@sendtoapp/core

Link resolution and deferred install recovery for SendToApp, with no UI framework attached.

Most people want @sendtoapp/react-native instead, which wraps this and handles the platform wiring. Reach for this package when you are building for a runtime that is not React Native, or when you want to own the integration.

npm install @sendtoapp/core

import { createLinkResolver } from '@sendtoapp/core';

const resolver = createLinkResolver({ host: 'acme.sendtoapp.com' });

const route = await resolver.resolve('https://acme.sendtoapp.com/l/<code>');
// '/products/42?color=blue', or null when the link is not for this host

resolve returns null for a URL that is not one of your links, and throws for a link that has been revoked or has expired, so the two cases can be told apart.

Deferred install recovery is in @sendtoapp/core/deferred, and needs a handoff token that only a platform-specific module can obtain — on Android, the Play Install Referrer.

Documentation

Full documentation is at sendtoapp.com/docs, and sendtoapp.com is what the platform does in one page.

Quick start · Expo and React Native · Install recovery · Knowing when a link failed · Troubleshooting · HTTP API

The rest of SendToApp

• @sendtoapp/react-native — Expo and React Native, with the config plugin that writes the native declarations
• @sendtoapp/expo — Expo, with Google Play install recovery through the Expo module system
• @sendtoapp/react-native-referrer — Bare React Native, with Google Play install recovery
• @sendtoapp/mcp — An MCP server, so an agent can register apps and mint links
• @sendtoapp/protocol — The wire format the other packages share

MIT licensed. Built by SendToApp.