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Xbase++

DynamoDB - CreateTable

See more Amazon DynamoDB Examples

The CreateTable operation adds a new table to your account. In an AWS account, table names must be unique within each Region. That is, you can have two tables with same name if you create the tables in different Regions.

CreateTable is an asynchronous operation. Upon receiving a CreateTable request, DynamoDB immediately returns a response with a TableStatus of CREATING. After the table is created, DynamoDB sets the TableStatus to ACTIVE. You can perform read and write operations only on an ACTIVE table.

You can use the DescribeTable action to check the table status.

Chilkat Xbase++ Downloads

Xbase++
LOCAL nSuccess
LOCAL oRest
LOCAL oAuthAws
LOCAL nBTls
LOCAL nPort
LOCAL nBAutoReconnect
LOCAL oJson
LOCAL i
LOCAL j
LOCAL oSbRequestBody
LOCAL oSbResponseBody
LOCAL nRespStatusCode
LOCAL oJsonResponse
LOCAL cAttributeName
LOCAL cAttributeType
LOCAL cKeyType
LOCAL cIndexArn
LOCAL cIndexName
LOCAL nIndexSizeBytes
LOCAL nItemCount
LOCAL cProjectionProjectionType
LOCAL nCount_j
LOCAL cTableDescriptionTableArn
LOCAL cTableDescriptionCreationDateTime
LOCAL nTableDescriptionItemCount
LOCAL nTableDescriptionProvisionedThroughputNumberOfDecreasesToday
LOCAL nTableDescriptionProvisionedThroughputReadCapacityUnits
LOCAL nTableDescriptionProvisionedThroughputWriteCapacityUnits
LOCAL cTableDescriptionTableName
LOCAL nTableDescriptionTableSizeBytes
LOCAL cTableDescriptionTableStatus
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.CreateTable" \
//    -d '{
//      "AttributeDefinitions": [
//          {
//              "AttributeName": "ForumName",
//              "AttributeType": "S"
//          },
//          {
//              "AttributeName": "Subject",
//              "AttributeType": "S"
//          },
//          {
//              "AttributeName": "LastPostDateTime",
//              "AttributeType": "S"
//          }
//      ],
//      "TableName": "Thread",
//      "KeySchema": [
//          {
//              "AttributeName": "ForumName",
//              "KeyType": "HASH"
//          },
//          {
//              "AttributeName": "Subject",
//              "KeyType": "RANGE"
//          }
//      ],
//      "LocalSecondaryIndexes": [
//          {
//              "IndexName": "LastPostIndex",
//              "KeySchema": [
//                  {
//                      "AttributeName": "ForumName",
//                      "KeyType": "HASH"
//                  },
//                  {
//                      "AttributeName": "LastPostDateTime",
//                      "KeyType": "RANGE"
//                  }
//              ],
//              "Projection": {
//                  "ProjectionType": "KEYS_ONLY"
//              }
//          }
//      ],
//      "ProvisionedThroughput": {
//          "ReadCapacityUnits": 5,
//          "WriteCapacityUnits": 5
//      },
//      "Tags": [ 
//        { 
//           "Key": "Owner",
//           "Value": "BlueTeam"
//        }
//     ]
//  }'

//  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.

//  {
//    "AttributeDefinitions": [
//      {
//        "AttributeName": "ForumName",
//        "AttributeType": "S"
//      },
//      {
//        "AttributeName": "Subject",
//        "AttributeType": "S"
//      },
//      {
//        "AttributeName": "LastPostDateTime",
//        "AttributeType": "S"
//      }
//    ],
//    "TableName": "Thread",
//    "KeySchema": [
//      {
//        "AttributeName": "ForumName",
//        "KeyType": "HASH"
//      },
//      {
//        "AttributeName": "Subject",
//        "KeyType": "RANGE"
//      }
//    ],
//    "LocalSecondaryIndexes": [
//      {
//        "IndexName": "LastPostIndex",
//        "KeySchema": [
//          {
//            "AttributeName": "ForumName",
//            "KeyType": "HASH"
//          },
//          {
//            "AttributeName": "LastPostDateTime",
//            "KeyType": "RANGE"
//          }
//        ],
//        "Projection": {
//          "ProjectionType": "KEYS_ONLY"
//        }
//      }
//    ],
//    "ProvisionedThroughput": {
//      "ReadCapacityUnits": 5,
//      "WriteCapacityUnits": 5
//    },
//    "Tags": [
//      {
//        "Key": "Owner",
//        "Value": "BlueTeam"
//      }
//    ]
//  }

