How to import strings from TXT to ElasticSearch?

Question

elasticsearch

There is a text file for 1 billion lines in utf8 encoding in Russian.
You need to import from this file into the elasticsearch index, so that later you can have a full-text search for these lines.
Each line of the file should become a new document in the database with one field, say "keyword", which we will then search for.
How can this be done?

Answer 1

For dumps, restoring from them, transferring data from sales to dev, etc., I use this tool: elasticdump
In your case, you only need to convert the text file to json format.