Chilkat Online Tools

ListDatasets Foxpro Example

AWS IoT Analytics

LOCAL loRest
LOCAL lnSuccess
LOCAL loAuthAws
LOCAL loSbResponseBody
LOCAL lnRespStatusCode
LOCAL loJResp
LOCAL lnCreationTime
LOCAL lcDatasetName
LOCAL lnLastUpdateTime
LOCAL lcStatus
LOCAL j
LOCAL lnCount_j
LOCAL lcActionName
LOCAL lcActionType
LOCAL lcName
LOCAL lcExpression
LOCAL lcNextToken
LOCAL i
LOCAL lnCount_i

* This example requires the Chilkat API to have been previously unlocked.
* See Global Unlock Sample for sample code.

loRest = CreateObject('Chilkat_9_5_0.Rest')

loAuthAws = CreateObject('Chilkat_9_5_0.AuthAws')
loAuthAws.AccessKey = "AWS_ACCESS_KEY"
loAuthAws.SecretKey = "AWS_SECRET_KEY"

* Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
loAuthAws.Region = "us-west-2"
loAuthAws.ServiceName = "iotanalytics"
* SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
loRest.SetAuthAws(loAuthAws)

* URL: https://iotanalytics.us-west-2.amazonaws.com/
* Use the same region as specified above.
lnSuccess = loRest.Connect("iotanalytics.us-west-2.amazonaws.com",443,1,1)
IF (lnSuccess <> 1) THEN
    ? "ConnectFailReason: " + STR(loRest.ConnectFailReason)
    ? loRest.LastErrorText
    RELEASE loRest
    RELEASE loAuthAws
    CANCEL
ENDIF

loRest.AddHeader("Content-Type","application/x-amz-json-1.1")
loRest.AddHeader("X-Amz-Target","ListDatasets")

loSbResponseBody = CreateObject('Chilkat_9_5_0.StringBuilder')
lnSuccess = loRest.FullRequestNoBodySb("GET","/datasets",loSbResponseBody)
IF (lnSuccess <> 1) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    RELEASE loAuthAws
    RELEASE loSbResponseBody
    CANCEL
ENDIF

lnRespStatusCode = loRest.ResponseStatusCode
? "response status code = " + STR(lnRespStatusCode)
IF (lnRespStatusCode <> 200) THEN
    ? "Response Header:"
    ? loRest.ResponseHeader
    ? "Response Body:"
    ? loSbResponseBody.GetAsString()
    RELEASE loRest
    RELEASE loAuthAws
    RELEASE loSbResponseBody
    CANCEL
ENDIF

loJResp = CreateObject('Chilkat_9_5_0.JsonObject')
loJResp.LoadSb(loSbResponseBody)

* The following code parses the JSON response.
* A sample JSON response is shown below the sample code.

* Use this online tool to generate parsing code from sample JSON:
* Generate Parsing Code from JSON

lcNextToken = loJResp.StringOf("nextToken")
i = 0
lnCount_i = loJResp.SizeOfArray("datasetSummaries")
DO WHILE i < lnCount_i
    loJResp.I = i
    lnCreationTime = loJResp.IntOf("datasetSummaries[i].creationTime")
    lcDatasetName = loJResp.StringOf("datasetSummaries[i].datasetName")
    lnLastUpdateTime = loJResp.IntOf("datasetSummaries[i].lastUpdateTime")
    lcStatus = loJResp.StringOf("datasetSummaries[i].status")
    j = 0
    lnCount_j = loJResp.SizeOfArray("datasetSummaries[i].actions")
    DO WHILE j < lnCount_j
        loJResp.J = j
        lcActionName = loJResp.StringOf("datasetSummaries[i].actions[j].actionName")
        lcActionType = loJResp.StringOf("datasetSummaries[i].actions[j].actionType")
        j = j + 1
    ENDDO
    j = 0
    lnCount_j = loJResp.SizeOfArray("datasetSummaries[i].triggers")
    DO WHILE j < lnCount_j
        loJResp.J = j
        lcName = loJResp.StringOf("datasetSummaries[i].triggers[j].dataset.name")
        lcExpression = loJResp.StringOf("datasetSummaries[i].triggers[j].schedule.expression")
        j = j + 1
    ENDDO
    i = i + 1
ENDDO

* A sample JSON response body parsed by the above code:

* {
*   "datasetSummaries": [
*     {
*       "actions": [
*         {
*           "actionName": "string",
*           "actionType": "string"
*         }
*       ],
*       "creationTime": number,
*       "datasetName": "string",
*       "lastUpdateTime": number,
*       "status": "string",
*       "triggers": [
*         {
*           "dataset": {
*             "name": "string"
*           },
*           "schedule": {
*             "expression": "string"
*           }
*         }
*       ]
*     }
*   ],
*   "nextToken": "string"
* }

RELEASE loRest
RELEASE loAuthAws
RELEASE loSbResponseBody
RELEASE loJResp