oJson := CreateObject("Chilkat.JsonObject")
i := 0
oJson:I := i
oJson:UpdateString("AttributeDefinitions[i].AttributeName", "ForumName")
oJson:UpdateString("AttributeDefinitions[i].AttributeType", "S")
i := i + 1
oJson:I := i
oJson:UpdateString("AttributeDefinitions[i].AttributeName", "Subject")
oJson:UpdateString("AttributeDefinitions[i].AttributeType", "S")
i := i + 1
oJson:I := i
oJson:UpdateString("AttributeDefinitions[i].AttributeName", "LastPostDateTime")
oJson:UpdateString("AttributeDefinitions[i].AttributeType", "S")
oJson:UpdateString("TableName", "Thread")
i := 0
oJson:I := i
oJson:UpdateString("KeySchema[i].AttributeName", "ForumName")
oJson:UpdateString("KeySchema[i].KeyType", "HASH")
i := i + 1
oJson:I := i
oJson:UpdateString("KeySchema[i].AttributeName", "Subject")
oJson:UpdateString("KeySchema[i].KeyType", "RANGE")

i := 0
oJson:I := i
j := 0
oJson:J := j
oJson:UpdateString("LocalSecondaryIndexes[i].IndexName", "LastPostIndex")
oJson:UpdateString("LocalSecondaryIndexes[i].KeySchema[j].AttributeName", "ForumName")
oJson:UpdateString("LocalSecondaryIndexes[i].KeySchema[j].KeyType", "HASH")
j := j + 1
oJson:J := j
oJson:UpdateString("LocalSecondaryIndexes[i].KeySchema[j].AttributeName", "LastPostDateTime")
oJson:UpdateString("LocalSecondaryIndexes[i].KeySchema[j].KeyType", "RANGE")
oJson:UpdateString("LocalSecondaryIndexes[i].Projection.ProjectionType", "KEYS_ONLY")
oJson:UpdateInt("ProvisionedThroughput.ReadCapacityUnits", 5)
oJson:UpdateInt("ProvisionedThroughput.WriteCapacityUnits", 5)
oJson:UpdateString("Tags[0].Key", "Owner")
oJson:UpdateString("Tags[0].Value", "BlueTeam")

oRest:AddHeader("Content-Type", "application/x-amz-json-1.0")
oRest:AddHeader("X-Amz-Target", "DynamoDB_20120810.CreateTable")
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 Response:

//   {
//      "TableDescription": {
//          "TableArn": "arn:aws:dynamodb:us-west-2:123456789012:table/Thread",
//          "AttributeDefinitions": [
//              {
//                  "AttributeName": "ForumName",
//                  "AttributeType": "S"
//              },
//              {
//                  "AttributeName": "LastPostDateTime",
//                  "AttributeType": "S"
//              },
//              {
//                  "AttributeName": "Subject",
//                  "AttributeType": "S"
//              }
//          ],
//          "CreationDateTime": 1.36372808007E9,
//          "ItemCount": 0,
//          "KeySchema": [
//              {
//                  "AttributeName": "ForumName",
//                  "KeyType": "HASH"
//              },
//              {
//                  "AttributeName": "Subject",
//                  "KeyType": "RANGE"
//              }
//          ],
//          "LocalSecondaryIndexes": [
//              {
//                  "IndexArn": "arn:aws:dynamodb:us-west-2:123456789012:table/Thread/index/LastPostIndex",
//                  "IndexName": "LastPostIndex",
//                  "IndexSizeBytes": 0,
//                  "ItemCount": 0,
//                  "KeySchema": [
//                      {
//                          "AttributeName": "ForumName",
//                          "KeyType": "HASH"
//                      },
//                      {
//                          "AttributeName": "LastPostDateTime",
//                          "KeyType": "RANGE"
//                      }
//                  ],
//                  "Projection": {
//                      "ProjectionType": "KEYS_ONLY"
//                  }
//              }
//          ],
//          "ProvisionedThroughput": {
//              "NumberOfDecreasesToday": 0,
//              "ReadCapacityUnits": 5,
//              "WriteCapacityUnits": 5
//          },
//          "TableName": "Thread",
//          "TableSizeBytes": 0,
//          "TableStatus": "CREATING"
//      }
//  }

