Releases: micro/go-micro
0.22.0 - Evolutionary changes
Address backwards compatibility
Due to breaking changes in the past 3 weeks, I've had to address how this should be tackled in the long term. I've made the effort to make codec transition evolutionary as well as the api changes for Method() move to Endpoint(). In the process I've had to break the CallFunc signature but few likely use this. One thing which has not changed though is the registry. We are still making use of MDNS as the default.
- Codecs are now evolutionary and backwards compatible
- Service Method() is now back in the interface
0.21.0 - MDNS becomes the default registry
Changes:
- Make MDNS the default registry
- Move mocks to be memory implementations
- Add metadata.Copy function
MDNS becomes the default registry. If you're using consul specify --registry=consul or MICRO_REGISTRY=consul
0.20.0 - Breaking Changes
BREAKING CHANGES
Codec
Do not move to this tag unless you're willing to incur the breaking changes.
This changes the default codec to raw protobuf and switches the content-type
application/octet-stream to use the bytes codec also. This breaking change
affects any previous use.
To explicitly be backwards compatible do the following.
In the server
// Process octet-stream as proto-rpc in the old ways
server.DefaultCodecs["application/octet-stream"] = protorpc.NewCodec
// Process json in the old way
server.DefaultCodecs["application/json"] = jsonrpc.NewCodec
// Process protobuf in the old way
server.DefaultCodecs["application/protobuf"] = protorpc.NewCodec
In the client
// In the client send proto-rpc to be forwards compatible
client.DefaultContentType = "application/proto-rpc"
There are changes to application/json and application/protobuf to use raw formats
rather than json-rpc or proto-rpc. This will likely break behaviour via the api.
The easiest way to resolve this is to reset these as well but it causes further issue.
I would advise finding a common rolling path forward e.g a common compatible content-type/codec.
This is an unfortunate change that has to be made so we can process raw formats.
The old list of codecs and can be set as follows
import (
"github.com/micro/go-micro/server"
"github.com/micro/go-micro/client"
)
func init() {
codecs = map[string]codec.NewCodec{
"application/json": jsonrpc.NewCodec,
"application/json-rpc": jsonrpc.NewCodec,
"application/protobuf": protorpc.NewCodec,
"application/proto-rpc": protorpc.NewCodec,
"application/octet-stream": protorpc.NewCodec,
}
server.DefaultCodecs = codecs
client.DefaultCodecs = codecs
)
Endpoint
Method now moves to endpoint. In most places we have Endpoint specified except in the client/server abstractions.
This has now moved. Most should be unaffected. But be aware of the change. Any wrappers may break.