teleren/devto huggingface dataset:
Unlocking the Power of NoSQL in the Cloud: Breaking Free from Relational Constraints
Tags: database, nosql, webdev, learning
Published: 2024-06-23 09:33:55

{% cta https://www.linkedin.com/posts/rajkishore_cloudcomputing-database-nosql-activity-7209524120819007488-5AUL?utm_source=share&utm_medium=member_desktop %} Unlocking the Power of NoSQL in the Cloud: LinkedIn {% endcta %}
Apache Superset Clickhouse integration
Tags: superset, softwares, elestio
Published: 2024-07-05 15:40:25

---
title: Apache Superset Clickhouse integration
published: true
date: 2024-06-23 08:52:30 UTC
tags: Superset,Softwares,Elestio
canonical_url: https://blog.elest.io/apache-superset-clickhouse-integration/
cover_image: https://blog.elest.io/content/images/2024/06/Frame-8-5.png
---
Hey everyone, In this blog we will be knowing more about [Superset](https://elest.io/open-source/superset?ref=blog.elest.io) Clickhouse integration. Discover how integrating Apache Superset with ClickHouse can elevate your data visualization and analytics capabilities. This guide walks you through setting up and optimizing this powerful combination.

#### Apache Superset and ClickHouse Integration

Combining Apache Superset with ClickHouse offers a robust solution for data analytics, enabling users to visualize and interact with their ClickHouse datasets effectively. Here’s how to set up this integration:

#### Prerequisites

Make sure you have `clickhouse-connect>=0.6.8` installed. If you're using Docker Compose, add this requirement to `./docker/requirements-local.txt`.

#### Connection String

To connect Superset to ClickHouse, use the following connection string format from your Superset service:

```
clickhousedb://<user>:<password>@<host>:<port>/<database>[?options…]

```

For local ClickHouse instances, a simpler connection string can be used:

```
clickhousedb://localhost/default

```

#### Visualization and Dashboards

Once connected, take advantage of Superset's user-friendly interface to create engaging visualizations and dashboards. Utilize the SQL IDE for data preparation and define custom dimensions and metrics using the semantic layer.

#### Security and Scalability

Superset allows you to configure detailed access rules and integrate with various authentication backends. Its cloud-native architecture ensures scalability and high availability, making it ideal for large, distributed environments.

#### Unique Insights

For specific configurations and best practices to enhance your integration experience, refer to the official documentation.

By integrating Apache Superset with ClickHouse, you can unlock deeper insights and create compelling visualizations that drive data-informed decisions.

#### Sample ClickHouse SQL Query in Superset

```
SELECT event_date, count() AS events
FROM events
WHERE event_date >= '2021-01-01'
GROUP BY event_date
ORDER BY event_date

```

## **Thanks for reading ❤️**

Thank you so much for reading and do check out the Elestio resources and Official [Superset documentation](https://superset.apache.org/docs/intro/?ref=blog.elest.io) to learn more about Superset. You can click the button below to create your service on [Elestio](https://elest.io/open-source/superset?ref=blog.elest.io). See you in the next one👋

[![Apache Superset Clickhouse integration](https://pub-da36157c854648669813f3f76c526c2b.r2.dev/deploy-on-elestio-black.png)](https://elest.io/open-source/superset?ref=blog.elest.io)
Difference Between Number() and parseInt() in Converting Strings?
Tags: javascript, beginners, programming, webdev
Published: 2024-06-23 09:10:17

Number(): Searches the entire string for numbers. If it finds anything else, it will return NaN (short for Not a Number).

parseInt() / parseFloat(): Returns the first number in the string, ignoring the rest. If there are no numbers at the beginning of the string, it will return NaN.

let's take an example:

**Example 1:**
`let a = "1hola1";
console.log(Number(a));
console.log(parseInt(a));
output->
NaN
1`

**Example 2:**
`let a = "1";
console.log(Number(a));
console.log(parseInt(a));
output->
1
1
`

In conclusion , We use Number() for the Strings that only contains numbers,the parseInt() does the opposite.
I will be learning linux in next 180 days
Published: 2024-06-23 09:07:05

RHCSA (red hat certified system administrator)
It is a global level certification that focus, on to perform the core system administration skills required for Red Hat Enterprise Linux environments.

