# PutRecordsRequestEntry
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Represents the output for `PutRecords`.

## Contents
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 ** Data **   <a name="Streams-Type-PutRecordsRequestEntry-Data"></a>
The data blob to put into the record, which is base64-encoded when the blob is serialized. When the data blob (the payload before base64-encoding) is added to the partition key size, the total size must not exceed the maximum record size (10 MiB).  
Type: Base64-encoded binary data object  
Length Constraints: Minimum length of 0. Maximum length of 10485760.  
Required: Yes

 ** PartitionKey **   <a name="Streams-Type-PutRecordsRequestEntry-PartitionKey"></a>
Determines which shard in the stream the data record is assigned to. Partition keys are Unicode strings with a maximum length limit of 256 characters for each key. Amazon Kinesis Data Streams uses the partition key as input to a hash function that maps the partition key and associated data to a specific shard. Specifically, an MD5 hash function is used to map partition keys to 128-bit integer values and to map associated data records to shards. As a result of this hashing mechanism, all data records with the same partition key map to the same shard within the stream.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Required: Yes

 ** ExplicitHashKey **   <a name="Streams-Type-PutRecordsRequestEntry-ExplicitHashKey"></a>
The hash value used to determine explicitly the shard that the data record is assigned to by overriding the partition key hash.  
Type: String  
Pattern: `0|([1-9]\d{0,38})`   
Required: No

## See Also
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For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/kinesis-2013-12-02/PutRecordsRequestEntry) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/kinesis-2013-12-02/PutRecordsRequestEntry) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/kinesis-2013-12-02/PutRecordsRequestEntry)