What is the best practice to implement CQRS with elasticsearch in microservices style? [closed]
Elasticsearch can be easily used in your use-case and its very common use-case, although there are some troubles around nested field as show-cases in Go-jek engineering blog, but if you have less scale and properly configured ES cluster, you will not face significant issues.
Regarding write performance again, if you have very high write QPS than it might impact but again there are a lot of ways to optimize the write operation, which I covered in my short tips to improve indexing rate and reindexing performance.