Fulcro is a library for building data-driven full-stack applications for the web. It uses React and is written in Clojure and Clojurescript.
NOTE: If you are using Java 9, you may need to include "--add-modules java.xml.bind" to your JVM.
1. Version Differences
Fulcro has undergone a number of face-lifts over its lifetime.
- 1.x
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An add-on library for Om Next. Has various limitations as a result of this, and several bugs that are deep within Om Next (which was not getting updates).
- 2.0 - 2.4
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No longer depends on Om Next. Public API is the same, except where improvements and fixes were needed.
- 2.5
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Integrated co-located CSS for better support (e.g. localized-dom), made all server dependencies dynamic, rewrite of i18n. This version requires you to change a few i18n things if you were using it, and adds API to the DOM to make UI much more concise.
- 2.6
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Changes for React 16+. Changes in React led to a change in the underlying rendering refresh optimizations.
- 3.0
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This version. A nearly complete rewrite of the internals. Simplifies a lot of things, makes others more extensible, and preserves the shape of the API; however, it is not 100% API compatible with prior versions. We hope to provide an API-compatibility layer that will make porting older apps easier; however, some of the improved internals do change a few operational semantics.
2. Status
This project is not even alpha yet. It is nearly complete enough to write a full-stack working app, but there is a lot of work remaining.
The basic data fetch API has been ported, so most of a full-stack working app can be written (and is in the repo as todomvc). Only the port of HTTP network layer remains before we have something usable for full-stack.
The general road map (with status) is:
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Rewrite Transaction Internals (100% done, but needs more integration testing)
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Write tx processing that is extensible, and can support all currently-known use-cases (100%)
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Make tx system pluggable (100%)
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Support for new tx-combining at network layer (designed, not implemented)
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New
defmutation(possibly to be renamed) (100%)-
Support for
result-action(100%) -
Support for "extensible" mutation semantics (100%)
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Support for quote-free transactions (100%)
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-
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Network Layer (80%)
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Write adapters or otherwise build new remote networking
-
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Merge Logic (95%)
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Split merge routines into easily reusable bits (100%)
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Make it possible for users to easily choose/customize merge strategy (100%)
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Figure out the right place to put helpers like integrate-ident, etc.
-
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App DB normalization/denormalization (90%)
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Improve performance of
db→tree(100%, up to 6x faster) -
Factor logic out into clear namespaces (100%)
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Add better tests (50%)
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-
Components
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Support for React class-based components (95%)
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Rewrite of
defsc(100%)-
Drop protocols (100%)
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Support extensibility (90% complete)
-
-
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Turn component-local CSS into a pure library concern (easy to do)
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Turn i18n into a pure library concern (easy)
-
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Move UI State Machines into this library (0%)
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Move Dynamic Router into this library (0%)
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Move to EQL as Source of AST logic (100%)
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Minimize dependencies (100%)
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Nice to Haves (depends a bit on contributors)
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React Hooks-based
defsc(designed and prototyped, but needs integration work)
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3. Copyright and License
Fulcro is:
Copyright (c) 2017, Fulcrologic, LLC The MIT License (MIT)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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