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seed.go
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seed.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"
)
// SeedArgs is arguments that Seed service accepts.
type SeedArgs struct{}
// SeedReply is reply for Seed service requests.
type SeedReply struct {
Seed []byte
TraceID string
}
// SeedService is a service that provides API for getting new seed.
type SeedService struct {
runner *Runner
}
// NewSeedService creates new Seed service instance.
func NewSeedService(runner *Runner) *SeedService {
return &SeedService{runner: runner}
}
// Get returns new active seed.
//
// Request structure:
// {
// "jsonrpc": "2.0",
// "method": "seed.Get",
// "id": str|int|null
// }
//
// Response structure:
// {
// "jsonrpc": "2.0",
// "result": {
// "Seed": str, // correct seed for new Call request
// "TraceID": str // traceID for request
// },
// "id": str|int|null // same as in request
// }
//
func (s *SeedService) Get(r *http.Request, args *SeedArgs, reply *SeedReply) error {
traceID := utils.RandTraceID()
_, inslog := inslogger.WithTraceField(context.Background(), traceID)
inslog.Infof("[ SeedService.Get ] Incoming request: %s", r.RequestURI)
seed, err := s.runner.SeedGenerator.Next()
if err != nil {
return errors.Wrap(err, "[ GetSeed ]")
}
s.runner.SeedManager.Add(*seed)
reply.Seed = seed[:]
reply.TraceID = traceID
return nil
}