This repo contains a number of commonly used ElasticSearch CRUDs for use with .NET and C# applications. The utilities and snippets make use of NEST (http://nest.azurewebsites.net/) and Elasticsearch.Net the two official clients for ElasticSearch.

Elasticsearch.Net is a low level, dependency free, client. All the Elasticsearch API endpoints. It comes with builtin, configurable/overridable, cluster failover retry mechanisms.

NEST is a high level client that has the advantage of having mapped all the request and response objects, comes with a strongly typed query DSL that maps 1 to 1 with the Elasticsearch query DSL, and takes advantage of specific .NET features such as covariant results. NEST internally uses, and still exposes, the low level Elasticsearch.Net client.

Examples can be found:

• http://joelabrahamsson.com/extending-aspnet-mvc-music-store-with-elasticsearch/
• https://github.com/searchbox-io/.net-sample

#Elasticsearch Re-Indexing with Zero Downtime Background: https://www.elastic.co/blog/changing-mapping-with-zero-downtime

For good read - problems and solutions: https://blog.codecentric.de/en/2014/09/elasticsearch-zero-downtime-reindexing-problems-solutions/