Sample code for 30+ languages & platforms
PowerBuilder

DynamoDB - DescribeTable

See more Amazon DynamoDB Examples

Returns information about the table, including the current status of the table, when it was created, the primary key schema, and any indexes on the table.

Chilkat PowerBuilder Downloads

Download Chilkat for PowerBuilder
PowerBuilder 
integer li_rc
integer li_Success
oleobject loo_Rest
oleobject loo_AuthAws
integer li_BTls
integer li_Port
integer li_BAutoReconnect
oleobject loo_Json
oleobject loo_SbRequestBody
oleobject loo_SbResponseBody
integer li_RespStatusCode
oleobject loo_JsonResponse
string ls_AttributeName
string ls_AttributeType
string ls_KeyType
string ls_IndexArn
string ls_IndexName
integer li_IndexSizeBytes
integer li_ItemCount
string ls_ProjectionProjectionType
integer j
integer li_Count_j
string ls_TableTableArn
string ls_TableCreationDateTime
integer li_TableItemCount
integer li_TableProvisionedThroughputNumberOfDecreasesToday
integer li_TableProvisionedThroughputReadCapacityUnits
integer li_TableProvisionedThroughputWriteCapacityUnits
string ls_TableTableName
integer li_TableTableSizeBytes
string ls_TableTableStatus
integer i
integer li_Count_i

li_Success = 0

loo_Rest = create oleobject
li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest")
if li_rc < 0 then
    destroy loo_Rest
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// 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.DescribeTable" \
//   -d '{
//     "TableName":"Thread"
// }'

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

loo_AuthAws = create oleobject
li_rc = loo_AuthAws.ConnectToNewObject("Chilkat.AuthAws")

loo_AuthAws.AccessKey = "AWS_ACCESS_KEY"
loo_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.)
loo_AuthAws.Region = "us-west-2"
loo_AuthAws.ServiceName = "dynamodb"
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
loo_Rest.SetAuthAws(loo_AuthAws)

// URL: https://dynamodb.us-west-2.amazonaws.com/
li_BTls = 1
li_Port = 443
li_BAutoReconnect = 1
// Don't forget to change the region domain (us-west-2.amazonaws.com) to your particular region.
li_Success = loo_Rest.Connect("dynamodb.us-west-2.amazonaws.com",li_Port,li_BTls,li_BAutoReconnect)
if li_Success <> 1 then
    Write-Debug "ConnectFailReason: " + string(loo_Rest.ConnectFailReason)
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    destroy loo_AuthAws
    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.

// {
//   "TableName": "Thread"
// }

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.UpdateString("TableName","Thread")

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

loo_SbRequestBody = create oleobject
li_rc = loo_SbRequestBody.ConnectToNewObject("Chilkat.StringBuilder")

loo_Json.EmitSb(loo_SbRequestBody)
loo_SbResponseBody = create oleobject
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat.StringBuilder")

li_Success = loo_Rest.FullRequestSb("POST","/",loo_SbRequestBody,loo_SbResponseBody)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_Json
    destroy loo_SbRequestBody
    destroy loo_SbResponseBody
    return
end if

li_RespStatusCode = loo_Rest.ResponseStatusCode
Write-Debug "response status code = " + string(li_RespStatusCode)
if li_RespStatusCode >= 400 then
    Write-Debug "Response Status Code = " + string(li_RespStatusCode)
    Write-Debug "Response Header:"
    Write-Debug loo_Rest.ResponseHeader
    Write-Debug "Response Body:"
    Write-Debug loo_SbResponseBody.GetAsString()
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_Json
    destroy loo_SbRequestBody
    destroy loo_SbResponseBody
    return
end if

loo_JsonResponse = create oleobject
li_rc = loo_JsonResponse.ConnectToNewObject("Chilkat.JsonObject")

loo_JsonResponse.LoadSb(loo_SbResponseBody)

loo_JsonResponse.EmitCompact = 0
Write-Debug loo_JsonResponse.Emit()

