Required – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch expects a certain field in the request body but it’s missing. The field name is usually specified within the brackets [{}]. This could be due to incorrect or incomplete request syntax. To resolve this, ensure that all required fields are included in your request and that the syntax is correct. Also, check your Elasticsearch version as different versions may require different fields. Lastly, ensure that the data type of the field matches what Elasticsearch expects.

This guide will help you check for common problems that cause the log ” Required [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “Required [{}]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 if (x || y || type || coordinates) {
 throw new ElasticsearchParseException(fieldError());
 } else if (found.size() == 0) {
 if (x) {
 throw new ElasticsearchParseException("Required [{}]"; yField);
 } else if (y) {
 throw new ElasticsearchParseException("Required [{}]"; xField);
 } else if (coordinates) {
 throw new ElasticsearchParseException("Required [{}]"; TYPE);
 } else if (type) {