teleren/devto huggingface dataset:
The Rise of P2P Crypto Exchange after the FTX Debacle
Tags: cryptocurrency, webdev, beginners, whitelabel
Published: 2023-12-14 09:46:10

The interest in decentralized crypto exchanges has increased rapidly after the [FTX crypto exchange debacle](https://www.nytimes.com/2022/11/14/technology/ftx-sam-bankman-fried-crypto-bankruptcy.html). They offer crypto investors greater control over their crypto assets. Businesses can launch their P2P (peer-to-peer) decentralized crypto exchange using [crypto exchange development services](https://blockchain.oodles.io/cryptocurrency-exchange-development/) offered by a crypto exchange development company. We examine a dependable, contemporary decentralised exchange (DEX) development in this piece. We will essentially look at the benefits and variables that contribute to the creation of a peer-to-peer decentralised cryptocurrency exchange.

Also, Explore | [Oodles Scaffold | White Label Crypto Exchange](https://blockchain.oodles.io/turnkey-cryptocurrency-exchange-software/)

## Peer-to-Peer (P2P) Crypto Trading
Peer-to-peer (P2P) cryptocurrency trading is a decentralised approach of exchanging cryptocurrencies that only uses software or a blockchain-based platform. In typical situations, intermediaries carry out trade and execute transactions. However, a [peer-to-peer crypto exchange](https://blockchain.oodles.io/blog/p2p-peer-to-peer-exchange-platform-development/) does not use intermediaries or third parties to monitor and enforce transactions.

Learn about the mechanisms and benefits of a P2P Crypto Exchange Platform. Read on to find out more — [P2P Crypto Exchange](https://blockchain.oodles.io/blog/rise-p2p-crypto-exchange-ftx/).
Hypervisors supported for Load Balancing
Published: 2023-12-14 09:41:55

🚀 Elevate Your Load Balancing with RELIANOID ADC! 🚀
Explore how RELIANOID ADC seamlessly integrates with various hypervisors, providing unmatched performance and resource optimization for load balancing. Deploy on the hypervisor of your choice and witness unparalleled efficiency!

Don't miss out on the future of virtualization! Read the full article now: 👉📖 https://www.relianoid.com/resources/knowledge-base/misc/hypervisors-available-for-load-balancing/ 
#Hypervisors #Virtualization #CloudComputing #TechInnovation #ITInfrastructure #DataCenter #CyberSecurity #TechNews #DevOps #InnovationInTech #DigitalTransformation #ITManagement #LoadBalancing #ITSecurity #CloudTech #VMware #MicrosoftHyperV #KVM #OracleVirtualBox #Proxmox #TechReads #LinkedInReads #TechnologyInsights
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/u0xsfsp3wfa7cyu5v8g9.jpg)
Non-GET Requests Returning 403 Error in Django Web Project
Published: 2023-12-14 09:22:29

During the development of a web project based on Django, I encountered a strange issue: all non-GET requests such as POST, PATCH, and DELETE that were previously working fine started returning a 403 error.

Here are the basic details:  
``` 
Django==4.0.10
djangorestframework==3.13.1
my restframework configuration in settings.py
```
```
REST_FRAMEWORK = {
    # "DEFAULT_PAGINATION_CLASS": "utility.rest_framework.paginations.Pagination",
    # "DEFAULT_PAGINATION_CLASS": "utility.rest_framework.paginations.PageNumberPaginationWithoutCount",
    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.LimitOffsetPagination",
    "PAGE_SIZE": 20,
    "DEFAULT_RENDERER_CLASSES": [
        # "rest_framework.renderers.JSONRenderer",
        "utility.rest_framework.renderers.CustomJSONRender",
        "rest_framework.renderers.BrowsableAPIRenderer",
    ],
    "DEFAULT_FILTER_BACKENDS": ["django_filters.rest_framework.DjangoFilterBackend"],
    "DEFAULT_PERMISSION_CLASSES": [
        "rest_framework.permissions.IsAuthenticated",
    ],
    "DEFAULT_AUTHENTICATION_CLASSES": [
        "rest_framework.authentication.BasicAuthentication",
        "rest_framework.authentication.SessionAuthentication",
    ],
}
```

My API views are based on either ModelViewSet or APIView. The endpoints were working correctly in the morning, but after fixing a few performance-related issues, all non-GET requests started returning a 403 error. I checked the middleware and the   restframework   configuration in settings, but didn't find any apparent issues.

