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1650612973

District UI Module for Handling Web3 instance

district-ui-web3

Clojurescript re-mount module, that takes care of setting up and providing web3 instance.

Installation

Add [district0x/district-ui-web3 "1.2.0"] into your project.clj
Include [district.ui.web3] in your CLJS file, where you use mount/start

API Overview

Warning: district0x modules are still in their early stages, therefore the API may change in the future.

district.ui.web3

This namespace contains web3 mount module. Once you start mount, it'll take care of web3 initialisation and will put results into re-frame db.

You can pass following args to initiate this module:

  • :url Url of Ethereum node to connect to
  • :wait-for-inject-ms Sometimes web3 isn't injected quickly enough by browser extension before an app starts. If it's not, this module will try to load it on second try after given milliseconds. Default: 1500
  (ns my-district.core
    (:require [mount.core :as mount]
              [district.ui.web3]))

  (-> (mount/with-args
        {:web3 {:url "https://mainnet.infura.io/"}})
    (mount/start))

district.ui.web3.subs

re-frame subscriptions provided by this module:

::web3

Returns web3 instance.

::web3-injected?

Returns true if web3 was injected by browser extension, such as MetaMask.

::web3-legacy?

Returns true if legacy web3 is available.

(ns my-district.home-page
  (:require [district.ui.web3.subs :as web3-subs]
            [re-frame.core :refer [subscribe]]))

(defn home-page []
  (let [web3-injected? (subscribe [::web3-subs/web3-injected?])]
    (fn []
      (if @web3-injected?
        [:div "This browser injected web3 instance"]
        [:div "This browser didn't inject web3 instance"]))))

::web3-legacy?

Returns true if the current browser uses the legacy method of retrieving the web3 instance. This is true for browsers that are not implementing EIP-1102.

district.ui.web3.events

re-frame events provided by this module:

::create-web3-legacy [opts]

Will create and save web3 instance, either by using one injected from a browser extension (e.g MetaMask), if available, or will create one from given :url. Normally you don't need to use this event, as it's fired by ::start while in legacy-mode.

::create-web3 [opts]

This will first call window.ethereum.enable() and depending on the extension's implementation, will prompt the user if they would like to allow the ethereum provider. If accepted, it will create and save the web3 instance (e.g MetaMask).

If the browser does not support EIP-1102, or the ethereum provider is denied, it will fallback to using ::create-web3-legacy which will attempt to instantiate a personal web3 instance.

::web3-created [opts]

Event fired when web3 is created. Use this event to hook into event flow from your modules.
One example using re-frame-forward-events-fx may look like this:

(ns my-district.events
    (:require [district.ui.web3.events :as web3-events]
              [re-frame.core :refer [reg-event-fx]]
              [day8.re-frame.forward-events-fx]))
              
(reg-event-fx
  ::my-event
  (fn []
    {:register :my-forwarder
     :events #{::web3-events/web3-created}
     :dispatch-to [::do-something]}))

district.ui.web3.effects

re-frame effects provided this module:

::authorize-ethereum-provider

EIP-1102 provides web3 providers with the ability to enable a privacy-mode. The ::authorize-ethereum-provider effect is necessary to ask for the correct permissions while users have privacy-mode enabled.

Keyword Parameters

:on-accept - If the ethereum provider is accepted, dispatches the provided event.

:on-reject - If the ethereum provider is rejected, dispatches the provided event.

:on-error - If there is no ethereum provider, and no legacy provider, dispatches the provided event

:on-legacy - If there is no ethereum provider, and a legacy provider, dispatches the provided event

Example

(reg-event-fx
  ::init-web3
  interceptors
  (fn [{:keys [:db]} [{:keys [:url] :as opts}]]
    {::effects/authorize-ethereum-provider
     {:on-accept [::create-web3]
      :on-reject [::create-web3-legacy opts]
      :on-error [::create-web3-legacy opts]
      :on-legacy [::create-web3-legacy opts]}}))

Notes

  • The ::authorize-ethereum-provider is automatically dispatched within the re-mount cycle.

district.ui.web3.queries

DB queries provided by this module:
You should use them in your events, instead of trying to get this module's data directly with get-in into re-frame db.

web3 [db]

Returns web3 instance.

web3-injected? [db]

Returns true if web3 was injected by browser extension, such as MetaMask.

web3-legacy? [db]

Returns true if legacy web3 is available.

