B4X
B4X
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 B4X Downloads
Dim success As Boolean = False
Dim rest As ChilkatRest
rest.Initialize("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
Dim authAws As ChilkatAuthAws
authAws.Initialize
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
rest.SetAuthAws(authAws)
' URL: https://dynamodb.us-west-2.amazonaws.com/
Dim bTls As Boolean = True
Dim port As Int = 443
Dim bAutoReconnect As Boolean = True
' 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 <> True Then
Log("ConnectFailReason: " & rest.ConnectFailReason)
Log(rest.LastErrorText)
Return
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 ChilkatJsonObject
json.Initialize
Dim i As Int = 0
json.I = i
json.UpdateString("AttributeDefinitions[i].AttributeName", "ForumName")
json.UpdateString("AttributeDefinitions[i].AttributeType", "S")
i = i + 1
json.I = i
json.UpdateString("AttributeDefinitions[i].AttributeName", "Subject")
json.UpdateString("AttributeDefinitions[i].AttributeType", "S")
i = i + 1
json.I = i
json.UpdateString("AttributeDefinitions[i].AttributeName", "LastPostDateTime")
json.UpdateString("AttributeDefinitions[i].AttributeType", "S")
json.UpdateString("TableName", "Thread")
i = 0
json.I = i
json.UpdateString("KeySchema[i].AttributeName", "ForumName")
json.UpdateString("KeySchema[i].KeyType", "HASH")
i = i + 1
json.I = i
json.UpdateString("KeySchema[i].AttributeName", "Subject")
json.UpdateString("KeySchema[i].KeyType", "RANGE")
i = 0
json.I = i
Dim j As Int = 0
json.J = j
json.UpdateString("LocalSecondaryIndexes[i].IndexName", "LastPostIndex")
json.UpdateString("LocalSecondaryIndexes[i].KeySchema[j].AttributeName", "ForumName")
json.UpdateString("LocalSecondaryIndexes[i].KeySchema[j].KeyType", "HASH")
j = j + 1
json.J = j
json.UpdateString("LocalSecondaryIndexes[i].KeySchema[j].AttributeName", "LastPostDateTime")
json.UpdateString("LocalSecondaryIndexes[i].KeySchema[j].KeyType", "RANGE")
json.UpdateString("LocalSecondaryIndexes[i].Projection.ProjectionType", "KEYS_ONLY")
json.UpdateInt("ProvisionedThroughput.ReadCapacityUnits", 5)
json.UpdateInt("ProvisionedThroughput.WriteCapacityUnits", 5)
json.UpdateString("Tags[0].Key", "Owner")
json.UpdateString("Tags[0].Value", "BlueTeam")
rest.AddHeader("Content-Type", "application/x-amz-json-1.0")
rest.AddHeader("X-Amz-Target", "DynamoDB_20120810.CreateTable")
rest.AddHeader("Accept-Encoding", "identity")
Dim sbRequestBody As ChilkatStringBuilder
sbRequestBody.Initialize
json.EmitSb(sbRequestBody)
Dim sbResponseBody As ChilkatStringBuilder
sbResponseBody.Initialize
success = rest.FullRequestSb("POST", "/", sbRequestBody, sbResponseBody)
If success <> True Then
Log(rest.LastErrorText)
Return
End If
Dim respStatusCode As Int = rest.ResponseStatusCode
Log("response status code = " & respStatusCode)
If respStatusCode >= 400 Then
Log("Response Status Code = " & respStatusCode)
Log("Response Header:")
Log(rest.ResponseHeader)
Log("Response Body:")
Log(sbResponseBody.GetAsString)
Return
End If
Dim jsonResponse As ChilkatJsonObject
jsonResponse.Initialize
jsonResponse.LoadSb(sbResponseBody)
jsonResponse.EmitCompact = False
Log(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 Int
Dim ItemCount As Int
Dim ProjectionProjectionType As String
Dim count_j As Int
Dim TableDescriptionTableArn As String = jsonResponse.StringOf("TableDescription.TableArn")
Dim TableDescriptionCreationDateTime As String = jsonResponse.StringOf("TableDescription.CreationDateTime")
Dim TableDescriptionItemCount As Int = jsonResponse.IntOf("TableDescription.ItemCount")
Dim TableDescriptionProvisionedThroughputNumberOfDecreasesToday As Int = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.NumberOfDecreasesToday")
Dim TableDescriptionProvisionedThroughputReadCapacityUnits As Int = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.ReadCapacityUnits")
Dim TableDescriptionProvisionedThroughputWriteCapacityUnits As Int = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.WriteCapacityUnits")
Dim TableDescriptionTableName As String = jsonResponse.StringOf("TableDescription.TableName")
Dim TableDescriptionTableSizeBytes As Int = jsonResponse.IntOf("TableDescription.TableSizeBytes")
Dim TableDescriptionTableStatus As String = jsonResponse.StringOf("TableDescription.TableStatus")
i = 0
Dim count_i As Int = 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