While debugging the code, I discovered a method in the   rest_framework.views   module's   APIView   class with the following code:
```
def perform_authentication(self, request):
	"""
	Perform authentication on the incoming request.

	Note that if you override this and simply 'pass', then authentication
	will instead be performed lazily, the first time either
	  request.user   or   request.auth   is accessed.
	"""
	request.user
```
Every time I stepped into this method, the program would exit and raise a 403 error.

To resolve the issue, I tried a workaround by manually extracting the CSRF token from the cookie and adding it to the request header. This workaround solved the problem, so I created a   BaseAPIView   class and made all views inherit from it.

However, I'm still unsure about the root cause of the problem, which is quite frustrating.

The possible cause could be Django's CSRF protection mechanism, which requires including the CSRF token in every non-GET request. It's possible that in the morning, the CSRF token was automatically included somewhere, but the changes made later caused the CSRF token to be missing.

My solution of manually extracting the CSRF token from the cookie and adding it to the request header bypasses Django's CSRF protection mechanism. However, this approach is not recommended as it may introduce security vulnerabilities.

I would appreciate your help in understanding the reason behind this issue.
Lò nướng bánh mì công nghiệp chính hãng giá rẻ chất lượng cao
Published: 2023-12-14 09:36:44

https://lonuongbanhmi.com.vn/ Lò nướng bánh mì công nghiệp 6, 8, 16,24 khay chất lượng cao giá tốt ✔️Chính hãng ✔️Bảo hành lâu dài. 📞0961.65.2266 tư vấn miễn phí
28 Ng. 168 Đ. Nguyễn Xiển, Hạ Đình, Thanh Xuân, Hà Nội 10000
#lonuongbanhmi #lonuongbanhmicongnghiep #maynuongbanhmi #maynuongbanh #lobanhmi
Help a Dev Newbie! Seeking Tips to Boost my Instagram Follower Website
Tags: devcommunity, websitefeedback, uiux, instagrowth
Published: 2023-12-14 09:34:38

Hey fellow developers! ✌️

I'm a fresh-faced coder who just launched my first website, https://buyinstafollower.uk, for a client who sells Instagram followers. He loves the overall design and functionality, but we both agree it could be even more eye-catching and persuasive for potential customers.

Here's where you come in, my experienced coder comrades! **I'm humbly seeking your wisdom on how to level up my website** and make it irresistibly attractive to anyone looking to boost their Insta presence.

Specifically, I'm curious about:

Design tweaks: What visual elements could I add or adjust to grab attention and build trust? Think captivating images, clear CTAs, and a user-friendly interface.
Content magic: How can I make the website copy more persuasive and informative? Think highlighting benefits, addressing concerns, and using clear, concise language.
Conversion boosters: What features or functionalities could I implement to make it easier and more appealing for users to purchase followers? Think secure payment options, transparent pricing, and trust signals.
SEO savvy: Any hidden SEO gems I can sprinkle on the website to improve its organic reach? Think relevant keywords, optimized meta descriptions, and internal linking.
Bonus points: If you have any experience with similar websites in the "buy followers" space, I'd love to hear your insights on what worked well for them and what could be improved.

I'm open to all suggestions, no matter how big or small! Let's brainstorm and make this website a follower-generating powerhouse!

Feel free to share your thoughts in the comments below, or DM me for a deeper chat. I'm eager to learn and grow as a developer, and your collective wisdom will be invaluable.

**Thanks in advance, and happy coding!**

P.S. Don't forget to check out [https://buyinstafollower.uk](https://buyinstafollower.uk) and share your first impressions!
How to Improve Your ChatGPT Outputs Using Configuration Parameters
Tags: chatgpt, generativeai, books, python
Published: 2023-12-14 09:34:15

📚 Excited to share insights from my recent read! 🌟 David Clinton's "The Complete Obsolete Guide to Generative AI" from Manning Publications has been an eye-opener, especially diving into the second chapter.

Ever wondered about the key parameters shaping an AI model? This book delves deep into configuring them to match specific needs. Parameters like temperature, Top P value, frequency penalty, and presence penalty play a pivotal role in fine-tuning output.

Understanding and tweaking these settings can significantly impact ChatGPT's output. Setting parameters enables tailoring the output, whether you seek a more deterministic response closely linked to the input or desire a more creative and diverse output.

To get hands-on, we'll simulate a scenario extracted from my book Data Storytelling with Generative AI using Python and Altair.

Read the full article here 👇👇👇
[https://towardsdatascience.com/how-to-improve-your-chatgpt-outputs-using-configuration-parameters-0eebd575646e](https://towardsdatascience.com/how-to-improve-your-chatgpt-outputs-using-configuration-parameters-0eebd575646e)
You can upload any zip file to your server using any FTP or SFTP and need to install unzip.
Tags: devops, cloudcomputing
Published: 2023-12-14 09:28:34

You can upload any zip file to your server using any FTP or SFTP
and need to install unzip.

