frontend | Frontend of online learning environment Source Academy @ | Learning library

by source-academy TypeScript Version: v1.5.0 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | frontend Summary

frontend is a TypeScript library typically used in Tutorial, Learning applications. frontend has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

The Source Academy (is an immersive online experiential environment for learning programming. It is developed by a community of learners (also called "Source Academy") who use the book Structure and Interpretation of Computer Programs, JavaScript Adaptation (SICP JS). This repository houses the sources for the frontend of the Source Academy, written in ReactJS with Redux.

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Quality

Security

License

Reuse

Support

frontend has a low active ecosystem.

It has 79 star(s) with 128 fork(s). There are 8 watchers for this library.

It had no major release in the last 12 months.

There are 108 open issues and 573 have been closed. On average issues are closed in 78 days. There are 14 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of frontend is v1.5.0

Quality

frontend has no bugs reported.

Security

frontend has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

frontend is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

frontend releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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frontend Key Features

No Key Features are available at this moment for frontend.

frontend Examples and Code Snippets

No Code Snippets are available at this moment for frontend.

Community Discussions

Trending Discussions on frontend

Do Vue.js render functions allow return of an array of VNodes?

Proper CORS headers in fetch react

Convert ckeditor Data to html

Firebase Real Time Database Validate Number Increment

Azure B2C multiple different customer custom policy

How to call Django API with Javascript with Authenticated user in Django

External Css or Assets from local storage not working on Node Application

UndeclaredThrowableException for custom Exceptions

ECS - communication between tasks

Building and Deploying depending on front or backend changes in Gitlab

QUESTION

Do Vue.js render functions allow return of an array of VNodes?

Asked 2021-Jun-15 at 18:46

I am working on extending a Vue.js frontend application. I am currently inspecting a render function within a functional component. After looking over the docs, I had the current understanding that the render function within the functional component will return a single VNode created with CreateElement aka h. My confusion came when I saw a VNode being returned as an element in an array. I could not find any reference to this syntax in the docs. Does anyone have any insight?

...

ANSWER

Answered 2021-Jun-15 at 15:37

It seems this was implemented in:

https://github.com/vuejs/vue/commit/c7c13c2a156269d29fd9c9f8f6a3e53a2f2cac3d

This was a result of an issue raised in 2018 (https://github.com/vuejs/vue/issues/8056) , because this.$scopedSlots.default() returned both a VNode or an array of VNodes depending on the content.

The main argument was that this is inconsistent with how regular slots behave in render functions, and means any render function component rendering scoped slots as children needs to type check the result of invoking the slot to decide if it needs to be wrapped in an array

So Evan comments on the issue thread here, explaining that this.$scopedSlots.default would always return Arrays beginning v2.6 to allow for consistency, but to avoid breaking changes for how $scopedSlots was being used, the update would also allow return of an Array of a single VNode from render functions as well.

Source https://stackoverflow.com/questions/67987315

QUESTION

Proper CORS headers in fetch react

Asked 2021-Jun-15 at 14:43

I have my own API wrote in Play Scala and frontend client wrote in react.js I can't send logout request (I use OAuth2), because i get error with cors headers. I tried to fix it but i can't.

My react fetch method:

...

ANSWER

Answered 2021-Jun-15 at 14:43

allowedOrigins = ["http://localhost:3000"] should coresponds with your frontend app.Check all routes. BTW: If it's a public API you can turn off this filter.

Source https://stackoverflow.com/questions/67985331

QUESTION

Convert ckeditor Data to html

Asked 2021-Jun-15 at 14:37

I'm building a vue app where user input data that I store in mongo database. One of the form elements is a ckeditor. When the user inputs data everything works fine.
Now the problem is when I make an API call to get the ckeditor text that user did input, I receive plein string text that I can't convert to html element.

Here's my code

...

ANSWER

Answered 2021-Jun-15 at 14:37

You can use the v-html directive to output real HTML:

Source https://stackoverflow.com/questions/67984961

QUESTION

Firebase Real Time Database Validate Number Increment

Asked 2021-Jun-15 at 14:34

I'm using Firebase Real-Time Database as backend. I want it to increase by 1 max for each request For example:

...

