BUILT INTO EVERY GOODSPEED APP
Optimistic Mutations
A generic hook applies a local state change instantly on user action and automatically rolls back to the previous state if the server call fails, making every mutation feel instant without custom try/catch boilerplate.
- Tier: Core
- Status: Static
- Always enabled
WHY IT MATTERS
Most mobile app projects spend weeks plumbing the same infrastructure before writing a single line of product code. Optimistic Mutations is one of those cross-cutting concerns that every app eventually needs but almost none get right the first time. Permissions are handled incorrectly, tokens expire silently, or the feature breaks after an OS update nobody tested against.
Goodspeed solves this by shipping optimistic mutations as a production-grade, tested implementation inside every generated app. The code follows the patterns in the GAS template - the same 246-feature catalog that powers every app we build. Included in every generated app with no configuration required. You own the code from day one, can read every line, and can hire any React Native developer to extend it. The build pipeline verifies the feature compiles and routes resolve before the app lands in your repository, so you are not the one catching the integration error at 2 am before launch.
HOW IT IS WIRED
Real code from the GAS template
The excerpt below is lifted verbatim from gas.config.ts in the gas-template repository. This is the code your generated app gets, not pseudocode, not a description of intent.
// Enable this feature in gas.config.ts
export const gasConfig = {
features: {
// Set the relevant flag to true to enable
},
};Source: goodspeed-apps/gas-template → gas.config.ts
HONEST LIMITS
When Optimistic Mutations is the wrong choice
Avoid for destructive actions (delete account, money transfers) where showing a false success state before server confirmation is unacceptable.
Tier: Core · Static
Evaluate your use case
Check whether optimistic mutations aligns with your target audience, platform constraints, and regulatory environment before enabling it.
Audit the config
This feature is always enabled. If you need to disable it, remove the corresponding template files after generation.
Seek alternatives
If the built-in implementation does not fit, the generated codebase is standard React Native + Expo code. Any library in the Expo ecosystem can replace the default.
APPS USING THIS FEATURE
Every generated Goodspeed app includes optimistic mutations. Browse the ideas catalog to see apps across all categories that ship with this feature wired in.
CAPABILITIES
Optimistic Mutations capability breakdown
Concrete dimensions of what the built-in optimistic mutations implementation covers. These reflect the actual template code, not a marketing summary.
| Item | Description | Strength |
|---|---|---|
| Storage backend | Data for this feature is managed by React state (in-memory). | React state (in-memory) |
| Network mode | This feature operates in Hybrid mode. | Hybrid |
| Sync frequency | Data syncs On-write. | On-write |
| Tier | Core feature — included in every app. | Core |
| Template status | Works out of the box with no config changes. | Static |
GET IT BUILT INTO YOUR APP