You need to install the unzip package. 

```
sudo apt-get install unzip

```
 

You may request an admin password and need to grant the Ubuntu package manager, called apt, to occupy additional disk space with programs. Enter the password and answer 'yes' when needed. After all the packets have been installed, type in a terminal:

```
unzip archive.zip 
```


If you want to extract the zip file to another folder, you will need to use the **-d** key followed by the directory path. Type: 

```
unzip file.zip -d destination_folder
```


for example:

```
unzip mysite.zip -d /var/www
```

will extract the contents of the archive mysite.zip to the folder /var/www. The directory path can be full or relative.

Here:
After coming to the directory where your zip file is uploaded path.
In: **/var/www/project "Folder"** code.zip is present 
Then run cmd: 

```
**/var/www/project#**:- unzip code.zip -d /var/www/project                                                                                           
```

## Make zip file

- npm install zip -g
```
zip -r newtest.zip /var/www/forntend/
```
Utilizando a AWS: Guia Prático para Implementar e Gerenciar Instâncias EC2
Tags: programming, cloud, aws, beginners
Published: 2023-12-14 09:26:35

A Amazon Web Services (AWS) é uma das plataformas de computação em nuvem mais amplamente utilizadas no mundo. Entre os diversos serviços oferecidos pela AWS, a Elastic Compute Cloud (EC2) é um dos pilares fundamentais. As instâncias EC2 proporcionam flexibilidade, escalabilidade e facilidade de uso para hospedar aplicativos e serviços na nuvem. Neste artigo, vamos explorar como utilizar a EC2, desde a criação até a administração básica de instâncias.

## O que é a EC2?

A Elastic Compute Cloud (EC2) é um serviço de computação em nuvem que permite aos usuários executarem máquinas virtuais na infraestrutura da AWS. As instâncias EC2 podem ser configuradas para atender às necessidades específicas de diferentes tipos de carga de trabalho, oferecendo uma variedade de tamanhos de instâncias e tipos de recursos.

## Passo 1: Acesso ao Console da AWS

Antes de começar, é necessário ter uma conta na AWS. Após criar uma conta, acesse o Console da AWS em [https://aws.amazon.com/](https://aws.amazon.com/).

## Passo 2: Navegação até a EC2

No Console da AWS, vá para o serviço EC2. Você pode encontrar o serviço EC2 na seção "Compute" ou usar a barra de pesquisa.

## Passo 3: Lançamento de uma Instância EC2

1. No painel de controle do EC2, clique em "Launch Instance" para iniciar o assistente de lançamento de instâncias.

2. Escolha uma imagem AMI (Amazon Machine Image) que atenda aos requisitos do seu aplicativo. As AMIs fornecem a base para as instâncias EC2.

3. Selecione o tipo de instância, que determina a capacidade computacional, memória e recursos de armazenamento associados à instância.

4. Configure as opções da instância, como o número de instâncias, a rede, a configuração de segurança e as chaves de acesso.

5. Revise suas configurações e clique em "Launch" para iniciar a instância.

## Passo 4: Conectar-se à Instância

1. Após lançar a instância, volte ao painel do EC2 e selecione "Instances" no menu lateral.

2. Selecione a instância recém-criada e clique em "Connect" para obter instruções sobre como se conectar à instância usando SSH (para instâncias Linux) ou RDP (para instâncias Windows).

## Passo 5: Gerenciamento de Instâncias

1. No painel do EC2, você pode gerenciar suas instâncias, como parar, reiniciar, terminar, associar IPs elásticos, entre outras ações.

2. Utilize os "Security Groups" para controlar o tráfego de rede para e a partir das suas instâncias.

3. Monitore o desempenho da instância utilizando métricas da AWS CloudWatch.

## Conclusão

Utilizar a EC2 na AWS proporciona uma poderosa infraestrutura de computação em nuvem. Este guia prático abordou os passos fundamentais, desde o lançamento até o gerenciamento básico de instâncias. Ao explorar mais recursos e serviços da AWS, você poderá otimizar a configuração de suas instâncias para atender às necessidades específicas do seu aplicativo. A AWS oferece extensa documentação e suporte para ajudá-lo a aprofundar ainda mais seus conhecimentos.
STL容器用法大全
Published: 2023-12-14 09:21:32

