如何通过 appengine 端点 api 上传图片？

Question

我正在使用 Endpoints Proto Datastore API。 假设我有这样的代码：

型号：

class MyModel(EndpointsModel):
  _message_fields_schema = ('name', 'image')
  name = ndb.StringProperty()
  image = ndb.BlobProperty()

API :

@endpoints.api(name='myapi', version='v1', description='my api')
class MyApi(remote.Service):

@MyModel.method(name='mymodel.insert', path='mymodel')
def insert_mymodel(self, data):
    data.put()
    return data

如何通过 api 将图像上传到数据存储区？ 提前谢谢你。

Answer 1

我自己没做过但是 taken from here。您需要使用字节类型并将图像编码为base64：

When using Cloud Endpoints, the bytes sent to a BytesField must be base64 encoded.

After being sent and validated through Google's API infrastructure, the base64 encoded bytes will be sent along to your protorpc.remote.Service class and converted from a base64 string to a native byte-string (instance of str) in Python.

So you'll need your clients to take the image bytes and convert them to base64.

To encode a byte string as base64 in Javascript, see How can you encode to Base64 using Javascript?, to do the same in Python, simply call

import base64 base64.b64encode(byte_string)