我有这样的客户:
The 'Access-Control-Allow-Origin' header has a value 'null' that is not equal to the supplied origin. Origin 'null' is therefore not allowed access.
服务器:
def run():
channel = grpc.insecure_channel('localhost:50051')
stub = helloworld_pb2_grpc.GreeterStub(channel)
metadata = [('key', "value")]
response = stub.SayHello(
helloworld_pb2.HelloRequest(name='you'),
metadata=metadata
)
print("Greeter client received: " + response.message)
那么,在服务器中,如何读取客户端发送的元数据?
答案 0 :(得分:2)
https://grpc.io/grpc/python/grpc.html#grpc.ServicerContext.invocation_metadata
我们可以使用context.invocation_metadata()
来访问客户端的元数据
答案 1 :(得分:1)
只需在-的正确答案之上添加一些内容即可。
您可以像字典一样检索数据
metadict = dict(context.invocation_metadata())
userid = metadict['userid']
此外,我强烈建议您使用ServerInterceptor检出gprc示例存储库以了解更高级的用例-here-