这是一个围绕 Go 的 net/http 进行封装,以提供安全性和便利性。在 Monzo,Typhon 成为我们微服务平台中的大多数客户端和服务器的基础。
这是一个围绕 Go 的 net/http 进行封装,以提供安全性和便利性。在 Monzo,Typhon 成为我们微服务平台中的大多数客户端和服务器的基础。
Typhon is a wrapper around Go's net/http library that we use at Monzo to build RPC servers and clients in our microservices platform.
It provides a number of conveniences and tries to promote safety wherever possible. Here's a short list of interesting features in Typhon:
No need to close body.Close() in clients
Forgetting to body.Close() in a client when the body has been dealt with is a common source of resource leaks in Go programs in our experience. Typhon ensures that – unless you're doing something really weird with the body – it will be closed automatically.
Middleware "filters"
Filters are decorators around Services; in Typhon servers and clients share common functionality by composing it functionally.
Body encoding and decoding
Marshalling and unmarshalling request bodies to structs is such a common operation that our Request and Response objects support them directly. If the operations fail, the errors are propagated automatically since that's nearly always what a server will want.
Propagation of cancellation
When a server has done handling a request, the request's context is automatically cancelled, and these cancellations are propagated through the distributed call stack. This lets downstream servers conserve work producing responses that are no longer needed.
Error propagation
Responses have an inbuilt Error attribute, and serialisation/deserialisation of these errors into HTTP errors is taken care of automatically. We recommend using this in conjunction with monzo/terrors.
Full HTTP/1.1 and HTTP/2.0 support
Applications implemented using Typhon can communicate over HTTP/1.1 or HTTP/2.0. Typhon has support for full duplex communication under HTTP/2.0, and h2c (HTTP/2.0 over TCP, ie. without TLS) is also supported if required.
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