This example demonstrates how to use the Elasticsearch Go client to implement a small command-line utility and web application.
The utility fetches information from the xkcd.com JSON API, indexes it into Elasticsearch, and provides both a command-line and web interface to search the data. See a live version at https://xkcd-golang.app.elstc.co.
Run the main executable to list the options:
go run cmd/xkcd/main.go
To index the data into Elasticsearch, run:
go run cmd/xkcd/main.go index
To use the command-line search interface, run:
go run cmd/xkcd/main.go search python
To launch the web application, run:
go run cmd/xkcd/main.go server
The store.go file demonstrates how to embed elasticsearch.Client in a custom type, build queries, perform requests, and parse the responses while handling total results, highlighted fields, etc.
The store_test.go file demonstrates how to mock the client for unit testing a component.