(ns my-district.events
    (:require [district.ui.web3.queries :as web3-queries]
              [re-frame.core :refer [reg-event-fx]]))

(reg-event-fx
  ::my-event
  (fn [{:keys [:db]}]
    (if (web3-queries/web3-injected? db)
      {:dispatch [::do-something]}
      {:dispatch [::do-other-thing]})))

web3-legacy? [db]

Returns true if the browser is using the legacy implementation of resolving an ethereum provider. Note that this can mean that the browser does not have an extension that resolves an ethereum provider.

assoc-web3 [db {:keys [:web3 :web3-injected? :web3-legacy?]}]

Associates this module and returns new re-frame db.

Development

lein deps

# To run tests and rerun on changes
lein doo chrome tests

Download Details:
Author: district0x
Source Code: https://github.com/district0x/district-ui-web3
License: EPL-1.0 License

#blockchain   #cryptocurrency #district0x   #web3   #clojure 

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District UI Module for Handling Web3 instance

UI Designer Vs UI Developer

Comparing UI Designers to UI Developers
User interface (UI) designers and developers are directly responsible for the consumer base’s experience using an application or software program. Designers specifically deal with the visual aspects of the program, while developers deal with the overall performance and functionality of the software.
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UI designers and developers work in tandem to create a program or application that is easy to understand and operate by their customers or clients. Though there may be some occasional overlap in the duties within the workplace, their designated duties are quite clear and are dependent on the other. UI developers are responsible for the coding and programming in the conception of an application, specifically with regard to how the software operates at the hands of the user. UI designers are in charge of applying their understanding of the program operations to create a visual experience that is most compatible to the program’s functionality.

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Other responsibilities of UI designers are as follows:

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UI Developers
User interface developers are responsible for the functional aspects of a software application, coding and programming throughout all stages of development with the clients and potential users of the application in mind. They usually begin the process by incorporating the clients’ expressed needs into a layout that is modified as progress is made. Once they get the general functions working, the designers will incorporate their visual conceptions into the layout to ensure that the first draft is operational. If there are any bugs or malfunctions to fix, the developers must troubleshoot and patch the application. While doing these tasks, they must take detailed notes of all the progress made to streamline any future updates made to the program, functionally or aesthetically. Learn more from ui design course

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The UI designer then takes the wireframes and makes them beautiful, also ensuring that the workflow of the product is communicated well to the user. He will add the pixel level details to the wireframes. What should be the font used, what should be the background image, do we need a background image, what should be the foreground color, how big should be the submit button, does it make more sense to have the menu at the bottom of the screen, what should the logo look like? The job of a UI designer is answering all these and thereafter delivering static mockups, using may be Photoshop, Invision and many other design tools.

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UI (USER INTERFACE)

UI or User Interface is the interface that is the access point where users interact with computers. It is also a way through which users can interact with a website or an application. UI design typically refers to graphical user interfaces but also includes others, such as voice-controlled ones, a keyboard, a mouse, and the appearance of a desktop.

UI design considers the look, feel, and interactivity of the product. Users judge the design on the basis of usability and likeability very swiftly, so a designer will focus on making each visual element look pleasurable and meaningful. The designer has to consider the color scheme, font imagery, spacing, responsiveness. Also, understanding the user’s context and mindset is crucial while making design decisions.

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Often confused a lot and understood one and the same thing terms UI and UX are related but not the same.

UX or User Experience describes the overall experience of the product and the UI only considers the appearance of the product. A UX designer’s work is to make the product usable and useful. UX means focusing on the whole user journey and the steps a user will take to attain a goal. UX designers will make wireframes without making any detailed design decisions for each wireframe. Once the wireframes are final they are handed over to UI designers to start adding emotions to it through design and animations.

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Best of Crypto

Best of Crypto

1650612973

District UI Module for Handling Web3 instance

district-ui-web3

Clojurescript re-mount module, that takes care of setting up and providing web3 instance.

Installation

Add [district0x/district-ui-web3 "1.2.0"] into your project.clj
Include [district.ui.web3] in your CLJS file, where you use mount/start

API Overview

Warning: district0x modules are still in their early stages, therefore the API may change in the future.

district.ui.web3

This namespace contains web3 mount module. Once you start mount, it'll take care of web3 initialisation and will put results into re-frame db.

You can pass following args to initiate this module:

  • :url Url of Ethereum node to connect to
  • :wait-for-inject-ms Sometimes web3 isn't injected quickly enough by browser extension before an app starts. If it's not, this module will try to load it on second try after given milliseconds. Default: 1500
  (ns my-district.core
    (:require [mount.core :as mount]
              [district.ui.web3]))

  (-> (mount/with-args
        {:web3 {:url "https://mainnet.infura.io/"}})
    (mount/start))

district.ui.web3.subs

re-frame subscriptions provided by this module:

::web3

Returns web3 instance.

