🗺 Alternate submission encodings

.changeset/raw-payload-submission-router.md

@@ -0,0 +1,44 @@
+---
+"@remix-run/router": minor
+---
+
+Add support for `application/json` and `text/plain` encodings for `router.navigate`/`router.fetch` submissions. To leverage these encodings, pass your data in a `body` parameter and specify the desired `formEncType`:
+
+```js
+// By default, the encoding is "application/x-www-form-urlencoded"
+router.navigate("/", {
+  formMethod: "post",
+  body: { key: "value" },
+});
+
+function action({ request }) {
+  // request.formData => FormData instance with entry [key=value]
+  // request.text => "key=value"
+}
+```
+
+```js
+// Pass `formEncType` to opt-into a different encoding
+router.navigate("/", {
+  formMethod: "post",
+  formEncType: "application/json",
+  body: { key: "value" },
+});
+
+function action({ request }) {
+  // request.json => { key: "value" }
+  // request.text => '{ "key":"value" }'
+}
+```
+
+```js
+router.navigate("/", {
+  formMethod: "post",
+  formEncType: "text/plain",
+  body: "Text submission",
+});
+
+function action({ request }) {
+  // request.text => "Text submission"
+}
+```

.changeset/raw-payload-submission.md

@@ -0,0 +1,55 @@
+---
+"react-router-dom": minor
+---
+
+Add support for `application/json` and `text/plain` encodings for `useSubmit`/`fetcher.submit`. To reflect these additional types, `useNavigation`/`useFetcher` now also contain `navigation.json`/`navigation.text` and `fetcher.json`/`fetcher.text` which are getter functions mimicking `request.json` and `request.text`. Just as a `Request` does, if you access one of these methods for the incorrect encoding type, it will throw an Error (i.e. accessing `navigation.formData` when `navigation.formEncType` is `application/json`).
+
+```jsx
+// The default behavior will still serialize as FormData
+function Component() {
+  let navigation = useNavigation();
+  let submit = useSubmit();
+  submit({ key: "value" });
+  // navigation.formEncType => "application/x-www-form-urlencoded"
+  // navigation.formData    => FormData instance
+  // navigation.text        => "key=value"
+}
+
+function action({ request }) {
+  // request.headers.get("Content-Type") => "application/x-www-form-urlencoded"
+  // request.formData                    => FormData instance
+  // request.text                        => "key=value"
+}
+```
+
+```js
+// Opt-into JSON encoding with `encType: "application/json"`
+function Component() {
+  let submit = useSubmit();
+  submit({ key: "value" }, { encType: "application/json" });
+  // navigation.formEncType => "application/json"
+  // navigation.json        => { key: "value" }
+  // navigation.text        => '{"key":"value"}'
+}
+
+function action({ request }) {
+  // request.headers.get("Content-Type") => "application/json"
+  // request.json                        => { key: "value" }
+  // request.text                        => '{"key":"value"}'
+}
+```
+
+```js
+// Opt-into JSON encoding with `encType: "application/json"`
+function Component() {
+  let submit = useSubmit();
+  submit("Text submission", { encType: "text/plain" });
+  // navigation.formEncType => "text/plain"
+  // navigation.text        => "Text submission"
+}
+
+function action({ request }) {
+  // request.headers.get("Content-Type") => "text/plain"
+  // request.text                        => "Text submission"
+}
+```

.github/workflows/test.yml

@@ -21,7 +21,14 @@ concurrency:
 
 jobs:
   test:
-    name: 🧪 Test
+    name: "🧪 Test: (Node: ${{ matrix.node }})"
+    strategy:
+      fail-fast: false
+      matrix:
+        node:
+          - 16
+          - 18
+
     runs-on: ubuntu-latest
 
     steps:
@@ -33,7 +40,7 @@ jobs:
         with:
           cache: yarn
           check-latest: true
-          node-version-file: ".nvmrc"
+          node-version: ${{ matrix.node }}
 
       - name: Disable GitHub Actions Annotations
         run: |

docs/hooks/use-fetcher.md

@@ -38,6 +38,8 @@ function SomeComponent() {
   // build your UI with these properties
   fetcher.state;
   fetcher.formData;
+  fetcher.json;
+  fetcher.text;
   fetcher.formMethod;
   fetcher.formAction;
   fetcher.data;
@@ -132,6 +134,8 @@ export function useIdleLogout() {
 }
 ```
 
+`fetcher.submit` is a wrapper around a [`useSubmit`][use-submit] call for the fetcher instance, so it also accepts the same options as `useSubmit`.
+
 If you want to submit to an index route, use the [`?index` param][indexsearchparam].
 
 If you find yourself calling this function inside of click handlers, you can probably simplify your code by using `<fetcher.Form>` instead.
@@ -200,6 +204,14 @@ function TaskCheckbox({ task }) {
 }
 ```
 
+## `fetcher.json`
+
+When using `fetcher.submit(data, { formEncType: "application/json" })`, the submitted JSON is available via `fetcher.json`.
+
+## `fetcher.text`
+
+When using `fetcher.submit(data, { formEncType: "text/plain" })`, the submitted text is available via `fetcher.text`.
+
 ## `fetcher.formAction`
 
 Tells you the action url the form is being submitted to.
@@ -231,3 +243,4 @@ fetcher.formMethod; // "post"
 [link]: ../components/link
 [form]: ../components/form
 [api-development-strategy]: ../guides/api-development-strategy
+[use-submit]: ./use-submit.md

docs/hooks/use-navigation.md

@@ -23,6 +23,8 @@ function SomeComponent() {
   navigation.state;
   navigation.location;
   navigation.formData;
+  navigation.json;
+  navigation.text;
   navigation.formAction;
   navigation.formMethod;
 }
@@ -92,6 +94,14 @@ Any POST, PUT, PATCH, or DELETE navigation that started from a `<Form>` or `useS
 
 In the case of a GET form submission, `formData` will be empty and the data will be reflected in `navigation.location.search`.
 
+## `navigation.json`
+
+Any POST, PUT, PATCH, or DELETE navigation that started from a `useSubmit(payload, { encType: "application/json" })` will have your JSON value available in `navigation.json`.
+
+## `navigation.text`
+
+Any POST, PUT, PATCH, or DELETE navigation that started from a `useSubmit(payload, { encType: "text/plain" })` will have your text value available in `navigation.text`.
+
 ## `navigation.location`
 
 This tells you what the next [location][location] is going to be.

docs/hooks/use-submit.md

@@ -78,9 +78,51 @@ formData.append("cheese", "gouda");
 submit(formData);
 ```
 
+Or you can submit `URLSearchParams`:
+
+```tsx
+let searchParams = new URLSearchParams();
+searchParams.append("cheese", "gouda");
+submit(searchParams);
+```
+
+Or anything that the `URLSearchParams` constructor accepts:
+
+```tsx
+submit("cheese=gouda&toasted=yes");
+submit([
+  ["cheese", "gouda"],
+  ["toasted", "yes"],
+]);
+```
+
+The default behavior if you submit a JSON object is to encode the data into `FormData`:
+
+```tsx
+submit({ key: "value" });
+// will serialize into request.formData() in your action
+```
+
+Or you can opt-into JSON encoding:
+
+```tsx
+submit({ key: "value" }, { encType: "application/json" });
+// will serialize into request.json() in your action
+
+submit('{"key":"value"}', { encType: "application/json" });
+// will encode into request.json() in your action
+```
+
+Or plain text:
+
+```tsx
+submit("value", { encType: "text/plain" });
+// will serialize into request.text() in your action
+```
+
 ## 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, {

docs/route/action.md

@@ -101,6 +101,10 @@ formData.get("lyrics");
 
 For more information on `formData` see [Working with FormData][workingwithformdata].
 
+### Opt-in serialization types
+
+Note that when using [`useSubmit`][usesubmit] you may also pass `encType: "application/json"` or `encType: "text/plain"` to instead serialize your payload into `request.json()` or `request.text()`.
+
 ## Returning Responses
 
 While you can return anything you want from an action and get access to it from [`useActionData`][useactiondata], you can also return a web [Response][response].
@@ -200,6 +204,7 @@ If a button name/value isn't right for your use case, you could also use a hidde
 [form]: ../components/form
 [workingwithformdata]: ../guides/form-data
 [useactiondata]: ../hooks/use-action-data
+[usesubmit]: ../hooks/use-submit
 [returningresponses]: ./loader#returning-responses
 [createbrowserrouter]: ../routers/create-browser-router
 [button]: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button

docs/route/should-revalidate.md

@@ -66,6 +66,8 @@ interface ShouldRevalidateFunction {
     formAction?: Submission["formAction"];
     formEncType?: Submission["formEncType"];
     formData?: Submission["formData"];
+    json?: Submission["json"];
+    text?: Submission["text"];
     actionResult?: DataResult;
     defaultShouldRevalidate: boolean;
   }): boolean;

package.json

@@ -109,7 +109,7 @@
   },
   "filesize": {
     "packages/router/dist/router.umd.min.js": {
-      "none": "45 kB"
+      "none": "46.4 kB"
     },
     "packages/react-router/dist/react-router.production.min.js": {
       "none": "13.4 kB"
@@ -118,10 +118,10 @@
       "none": "15.8 kB"
     },
     "packages/react-router-dom/dist/react-router-dom.production.min.js": {
-      "none": "12.1 kB"
+      "none": "12.3 kB"
     },
     "packages/react-router-dom/dist/umd/react-router-dom.production.min.js": {
-      "none": "18.1 kB"
+      "none": "18.3 kB"
     }
   }
 }

packages/react-router-dom/__tests__/concurrent-mode-navigations-test.tsx

@@ -19,7 +19,6 @@ import {
   waitFor,
 } from "@testing-library/react";
 import { JSDOM } from "jsdom";
-import LazyComponent from "./components//LazyComponent";
 
 describe("Handles concurrent mode features during navigations", () => {
   function getComponents() {