image failed to show when Upload from Lambda

if run my code from run on localhost then upload to AWS-lambda then if i use the link on browser it will show the image but if i deploy to lambda then upload it, it will not show the image..

i have this code that upload

func UploadFile(uploader *manager.Uploader, key string, file multipart.File, fileHeader *multipart.FileHeader) (string, error) {

    if file == nil {
        return "", errors.New("file is nil")
    }

    contentType := fileHeader.Header.Get("Content-Type")
    if contentType == "" {
        contentType = "application/octet-stream" // Default to binary if content type is not provided
    }

    fileStat, err := fileHeader.Open()
    if err != nil {
        return "", fmt.Errorf("failed to open file for debugging: %w", err)
    }
    defer fileStat.Close()

    if _, err := file.Seek(0, 0); err != nil {
        return "", errors.New("failed to reset file cursor: " + err.Error())
    }

    result, err := uploader.Upload(context.TODO(), &s3.PutObjectInput{
        Bucket:      aws.String("unleap-bucket"),
        Key:         aws.String("uneleap/" + key),
        Body:        file,
        ContentType: aws.String(contentType),
        ACL:         types.ObjectCannedACLPublicRead,
    })

    if err != nil {
        return "", err
    }
    // Ensure the result is not nil and return the location of the uploaded file
    if result == nil || result.Location == "" {
        return "", errors.New("failed to get the uploaded file location")
    }
    return result.Location, err
}

this is kind of surprise to me,

if i upload from localhost link will show but if i upload from lambda it will not show

here is my serverless file

service: uneleap-api-client

frameworkVersion: ">=4.1.19"


provider:
  name: aws
  region: eu-north-1
  runtime: go1.x
  stage: ${opt:stage}
  iam:
    role:
      statements:
        - Effect: "Allow"
          Action:
            - "s3:PutObject"
            - "s3:GetObject"
            - "s3:PutObjectAcl"
          Resource: "arn:aws:s3:::u-bucket/*"

custom:
  hooks:
    'package:initialize': ./scripts/generate_swagger.sh

package:
  patterns:
    - '!*/**'
    - bin/main

functions:
  api:
    handler: bin/main
    events:
      - http:
          path: /{proxy+}
          method: ANY
          cors: true

i added this after a long search but yet no solution

iam:
        role:
          statements:
            - Effect: "Allow"
              Action:
                - "s3:PutObject"
                - "s3:GetObject"
                - "s3:PutObjectAcl"
              Resource: "arn:aws:s3:::u-bucket/*"

Add multipart/form-data to your binary media type..

so go to Api Gateway then click the Api you are using, then click Api settings at the left hand conner then add it