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https://github.com/felipeoriani/rinha-backend-24q1
2024 - The proposed of Rinha de Backend 2024 Q1 was concurrency management for a bank statements and transactions scenario. This repository shows my code written in C# and Postgres database to handle it. It is not for production, just fun.
https://github.com/felipeoriani/rinha-backend-24q1
asp-net-core backend backend-api concurrency csharp dotnet dotnet-core performance
Last synced: 18 days ago
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2024 - The proposed of Rinha de Backend 2024 Q1 was concurrency management for a bank statements and transactions scenario. This repository shows my code written in C# and Postgres database to handle it. It is not for production, just fun.
- Host: GitHub
- URL: https://github.com/felipeoriani/rinha-backend-24q1
- Owner: felipeoriani
- License: mit
- Created: 2024-03-06T12:12:58.000Z (11 months ago)
- Default Branch: main
- Last Pushed: 2024-03-09T13:13:05.000Z (11 months ago)
- Last Synced: 2024-11-24T15:09:03.833Z (3 months ago)
- Topics: asp-net-core, backend, backend-api, concurrency, csharp, dotnet, dotnet-core, performance
- Language: C#
- Homepage:
- Size: 21.5 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Rinha de Backend 2024 Q1 - felipeoriani
`pt-BR`: Este repositório consiste em apresentar o código da minha participação na [Rinha de Backend](https://twitter.com/rinhadebackend) 2024 Q1 origanizada pelo [@zanfranceschi](https://twitter.com/zanfranceschi). Nesta edição o tema foi o gerenciamento de concorrência e tendo como tópico transações bancárias seguindo alguns critérios (exemplo: `1.5` de CPU e `550Mb` de RAM para toda a infraestrutura). Você consegue saber mais sobre os detalhes do projeto diretamente no [Repositório da Rinha](https://github.com/zanfranceschi/rinha-de-backend-2024-q1), sendo que [neste link](https://github.com/felipeoriani/rinha-de-backend-2024-q1) você encontra o meu fork.
`en-US`: This repository shows the code from my participation in the [Rinha de Backend](https://twitter.com/rinhadebackend) 2024 Q1 organized by [@zanfranceschi](https://twitter.com/zanfranceschi). In this edition the topic was concurrency management on banking transactions following some criterias (e.g.: `1.5` cpu and `550Mb` ram for all the infrastructure). You can find out more about on [Rinha de Backend repository](https://github.com/zanfranceschi/rinha-de-backend-2024-q1), where in [this link](https://github.com/felipeoriani/rinha-de-backend-2024-q1) you will find my fork.
:heavy_check_mark: _Rinha de Backend_ means something like _Backend Fight_.
⚠️ _This code was designed speficically for the Rinha de Backend and it is not recommened to be part of any prod/final solution. It is just fun!_
💻 Lessons Learnt:
- Windows dynamic ports can block the Load Testing after some time;
- Handle concurrency in Postgres with `pg_advisory_xact_lock` vs `FOR UPDATE`;
- `ConnectionPool` configurations for `Postgres`, super flexible;
- `NpgsqlDataSource` singleton instance can be helpful in this kind of scenario;
- `Nginx` as Load Balancer is really good and get the job done;
- Optimizations in `csproj` for compilations including `Native AOT` in .NET 8 and speed up the process and the runtime;
- Linux Ubuntu setup for .NET (I used to use just Windows);
## Stack:
## 🏃 How to Run
Build the docker image for the project and up all the dependencies on the `docker-compose.yml` including `Postgres` database and `Nginx` load balancer including all its configurations.
```
sh up.sh
```
After the load balancer will be listening on `9999` port, and you can request to it as an example:
```
GET http://localhost:9999/clientes/1/extrato
```
or
```
POST http://localhost:9999/clientes/1/transacoes
```
using the request body:
```
{
"valor": 1000,
"tipo" : "c",
"descricao" : "descricao"
}
```
Finally, you can down all the resources and destroy the container image by running:
```
sh down.sh
```
## 🧪 Load Testing Results
Once I was developing this project a Load Test using Gatling ran in order to evaluate the infrastructure. You can check the results on the image bellow:
Thank you.
- https://github.com/felipeoriani
- https://www.linkedin.com/in/felipeoriani/
- https://twitter.com/felipeoriani