DEV Community: Matteo Rigoni

Convert complex form into html

Matteo Rigoni — Sat, 13 Jan 2024 16:24:39 +0000

Hi, i have to migrate a desktop application to cloud, basically i've to rewrite many window forms in html in a Angular application (using basic html, css, bootstrap).

I need a tool to convert automatically these forms, becasuse they are a huge number and every form ha a lot of fields. Each form has 100 rows with same height, each row has different elements (lables,input,line,titles,icons) without any common schema. I've to preserve every alignment in the html page (for example a text input on line 3 should be aligned with another element on row 66).
The final html shouldn't be responsive, there shouldn't any kind of wrapping, only if possibile a "zoom" on all elements where resizing the page, at some point it will appear scrollbar.
After some experiments, the only way i found to do this conversion, is mapping each form's row to a div (100vw). Then in each div, i'm evaluating different strategies:

using absolute position with percentage. The only issue is that i have to specify a fixed height, is there a workaround to avoid this? Also using dynamic font-size i don't have a fixed height in all elements..

<div class="container-fluid"> <div style="height:25px; position:relative; font-size:0.8vw;"> <div style="position:absolute;left:0%;width:12%;height:100%">FIRST TEXT</div> <div style="position:absolute;left:55%;width:15%;">Second text</div> <input style="position:absolute;left:71%;width:5%;" type="text" /> </div> </div>
In each div i put a table with columns having fixed width in percentage (but it's a nightmare deal with different padding and margins in each cell)
In each div i use display:grid, doing something like the previous point (but it's a nightmare deal with different padding and margins in each cell)
In each div i use absolute positions and width in px, then using media queries i do a "scale" on all elements..it works but i know that is not a best practice, right?

Which solution is better for you? Do you have other ideas to do this strange conversion?
(i exlude all stuff like grid system, flex because i have to keep the structure one to one and in source files i have only absolute coordinates without any kind of container's concept to aggregate elements)

Thanks

Alternative to Hangfire in Azure world

Matteo Rigoni — Sat, 08 Jul 2023 14:28:32 +0000

i'm using from several time Hangfire with SQL and i don't have any problem.

Classic use cases that i will have are:

From a web app, user enqueue an operation and can check all pending operations. Where operation ends he has a notification via SignalR and can check output of a job. An example is the same Azure Portal, where every operation is enqueued and status is visible in the bell on top right.
Recurring job that runs every few seconds to perform scheduled operations indipendent from user's interaction. Jobs must have a lock concept, so until one is running, nothing else of the same type should start for that user.
Recently i'm moving to Azure, using k8s for some microservices. I think that i will use a microservice with Hangfire, do you thiks that Hangfire and microservices can coexist?

If i don't use Hangfire i have to replicate something similar using Azure Function (high cost), manage a storage for job's state, so will worth it using something different?

How do you manage these scenario in microservice architecture? Bye

I'm working on running Hangfire in a dockerized microservice.

Temporary files in docker and k8s

Matteo Rigoni — Thu, 06 Jul 2023 19:02:45 +0000

Hi all, i've a container running code in .NET 6, dockerized and running on Azure k8s. Inside this container, i handle a message from a topic of a Service Bus. It should manage aroung 20k messages a day.

Scenario description:
I have to call an .exe (size around 100 MB) that take in input a file and generate a response in a given physical subfolder on disk. The response include two files, that i upload then to a blob storage. Finally i delete these temporary files on disk. The execution of the .exe will be of 1 minute.

Question:
Where should i store the exe? Its content will change 2-3 times a year (so few times). I was thinking to include it in the docker image, for example in "\app\resources" and then call it creating a random temp folder in the same path, one for each execution. In alternative i was thinking to Azure File Share (but i'm concerned about the traffic cost). The data is temporary, so if the pod goes down, i don't care about them.

I've already read about volumes in Docker, but i don't find any question/topic that fit my problem, so i'm searching for some advices.

Thanks

Maximize performance of api

Matteo Rigoni — Fri, 18 Jun 2021 06:33:22 +0000

i have to implement a api in net core that accept items (with 5 simple fields), check if they exists on a SQL server database and insert/update them. Every user will call this api 2-3 times a day and needs to pass about 500 items.

What is best approch in terms of performance (ti not overload my system): A) Accept a compressed JSON, make 500 read and write sequentually and return status B) Accept a single item and tell the user to call it for each item (so about 500 x 3 times a day) C) Accept a compressed JSON, return an operation id, do operations in an asyncronous task and return result in a different api through the operation id.

Thanks