引出：freestanding和hosted的区别：一个是可以在没有OS的硬件上运行，一个则不行。
### vector
首先，模板类形式如下
```c++
template<
    class T,
    class Allocator = std::allocator<T>
> class vector; 
```
//默认自带一个allocator
这里面有pmr这个vector，来自C++17.std::pmr::vector
对于在C++20后引入的，除capacity(),operator[],push_back(),pop_back,
size(),剩下的成员函数全部都支持constexpr。
**对于constexpr**，就是在编译时就确定了值的变量或函数，可以用于增加程序性能。
对于vector的object，是不支持constexpr的，因为涉及到动态分配内存。
对于vector，中的模版参数，必须是要一定支持拷贝构造函数和赋值运算符函数的。
同时，vector中的模版参数也必须满足**Erasable**要求，Erasable要求指的是类型可以被删除，比如int、string就可以，但是int*就不可以。
其中Allocator的value_type必须和vector中声明的模版参数一致。
**Specializations**：其中，如果T是bool，那么会被优化为用bitset来存。

**迭代器失效**
其中对vector中元素只读是不会失效的
对于swap和swapend，是指向end()的迭代器失效.
对于clear、operator=、assign、reverse全部失效。
对于reserve、shrink_to_fit，如果容量发生改变，则全部失效。


#### 成员函数
1.assign和assign_range
```c++
vector<int> vec;
vec.assign(5,10);//分配5个10
//算了，assign_range是c++23的，不看也罢
```

2.元素访问类的at、operator[]、front、back、data。
```c++
auto val = vec.at(0); /*访问下标为0的位置，主要特点是会进行边界检查，如果异常的话会抛出std::out_of_range异常*/

auto val = vec[0]; /*不会进行边界检查，如果超出边界行为是未定义的*/

auto val = vec.front(); /*访问第一个元素*/

auto val = vec.back(); /*访问最后一个元素*/

auto ptr = vec.data(); //返回一个指向首元素的裸指针
```

3.四个迭代器，正向、常量正向、反向、反向常量
我们使用迭代器不是自己创建的，而是直接用一个变量来接收
end是实际元素的下一个位置
```c++
for(auto it = vec.begin();it != end();++it){
   cout << *it << endl;
}//不仅可以访问也可以修改

for(auto it = vec.cbegin();it != end();++it){
   cout << *it << endl;
}//不可以修改只可以访问

for(auto it = vec.rbegin();it != rend();++it){
   cout << *it << endl;
}//反向

for(auto it = vec.crbegin();it != rend();++it){
   cout << *it << endl;
}//不可以修改只可以访问
```

4.容量相关函数
```c++
if(vec.empty()){
   cout << "vector is empty" << endl;
} //就是判空

cout << "vector size is " << vec.size() << endl;//判断的是有几个元素，不要与容量搞混

cout << "Max size" << vec.max_size() << endl;//可能容纳的最大值，通常是一个超级大的数值

vec.reserve(10); //为vec提供分配容量 如果目前是15，使用了这个容量保持不变

cout << "Capcity" << vec.capcity() << endl; //是容量

vec.reserve(100);
vec.shrink_to_fit(); //把未使用的容量清除，没有参数。
```
What Is Cybersecurity
Tags: cybersecurity, security, course, training
Published: 2023-12-14 09:11:48

Cybersecurity, short for "cybersecurity" or "cybersecurity," refers to the practice of protecting computer systems, networks, and data from theft, damage, unauthorized access, or any form of cyberattack. It encompasses a broad range of technologies, processes, and practices designed to safeguard information technology (IT) systems and ensure their integrity, confidentiality, and availability.

The field of Cybersecurity is essential in the digital age, as our reliance on technology and interconnected systems continues to grow. Cyber threats can take various forms, including:

1.	Malware: Software designed to harm or exploit computer systems, such as viruses, worms, and ransomware.
2.	Phishing: Deceptive attempts to obtain sensitive information, such as passwords or credit card numbers, by posing as a trustworthy entity.
3.	Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks: Overloading a network, service, or website with traffic to make it unavailable to users.
4.	Data breaches: Unauthorized access to and theft of sensitive information, often involving personal or financial data.
5.	Insider threats: Security risks that originate from within an organization, such as employees or contractors with malicious intent or inadvertently causing security issues.
6.	Social engineering: Manipulating individuals into divulging confidential information or performing actions that compromise security.
Cybersecurity measures are implemented to protect against these threats and ensure the safety of digital assets. This includes using encryption, firewalls, antivirus software, multi-factor authentication, and other security tools. Additionally, ongoing monitoring, regular software updates, and user education are crucial components of a comprehensive cybersecurity strategy.
Given the dynamic nature of cyber threats, cybersecurity is a constantly evolving field that requires regular updates and adaptation to emerging challenges. Organizations, governments, and individuals alike need to stay vigilant and proactive in their efforts to secure their digital environments.
Flutter : [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException
Published: 2023-12-14 08:53:20

