Clients

Libraries for calling backd from applications.

Any HTTP client can call backd: the whole API is described in api/openapi.yaml. Client libraries wrap it for applications.

Client	Runtimes	Status
JavaScript (`backd-js`)	Browsers, Node 20+, Deno, Bun, edge runtimes	Auth, sessions, collections and admin API available, with example apps; on npm: `npm install backd-js`
Dart (`package:backd`)	Flutter mobile and desktop, standalone Dart	Auth, sessions, collections, files, jobs, orgs, push, consents, realtime and generated realm types — everything but the admin API; on pub.dev: `dart pub add backd`
Kotlin, Swift and others	Anything openapi-generator supports	Generated from your realm’s OpenAPI document; typed calls and models, without a hand-written client’s cache, retries and sign-in flows

Generated types are TypeScript or Dart types for a realm’s documents, queries, functions and configuration, made by backd types from the config.

JavaScript client

backd-js: auth, sessions, collections and the admin API from browsers, Node and edge runtimes.

Dart client

package:backd: auth, sessions, collections, files, jobs and realtime from Flutter apps and standalone Dart programs.

Generated types

backd types: TypeScript types for a realm’s documents, queries, functions, configuration, templates and roles, generated from the config the server enforces.