ANSWER

Answered 2021-Jun-15 at 14:34

To validate that the new value is one higher than the existing value:

Source https://stackoverflow.com/questions/67985577

QUESTION

Azure B2C multiple different customer custom policy

Asked 2021-Jun-15 at 14:23

I'm trying to figure out what the best option to solving this problem. I have an frontend application that will cater for both normal user and different company users. I want the normal user to only see the email and password fields while the company user see their respective IDP without seeing other company's IDPs.

At first, I was thinking of using a custom policy to achieve this. Basically I'll have a custom claim in the outputclaims that will specify the domain and inside my orchestration I'll have a precondition if it doesn't exist then use email and password step and skip everything but if it exist, then skip the email and password and match it to an idp selection step (if domain == companyX) use CompanyX's IDP (GSuite) or (if domain == companyY) use CompanyY's Idp (AAD). So when the company users gets to the selection page they can only see their IDP and not the others. I'm not sure how scalable that would be though.

The second option I thought was to have one ROPC policy for the normal users and use another policy for IDP selection but this time passing a domain_hint when user attempts to login in. The reason why I would go with ROPC on this option is to give user consistent user experience, normal user sees fields on the page while company user sees a single IDP button that directly sign through the domain_hint directly (Sign-Direct). Essentially having all the UI controlled by me instead of azure.

Example:

domain_hint=CompanyX - I would have a TechnicalProfile with the domain CompanyX (GSuite)
domain_hint=CompanyY - I would have a TechnicalProfile with the domain CompanyX (AAD)

Now this approach seem to be more intuitive but now my concern is that since ROPC uses Authorization Flow which contains refresh token while the Idp selection flow uses OpenIdConnect which doesn't contain refresh token (or at least managed by AzureB2C) it would screw up how I manage my tokens.

Is there a better way to implement this situation?

I feel like I'm missing something or I'm misinterpreting something.

...

ANSWER

Answered 2021-Jun-15 at 14:23

This sample shows how to implement your first option. The technique is called "home realm discovery". https://github.com/azure-ad-b2c/samples/tree/master/policies/home-realm-discovery-modern

Source https://stackoverflow.com/questions/67987782

QUESTION

How to call Django API with Javascript with Authenticated user in Django

Asked 2021-Jun-15 at 13:25

I'm using Django for Backend, PostgresSQL as DB and HTML, CSS and Javascript as Frontend. I am calling Django API via Javascript. Where user is adding a product to a cart, and I'm calling the cart with DRF to show all the data to the user. But problem is that, user can see all the data of other user. So, how can authenticated user can see his/her selected product on a cart.

Here is a detailed code:

views.py

adding product to cart

...

ANSWER

Answered 2021-Jun-15 at 13:25

you have to pass user id when you are calling ajax. If you are using GETmethod than pass user id in URL and access it via argument in your view for eg.

Source https://stackoverflow.com/questions/67984714

QUESTION

External Css or Assets from local storage not working on Node Application

Asked 2021-Jun-15 at 12:36

Created a server.js which indicates to index.html file.(server.js and index.html locates on the same folder). In that html I couldn't use any styling from external css file or any assests from local storage. But inline css & images from internet is working fine.

server.js

...

ANSWER

Answered 2021-Jun-15 at 12:36

All of your files are inside frontEnd folder. Like in here:

Also you don't serve static files anywhere in your code. It should be something like in the docs:

app.use(express.static('public'))

Source https://stackoverflow.com/questions/67986328

QUESTION

UndeclaredThrowableException for custom Exceptions

Asked 2021-Jun-15 at 10:54

I'm currently working on a project running a jboss backend server (server-ear:ear exploded artefact) and a java gui (java 11) as frontend.

The backend contains a java service bean which accesses a database server and throws a custom exception (extends exceptions), if the variable is not found. The GUI catches the custom exceptions with a try and catch block.

The code is build and run inside of Intellij + Maven.

If i try to execute the code following arrow pops up at runtime:

...

ANSWER

Answered 2021-Jun-15 at 10:54

So for anyone interested what the problem was:

Since we are using a custom logger (ServiceLoggingInvocationHandler) which try catched the exceptions of an invoke method, the catched exceptions were already wrapped with an invocation exception and were not the original exceptions. To solve the problem we needed to unwrap the exceptions again before forwarding them.

