Request body is required – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when an Elasticsearch request is made without a required body. This typically happens when you’re trying to perform an operation that needs additional information, like creating or updating a document. To resolve this issue, ensure that your request includes a valid JSON body with all the necessary information. If you’re using a tool or library to make the request, check its documentation to ensure you’re using it correctly. Also, ensure that the content type of your request is set to ‘application/json’.

This guide will help you check for common problems that cause the log ” request body is required ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: rest, request.

Log Context

Log “request body is required” class name is RestRequest.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

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/**
* @return content of the request body or throw an exception if the body or content type is missing
*/
public final BytesReference requiredContent() {
if (hasContent() == false) {
throw new ElasticsearchParseException("request body is required");
} else if (xContentType.get() == null) {
throw new IllegalStateException("unknown content type");
}
return content();
}
/** * @return content of the request body or throw an exception if the body or content type is missing */ public final BytesReference requiredContent() { if (hasContent() == false) { throw new ElasticsearchParseException("request body is required"); } else if (xContentType.get() == null) { throw new IllegalStateException("unknown content type"); } return content(); }
 /**
 * @return content of the request body or throw an exception if the body or content type is missing
 */
 public final BytesReference requiredContent() {
 if (hasContent() == false) {
 throw new ElasticsearchParseException("request body is required");
 } else if (xContentType.get() == null) {
 throw new IllegalStateException("unknown content type");
 }
 return content();
 }

 

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