Linux:

- Linux is an open source kernel.
- Linux base OS are like unix based.
- Linux kernel written by Linux Torvalds in 1991. 

Linux Distributions
https://en.wikipedia.org/wiki/List_of_Linux_distributions
JavaScript code real-time online obfuscation encryption
Published: 2024-06-23 09:06:05

JavaScript obfuscation is a technique that transforms source code into a format that is difficult to understand and reverse engineer. The obfuscated code functions the same as the original code but is much less readable, increasing the security of the code and preventing it from being easily copied, tampered with, or reverse-engineered by others.

**Why JavaScript Obfuscation is Needed**
Protect Intellectual Property: Prevent unauthorized copying or theft of code.

Increase Security: Reduce the risk of code being exploited by hackers.

Reduce Risk of Reverse Engineering: Make it difficult for hackers to understand the code logic, thus protecting business logic and algorithms.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/mo4ohuz9v252mgsmwxgb.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/9npbm9kr95zfo1wfocqj.png)

[Online Test](https://addgraph.com/jsobfuscator)

JavaScript obfuscation is an effective technique to protect your code from unauthorized access and modification. While it cannot completely prevent reverse engineering, it can significantly increase the difficulty of cracking the code. By using appropriate tools and techniques, you can ensure that your JavaScript code is more secure when deployed to production environments.
Superset Download as Image API Guide
Tags: superset, softwares, elestio
Published: 2024-07-05 16:18:53

---
title: Superset Download as Image API Guide
published: true
date: 2024-06-23 09:00:42 UTC
tags: Superset,Softwares,Elestio
canonical_url: https://blog.elest.io/superset-download-as-image-api-guide/
cover_image: https://blog.elest.io/content/images/2024/06/Frame-8-8.png
---
Hey everyone, In this blog we will knowing more about [Superset](https://elest.io/open-source/superset?ref=blog.elest.io) Download as Image API Guide. Apache Superset provides a powerful API for downloading dashboard images, making it easier to share visual insights without requiring direct access to the platform. This guide explains how to use the Superset API to export dashboard images seamlessly.

#### Understanding Superset's Image Export Feature

Superset’s API enables the programmatic export of dashboard images, which is beneficial for distributing visual insights. Here’s a step-by-step guide to leveraging this feature:

#### API Endpoint

- **Endpoint:** Use `/api/v1/chart/export/` to export images of your charts.
- **Chart ID:** You need to provide the chart ID in the request.

#### Request Method

- **Method:** Send a `POST` request with the necessary authentication headers.

#### Payload

- **Parameters:** Include specific parameters in the request body, such as the desired image format (e.g., PNG, JPEG).

#### Response

- **Format:** The API returns the image in binary format, which can be saved or embedded as needed.

#### Example cURL Command

Here’s an example of a cURL command to export a chart image:

```
curl -X POST 'http://superset.example.com/api/v1/chart/export/' \
     -H 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
     --data-raw '{"dashboard_id": YOUR_CHART_ID}'

```

Replace `YOUR_ACCESS_TOKEN` and `YOUR_CHART_ID` with your actual access token and chart ID.

By using the Superset API to export dashboard images, you can streamline the sharing of visual data insights. For more details and customization options, refer to the official Superset documentation.

## **Thanks for reading ❤️**

Thank you so much for reading and do check out the Elestio resources and Official [Superset documentation](https://superset.apache.org/docs/intro/?ref=blog.elest.io) to learn more about Superset. You can click the button below to create your service on [Elestio](https://elest.io/open-source/superset?ref=blog.elest.io). See you in the next one👋

[![Superset Download as Image API Guide](https://pub-da36157c854648669813f3f76c526c2b.r2.dev/deploy-on-elestio-black.png)](https://elest.io/open-source/superset?ref=blog.elest.io)
Superset Redis Caching Guide
Tags: superset, softwares, redis, elestio
Published: 2024-07-05 16:18:07

---
title: Superset Redis Caching Guide
published: true
date: 2024-06-23 08:57:39 UTC
tags: Superset,Softwares,Redis,Elestio
canonical_url: https://blog.elest.io/superset-redis-caching-guide/
cover_image: https://blog.elest.io/content/images/2024/06/Frame-8-7.png
---
Hey everyone, In this blog we will be knowing more about [Superset](https://elest.io/open-source/superset?ref=blog.elest.io) Redis Caching. Optimize your Superset dashboards for better performance and scalability by integrating Redis caching. This guide explains how to set up and leverage Redis as a cache backend in Superset.

