In past article I’ve written about some basic stuff we can do with Ethereum client Parity – like transfering Ethers, creating multi-signature wallet and even writing our own contracts. Now I’ll continue with writing our very own Distributed Application ( Dapp). Continue reading Writing Distributed Application for Ethereum
Tag Archives: Aurelia
Next Adventure in Aurelia – Autocomplete Component
As I have written in this post I’m slowly getting into Aurelia Web UI framework. Recently I needed an autocomplete component. My requirements were:
- get suggestions from server via REST API (JSON payload)
- simple, yet flexible (value can be calculated from received suggestions)
- flexible ways to display suggestions (ideally provide a template to display suggestions values)
- suggest values as one types matching starting letters (case insensitive and diacritics insensitive)
- cache server responses for efficiency
- can use both mouse and keys (arrows + enter) to select suggestion
I’m sure that existing autocomplete components like typeahead or JQuery UI Autocomplete would serve my purpose quite well. It’s fairly easy to integrate existing components from other frameworks into Aurelia (see this post for instance). But I decided to create my own, using only Aurelia (and a bit of JQuery – but it can be easily rewritten in pure DOM API – JQuery is used just for convenience, because it’s anyhow used in Aurelia skeleton app). I though it would be nice learning exercise (and it really was) and also we programmers (especially leisure programmers like myself) do like to reinvent the wheel, right? (But it’s not always bad idea – image world when only one type of wheel exists – by recreating existing solutions, improving them, changing them we can also achieve progress – Web UI frameworks themselves are good example of such progress). I’d like to share my experiences further in this article. Continue reading Next Adventure in Aurelia – Autocomplete Component
Starting with Aurelia – Pagination with Back and Sort
I do not like very much programming of User Interfaces (UIs) and frankly spoken I’m not very good at that, but alas sometimes UIs are necessary so I have to try my best. Many recent applications use web browser as UI, and situation here is quite messy ( see this nice article about JS Frameworks Fatigue). Last time I was involved with web UIs I had utilized Backbone with Django based RESTful server. Recently I’ve decided to rewrite MyBookshelf application with modern technonogies (it’s about 8 years old, which is something like prehistory considering changes in web development). New architecture should be based on RESTful services and Single Page Application (SPA) relying on recent browser capabilities. I’ve have been looking around and found that Backbone is already almost forgotten and we have two new stars on the stage – AngujarJS and React – I have very quickly looked at both and finally decide for another framework Aurelia. Continue reading Starting with Aurelia – Pagination with Back and Sort