https://github.com/ranjanrak/go-sqlcandlestick

Tiny go package for serving candlestick chart for any relational database.
https://github.com/ranjanrak/go-sqlcandlestick

candlestick relational-databases

Last synced: 2 days ago
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Tiny go package for serving candlestick chart for any relational database.

• Host: GitHub
• URL: https://github.com/ranjanrak/go-sqlcandlestick
• Owner: ranjanrak
• License: mit
• Created: 2022-07-22T05:14:19.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-07-23T09:00:49.000Z (over 2 years ago)
• Last Synced: 2024-06-20T16:47:46.008Z (5 months ago)
• Topics: candlestick, relational-databases
• Language: Go
• Homepage:
• Size: 10.7 KB
• Stars: 2
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go-sqlcandlestick

[![Run Tests](https://github.com/ranjanrak/go-sqlcandlestick/actions/workflows/go-test.yml/badge.svg)](https://github.com/ranjanrak/go-sqlcandlestick/actions/workflows/go-test.yml)

[![Go Reference](https://pkg.go.dev/badge/github.com/ranjanrak/go-sqlcandlestick.svg)](https://pkg.go.dev/github.com/ranjanrak/go-sqlcandlestick)

Tiny go package for serving candlestick chart for relational database.

## Installation

```

go get -u github.com/ranjanrak/go-sqlcandlestick

```

## Usage

```go

package main

import (

	"log"

	sqlcandlestick "github.com/ranjanrak/go-sqlcandlestick"

)

func main() {

    client, err := sqlcandlestick.New(sqlcandlestick.ClientParam{

                    DriverName: sqlcandlestick.Clickhouse,

                    DSN: "tcp://127.0.0.1:9000?debug=true"})

    if err != nil {

        log.Fatalf("Error connecting to db: %v", err)

    }

    // Prepare sql statement

    queryStatement := `SELECT date,

                        open,

                        close

                        max(price) AS high,

                        min(price) AS low

                        FROM candle_data

                        GROUP BY date

                        ORDER BY date ASC`

    // Serve the candlestick chart

    client.ServeChart(queryStatement, "", nil)

}

```

### Default candlestick chart

![image](https://user-images.githubusercontent.com/29432131/180370745-73637dbc-a020-440e-973d-ead2bf5089ec.png)

## Create your own candlestick pattern

You can create your own candlestick chart types and pass the chart config to `ServeChart(..., chart *charts.Kline)`.

Few example chart config are shown under [examples](https://github.com/ranjanrak/go-sqlcandlestick/tree/main/examples) folder.

1. Candlestick OCLH chart along with volume movement

   ![image](https://user-images.githubusercontent.com/29432131/180378371-8665436f-3bb1-48d5-9dd9-e4b748e89a3d.png)

2. Candlestick OCLH chart with EMA and SMA lines

   ![image](https://user-images.githubusercontent.com/29432131/180597744-36ec1cdc-10d8-4992-923d-f3fd3333d3cc.png)

### Run unit tests

```

go test -v

```