November 2021
Beginner to intermediate
239 pages
4h 15m
Chinese
Content preview from Dapr学习手册
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104
｜
第
2
章
func (r *ETCD) Set(req *state.SetRequest) error {
ctx, cancelFn :=
context.WithTimeout(context.Background(), r.operationTimeout)
defer cancelFn()
var vStr string
b, ok := req.Value.([]byte)
if ok {
vStr = string(b)
} else {
vStr, _ = r.json.MarshalToString(req.Value)
}
_, err := r.client.Put(ctx, req.Key, vStr)
if err != nil {
return err
}
return nil
}
所以，严格来说，现有的实现并不完整。这个问题由
components-contrib
仓库
中的
issue number #169 (
https://oreil.ly/viyGa
)
跟进。请查看问题状态，了解
最新的细节。
可以使用
etcd
的命令行工具
etcdctl
来查询
etcd
存储。要查询与
Dapr ID
myapp
相关的所有状态，使用下面的命令（假设
ENDPOINTS
指向
etcd
主机端点，
用逗号分隔）：
etcdctl --endpoints=$ENDPOINTS get myapp –prefix
要从名为
balance
的特定
key
中获取数据，请使用以下查询： ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.