Support direct handlers in useSubmit/fetcher.submit/fetcher.load

.changeset/direct-handlers-router.md

@@ -0,0 +1,61 @@
+---
+"@remix-run/router": minor
+---
+
+- Add support for direct `action` functions to be passed to `router.navigate`. This allows you to skip the creation of a new route to handle the `action` , or you can also override the defined route `action` at the call-site.
+
+**Defining an `action` at the callsite:**
+
+```jsx
+let routes = [{ path: '/' }]; // No action on route
+
+// Custom actions will behave as a submission navigation to the current location
+router.navigate(null, {
+  formMethod "post",
+  formData: new FormData(),
+  action() {
+    // You may now define your custom action here
+  }
+})
+```
+
+**Overriding an `action` at the call-site:**
+
+```jsx
+let routes = [{ path: '/', action: someAction }];
+router.navigate(null, {
+  formMethod "post",
+  formData: new FormData(),
+  action() {
+    // This will be called instead of `someAction`
+  }
+})
+```
+
+- Add support for direct `action`/`loader` functions to be passed to `router.fetch`. This allows you to skip the creation of a new route to handle the `loader` or `action`, or you can also override the defined route `loader` or `action` at the call-site.
+
+**Fetching to a direct loader without a defined route:**
+
+```jsx
+let routes = [{ path: "/", action: someAction }];
+// Note no location required
+router.fetch("key", "0", null, {
+  loader() {
+    // Call this loader for the fetcher and avoid the need for a resource route
+  },
+});
+```
+
+**Fetching to a direct action without a defined route:**
+
+```jsx
+let routes = [{ path: '/', action: someAction }];
+// Note no location required
+router.fetch("key", "0", null, {
+  formMethod "post",
+  formData: new FormData(),
+  action() {
+    // Call this action for the fetcher and avoid the need for a resource route
+  }
+})
+```

.changeset/direct-handlers.md

@@ -0,0 +1,51 @@
+---
+"react-router-dom": minor
+---
+
+Add direct `action` function support to `useSubmit`/`fetcher.submit` and direct `loader` support to `fetcher.load`. This allows you to skip the creation of a new route to handle the `action` or `loader`. If both a call-site handler and a route-defined handler exist, the call-site handler will be used.
+
+**`useSubmit:`**
+
+```jsx
+let router = createBrowserRouter([
+  {
+    path: "/",
+    Component() {
+      let submit = useSubmit();
+
+      submit(data, {
+        formMethod: "post",
+        encType: null,
+        action({ payload }) {
+          // You may now define your action here
+        },
+      });
+    },
+  },
+]);
+```
+
+**`fetcher.load`/`fetcher.submit`:**
+
+```jsx
+let router = createBrowserRouter([
+  {
+    path: "/",
+    Component() {
+      let fetcher = useFetcher();
+
+      fetcher.load(() => {
+        // You may now define a loader here
+      });
+
+      fetcher.submit(data, {
+        formMethod: "post",
+        encType: null,
+        action({ payload }) {
+          // You may now define your action here
+        },
+      });
+    },
+  },
+]);
+```

docs/hooks/use-fetcher.md

@@ -108,6 +108,16 @@ If you find yourself calling this function inside of click handlers, you can pro
 
 <docs-info>Any `fetcher.load` calls that are active on the page will be re-executed as part of revalidation (either after a navigation submission, another fetcher submission, or a `useRevalidator()` call)</docs-info>
 
+### Direct `loader` specification
+
+If you want to perform a `fetcher.load`, but you don't want/need to create a route for your `loader`, you can pass a `loader` directly to `fetcher.load`:
+
+```tsx
+fetcher.load(() => {
+  // Custom loader implementation here
+});
+```
+
 ## `fetcher.submit()`
 
 The imperative version of `<fetcher.Form>`. If a user interaction should initiate the fetch, you should use `<fetcher.Form>`. But if you, the programmer are initiating the fetch (not in response to a user clicking a button, etc.), then use this function.
@@ -139,6 +149,18 @@ If you want to submit to an index route, use the [`?index` param][indexsearchpar
 
 If you find yourself calling this function inside of click handlers, you can probably simplify your code by using `<fetcher.Form>` instead.
 
+### Direct `action` specification
+
+If you want to perform a `fetcher.submit`, but you don't want/need to create a route for your `action`, you can pass an `action` directly to `fetcher.submit`:
+
+```tsx
+fetcher.submit(data, {
+  action({ payload }) {
+    // Custom action implementation here
+  },
+});
+```
+
 ## `fetcher.data`
 
 The returned data from the loader or action is stored here. Once the data is set, it persists on the fetcher even through reloads and resubmissions.

docs/hooks/use-submit.md

@@ -91,7 +91,9 @@ You may also choose which type of serialization you'd like via the `encType` opt
 
 ```tsx
 let obj = { key: "value" };
-submit(obj, { encType: 'application/x-www-form-urlencoded' }); // -> request.formData()
+submit(obj, {
+  encType: "application/x-www-form-urlencoded",
+}); // -> request.formData()
 ```
 
 ```tsx
@@ -122,7 +124,7 @@ function action({ request, payload }) {
 
 ## Submit options
 
-The second argument is a set of options that map directly to form submission attributes:
+The second argument is a set of options that map (mostly) directly to form submission attributes:
 
 ```tsx
 submit(null, {
@@ -134,4 +136,16 @@ submit(null, {
 <Form action="/logout" method="post" />;
 ```
 
+### Direct `action` specification
+
+If you want to perform a submission, but you don't want/need to create a route for your `action`, you can pass an `action` to `useSubmit` which will perform a submission navigation to the current location but will use the provided `action`:
+
+```tsx
+submit(data, {
+  action({ request }) {
+    // Custom action implementation here
+  },
+});
+```
+
 [pickingarouter]: ../routers/picking-a-router

package.json

@@ -105,7 +105,7 @@
   },
   "filesize": {
     "packages/router/dist/router.umd.min.js": {
-      "none": "45 kB"
+      "none": "45.8 kB"
     },
     "packages/react-router/dist/react-router.production.min.js": {
       "none": "13.3 kB"