How to create analyzer mapping for custom analyzer

Elastic Stack Elasticsearch
1

Hi

I try following mapping for custom analyzer:

{ "index" : { "_index" : "twitter", "_type" : "tweet", "_id" :
"1" ,"_analyzer"="myanalyzer" } }
{ "tweet" : { "text" : "this is a tweet" } }
{ "myanalyzer" :
{
"type" : "custom",
"tokenizer" : "standard",
"filter" : {"asciifolding","stop":{"stopwords":
{"stop1","stop2"}},"length":{"min":"0","max":"2000"},"snowball",
"standard", "lowercase"}
}
}
{ "delete" : { "_index" : "twitter", "_type" : "tweet", "_id" :
"2" } }
{ "create" : { "_index" : "twitter", "_type" : "tweet", "_id" :
"1" } }
{ "tweet" : { "text" : "another tweet" } }

please correct me if mapping is wrong. what will be correct mapping.

Thanks