Xbase++

DynamoDB - ListTables

See more Amazon DynamoDB Examples

Returns an array of table names associated with the current account and endpoint. The output from ListTables is paginated, with each page returning a maximum of 100 table names. Xbase++

LOCAL nSuccess
LOCAL oRest
LOCAL oAuthAws
LOCAL nBTls
LOCAL nPort
LOCAL nBAutoReconnect
LOCAL oJson
LOCAL oSbRequestBody
LOCAL oSbResponseBody
LOCAL nRespStatusCode
LOCAL oJsonResponse
LOCAL cStrVal
LOCAL cLastEvaluatedTableName
LOCAL i
LOCAL nCount_i

nSuccess := 0

oRest := CreateObject("Chilkat.Rest")

//  Implements the following CURL command:

//  curl -X POST https://dynamodb.us-west-2.amazonaws.com/ \
//    -H "Accept-Encoding: identity" \
//    -H "Content-Type: application/x-amz-json-1.0" \
//    -H "Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<Headers>, Signature=<Signature>" \
//    -H "X-Amz-Date: <Date>" \
//    -H "X-Amz-Target: DynamoDB_20120810.ListTables" \
//    -d '{
//      "Limit": 100
//  }'

//  Use the following online tool to generate REST code from a CURL command
//  Convert a cURL Command to REST Source Code

oAuthAws := CreateObject("Chilkat.AuthAws")
oAuthAws:AccessKey := "AWS_ACCESS_KEY"
oAuthAws: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.)
oAuthAws:Region := "us-west-2"
oAuthAws:ServiceName := "dynamodb"

//  SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
oRest:SetAuthAws(oAuthAws)

//  URL: https://dynamodb.us-west-2.amazonaws.com/
nBTls := 1
nPort := 443
nBAutoReconnect := 1
//  Don't forget to change the region domain (us-west-2.amazonaws.com) to your particular region.
nSuccess := oRest:Connect("dynamodb.us-west-2.amazonaws.com", nPort, nBTls, nBAutoReconnect)
IF (nSuccess != 1)
    ? "ConnectFailReason: " + Str(oRest:ConnectFailReason)
    ? oRest:LastErrorText
    oRest:destroy()
    oAuthAws:destroy()
    RETURN
ENDIF

//  Note: The above code does not need to be repeatedly called for each REST request.
//  The rest object can be setup once, and then many requests can be sent.  Chilkat will automatically
//  reconnect within a FullRequest* method as needed.  It is only the very first connection that is explicitly
//  made via the Connect method.

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

//  The following JSON is sent in the request body.

//  {
//    "Limit": 100
//  }

oJson := CreateObject("Chilkat.JsonObject")
oJson:UpdateInt("Limit", 100)

oRest:AddHeader("Content-Type", "application/x-amz-json-1.0")
oRest:AddHeader("X-Amz-Target", "DynamoDB_20120810.ListTables")
oRest:AddHeader("Accept-Encoding", "identity")

oSbRequestBody := CreateObject("Chilkat.StringBuilder")
oJson:EmitSb(oSbRequestBody)
oSbResponseBody := CreateObject("Chilkat.StringBuilder")
nSuccess := oRest:FullRequestSb("POST", "/", oSbRequestBody, oSbResponseBody)
IF (nSuccess != 1)
    ? oRest:LastErrorText
    oRest:destroy()
    oAuthAws:destroy()
    oJson:destroy()
    oSbRequestBody:destroy()
    oSbResponseBody:destroy()
    RETURN
ENDIF

nRespStatusCode := oRest:ResponseStatusCode
? "response status code = " + Str(nRespStatusCode)

IF (nRespStatusCode >= 400)
    ? "Response Status Code = " + Str(nRespStatusCode)
    ? "Response Header:"
    ? oRest:ResponseHeader
    ? "Response Body:"
    ? oSbResponseBody:GetAsString()
    oRest:destroy()
    oAuthAws:destroy()
    oJson:destroy()
    oSbRequestBody:destroy()
    oSbResponseBody:destroy()
    RETURN
ENDIF

oJsonResponse := CreateObject("Chilkat.JsonObject")
oJsonResponse:LoadSb(oSbResponseBody)

oJsonResponse:EmitCompact := 0
? oJsonResponse:Emit()

//  Sample JSON response:

//  {
//      "LastEvaluatedTableName": "Thread",
//      "TableNames": ["Forum","Reply","Thread"]
//  }

cLastEvaluatedTableName := oJsonResponse:StringOf("LastEvaluatedTableName")
i := 0
nCount_i := oJsonResponse:SizeOfArray("TableNames")
DO WHILE i < nCount_i
    oJsonResponse:I := i
    cStrVal := oJsonResponse:StringOf("TableNames[i]")
    i := i + 1
ENDDO

oRest:destroy()
oAuthAws:destroy()
oJson:destroy()
oSbRequestBody:destroy()
oSbResponseBody:destroy()
oJsonResponse:destroy()