# AwsJsonSubstitutionCommandPreprocessorConfig
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Configures the command to treat the `payloadTemplate` as a JSON document for preprocessing. This preprocessor substitutes placeholders with parameter values to generate the command execution request payload. 

## Contents
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 ** outputFormat **   <a name="iot-Type-AwsJsonSubstitutionCommandPreprocessorConfig-outputFormat"></a>
Converts the command preprocessor result to the format defined by this parameter, before sending it to the device.  
Type: String  
Valid Values: `JSON | CBOR`   
Required: Yes

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iot-2015-05-28/AwsJsonSubstitutionCommandPreprocessorConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iot-2015-05-28/AwsJsonSubstitutionCommandPreprocessorConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iot-2015-05-28/AwsJsonSubstitutionCommandPreprocessorConfig)