#### Understanding Redis as a Cache Backend in Superset

Superset integrates with Redis to create a caching layer that improves performance by storing the results of expensive queries. Here’s how you can configure Redis as your cache backend:

#### Cache Configuration

To set up Redis caching, add the following configuration to your `superset_config.py` file:

```
CACHE_CONFIG = {
    'CACHE_TYPE': 'redis',
    'CACHE_DEFAULT_TIMEOUT': 300,
    'CACHE_KEY_PREFIX': 'superset_results',
    'CACHE_REDIS_URL': 'redis://localhost:6379/0'
}

```

#### Benefits of Using Redis

- **Speed:** Redis offers fast read and write operations as an in-memory data store.
- **Scalability:** Redis can scale horizontally, making it ideal for distributed environments like Superset.
- **Persistence:** Redis provides various persistence options, ensuring cached data isn’t lost during failures.

#### Advanced Caching Strategies

- **Time-Based Invalidation:** Use `CACHE_DEFAULT_TIMEOUT` to control cache duration.
- **Granular Cache-Control** Redis offers fast read and write operations as an in-memory data store **:** Customize caching policies at the chart or dashboard level.

#### Monitoring and Maintenance

- **Monitoring:** Use Redis monitoring tools to track cache hit rates and optimize cache size.
- **Maintenance:** Regularly clear old or unused cache keys to maintain cache efficiency.

By leveraging Redis, Superset can deliver faster insights and an improved user experience.

### Integrating Redis into Superset

Integrating Redis into Superset's architecture not only improves performance but also contributes to a more robust and responsive BI tool. Proper configuration of Redis is crucial to match the scale of your Superset deployment. Ensure that your Redis instance is optimized for your specific use case to maximize the benefits.

## **Thanks for reading ❤️**

Thank you so much for reading and do check out the Elestio resources and Official [Superset documentation](https://superset.apache.org/docs/intro/?ref=blog.elest.io) to learn more about Superset. You can click the button below to create your service on [Elestio](https://elest.io/open-source/superset?ref=blog.elest.io). See you in the next one👋

[![Superset Redis Caching Guide](https://pub-da36157c854648669813f3f76c526c2b.r2.dev/deploy-on-elestio-black.png)](https://elest.io/open-source/superset?ref=blog.elest.io)
4 Ideas to Create Organic Growth for a Web App
Tags: webdev, seo, tutorial, startup
Published: 2024-06-23 08:51:47

Growing a web app is hard, especially when you have limited capital. This is usually the case for us small indie developers, and because of that, I have built an arsenal of growth ideas to launch that website with a bang!

## 1. Utilize social media

When starting out, the easiest win is social media. It can generate a lot of buzz right out of the gates, and people tend to share a website they like with their friends. 

My usual launch of a website goes something like this:

- Publishing 10 short form videos (Across YouTube shorts, TikTok and Instagram Reels)
- Publish 5 long form YouTube videos (Show your product and show your insight in the niche)
- Get the foundation going on all the socials (X, Instagram, Facebook) by posting a couple posts on each
- Plan out posts that automatically posts everyday for the next month ahead

These days most of the social media platforms use a "For You" structure in their feeds. This means you no longer really need to build an audience to get traction, you just need great content. Good content is generally attention grabbing, emotional, or something people haven't seen before.

## 2. Start the SEO campaign

Step number two in the launch of your web app should definitely be launching the SEO campaign. It takes a couple of months to get traction with the organic traffic, which is why it's important to start it as soon as possible. 

You want to build all your "money pages" first, so that search engines understand what your website is about. To later move on to the informational content afterwards.

The most important part when it comes to SEO from my experience is keeping up! Until you have reached around 200 pages of good content - you want to publish at least once a day. After that, you can slow down a bit and focus on improving what's already published.

## 3. Get a PR campaign going

Getting featured in local or national magazines is a great way to get a boat load of traffic in a matter of days. This gets eyeballs on your web app directly, and usually starts a snow ball effect. Once one news publication mentions you or your brand - the rest will follow. This creates a serious chance both to get your first paying customers, or reach investors and future partners.

