redux-promise-middleware | Enables simple , yet robust handling | Reactive Programming library
kandi X-RAY | redux-promise-middleware Summary
kandi X-RAY | redux-promise-middleware Summary
Redux Promise Middleware enables simple, yet robust handling of async action creators in Redux. Given a single action with an async payload, the middleware transforms the action to a separate pending action and a separate fulfilled/rejected action, representing the states of the async action. The middleware can be combined with Redux Thunk to chain action creators.
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- Creates a dispatch function for the action .
redux-promise-middleware Key Features
redux-promise-middleware Examples and Code Snippets
Community Discussions
Trending Discussions on redux-promise-middleware
QUESTION
When I start my react project in Fedora 32 using command yarn start
, it shows error like this:
ANSWER
Answered 2022-Mar-04 at 13:55First, make sure your node.js version is not superior than the latest stable version(currently 16.14.0
). You can check here on nodejs.org.
Then, to compile .scss
or .sass
files you should be using sass
package instead of node-sass
. Fo that do :
QUESTION
I keep getting the statement "do not save non-serializable variables in your state" in almost every google search result - But what happens when I really should?
Progect: I am building an app for deviceS connected via SerialPort (using SerialPort WebAPI). I wish to save the connection instance since I use it throughout all my application and I am honestly tired of passing the instance down and up whenever I need it without react knowing to re-render data and display new data - which is important for me too.
Steps that I have done:
It was easy to ignore the non-serializable error using
serializableCheck: false
:export default configureStore({
...
ANSWER
Answered 2022-Jan-11 at 13:15Simple: don't put it into Redux. Redux is made for data, not for arbirtary external libraries/dependency injection.
If that value will never change after initialization and you do the initialization outside of React, just put it into a global variable that is exported.
If that value will change over time, you should use the Dependency Injection mechanism of React for it: Context. This is really what context is made for - not sharing state values, but global dependencies.
QUESTION
I am trying to build react prod docker container with Azure DevOps pipelines. After I upgrade my build environment and code, Pipeline failed. After some research I add "--node-flags --max-old-space-size=8192" statement my build command. But it didn't matter. I also try tried relevant node containers for a build, it didn't work.
...ANSWER
Answered 2021-Jul-04 at 12:19I was aware that the "--max-old-space-size=8192" parameter does not pass to build. So I dedided to add ENV in Dockerfile like " ENV NODE_OPTIONS="--max-old-space-size=8192"". Finally my Dockerfile transformed to:
QUESTION
I'm trying to figure out how to configure redux persist in my application. I get a "'persistor' is not defined" in my react index.js file. I just need to persist a user_id so that when the page refreshes the data that is fetched on component did mount doesn't get lost.
this is my store.js file
...ANSWER
Answered 2021-Apr-13 at 05:50The store
you're importing is a function that should be fired to get the actual store
along with the persistor
.
Refactor your store import to look like this
QUESTION
With Redux Promise Middleware, we write action like this:
...ANSWER
Answered 2020-Oct-27 at 12:46Redux promise middleware follows the "Flux Standard Action" (FSA) spec.
You can use the meta
property to include additional data in the action:
QUESTION
I just upgraded my react app to include the newest react router v5.2 in order to get the useHistory hook. Things worked fine until I restarted for the first time next morning. Now when I use f5 to start a debugging session I get an exception in a node-modules file named json3. (BTW, the app runs okay in the browser after yarn start.) The exception is "SyntaxError: Unexpected token in JSON at position 1". The code is line 186 in json3.js:
...ANSWER
Answered 2020-Sep-05 at 01:47Because of the conflicts I caused by upgrading my node_modules without regard to breaking changes (dumb I know), I was only able to fix this problem by starting over. I made another create-react-app, copied my package.json (with the corrected version numbers), ran yarn install, then copied over all my program data: src, .vscode, .eslintrc, etc, etc. With a few easy fixes, this worked. No exceptions deep in the node_modules.
QUESTION
I am seeing this issue 100% of the attempts at building webpack for production.
I've tried the approach mentioned on the other similar StackOverflow issues which is NODE_OPTIONS=--max_old_space_size=8192
my build command is:
...ANSWER
Answered 2020-Jul-30 at 14:16If your build takes longer than 10m without output this will happen.
You can use travis_wait
to print something to the console each minute, as per the docs: https://docs.travis-ci.com/user/common-build-problems/#build-times-out-because-no-output-was-received
Just travis_wait {your_command}
and you should be good to go.
Be aware that your build taking longer than 10m could be a indicator of a more complicated underlying problem/freeze.
QUESTION
I'm using the slices
feature of Redux Toolkit. As you may know, one slice returns an action
for every created reducer
.
I want to use the redux-promise-middleware
library, which for a given ACTION_TYPE
, it creates three possible new actions: ACTION_TYPE_FETCHING
, ACTION_TYPE_FULFILLED
, and ACTION_TYPE_REJECTED
. How do I handle this from the point of view of the slices
?
ANSWER
Answered 2020-May-05 at 13:53You'd need to add the expected action types to the extraReducers
section of createSlice
, like:
QUESTION
After a bunch of lines of code in the Expo/React Native Project, I wanted to test it on my iPhone. The first minute went well, until I got an unexpected Error Message:
Error: Exception in HostFunction: Malformed calls from JS: field sizes are different.
I had the Error during development several times because I stored a NaN somewhere accidentally. So far so good, happy that the Error Message came directly, I knew where to start to get rid of it.
Following is the Error:
...ANSWER
Answered 2020-Feb-17 at 19:29If you are fetching this data on every app start and you don't care if this data is persisted offline, I would recommend using blacklist
configuration of redux-persist
to blacklist such large states from persisting.
If this state is static and not changing - you could also just write it to a JSON file and use that file as data source then.
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