(Visual Basic 6.0) DynamoDB - CreateTable

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.

For more information, see https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_CreateTable.html

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim rest As New ChilkatRest
Dim success As Long

' 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

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 = "dynamodb"
' SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
success = rest.SetAuthAws(authAws)

' URL: https://dynamodb.us-west-2.amazonaws.com/
Dim bTls As Long
bTls = 1
Dim port As Long
port = 443
Dim bAutoReconnect As Long
bAutoReconnect = 1
' Don't forget to change the region domain (us-west-2.amazonaws.com) to your particular region.
success = rest.Connect("dynamodb.us-west-2.amazonaws.com",port,bTls,bAutoReconnect)
If (success <> 1) Then
    Debug.Print "ConnectFailReason: " & rest.ConnectFailReason
    Debug.Print rest.LastErrorText
    Exit Sub
End If

' 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"
'     }
'   ]
' }

Dim json As New ChilkatJsonObject
Dim i As Long
i = 0
json.I = i
success = json.UpdateString("AttributeDefinitions[i].AttributeName","ForumName")
success = json.UpdateString("AttributeDefinitions[i].AttributeType","S")
i = i + 1
json.I = i
success = json.UpdateString("AttributeDefinitions[i].AttributeName","Subject")
success = json.UpdateString("AttributeDefinitions[i].AttributeType","S")
i = i + 1
json.I = i
success = json.UpdateString("AttributeDefinitions[i].AttributeName","LastPostDateTime")
success = json.UpdateString("AttributeDefinitions[i].AttributeType","S")
success = json.UpdateString("TableName","Thread")
i = 0
json.I = i
success = json.UpdateString("KeySchema[i].AttributeName","ForumName")
success = json.UpdateString("KeySchema[i].KeyType","HASH")
i = i + 1
json.I = i
success = json.UpdateString("KeySchema[i].AttributeName","Subject")
success = json.UpdateString("KeySchema[i].KeyType","RANGE")

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

success = rest.AddHeader("Content-Type","application/x-amz-json-1.0")
success = rest.AddHeader("X-Amz-Target","DynamoDB_20120810.CreateTable")
success = rest.AddHeader("Accept-Encoding","identity")

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 >= 400) Then
    Debug.Print "Response Status Code = " & respStatusCode
    Debug.Print "Response Header:"
    Debug.Print rest.ResponseHeader
    Debug.Print "Response Body:"
    Debug.Print sbResponseBody.GetAsString()
    Exit Sub
End If

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

jsonResponse.EmitCompact = 0
Debug.Print jsonResponse.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

Dim AttributeName As String
Dim AttributeType As String
Dim KeyType As String
Dim IndexArn As String
Dim IndexName As String
Dim IndexSizeBytes As Long
Dim ItemCount As Long
Dim ProjectionProjectionType As String
Dim count_j As Long

Dim TableDescriptionTableArn As String
TableDescriptionTableArn = jsonResponse.StringOf("TableDescription.TableArn")
Dim TableDescriptionCreationDateTime As String
TableDescriptionCreationDateTime = jsonResponse.StringOf("TableDescription.CreationDateTime")
Dim TableDescriptionItemCount As Long
TableDescriptionItemCount = jsonResponse.IntOf("TableDescription.ItemCount")
Dim TableDescriptionProvisionedThroughputNumberOfDecreasesToday As Long
TableDescriptionProvisionedThroughputNumberOfDecreasesToday = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.NumberOfDecreasesToday")
Dim TableDescriptionProvisionedThroughputReadCapacityUnits As Long
TableDescriptionProvisionedThroughputReadCapacityUnits = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.ReadCapacityUnits")
Dim TableDescriptionProvisionedThroughputWriteCapacityUnits As Long
TableDescriptionProvisionedThroughputWriteCapacityUnits = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.WriteCapacityUnits")
Dim TableDescriptionTableName As String
TableDescriptionTableName = jsonResponse.StringOf("TableDescription.TableName")
Dim TableDescriptionTableSizeBytes As Long
TableDescriptionTableSizeBytes = jsonResponse.IntOf("TableDescription.TableSizeBytes")
Dim TableDescriptionTableStatus As String
TableDescriptionTableStatus = jsonResponse.StringOf("TableDescription.TableStatus")
i = 0
Dim count_i As Long
count_i = jsonResponse.SizeOfArray("TableDescription.AttributeDefinitions")
Do While i < count_i
    jsonResponse.I = i
    AttributeName = jsonResponse.StringOf("TableDescription.AttributeDefinitions[i].AttributeName")
    AttributeType = jsonResponse.StringOf("TableDescription.AttributeDefinitions[i].AttributeType")
    i = i + 1
Loop
i = 0
count_i = jsonResponse.SizeOfArray("TableDescription.KeySchema")
Do While i < count_i
    jsonResponse.I = i
    AttributeName = jsonResponse.StringOf("TableDescription.KeySchema[i].AttributeName")
    KeyType = jsonResponse.StringOf("TableDescription.KeySchema[i].KeyType")
    i = i + 1
Loop
i = 0
count_i = jsonResponse.SizeOfArray("TableDescription.LocalSecondaryIndexes")
Do While i < count_i
    jsonResponse.I = i
    IndexArn = jsonResponse.StringOf("TableDescription.LocalSecondaryIndexes[i].IndexArn")
    IndexName = jsonResponse.StringOf("TableDescription.LocalSecondaryIndexes[i].IndexName")
    IndexSizeBytes = jsonResponse.IntOf("TableDescription.LocalSecondaryIndexes[i].IndexSizeBytes")
    ItemCount = jsonResponse.IntOf("TableDescription.LocalSecondaryIndexes[i].ItemCount")
    ProjectionProjectionType = jsonResponse.StringOf("TableDescription.LocalSecondaryIndexes[i].Projection.ProjectionType")
    j = 0
    count_j = jsonResponse.SizeOfArray("TableDescription.LocalSecondaryIndexes[i].KeySchema")
    Do While j < count_j
        jsonResponse.J = j
        AttributeName = jsonResponse.StringOf("TableDescription.LocalSecondaryIndexes[i].KeySchema[j].AttributeName")
        KeyType = jsonResponse.StringOf("TableDescription.LocalSecondaryIndexes[i].KeySchema[j].KeyType")
        j = j + 1
    Loop
    i = i + 1
Loop