Since the logger was only used in debugging mode and only when specified the problem was only occurring for me.

Source https://stackoverflow.com/questions/67701079

QUESTION

ECS - communication between tasks

Asked 2021-Jun-15 at 09:03

I am trying to deploy 2 containers on 2 different tasks (1 container per task), one is my frontend and the other is my backend server. I am trying to figure out how to configure the communication between them.

I saw that a load balancer in a service is a good option. However, should I configure load balancer for my front end server and another one for my backend? Meaning each time I have public-facing services and private services I need 2 load balancers?

I would like to only expose my front-end to the public internet and my backend will remain private (although I make API requests to the outside world - probably need to configure outbound route too?).

I would highly appreciate any information.

...

ANSWER

Answered 2021-Jun-15 at 09:03

No you don't need a private LB for that. It is an option you can use but ECS has since introduced the concept of Service Discovery for back-end services. The idea is that your front end is exposed to your users via a standard LB (e.g. ALB) but services that are being called by the front end and that run behind the scene can be addressed using this service discovery mechanism (based on Route53/CloudMap).

You can see an example of this concept here. This CFN template gives you the details re how you can build this layout.

Source https://stackoverflow.com/questions/67975605

QUESTION

Building and Deploying depending on front or backend changes in Gitlab

Asked 2021-Jun-15 at 05:30

I'm starting to use gitlab CI/CD pipeline but have some doubts regarding the output of the building process if i was to have a project(Repo) and inside this project I have the front and backend separated by the project structure, ex:

CarProject

.gitlab-ci.yml

|__FrontEndCarProject

|__BackendCarProject

let's say that every time I change something in the frontend I would need to build it and deploy it to S3, but there is no need to build the backend (java application) and deploy it to elastic beanstalk (and vice versa for when i change the backend)..Is there a way to check where the changes have been made(FrontEndCarProject/BackendCarProject) using GitLab and redirect the .gitlab-ci.yml to a script file depending on if a have to deploy to S3 or elastic beanstalk?

Just trying

Note: another way is just to manually change the yml file depending on where i want to deploy..but is there a way to autodetect this and automated?

.gitlab-ci.yml

Just to get the idea, heres an example that would run in a linear way, but how can i conditionally build/deploy(depending on my front or backend)? should i keep them in different repos for simplicity? is it a good practice?

...

ANSWER

Answered 2021-Jun-15 at 05:30

If your frontend and backend can be built and deployed seperately, than you can use rules:changes to check if a change happened and need:optional to only deploy the respective built libraries.

