在 Django 只生成 s3 客戶端 generate_presigned_post ，內容類型為 mp4 文件上傳

Question

上傳視頻（ .mp4 ）文件后，S3 元數據設置其Content-Type: binary/octet-stream when 使我的瀏覽器強制下載文件而不是播放為了使其在瀏覽器中播放，我需要更改該內容類型以編程方式到django中的“ video/mp4 ”

Answer 1

經過大量時間后，我得出了解決方案：{

def presign_post_S3_url(self, key=None, is_public=False):
    acl = 'private'

    if is_public:
        acl = 'public-read'
    fields = {"acl": acl, "Content-Type": "video/mp4"}
    conditions = [
        {"acl": acl},
        ["starts-with", "$Content-Type", ""]
    ]
    if key is None:
        return ""
   ##s3_client is boto3.client object
    s3_client = self.get_s3_client()
    if s3_client is None:
        return ""
    data = s3_client.generate_presigned_post(
        Bucket=self.bucket,
        Key=key,
        Fields=fields,
        Conditions=conditions

    )
    return data