Firesearch SDK for Dart

Unofficial Firesearch SDK for Dart


Firesearch is a solution for full-text search on top of Firestore.


You use indexes & documents to enable full-text search. An index stores the documents. It can be configured to allow stemming & case-sensitive search.

You will need to instantiate a firesearch client for every one of the services:

var firesearchClient = Client(
    host: "<Your Firesearch Host>",
    apiKey: "<Your API Key>");

Using in Flutter Web or Flutter Mobile

In a frontend application you will only need to search documents. Indexing and putting documents into Firesearch should only be done by a backend service.

  1. Retrieve an access key from your backend api.
  2. Create a SearchQuery with the retrieved key:
final searchQuery = SearchQuery(
          indexPath: 'path/to/index',
          accessKey: '<accessKey retrieved from a server>',
          limit: 100,
          text: 'search for this');
final request = SearchRequest(query: searchQuery);

var response =;

Access Key Service

Access Keys allow you to safely search from web & mobile. Without access keys you will have to expose the Firesearch API Key. It is recommended to have a backend endpoint that returns an access key to the mobile or web client, which they can then use for executing search requests against Firesearch.

Create Access Key

Note This should ideally be done in the backend. In your frontend application, you should be requesting for the access key from the backend.

var request = GenerateKeyRequest(indexPathPrefix: 'path/to/index');
var accessKey = await accessKeyService.generateKey(request);

Index Service

Create an index service:

var indexService = IndexService(firesearchClient);
  • Create an index:
var index = Index(
    indexPath: 'path/to/index',
    name: 'My Test Index',
    language: 'english');
final request = CreateIndexRequest(index: index);
var indexResponse = await indexService.createIndex(request);
  • Delete an index:
final request = DeleteIndexRequest(
          indexPath: 'path/to/index');
var indexResponse = await indexService.deleteIndex(request);
  • Put a document in the index:
 final request = PutDocRequest(
          indexPath: 'path/to/index',
          doc: Doc(id: 'document-id', fields: [
            Field(key: 'key', value: {'name': 'searchable_field'})
var response = await indexService.putDoc(request);
  • Delete a document from the index:
 final request = DeleteDocRequest(
    indexPath: 'firesearch-tutorial/indexes/index-name',
    id: 'document-id');

var response = await indexService.deleteDoc(request);
  • Get an index:
final request =
      GetIndexRequest(indexPath: 'path/to/index');
var response = await indexService.getIndex(request);
  • Get a list of indexes:
var response = await indexService.getIndexes();
  • Search
final searchQuery = SearchQuery(
          indexPath: 'path/to/index',
          accessKey: 'accessKey',
          limit: 100,
          text: 'search for this');
final request = SearchRequest(query: searchQuery);

var response =;


Generate types

The official Firesearch SDK is highly typed. Every output & input to a function has a corresponding type. We try to leverage freezed and json_serializable to generate these types.

pub run build_runner build --delete-conflicting-outputs

Dart Versions

  • Dart 2: >= 2.12