GetParameterv2
GetParameterv2.go
This example retrieves a Systems Manager string parameter.
go run GetParameterv2.go -n NAME
- NAME is the name of the parameter to retrieve.
Source code
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX - License - Identifier: Apache - 2.0
package main
import (
"context"
"flag"
"fmt"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/ssm"
)
// SSMGetParameterAPI defines the interface for the GetParameter function.
// We use this interface to test the function using a mocked service.
type SSMGetParameterAPI interface {
GetParameter(ctx context.Context,
params *ssm.GetParameterInput,
optFns ...func(*ssm.Options)) (*ssm.GetParameterOutput, error)
}
// FindParameter retrieves an AWS Systems Manager string parameter
// Inputs:
// c is the context of the method call, which includes the AWS Region
// api is the interface that defines the method call
// input defines the input arguments to the service call.
// Output:
// If success, a GetParameterOutput object containing the result of the service call and nil
// Otherwise, nil and an error from the call to GetParameter
func FindParameter(c context.Context, api SSMGetParameterAPI, input *ssm.GetParameterInput) (*ssm.GetParameterOutput, error) {
return api.GetParameter(c, input)
}
func main() {
parameterName := flag.String("n", "", "The name of the parameter")
flag.Parse()
if *parameterName == "" {
fmt.Println("You must supply the name of the parameter")
fmt.Println("-n NAME")
return
}
cfg, err := config.LoadDefaultConfig(context.TODO())
if err != nil {
panic("configuration error, " + err.Error())
}
client := ssm.NewFromConfig(cfg)
input := &ssm.GetParameterInput{
Name: parameterName,
}
results, err := FindParameter(context.TODO(), client, input)
if err != nil {
fmt.Println(err.Error())
return
}
fmt.Println(*results.Parameter.Value)
}
See the complete example in GitHub.
Last modified January 15, 2021: Code Example Highlighting, Vairous Documentation Fixes (#1045) (495b900)