## 4. Take the feedback to heart

When launching a new web app chances are big you made some mistakes or something is broken. Make sure to therefore add some type of feedback option for your users. This makes you be able to file on your application before it hits the real big masses. 

It's also a great idea to launch a beta version before your real launch. Invite some of the friends you picked up in the niche your in!

That's all folks, good luck with your little (or big) web app!
Face Mask for Tan Removal
Tags: beauty, deta, productivity, skin
Published: 2024-06-23 08:51:24


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/mkdcq5kaasnha8kpncz5.jpg)## Brighten Your Complexion with Pink Root Face Mask for Tan Removal


Remove stubborn tan and brighten your complexion with [Pink Root Face Mask for Tan Removal](https://www.pinkroot.in/products/pink-root-detan-face-mask-). This powerful face mask is formulated to reduce the effects of sun exposure, removing tan and restoring your skin's natural glow. The natural ingredients in the mask help to lighten dark spots and pigmentation, giving you an even skin tone.

The face mask works by exfoliating the skin and removing dead skin cells, revealing fresh and radiant skin underneath. The antioxidants in the mask help to protect the skin from further damage, while the nourishing ingredients keep the skin hydrated and healthy. Use Pink Root Face Mask for Tan Removal regularly to maintain a bright and even complexion.
Install local environment - CachyOS
Tags: peviitor
Published: 2024-06-23 08:49:06

##Here is how you install local environment for peviitor.ro

---
###Preconditions
Make sure you have installed:

- git

- github Desktop

- docker


##Steps to install

- 
Create directory if it doesn't exist

```
mkdir -p ~/peviitor
```

- 
Clone repositories

```
git clone https://github.com/peviitor-ro/solr.git ~/peviitor/solr
git clone https://github.com/peviitor-ro/api.git ~/peviitor/api
```

- 
replace < your-username > with your linux username

```
sudo chmod -R a+rwx /home/<your-username>/peviitor/solr
```

- 
stop apache-container 
```
docker stop apache-container
docker rm apache-container
```

- 
stop solr-container
```
docker stop solr-container
docker rm solr-container
```

- 
stop data-migration container
```
docker stop data-migration
docker rm data-migration
```

- create subnetwork mynetwork
```
sudo docker network create --subnet=172.18.0.0/16 mynetwork
```

- 
replace < your-username > with your linux username

```
docker run --name apache-container --network mynetwork --ip 172.18.0.11 -d -p 8080:80 -v /home/<your-username>/peviitor:/var/www/html sebiboga/php-apache:1.0.0
```

- 
replace < your-username > with your linux username
```
docker run --name solr-container --network mynetwork --ip 172.18.0.10 -d -p 8983:8983 -v "/home/<your-username>/peviitor/solr/core/data:/var/solr/data" sebiboga/peviitor:1.0.0
```

- 
wait for solr-container to start

- run data-migration container
```
docker run --name data-migration --network mynetwork --ip 172.18.0.12 --rm sebiboga/peviitor-data-migration-local:latest
```

- 
remove the image data-migration

```
docker rmi sebiboga/peviitor-data-migration-local:latest
```

##Test the environment in browser:
`http://localhost:8983/`
`http://localhost:8080/api/v0/random/`
Twilio challenge : EcoAlert
Tags: devchallenge, twiliochallenge, ai, twilio
Published: 2024-06-23 08:48:32

*This is a submission for [Twilio Challenge v24.06.12](https://dev.to/challenges/twilio)*

## What I Built
I have built a web application named EcoAlert this application 
connects the general public with the authorities responsible for waste collection and management. Through my application, people can post images online depicting waste issues. These images are then labeled as high severity or low severity, making it easier for authorities to identify which tasks they should prioritize. When a high-severity issue is identified, an SMS alert is sent to the respective authorities, prompting them to take action as soon as possible.
## Demo


## Twilio and AI
I have leveraged the SMS capabilities of Twilio to send notifications to the relevant authorities when a high-severity case is identified. Additionally, I trained an AI model to recognize and classify cases as either high severity or low severity.
Demo

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fyzai4s4oqptcaw5it5s.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/kchxzh9c7b4e9eojop56.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/g63900xxox5m7ukzx5t6.png)