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// {
//   "Table": {
//     "TableArn": "arn:aws:dynamodb:us-west-2:123456789012:table/Thread",
//     "AttributeDefinitions": [
//       {
//         "AttributeName": "ForumName",
//         "AttributeType": "S"
//       },
//       {
//         "AttributeName": "LastPostDateTime",
//         "AttributeType": "S"
//       },
//       {
//         "AttributeName": "Subject",
//         "AttributeType": "S"
//       }
//     ],
//     "CreationDateTime": 1.363729002358E9,
//     "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": "ACTIVE"
//   }
// }

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

ls_TableTableArn = loo_JsonResponse.StringOf("Table.TableArn")
ls_TableCreationDateTime = loo_JsonResponse.StringOf("Table.CreationDateTime")
li_TableItemCount = loo_JsonResponse.IntOf("Table.ItemCount")
li_TableProvisionedThroughputNumberOfDecreasesToday = loo_JsonResponse.IntOf("Table.ProvisionedThroughput.NumberOfDecreasesToday")
li_TableProvisionedThroughputReadCapacityUnits = loo_JsonResponse.IntOf("Table.ProvisionedThroughput.ReadCapacityUnits")
li_TableProvisionedThroughputWriteCapacityUnits = loo_JsonResponse.IntOf("Table.ProvisionedThroughput.WriteCapacityUnits")
ls_TableTableName = loo_JsonResponse.StringOf("Table.TableName")
li_TableTableSizeBytes = loo_JsonResponse.IntOf("Table.TableSizeBytes")
ls_TableTableStatus = loo_JsonResponse.StringOf("Table.TableStatus")
i = 0
li_Count_i = loo_JsonResponse.SizeOfArray("Table.AttributeDefinitions")
do while i < li_Count_i
    loo_JsonResponse.I = i
    ls_AttributeName = loo_JsonResponse.StringOf("Table.AttributeDefinitions[i].AttributeName")
    ls_AttributeType = loo_JsonResponse.StringOf("Table.AttributeDefinitions[i].AttributeType")
    i = i + 1
loop
i = 0
li_Count_i = loo_JsonResponse.SizeOfArray("Table.KeySchema")
do while i < li_Count_i
    loo_JsonResponse.I = i
    ls_AttributeName = loo_JsonResponse.StringOf("Table.KeySchema[i].AttributeName")
    ls_KeyType = loo_JsonResponse.StringOf("Table.KeySchema[i].KeyType")
    i = i + 1
loop
i = 0
li_Count_i = loo_JsonResponse.SizeOfArray("Table.LocalSecondaryIndexes")
do while i < li_Count_i
    loo_JsonResponse.I = i
    ls_IndexArn = loo_JsonResponse.StringOf("Table.LocalSecondaryIndexes[i].IndexArn")
    ls_IndexName = loo_JsonResponse.StringOf("Table.LocalSecondaryIndexes[i].IndexName")
    li_IndexSizeBytes = loo_JsonResponse.IntOf("Table.LocalSecondaryIndexes[i].IndexSizeBytes")
    li_ItemCount = loo_JsonResponse.IntOf("Table.LocalSecondaryIndexes[i].ItemCount")
    ls_ProjectionProjectionType = loo_JsonResponse.StringOf("Table.LocalSecondaryIndexes[i].Projection.ProjectionType")
    j = 0
    li_Count_j = loo_JsonResponse.SizeOfArray("Table.LocalSecondaryIndexes[i].KeySchema")
    do while j < li_Count_j
        loo_JsonResponse.J = j
        ls_AttributeName = loo_JsonResponse.StringOf("Table.LocalSecondaryIndexes[i].KeySchema[j].AttributeName")
        ls_KeyType = loo_JsonResponse.StringOf("Table.LocalSecondaryIndexes[i].KeySchema[j].KeyType")
        j = j + 1
    loop
    i = i + 1
loop


destroy loo_Rest
destroy loo_AuthAws
destroy loo_Json
destroy loo_SbRequestBody
destroy loo_SbResponseBody
destroy loo_JsonResponse