s3.ts

import * as AWS from 'aws-sdk'
import Env from '@ioc:Adonis/Core/Env'
import { v4 as uuid } from 'uuid'
import { ManagedUpload } from 'aws-sdk/clients/s3'

const AWS_BUCKET_NAME = Env.getOrFail('AWS_BUCKET_NAME') as string
const AWS_REGION = Env.getOrFail('AWS_REGION') as string
const AWS_SECRET_ACCESS_KEY = Env.getOrFail('AWS_SECRET_ACCESS_KEY') as string
const AWS_ACCESS_KEY_ID = Env.getOrFail('AWS_ACCESS_KEY_ID') as string

const s3 = new AWS.S3({
  region: AWS_REGION,
  secretAccessKey: AWS_SECRET_ACCESS_KEY,
  accessKeyId: AWS_ACCESS_KEY_ID,
})

export const uploadToS3Bucket = async (file: any) => {
  const contentType = file.headers['content-type']

  const subType = contentType.slice(contentType.lastIndexOf('/') + 1)
  const fileName = uuid() + '.' + subType

  const s3Params = {
    Bucket: AWS_BUCKET_NAME,
    Key: fileName,
    Body: file,
    ContentType: contentType,
    ACL: 'public-read',
  }

  return await new Promise((resolve: (value:string) => void, reject) => {
    s3.upload(s3Params, (err: Error, data: ManagedUpload.SendData) => {
      if (err) {
        reject(err)
      }

      resolve(data.Location)
    })
  })
}