Indexer.json

{
    "name": "{{indexer-name}}",
    "targetIndexName": "{{index-name}}",
    "dataSourceName": "{{datasource-name}}",
    "skillsetName": "{{skillset-name}}",
    "schedule": {
        "interval": "PT5M"
    },
    "disabled": false,
    "parameters": {
        "batchSize": 50,
        "maxFailedItems": -1,
        "maxFailedItemsPerBatch": -1,
        "configuration": {
            "indexedFileNameExtensions": ".pdf,.docx,.doc,.xlsx,.xls,.html,.rtf,.txt,.tsv"
        }
    },
    "fieldMappings" : [
        {
            "sourceFieldName": "metadata_storage_path",
            "targetFieldName": "metadata_storage_path"
        },
        {
            "sourceFieldName" : "metadata_storage_path",
            "targetFieldName" : "id",
            "mappingFunction" : { "name" : "base64Encode" }
        },
        {
        	"sourceFieldName": "metadata_storage_name",
        	"targetFieldName": "metadata_storage_name"
        },
        {
        	"sourceFieldName": "metadata_storage_file_extension",
        	"targetFieldName": "fileType"
        }
   ],
    "outputFieldMappings": [
        {
            "sourceFieldName": "/document/content",
            "targetFieldName": "content"
        },
        {
            "sourceFieldName": "/document/status",
            "targetFieldName": "status"
        },
        {
            "sourceFieldName": "/document/keyPhrases",
            "targetFieldName": "keyPhrases"
        }
    ]
}