::web3-injected?

Returns true if web3 was injected by browser extension, such as MetaMask.

::web3-legacy?

Returns true if legacy web3 is available.

(ns my-district.home-page
  (:require [district.ui.web3.subs :as web3-subs]
            [re-frame.core :refer [subscribe]]))

(defn home-page []
  (let [web3-injected? (subscribe [::web3-subs/web3-injected?])]
    (fn []
      (if @web3-injected?
        [:div "This browser injected web3 instance"]
        [:div "This browser didn't inject web3 instance"]))))

::web3-legacy?

Returns true if the current browser uses the legacy method of retrieving the web3 instance. This is true for browsers that are not implementing EIP-1102.

district.ui.web3.events

re-frame events provided by this module:

::create-web3-legacy [opts]

Will create and save web3 instance, either by using one injected from a browser extension (e.g MetaMask), if available, or will create one from given :url. Normally you don't need to use this event, as it's fired by ::start while in legacy-mode.

::create-web3 [opts]

This will first call window.ethereum.enable() and depending on the extension's implementation, will prompt the user if they would like to allow the ethereum provider. If accepted, it will create and save the web3 instance (e.g MetaMask).

If the browser does not support EIP-1102, or the ethereum provider is denied, it will fallback to using ::create-web3-legacy which will attempt to instantiate a personal web3 instance.

::web3-created [opts]

Event fired when web3 is created. Use this event to hook into event flow from your modules.
One example using re-frame-forward-events-fx may look like this:

(ns my-district.events
    (:require [district.ui.web3.events :as web3-events]
              [re-frame.core :refer [reg-event-fx]]
              [day8.re-frame.forward-events-fx]))
              
(reg-event-fx
  ::my-event
  (fn []
    {:register :my-forwarder
     :events #{::web3-events/web3-created}
     :dispatch-to [::do-something]}))

district.ui.web3.effects

re-frame effects provided this module:

::authorize-ethereum-provider

EIP-1102 provides web3 providers with the ability to enable a privacy-mode. The ::authorize-ethereum-provider effect is necessary to ask for the correct permissions while users have privacy-mode enabled.

Keyword Parameters

:on-accept - If the ethereum provider is accepted, dispatches the provided event.

:on-reject - If the ethereum provider is rejected, dispatches the provided event.

:on-error - If there is no ethereum provider, and no legacy provider, dispatches the provided event

:on-legacy - If there is no ethereum provider, and a legacy provider, dispatches the provided event

Example

(reg-event-fx
  ::init-web3
  interceptors
  (fn [{:keys [:db]} [{:keys [:url] :as opts}]]
    {::effects/authorize-ethereum-provider
     {:on-accept [::create-web3]
      :on-reject [::create-web3-legacy opts]
      :on-error [::create-web3-legacy opts]
      :on-legacy [::create-web3-legacy opts]}}))

Notes

  • The ::authorize-ethereum-provider is automatically dispatched within the re-mount cycle.

district.ui.web3.queries

DB queries provided by this module:
You should use them in your events, instead of trying to get this module's data directly with get-in into re-frame db.

web3 [db]

Returns web3 instance.

web3-injected? [db]

Returns true if web3 was injected by browser extension, such as MetaMask.

web3-legacy? [db]

Returns true if legacy web3 is available.

(ns my-district.events
    (:require [district.ui.web3.queries :as web3-queries]
              [re-frame.core :refer [reg-event-fx]]))

(reg-event-fx
  ::my-event
  (fn [{:keys [:db]}]
    (if (web3-queries/web3-injected? db)
      {:dispatch [::do-something]}
      {:dispatch [::do-other-thing]})))

web3-legacy? [db]

Returns true if the browser is using the legacy implementation of resolving an ethereum provider. Note that this can mean that the browser does not have an extension that resolves an ethereum provider.

assoc-web3 [db {:keys [:web3 :web3-injected? :web3-legacy?]}]

Associates this module and returns new re-frame db.

Development

lein deps

# To run tests and rerun on changes
lein doo chrome tests

Download Details:
Author: district0x
Source Code: https://github.com/district0x/district-ui-web3
License: EPL-1.0 License

#blockchain   #cryptocurrency #district0x   #web3   #clojure