/
client.go
82 lines (70 loc) · 1.54 KB
/
client.go
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package s3
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3manager"
)
type ClientBuilder interface {
UploaderWith() s3Uploader
}
type builder struct {
config []*aws.Config
context *aws.Context
options session.Options
bucket string
region string
}
func With() *builder {
return &builder{
region: "eu-west-1",
}
}
func (b *builder) session() (*session.Session, error) {
b.options.Config.MergeIn(b.config...)
s, err := session.NewSessionWithOptions(b.options)
if err != nil {
return nil, err
}
if b.bucket != "" {
region, err := s3manager.GetBucketRegion(*b.context, s, b.bucket, b.region)
if err != nil {
return nil, err
}
b.region = region
}
return s, nil
}
func (b *builder) SharedConfigEnable() *builder {
b.options.SharedConfigState = session.SharedConfigEnable
return b
}
func (b *builder) Region(region string) *builder {
b.region = region
return b
}
func (b *builder) Context(c *aws.Context) *builder {
b.context = c
return b
}
func (b *builder) Bucket(bucket string) *builder {
b.bucket = bucket
return b
}
func (b *builder) buildS3Client() (*s3.S3, error) {
if b.context == nil {
c := aws.BackgroundContext()
b.context = &c
}
s, err := b.session()
if err != nil {
return nil, err
}
return s3.New(s, aws.NewConfig().WithRegion(b.region)), nil
}
func (b *builder) UploaderWith() s3Uploader {
cl, err := b.buildS3Client()
return UploaderWith().
Error(err).
Client(cl).Bucket(b.bucket)
}