solr/solrj/src/resources/apispec/core.Update.json

{
  "documentation": "https://lucene.apache.org/solr/guide/uploading-data-with-index-handlers.html",
  "methods": [
    "POST"
  ],
  "url": {
    "paths": [
      "/update",
      "/update/xml",
      "/update/csv",
      "/update/json",
      "/update/bin",
      "/update/json/commands"
    ]

  }
}