[EcoAlert Github repo](https://github.com/Reyan9450/EcoAlert)

## Additional Prize Categories

**Impactful Innovators**: EcoAlert addresses a significant environmental issue by improving the efficiency and responsiveness of waste management authorities through innovative use of Twilio's communication capabilities and AI integration.
Repair N8N SQLite database
Tags: n8n, softwares, elestio
Published: 2024-07-05 15:38:49

---
title: Repair N8N SQLite database
published: true
date: 2024-06-23 08:37:42 UTC
tags: N8N,Softwares,Elestio
canonical_url: https://blog.elest.io/repair-n8n-sqlite-database/
cover_image: https://blog.elest.io/content/images/2024/06/Frame-8-2.png
---
Hey everyone, In this blog we will see how you can repair the [N8N](https://elest.io/open-source/n8n?ref=blog.elest.io) SQLite database. During this tutorial, we are going to use a self-hosted version of N8N deployed on Elestio. So before we start, ensure you have deployed N8N, we will be self-hosting it on [Elestio](https://elest.io/open-source/n8n?ref=blog.elest.io).

## Go to your N8N data folder 

Open terminal and go to your N8N data folder, on elestio it's located on /opt/app/n8n/database.sqlite

## Repair using the ".repair" command in CLI

**Step 1:** Open the Command Line Interface and ensure you can access the SQLite CLI, the program named "SQLite3".

**Step 2:** Generate SQL Text from the Corrupt Database and use the following command to recover your corrupt database and generate SQL text:

```
sqlite3 database.sqlite .recover >recover.sqlite
```

This command will create a file named "recover.sqlite" containing the SQL text necessary to reconstruct the original database.

**Step 3:** Rename the corrupt database and use the cleaned database:

```
mv database.sqlite database-old.sqlite
mv recover.sqlite database.sqlite
```

By following these steps, you can effectively recover data from a corrupt SQLite database using the CLI.

## **Thanks for reading ❤️**

Thank you so much for reading and do check out the Elestio resources and Official [N8N documentation](https://docs.n8n.io/?ref=blog.elest.io) to learn more about N8N. You can click the button below to create your service on [Elestio](https://elest.io/open-source/n8n?ref=blog.elest.io) and start building a robust database for SQLite and recover the databases if corrupt. See you in the next one👋

[![Repair N8N SQLite database](https://pub-da36157c854648669813f3f76c526c2b.r2.dev/deploy-on-elestio-black.png)](https://elest.io/open-source/n8n?ref=blog.elest.io)
Simple YAML Linter/Validator Workflow for GitHub Actions
Tags: github, githubactions, tutorial, yaml
Published: 2024-06-23 08:34:31

Here's a quick tip if you work with YAML on GitHub!

The GitHub Actions Ubuntu runners comes with [yamllint](https://github.com/adrienverge/yamllint) installed, meaning it's super simple to create linting/validating workflows to ensure your YAML is valid!


```yaml
name: Validate YAML

on:
  push:
  pull_request:

jobs:
  validate-yaml:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Validate YAML file
        run: yamllint my-file.yml
```
Cypress Debugging: How to Get Started
Tags: javascript, cypress, automation, testing
Published: 2024-06-23 08:29:44

Writing code quickly is a valuable skill, but the true mark of a proficient software developer is the ability to effectively debug and resolve errors and bugs. Debugging is a critical aspect of the development process, ensuring that software functions as intended and meets user needs.

**Methods of debugging in Cypress**
Debugging in Cypress can be performed using various methods, including command logs, .pause(), .debug(), cy.log(), console.log(), and the native JavaScript debugger.

**Below are various methods of debugging the test case in Cypress**

[Click on links to know in detail about Cypress debugging](https://testgrid.io/blog/debug-cypress/)

Cypress debugging using command logs
Cypress debugging using method .pause() 
Cypress debugging using .debug() method
Cypress debugging using cy.log()
Cypress debugging using console.log()
Cypress debugging using native debugger
Cypress debugging using screenshot and video
Dynamically add nodes to a force-directed graph
Published: 2024-06-23 08:29:42


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zk6zx6q3mrx71odbgmf6.gif)
https://youtu.be/qlLQj12daDo

[demo](https://addgraph.com/leftRight)