Returns the status of one or all available indices currently running in the node.
This method will use 10 .
Reference:
Parameters
index_name - string, optional
Filter results for an index with a specific name.
Returns
{ (json object)
"name" : { (json object) The name of the index
"synced" : true|false, (boolean) Whether the index is synced or not
"best_block_height" : n (numeric) The block height to which the index is synced
}
}