Golang client for SAP Cloud Platform Destination Services

Based on the published API at https://api.sap.com/api/SAP_CP_CF_Connectivity_Destination/resource.

This library provides a convenient client for accessing the Destination service on the SAP Cloud Platform Cloud Foundry environments.

Usage

The configuration details required for creating a new DestinationClient instance are provided in the destination service binding in the credentials section. The application must create an instance of the destination service, and bind to it in order to access the configuration details.
```
cf create-service destination lite example-destination
```
Add the service to the manifest.yml in order to bind to it.
Configure and use the DestinationClient

package main

import (
	"fmt"
	"os"

	destinations "github.com/liorokman/go-sapcp-destination-client"
	"github.com/tidwall/gjson"
)

func main() {

	vcap := os.Getenv("VCAP_SERVICES")
	if vcap == "" {
		fmt.Printf("No VCAP_SERVICES")
		os.Exit(1)
	}
	destinationClient, err := destinations.NewClient(destinations.DestinationClientConfiguration{
		ClientID:     gjson.Get(vcap, "destination.0.credentials.clientid").String(),
		ClientSecret: gjson.Get(vcap, "destination.0.credentials.clientsecret").String(),
		TokenURL:     gjson.Get(vcap, "destination.0.credentials.url").String(),
		ServiceURL:   gjson.Get(vcap, "destination.0.credentials.uri").String(),
	})
	if err != nil {
		panic(err)
	}
	destinations, err := destinationClient.GetSubaccountDestinations()
	if err != nil {
		panic(err)
	}
	for _, dest := range destinations {
		fmt.Printf("Destination: %s(%s)\n", dest.Name, dest.Type)
	}

}

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