs,twDataShapeEntry_Create("ColumnC",NO_DESCRIPTION,TW_BOOLEAN));

twDataShape_SetName(sampleInfoTableAsParameterDs,"SampleInfoTableAsParameterDataShape");

 

   /* Define Input Parameter that is an InfoTable of Shape SampleInfoTableAsParameterDataShape */
twDataShapeEntry* infoTableDsEntry = twDataShapeEntry_Create("itParam",NULL,TW_INFOTABLE);

twDataShapeEntry_AddAspect(infoTableDsEntry, "dataShape", twPrimitive_CreateFromString("SampleInfoTableAsParameterDataShape", TRUE));

   twDataShape* inputParametersDefinitionDs = twDataShape_Create(infoTableDsEntry);

 

/* Register remote function */
twApi_RegisterService(TW_THING, SERVICE_INTEGRATION_THINGNAME, "testMultiRowInfotable", NO_DESCRIPTION,

  inputParametersDefinitionDs, TW_NOTHING, NULL, PlatformCallsServiceWithMultiRowInfoTableServiceImpl, NULL);

/* Note that you will have to manually create the datashape in ThingWorx before attempting to add this remote service to your Thing. */

1 reply

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billrei12-AmethystAuthor
12-Amethyst
June 27, 2017

This came up as the result of a customer question. It is easy to specify that a generic InfoTable is the type of a parameter. What is not so straightforward is knowing that you have to create and name the datashape for that InfoTable and then create an aspect called "dataShape" on the parameter list DataShape entry to assign that datashape to the InfoTable parameter.

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