Struct aws_sdk_dynamodbstreams::Client

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pub struct Client { /* private fields */ }

Expand description

Client for Amazon DynamoDB Streams

Client for invoking operations on Amazon DynamoDB Streams. Each operation on Amazon DynamoDB Streams is a method on this this struct. .send() MUST be invoked on the generated operations to dispatch the request to the service.

Examples

Constructing a client and invoking an operation

    // create a shared configuration. This can be used & shared between multiple service clients.
    let shared_config = aws_config::load_from_env().await;
    let client = aws_sdk_dynamodbstreams::Client::new(&shared_config);
    // invoke an operation
    /* let rsp = client
        .<operation_name>().
        .<param>("some value")
        .send().await; */

Constructing a client with custom configuration

use aws_config::RetryConfig;
let shared_config = aws_config::load_from_env().await;
let config = aws_sdk_dynamodbstreams::config::Builder::from(&shared_config)
  .retry_config(RetryConfig::disabled())
  .build();
let client = aws_sdk_dynamodbstreams::Client::from_conf(config);

Implementations

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impl Client

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pub fn with_config(
client: Client<DynConnector, DynMiddleware<DynConnector>>,
conf: Config
) -> Self

Creates a client with the given service configuration.

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pub fn conf(&self) -> &Config

Returns the client’s configuration.

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impl Client

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pub fn describe_stream(&self) -> DescribeStream

Constructs a fluent builder for the DescribeStream operation.

The fluent builder is configurable:
- stream_arn(impl Into<String>) / set_stream_arn(Option<String>):
 The Amazon Resource Name (ARN) for the stream.
- limit(i32) / set_limit(Option<i32>):
 The maximum number of shard objects to return. The upper limit is 100.
- exclusive_start_shard_id(impl Into<String>) / set_exclusive_start_shard_id(Option<String>):
 The shard ID of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedShardId in the previous operation.
On success, responds with DescribeStreamOutput with field(s):
- stream_description(Option<StreamDescription>):
 A complete description of the stream, including its creation date and time, the DynamoDB table associated with the stream, the shard IDs within the stream, and the beginning and ending sequence numbers of stream records within the shards.
On failure, responds with SdkError<DescribeStreamError>

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pub fn get_records(&self) -> GetRecords

Constructs a fluent builder for the GetRecords operation.

The fluent builder is configurable:
- shard_iterator(impl Into<String>) / set_shard_iterator(Option<String>):
 A shard iterator that was retrieved from a previous GetShardIterator operation. This iterator can be used to access the stream records in this shard.
- limit(i32) / set_limit(Option<i32>):
 The maximum number of records to return from the shard. The upper limit is 1000.
On success, responds with GetRecordsOutput with field(s):
- records(Option<Vec<Record>>):
 The stream records from the shard, which were retrieved using the shard iterator.
- next_shard_iterator(Option<String>):
 The next position in the shard from which to start sequentially reading stream records. If set to null, the shard has been closed and the requested iterator will not return any more data.
On failure, responds with SdkError<GetRecordsError>

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pub fn get_shard_iterator(&self) -> GetShardIterator

Constructs a fluent builder for the GetShardIterator operation.

The fluent builder is configurable:
- stream_arn(impl Into<String>) / set_stream_arn(Option<String>):
 The Amazon Resource Name (ARN) for the stream.
- shard_id(impl Into<String>) / set_shard_id(Option<String>):
 The identifier of the shard. The iterator will be returned for this shard ID.
- shard_iterator_type(ShardIteratorType) / set_shard_iterator_type(Option<ShardIteratorType>):
 Determines how the shard iterator is used to start reading stream records from the shard:
 - AT_SEQUENCE_NUMBER - Start reading exactly from the position denoted by a specific sequence number.
 - AFTER_SEQUENCE_NUMBER - Start reading right after the position denoted by a specific sequence number.
 - TRIM_HORIZON - Start reading at the last (untrimmed) stream record, which is the oldest record in the shard. In DynamoDB Streams, there is a 24 hour limit on data retention. Stream records whose age exceeds this limit are subject to removal (trimming) from the stream.
 - LATEST - Start reading just after the most recent stream record in the shard, so that you always read the most recent data in the shard.
- sequence_number(impl Into<String>) / set_sequence_number(Option<String>):
 The sequence number of a stream record in the shard from which to start reading.
On success, responds with GetShardIteratorOutput with field(s):
- shard_iterator(Option<String>):
 The position in the shard from which to start reading stream records sequentially. A shard iterator specifies this position using the sequence number of a stream record in a shard.
On failure, responds with SdkError<GetShardIteratorError>

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pub fn list_streams(&self) -> ListStreams

Constructs a fluent builder for the ListStreams operation.

The fluent builder is configurable:
- table_name(impl Into<String>) / set_table_name(Option<String>):
 If this parameter is provided, then only the streams associated with this table name are returned.
- limit(i32) / set_limit(Option<i32>):
 The maximum number of streams to return. The upper limit is 100.
- exclusive_start_stream_arn(impl Into<String>) / set_exclusive_start_stream_arn(Option<String>):
 The ARN (Amazon Resource Name) of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedStreamArn in the previous operation.
On success, responds with ListStreamsOutput with field(s):
- streams(Option<Vec<Stream>>):
 A list of stream descriptors associated with the current account and endpoint.
- last_evaluated_stream_arn(Option<String>):
 The stream ARN of the item where the operation stopped, inclusive of the previous result set. Use this value to start a new operation, excluding this value in the new request.
 
 If LastEvaluatedStreamArn is empty, then the “last page” of results has been processed and there is no more data to be retrieved.
 
 If LastEvaluatedStreamArn is not empty, it does not necessarily mean that there is more data in the result set. The only way to know when you have reached the end of the result set is when LastEvaluatedStreamArn is empty.
On failure, responds with SdkError<ListStreamsError>