**Flutter : How to solve [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(null-error, Host platform returned null value for non-null return value., null, null)**


Go to **android/build.gradle** 
and replace

```
classpath 'com.google.gms:google-services:4.4.0'
```
to 

```
classpath 'com.google.gms:google-services:4.3.15'
```

**
Don't forget to leave a comment if you enjoyed**
Making Video Game Music: Insights from Islati
Tags: tutorial, music, gamedev
Published: 2023-12-14 08:50:41

# Introduction
Hello, I'm Islati, a 28-year-old passionate video game developer and music creator from Newfoundland. With over 15 years of experience, I'm excited to share my journey in indie game development and the art of crafting exceptional video game music. In this article, I'll share key insights and techniques from my video "Making Video Game Music."

{% embed https://youtu.be/5Yq6HtLmvNU %}

# Finding the Right Rhythm
The first step in creating video game music is finding the right rhythm. I often start with something as fundamental as my heartbeat, considering the BPM (beats per minute). This approach helps in setting the tone and intensity of the track. For example, in my track "Ascension," I aimed for a gradual build-up, reflecting the game's theme of cleaning up the world and bringing people together.

# Utilizing Synthesizers and Melodies
Synthesizers play a crucial role in my music. They add a unique texture that can elevate the gaming experience. In "Ascension," the synthesizers represent the peak of the track, creating a sense of elevation before bringing the listener back into the flow of the music. This technique helps in crafting a narrative through sound.

# Drawing Inspiration from Nature
Inspiration can come from the most unexpected places. For instance, the sound of raindrops led me to sample a particular rhythm that I later incorporated into a track. This approach of finding music in everyday sounds can add a unique and authentic touch to your compositions.

# Building and Transitioning
A good video game track should have a compelling build-up and transition smoothly. In "Ascension," the use of organs followed by synthesizers and chimes creates a dynamic progression. The addition of drums, hats, and snares towards the end provides a graceful finish, making the track appealing not just as a piece of music but as part of the gaming experience.

# Creating an Emotional Connection
Music in video games is not just about sounding cool; it's about creating an emotional connection with the player. For instance, in my game "Spellbound Saga," the music plays a key role in the storytelling, enhancing the player's engagement with the game's characters and world.

# Conclusion
Creating video game music is about more than just composing a track; it's about crafting an experience that enhances the gaming world. It's important to enjoy the process and believe in what you're creating. Whether you're a budding musician or a seasoned composer, remember to infuse your music with emotion and creativity to make it resonate with your audience.
Getting Started with the ASP.NET Core Scheduler Control
Tags: webdev, dotnet, csharp
Published: 2023-12-14 08:42:00

Learn how to add a Scheduler to an ASP.NET Core web application. You will see how to change and customize the current view of the Scheduler, change the current date, and add appointments. 

The ASP.NET Core Scheduler or ASP.NET Core Event Calendar is a fully featured event calendar component that helps users manage their time efficiently. It facilitates easy resource scheduling and the rescheduling of events or appointments through editor pop-ups, drag and drop, and resizing actions. 

The ASP.NET Core Scheduler loads data on demand by default to reduce the transfer and load times. Proper field mapping is mandatory while binding Scheduler to data sources with different field names. You can bind data seamlessly from various local and remote data sources such as JSON, OData, WCF, and RESTful web services with the help of a data manager. 

There are several different built-in view modes available: day, week, workweek, month, agenda, month-agenda, year, and timeline. With a variety of view-specific variables, you can customize each view. In agenda view, load events virtually and display them as a list in a sequential order grouped by day. You can specify the number of days to load initially in the agenda view, too. 

In month view, display the calendar layout and the events of the currently selected date. A round indicator at the bottom of a date shows the presence of one or more events on that day. You can easily configure recurring events to repeat on a daily, weekly, monthly, or yearly basis with integrated recurrence options. 

**Tutorial video:** https://www.syncfusion.com/tutorial-videos

**Download an example from GitHub:** https://github.com/SyncfusionExamples/getting-started-with-the-asp.net-core-scheduler-control

{% youtube 1YVOmjid1Ow %}
Web Scraping for SEO, Finance and Content Analysis
Tags: web, webdev
Published: 2023-12-14 08:39:55

Hey developers,

I found some interesting examples of web scraping being used in different fields. 

I'm curious to know how you're utilizing web scraping and in which field. ( Let me know in the comments )

Here's a link: https://apyhub.com/blog/extracting-text-from-webpages

I might include your use cases in my next blog post :)