The Searchdomain-FileFieldSearch interface includes various settings.

Table: Searchdomain-FileFieldSearch

fileNamestringyes Name of the CSV or JSON file from which to retrieve the field entries.
fieldNamestringyes The name of the field in the file from which to return entries.
prefixFilterstring  Text on which to filter values by prefix.
valueFilters[FileFieldFilterType] = nyes The exact values that given fields should have for an entry to be part of the result. Its datatype is field: string and value: [string], both required.
fieldsToInclude[string]yes Names of the fields to include in the result.
maxEntries(integer): [DictionaryEntryType]yes Maximum number of values to retrieve from the file (see DictionaryEntryType Table).

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.