Golang Microservices: Searching with Elasticsearch
Let's add support for Elasticsearch! Elasticsearch is a search, store and analytics engine. If you have seen ELK before in the wild then you're already a bit familiar with Elasticsearch, E=Elasticsearch, L=Logstash and K=Kibana.
Elasticsearch is a well known tool that is already supported by all three big cloud providers:
* AWS has Managed Elasticsearch: https://aws.amazon.com/elasticsearch-...
* GCP has Elastic Cloud: https://www.elastic.co/partners/googl...
* Azure has Elastic Cloud: https://azure.microsoft.com/en-us/ove...
Elasticsearch gives the option of indexing our persisted records for allowing our users to search using different options, when can transform those records before indexing them to handle different search terms in different ways.
In Go there two popular packages for interacting with Elasticsearch:
* github.com/elastic/go-elasticsearch: Official package, creating the requests are a manual process.
* github.com/olivere/elastic: Unofficial package, implements a fluent API for creating requests.
Both of those packages are well supported and production ready, however between the two of them I'm leaning towards using "elastic/go-elasticsearch" instead of "olivere/elastic" this is because of the comment made by the author in https://github.com/olivere/elastic/is... where he mentions that perhaps a v8 of that package will not be available, that could be an issue if you're planning to upgrade to Elasticsearch v8 whenever that version is available.
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* Playlist "Golang Tools and Packages": • Golang/Go Tools and Packages
* Playlist "Testing in Go": • Testing in Golang/Go
00:00 - Start
00:11 - What is ElasticSearch?
01:46 - ElasticSearch in Go?
04:49 - Demo time
11:15 - Go + ElasticSearch
13:14 - Parting words
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