Data Provider

Get Data as Byte with Data Type from anywhere which providers are defined.

Motivation

Always we need to get data from anywhere. In a lot of application or libraries we want to find data by the given environment and options.

Provider Interfaces

• Provider Factory

type ProviderFactory func(opts ...interface{}) (Provider, error)

• Provider

type Provider interface{
	Get(input interface{}) ([]byte, string, error)
}

Create, Setup, Build Provider

• Create(provider type) Create is take provider type like file or http

var p, err = provider.Create("http")

• Setup if provider needs options for setup then you can use this method.

var p, err = provider.Create("http").Setup(opts...interface{})

• Build Provides to create provider.

var p, err = provider.Create("http").Build()

Exist Providers file, http

• file provider Provides to get data from absolute or relative file path.

p, err := provider.Create("file").Build()
if err != nil {
    fmt.Println("couldn't create file provider !")
} else {
    data, ext, err := p.Get("./file.go")
    
}

• http provider

Provides to get data from absolute or relative file path.

• Standard Http Provider

p, err := provider.Create("http").Build()
if err != nil {
    fmt.Println("couldn't create http provider !")
} else {
    data, ext, err := p.Get("https://www.google.com.tr/logos/2017/hiphop/cta_bg.jpg")
}

• Custom Http Provider if you need to apply some security rules then

// get file by http provider
	result, contentType, err = p.Get(&provider.HttpInput{
		Method: "GET",
		Url:"https://www.google.com.tr/logos/2017/hiphop/cta_bg.jpg",
		Headers: map[string]string{},
})

New Provider

Create You Provider

• Create Provider

type MyProvider struct {
	opts interface{}
}

• Create Get method for your provider

func (provider *MyProvider) Get(input interface{}) ([]byte, string, error) {
	...
	result is must be data as []byte
	contentType is extension of the data.
	return result, contentType, err
}

• Create Provider Factory Function.

func MyProviderFactory(opts ...interface{}) (Provider, error) {
	return &MyProvider{
		opts: nil,
	}, nil
}

Add Your Provider to Data Provider

import (
	"github.com/kbukum/dataprovider"
)
func main() {
    provider.Add("myProvider", MyProviderFactory)
}