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C# Web API Examples

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(C#) 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

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Chilkat .NET Assemblies

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Chilkat for Mono

Chilkat.Rest rest = new Chilkat.Rest();
bool success;

// 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

Chilkat.AuthAws authAws = new Chilkat.AuthAws();
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/
bool bTls = true;
int port = 443;
bool bAutoReconnect = 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) {
    Debug.WriteLine("ConnectFailReason: " + Convert.ToString(rest.ConnectFailReason));
    Debug.WriteLine(rest.LastErrorText);
    return;
}

// 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"
//     }
//   ]
// }

Chilkat.JsonObject json = new Chilkat.JsonObject();
int i = 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;
int j = 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");

Chilkat.StringBuilder sbRequestBody = new Chilkat.StringBuilder();
json.EmitSb(sbRequestBody);
Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

int respStatusCode = rest.ResponseStatusCode;
Debug.WriteLine("response status code = " + Convert.ToString(respStatusCode));

if (respStatusCode >= 400) {
    Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(rest.ResponseHeader);
    Debug.WriteLine("Response Body:");
    Debug.WriteLine(sbResponseBody.GetAsString());
    return;
}

Chilkat.JsonObject jsonResponse = new Chilkat.JsonObject();
jsonResponse.LoadSb(sbResponseBody);

jsonResponse.EmitCompact = false;
Debug.WriteLine(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

string AttributeName;
string AttributeType;
string KeyType;
string IndexArn;
string IndexName;
int IndexSizeBytes;
int ItemCount;
string ProjectionProjectionType;
int count_j;

string TableDescriptionTableArn = jsonResponse.StringOf("TableDescription.TableArn");
string TableDescriptionCreationDateTime = jsonResponse.StringOf("TableDescription.CreationDateTime");
int TableDescriptionItemCount = jsonResponse.IntOf("TableDescription.ItemCount");
int TableDescriptionProvisionedThroughputNumberOfDecreasesToday = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.NumberOfDecreasesToday");
int TableDescriptionProvisionedThroughputReadCapacityUnits = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.ReadCapacityUnits");
int TableDescriptionProvisionedThroughputWriteCapacityUnits = jsonResponse.IntOf("TableDescription.ProvisionedThroughput.WriteCapacityUnits");
string TableDescriptionTableName = jsonResponse.StringOf("TableDescription.TableName");
int TableDescriptionTableSizeBytes = jsonResponse.IntOf("TableDescription.TableSizeBytes");
string TableDescriptionTableStatus = jsonResponse.StringOf("TableDescription.TableStatus");
i = 0;
int count_i = jsonResponse.SizeOfArray("TableDescription.AttributeDefinitions");
while (i < count_i) {
    jsonResponse.I = i;
    AttributeName = jsonResponse.StringOf("TableDescription.AttributeDefinitions[i].AttributeName");
    AttributeType = jsonResponse.StringOf("TableDescription.AttributeDefinitions[i].AttributeType");
    i = i + 1;
}

i = 0;
count_i = jsonResponse.SizeOfArray("TableDescription.KeySchema");
while (i < count_i) {
    jsonResponse.I = i;
    AttributeName = jsonResponse.StringOf("TableDescription.KeySchema[i].AttributeName");
    KeyType = jsonResponse.StringOf("TableDescription.KeySchema[i].KeyType");
    i = i + 1;
}

i = 0;
count_i = jsonResponse.SizeOfArray("TableDescription.LocalSecondaryIndexes");
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");
    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;
    }

    i = i + 1;
}


 

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