//  Sample code for parsing the JSON response...
//  Use the following online tool to generate parsing code from sample JSON:
//  Generate Parsing Code from JSON

cTableDescriptionTableArn := oJsonResponse:StringOf("TableDescription.TableArn")
cTableDescriptionCreationDateTime := oJsonResponse:StringOf("TableDescription.CreationDateTime")
nTableDescriptionItemCount := oJsonResponse:IntOf("TableDescription.ItemCount")
nTableDescriptionProvisionedThroughputNumberOfDecreasesToday := oJsonResponse:IntOf("TableDescription.ProvisionedThroughput.NumberOfDecreasesToday")
nTableDescriptionProvisionedThroughputReadCapacityUnits := oJsonResponse:IntOf("TableDescription.ProvisionedThroughput.ReadCapacityUnits")
nTableDescriptionProvisionedThroughputWriteCapacityUnits := oJsonResponse:IntOf("TableDescription.ProvisionedThroughput.WriteCapacityUnits")
cTableDescriptionTableName := oJsonResponse:StringOf("TableDescription.TableName")
nTableDescriptionTableSizeBytes := oJsonResponse:IntOf("TableDescription.TableSizeBytes")
cTableDescriptionTableStatus := oJsonResponse:StringOf("TableDescription.TableStatus")
i := 0
nCount_i := oJsonResponse:SizeOfArray("TableDescription.AttributeDefinitions")
DO WHILE i < nCount_i
    oJsonResponse:I := i
    cAttributeName := oJsonResponse:StringOf("TableDescription.AttributeDefinitions[i].AttributeName")
    cAttributeType := oJsonResponse:StringOf("TableDescription.AttributeDefinitions[i].AttributeType")
    i := i + 1
ENDDO
i := 0
nCount_i := oJsonResponse:SizeOfArray("TableDescription.KeySchema")
DO WHILE i < nCount_i
    oJsonResponse:I := i
    cAttributeName := oJsonResponse:StringOf("TableDescription.KeySchema[i].AttributeName")
    cKeyType := oJsonResponse:StringOf("TableDescription.KeySchema[i].KeyType")
    i := i + 1
ENDDO
i := 0
nCount_i := oJsonResponse:SizeOfArray("TableDescription.LocalSecondaryIndexes")
DO WHILE i < nCount_i
    oJsonResponse:I := i
    cIndexArn := oJsonResponse:StringOf("TableDescription.LocalSecondaryIndexes[i].IndexArn")
    cIndexName := oJsonResponse:StringOf("TableDescription.LocalSecondaryIndexes[i].IndexName")
    nIndexSizeBytes := oJsonResponse:IntOf("TableDescription.LocalSecondaryIndexes[i].IndexSizeBytes")
    nItemCount := oJsonResponse:IntOf("TableDescription.LocalSecondaryIndexes[i].ItemCount")
    cProjectionProjectionType := oJsonResponse:StringOf("TableDescription.LocalSecondaryIndexes[i].Projection.ProjectionType")
    j := 0
    nCount_j := oJsonResponse:SizeOfArray("TableDescription.LocalSecondaryIndexes[i].KeySchema")
    DO WHILE j < nCount_j
        oJsonResponse:J := j
        cAttributeName := oJsonResponse:StringOf("TableDescription.LocalSecondaryIndexes[i].KeySchema[j].AttributeName")
        cKeyType := oJsonResponse:StringOf("TableDescription.LocalSecondaryIndexes[i].KeySchema[j].KeyType")
        j := j + 1
    ENDDO
    i := i + 1
ENDDO

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