Could not parse watch execution request unexpected token – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to parse a watch execution request due to an unexpected token. This usually happens when there’s a syntax error in the JSON body of the request. To resolve this issue, you should first validate your JSON syntax to ensure it’s correct. If the syntax is correct, check the structure of your request to ensure it matches the expected format. Also, ensure that the Elasticsearch version you’re using supports the features used in your request.

This guide will help you check for common problems that cause the log ” could not parse watch execution request. unexpected token [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: rest, request, plugin.

Log Context

Log “could not parse watch execution request. unexpected token [{}]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } else {
 throw new ElasticsearchParseException("could not parse watch execution request. unexpected token [{}]"; token);
 }  return builder.request();


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