Source https://stackoverflow.com/questions/67978663

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install frontend

It might take a couple of minutes for the server to start. In this edition, you will only see the Playground with all its tools, but no login options or homework submission features. If you wish to set up the GitHub or Google Drive integrations, copy the .env.example file as .env and refer to Setting up your environment below for the relevant configuration options.
Install the current LTS version of Node.js. The current version (usually the version one greater than the current LTS) may also work, but if you encounter issues, use the current LTS.
Clone this repository and navigate to it using "cd" in your command line or shell tool.
Run yarn install to install dependencies.
Run yarn run start to start the server at localhost:8000. It might take a couple of minutes for the server to start.
Point your browser to http://localhost:8000 to see your local Source Academy.
It might take a couple of minutes for the server to start.
Install the current LTS version of Node.js. The current version (usually the version one greater than the current LTS) may also work, but if you encounter issues, use the current LTS.
Clone this repository and navigate to it using "cd" in your command line or shell tool.
Run yarn install to install dependencies.
Copy the .env.example file as .env and set the necessary variables (refer below for more information)
Run yarn run start to start the server at localhost:8000. It might take a couple of minutes for the server to start.
The project requires some environment variables to be set to work properly. In the .env file a few things need to be set up:. Unless you need to use the shortener locally, you can leave these values blank. Otherwise, ask your backend engineer. If you are testing with a local backend, the values in .env.example match the default development configuration of the backend. Otherwise, your backend engineer should provide you with the configuration for the staging and/or production backend. n is an integer starting from 1. The numbers must be consecutive i.e. if you have 5 authentication providers, the numbers must be 1, 2, 3, 4, and 5. The following properties are used for the Playground Google Drive integration. You can leave them blank if you are not using or testing that feature locally. See here a guide on obtaining the above values from the Google API Console. The frontend can be configured to disable itself (based on user's system time) during certain periods e.g. during e-exams. Note that this is not foolproof, but it can be combined with other strategies e.g. taking down the frontend entirely (but this is needed to counteract the service worker).
REACT_APP_BACKEND_URL: The base URL of the backend. If you are testing with a local backend, the value in .env.example matches the default development configuration of the backend.
REACT_APP_USE_BACKEND: Set to false if not running together with the backend.
REACT_APP_MODULE_BACKEND_URL: The base URL from which Source modules are loaded. (This is a js-slang feature, but of course it has to be configured here.) You can just use the default value in development.
REACT_APP_SHAREDB_BACKEND_URL: The base URL of the ShareDB collaborative editor backend. The protocol must be HTTP or HTTPS (it will automatically be set to WS/WSS as appropriate). Must end in a trailing /.
REACT_APP_SICPJS_BACKEND_URL: The base URL from which SICP JS content is loaded.
REACT_APP_URL_SHORTENER_SIGNATURE: The API key for the YOURLS URL shortener.
REACT_APP_URL_SHORTENER_DOMAIN: The base URL of the YOURLS URL shortener. Unless you need to use the shortener locally, you can leave this blank. Otherwise, ask your backend engineer.
REACT_APP_OAUTH2_PROVIDERn: The provider ID of the nth authentication provider. This must match the backend configuration.
REACT_APP_OAUTH2_PROVIDERn_NAME: The name of the nth authentication provider shown on the login screen.
REACT_APP_OAUTH2_PROVIDERn_ENDPOINT: The authentication endpoint of the nth authentication provider.
REACT_APP_GOOGLE_CLIENT_ID: The OAuth2 client ID issued by Google.
REACT_APP_GOOGLE_API_KEY: The Picker API key issued by Google.
REACT_APP_GOOGLE_APP_ID: The project ID of the Google API project.
REACT_APP_DISABLEn_START: The time from which to disable the frontend.
REACT_APP_DISABLEn_END: The time until which to disable the frontend.
REACT_APP_DISABLEn_REASON: Optional. A reason shown for the disablement.
REACT_APP_DEPLOYMENT_NAME: The name of the Source Academy deployment. This will be shown in the /welcome route. Defaults to 'Source Academy'.
REACT_APP_PLAYGROUND_ONLY: Whether to build the "playground-only" version, which disables the Academy components, so only the Playground is available. This is what we deploy onto GitHub Pages.
REACT_APP_ENABLE_GITHUB_ASSESSMENTS: Whether to enable the GitHub Assessments feature. Off by default.
REACT_APP_SHOW_RESEARCH_PROMPT: Whether to show the educational research consent prompt to users. This is mainly for instructors using their own deployment of Source Academy @ NUS to disable this prompt.
There are a few additional environment variables that are used when building and deploying for production.
REACT_APP_VERSION: A version string shown in the console on app launch.
REACT_APP_ENVIRONMENT: An environment string. Currently it is only used to differentiate different deploys in Sentry.
REACT_APP_SENTRY_DSN: The Sentry DSN for error monitoring.
REACT_APP_SW_EXCLUDE_REGEXES: A JSON array of regexes as strings. The service worker will ignore paths matching any of these regexes. This is used in our GitHub Pages deploy so that it does not conflict with the subsites we host on GitHub Pages.
REACT_APP_CADET_LOGGER: Log server URL. To test with cadet-logger on localhost, set it to http://localhost:8001/assessment-logger.
REACT_APP_CADET_LOGGER_INTERVAL: The interval (in ms) that the frontend should upload logs.

Support

Refer to our issue tracker and contribute to any open issues you are able to spot there. If you have any new issues, please do post there as well. We welcome any form of contribution and are open to any new ideas you may have for the project!. To start contributing, create a fork from our repo and send a PR. Refer to this article for more information.

Find more information at: