leptos 0.4.5

v0.4.5

on Rust Cargo

I've gotten back into a regular rhythm of patch releases pulling in some of the smaller bugfixes, but haven't had time to write release notes for each one. I should just auto-generate them, I suppose—sorry about that!

Anyway here's a quick summary of the new features included in the past few releases. The full changelog below includes various bugfixes, chores, and updates to the docs as well.

• Some useful fixes to support for cargo leptos watch --hot-reload
• leptos_axum::extract_with_state to support extractors that use a State, if it's been provided via context in a custom handler
• The watch function, which functions as a more configurable create_effect, including the ability to explicitly list dependencies, stop listening to them, whether to run immediately or lazily, etc.
• Better 404 page support in Actix examples and templates
• Added support for adding Content-Security-Policy nonces to inline script and style tags with use_nonce and the nonce feature
• Rewritten <For/> diffing algorithm that both fixes a number of correctness issues/edge cases in <For/> and drops ~10kb from the WASM binary

Basically, a bunch of small but really useful changes, and about a hundred bugfixes.

I also just want to give a shout-out to @agilarity, who's become one of the top contributors to the library through a very helpful focus on CI and testing. If you're ever looking for a great model of how to test a Leptos frontend app, the counters_stable example now features two complete test suites, one in JS using Playwright and one written in Rust using wasm_bindgen_test. This has been a huge amount of very impressive work.

Complete Changelog

• v0.4.0 by @gbj in #1250
• chore: remove unused variable warnings with ssr props by @tqwewe in #1244
• test(counters_stable): add missing e2e tests by @agilarity in #1251
• docs: update server fn docs by @gbj in #1252
• test(router_example): add playwright tests by @nomorechokedboy in #1247
• Add fallback support for workspace in get_config_from_str by @afiqzx in #1249
• fix: regression in ability to use signals directly in the view in stable by @gbj in #1254
• fix: hot-reloading view marker line number by @gbj in #1255
• docs: update 02_getting_started.md by @gbj in #1256
• example/readme: Link to 'VS Browser' ext; format. by @srid in #1261
• chore: new cargo fmt by @gbj in #1266
• feat: implement PartialEq on ServerFnError by @M1cha in #1260
• Minor: Ran cargo clippy --fix and reviewed changes. by @martinfrances107 in #1259
• fix: HtmlElement::dyn_classes() when adding classes by @gbj in #1265
• fix: clearing <For/> that has a previous sibling in release mode (fixes #1258) by @gbj in #1267
• Added watch by @maccesch in #1262
• fix: error messages in dyn_classes by @gbj in #1270
• docs: add docs on responses/redirects and clarification re: Axum State(_) extractors by @gbj in #1272
• fix: improved diagnostics about non-reactive signal access by @gbj in #1277
• fix: duplicate text nodes during <For/> hydration (closes #1279) by @gbj in #1281
• fix: untracked read in <Redirect/> by @gbj in #1280
• fix: issue with class hydration not removing classes correctly by @gbj in #1287
• fix: use once_cell::OnceCell rather than std::OnceCell by @gbj in #1288
• leptos axum extract with state by @sjud in #1275
• examples: add 404 support in Actix examples (closes #1031) by @gbj in #1291
• fixed example for error handling by @webmstk in #1292
• Adding instructions to add a tailwind plugin to examples. by @dessalines in #1293
• chore: add mdbook in flake by @gbj in #1299
• test(counters_stable): add wasm testing by @agilarity in #1278
• fixed typo in parent-child doc by @webmstk in #1300
• Rework diff functionality for Each component by @g-re-g in #1296
• docs: must use View by @gbj in #1302
• docs: fix braces in <Show/> example by @gbj in #1303
• fix: <ActionForm/> should check origin correctly before doing a full-page refresh by @gbj in #1304
• feat: use lazy thread local for regex by @tqwewe in #1309
• test(counters_stable/wasm): enter count by @agilarity in #1307
• docs: clarify WASM target by @gbj in #1318
• update warnings to remove mention of csr as a default feature by @Heliozoa in #1313
• docs: typo by @maheshbansod in #1315
• docs: typo & punctuation by @maheshbansod in #1316
• refactor(ci): improve the organization of cargo make tasks by @agilarity in #1320
• feat(leptos-config): kebab-case via serde's rename_all by @filipdutescu in #1308
• fix: <ActionForm/> should set value even if redirected by @gbj in #1321
• feat(config): implement common traits for Env by @filipdutescu in #1324
• fix: Actix server fn redirect() duplicate Location headers by @gbj in #1326
• Bump indexmap to version 2 by @g-re-g in #1325
• fix: warning generated by new #[must_use] on views by @gbj in #1329
• docs: clarify nightly in "Getting Started" by @gbj in #1330
• fix: event delegation issue with <input name="host"> by @gbj in #1332
• feat: allow active_class prop on <A/> by @gbj in #1323
• fix: routing logic to scroll to top was broken by @gbj in #1335
• fix: check LEPTOS_OUTPUT_NAME correctly at compile time (closes #1337) by @gbj in #1338
• fix: un-register <Suspense/> from resource reads when <Suspense/> is unmounted by @gbj in #1342
• build: run tasks from workpace or member directory by @agilarity in #1339
• docs: how not to mutate the DOM during rendering by @gbj in #1344
• fix: server_fn rustls feature shouldn't pull in default-tls by @gbj in #1343
• Book, don't run rust code snippets and update getting started by @g-re-g in #1346
• use cfg_attr for conditional derives by @CircuitSacul in #1349
• docs: improve ServerFnError when a server function is not found by @gbj in #1350
• docs: don't warn when a resource resolves after its scope has been disposed by @gbj in #1351
• fix: duplicated meta content during async rendering by @gbj in #1352
• ci: speed up verification by @agilarity in #1347
• fix: hydration-key conflicts between <ErrorBoundary/> children and fallback by @gbj in #1354
• feat: add support for adding CSP nonces by @gbj in #1348
• docs/warning: fix <ActionForm/> docs and add runtime warning for invalid encodings by @gbj in #1360
• ci(ci): only run on source change by @agilarity in #1357
• ci(check-examples): only run on source change by @agilarity in #1356
• fix: correctly show fallback for Transition on first load even if not hydrating by @gbj in #1362
• fix: update link to example code in book testing page by @BakerNet in #1365
• doc: previews to backup CodeSandbox by @jdevries3133 in #1169
• Hot reload bug-fix by @sebastian in #1368
• perf: exclude hydration code in CSR mode by @gbj in #1372
• fix: release lock on stored values during update/set by @gbj in #1373
• fix: memory leak in leptos_axum by @gbj in #1374

New Contributors

• @tqwewe made their first contribution in #1244
• @nomorechokedboy made their first contribution in #1247
• @afiqzx made their first contribution in #1249
• @srid made their first contribution in #1261
• @M1cha made their first contribution in #1260
• @webmstk made their first contribution in #1292
• @dessalines made their first contribution in #1293
• @Heliozoa made their first contribution in #1313
• @maheshbansod made their first contribution in #1315
• @CircuitSacul made their first contribution in #1349
• @BakerNet made their first contribution in #1365
• @jdevries3133 made their first contribution in #1169
• @sebastian made their first contribution in #1368

Full Changelog: v0.4.0...v0.4.5