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info.go
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/
info.go
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/*
* Copyright 2019 Insolar Technologies
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package api
import (
"context"
"net/http"
"github.com/insolar/insolar/core/utils"
"github.com/insolar/insolar/instrumentation/inslogger"
"github.com/pkg/errors"
)
// InfoArgs is arguments that Info service accepts.
type InfoArgs struct{}
// InfoReply is reply for Info service requests.
type InfoReply struct {
RootDomain string
RootMember string
NodeDomain string
TraceID string
}
// InfoService is a service that provides API for getting info about genesis objects.
type InfoService struct {
runner *Runner
}
// NewInfoService creates new Info service instance.
func NewInfoService(runner *Runner) *InfoService {
return &InfoService{runner: runner}
}
// Get returns info about genesis objects.
//
// Request structure:
// {
// "jsonrpc": "2.0",
// "method": "info.Get",
// "id": str|int|null
// }
//
// Response structure:
// {
// "jsonrpc": "2.0",
// "result": {
// "RootDomain": str, // reference to RootDomain instance
// "RootMember": str, // reference to RootMember instance
// "NodeDomain": str, // reference to NodeDomain instance
// "TraceID": str // traceID for request
// },
// "id": str|int|null // same as in request
// }
//
func (s *InfoService) Get(r *http.Request, args *InfoArgs, reply *InfoReply) error {
ctx, inslog := inslogger.WithTraceField(context.Background(), utils.RandTraceID())
inslog.Infof("[ INFO ] Incoming request: %s", r.RequestURI)
rootDomain := s.runner.GenesisDataProvider.GetRootDomain(ctx)
if rootDomain == nil {
inslog.Error("[ INFO ] rootDomain ref is nil")
return errors.New("[ INFO ] rootDomain ref is nil")
}
rootMember, err := s.runner.GenesisDataProvider.GetRootMember(ctx)
if err != nil {
inslog.Error(errors.Wrap(err, "[ INFO ] Can't get rootMember ref"))
return errors.Wrap(err, "[ INFO ] Can't get rootMember ref")
}
if rootMember == nil {
inslog.Error("[ INFO ] rootMember ref is nil")
return errors.New("[ INFO ] rootMember ref is nil")
}
nodeDomain, err := s.runner.GenesisDataProvider.GetNodeDomain(ctx)
if err != nil {
inslog.Error(errors.Wrap(err, "[ INFO ] Can't get nodeDomain ref"))
return errors.Wrap(err, "[ INFO ] Can't get nodeDomain ref")
}
if nodeDomain == nil {
inslog.Error("[ INFO ] nodeDomain ref is nil")
return errors.New("[ INFO ] nodeDomain ref is nil")
}
reply.RootDomain = rootDomain.String()
reply.RootMember = rootMember.String()
reply.NodeDomain = nodeDomain.String()
reply.TraceID = utils.RandTraceID()
return nil
}