[FEATURE] Add support to check if the index exists?

[akshay-vishnoi]

Is your feature request related to a problem?

OpenSearch gives an option to check if the index exists by simply returning the status of either 200 or 404. But this package doesn't support this API yet.

What alternatives have you considered?

For now, I have to run the operation like deleting the index and catching the error index-not-found.

Or please let me know if the support already exists. Thanks

[nhtruong]

It does actually:

opensearch-js/api/api/indices.js

Line 667 in 4031f96

IndicesApi.prototype.exists = function indicesExistsApi(params, options, callback) {

client.indices.exists({ index: 'books'})
API actions related to manipulating indices can be found in the indices namespace