I used to have ElasticSearch 5.2, and just upgraded to 6.0.
I am trying to create an index template following guide here, but got error
Content-Type header [application/x-www-form-urlencoded] is not supported
My query is
curl -X PUT localhost:9200/_template/template_1 -d '
{
"index_patterns": ["te*", "bar*"],
"mappings": {
"type1": {
"properties": {
"host_name": {
"type": "keyword"
}
}
}
}
}'
To fix this, add curl option -H 'Content-Type: application/json'
This error is due to strict content-type checking introduced in ElasticSearch 6.0, as explained in this post
Starting from Elasticsearch 6.0, all REST requests that include a body must also provide the correct content-type for that body.