Search parameters.
| JSON representation | 
|---|
| {
  "filter": string,
  "canonicalFilter": string,
  "sortBy": string,
  "boostSpec": {
    object ( | 
| Fields | |
|---|---|
| filter | 
 Optional. The filter string to restrict search results. The syntax of the filter string is the same as  | 
| canonicalFilter | 
 Optional. The canonical filter string to restrict search results. The syntax of the canonical filter string is the same as  | 
| sortBy | 
 Optional. The sort string to specify the sorting of search results. The syntax of the sort string is the same as [SearchRequest.sort][]. | 
| boostSpec | 
 Optional. The boost spec to specify the boosting of search results. The syntax of the boost spec is the same as  |