Chilkat Online Tools

StartQueryExecution VB6 Example

Athena

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

Dim rest As New ChilkatRest
Dim success As Long

Dim authAws As New ChilkatAuthAws
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.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.)
authAws.Region = "us-west-2"
authAws.ServiceName = "athena"
' SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
success = rest.SetAuthAws(authAws)

' URL: https://athena.us-west-2.amazonaws.com/
' Use the same region as specified above.
success = rest.Connect("athena.us-west-2.amazonaws.com",443,1,1)
If (success <> 1) Then
    Debug.Print "ConnectFailReason: " & rest.ConnectFailReason
    Debug.Print rest.LastErrorText
    Exit Sub
End If

' The following code creates the JSON request body.
' The JSON created by this code is shown below.

' Use this online tool to generate code from sample JSON:
' Generate Code to Create JSON

Dim json As New ChilkatJsonObject
success = json.UpdateString("ClientRequestToken","string")
success = json.UpdateString("QueryExecutionContext.Catalog","string")
success = json.UpdateString("QueryExecutionContext.Database","string")
success = json.UpdateString("QueryString","string")
success = json.UpdateString("ResultConfiguration.AclConfiguration.S3AclOption","string")
success = json.UpdateString("ResultConfiguration.EncryptionConfiguration.EncryptionOption","string")
success = json.UpdateString("ResultConfiguration.EncryptionConfiguration.KmsKey","string")
success = json.UpdateString("ResultConfiguration.ExpectedBucketOwner","string")
success = json.UpdateString("ResultConfiguration.OutputLocation","string")
success = json.UpdateString("WorkGroup","string")

' The JSON request body created by the above code:

' {
'   "ClientRequestToken": "string",
'   "QueryExecutionContext": {
'     "Catalog": "string",
'     "Database": "string"
'   },
'   "QueryString": "string",
'   "ResultConfiguration": {
'     "AclConfiguration": {
'       "S3AclOption": "string"
'     },
'     "EncryptionConfiguration": {
'       "EncryptionOption": "string",
'       "KmsKey": "string"
'     },
'     "ExpectedBucketOwner": "string",
'     "OutputLocation": "string"
'   },
'   "WorkGroup": "string"
' }

success = rest.AddHeader("Content-Type","application/x-amz-json-1.1")
success = rest.AddHeader("X-Amz-Target","AmazonAthena.StartQueryExecution")

Dim sbRequestBody As New ChilkatStringBuilder
success = json.EmitSb(sbRequestBody)
Dim sbResponseBody As New ChilkatStringBuilder
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody)
If (success <> 1) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

Dim respStatusCode As Long
respStatusCode = rest.ResponseStatusCode
Debug.Print "response status code = " & respStatusCode
If (respStatusCode <> 200) Then
    Debug.Print "Response Header:"
    Debug.Print rest.ResponseHeader
    Debug.Print "Response Body:"
    Debug.Print sbResponseBody.GetAsString()
    Exit Sub
End If

Dim jResp As New ChilkatJsonObject
success = jResp.LoadSb(sbResponseBody)

' 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

Dim QueryExecutionId As String
QueryExecutionId = jResp.StringOf("QueryExecutionId")

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

' {
'   "QueryExecutionId": "string"
' }