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submitvalidatorregistrations.go
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/
submitvalidatorregistrations.go
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// Copyright © 2022 Attestant Limited.
// 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 http
import (
"bytes"
"context"
"encoding/json"
"time"
"github.com/attestantio/go-builder-client/api"
"github.com/attestantio/go-builder-client/spec"
"github.com/pkg/errors"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/trace"
)
var submitValidatorRegistrationsChunkSize = 500
// SubmitValidatorRegistrations submits a validator registration.
func (s *Service) SubmitValidatorRegistrations(ctx context.Context,
registrations []*api.VersionedSignedValidatorRegistration,
) error {
ctx, span := otel.Tracer("attestantio.go-builder-client.http").Start(ctx, "SubmitValidatorRegistrations", trace.WithAttributes(
attribute.Int("validators", len(registrations)),
))
defer span.End()
started := time.Now()
if len(registrations) == 0 {
return errors.New("no registrations supplied")
}
var err error
if len(registrations) <= submitValidatorRegistrationsChunkSize {
err = s.submitValidatorRegistrations(ctx, registrations)
} else {
err = s.submitChunkedValidatorRegistrations(ctx, registrations)
}
if err != nil {
monitorOperation(s.Address(), "submit validator registrations", "failed", time.Since(started))
return err
}
monitorOperation(s.Address(), "submit validator registrations", "succeeded", time.Since(started))
return nil
}
func (s *Service) submitValidatorRegistrations(ctx context.Context,
registrations []*api.VersionedSignedValidatorRegistration,
) error {
// Unwrap versioned registrations.
var version *spec.BuilderVersion
var unversionedRegistrations []interface{}
for _, registration := range registrations {
if registration == nil {
return errors.New("nil registration supplied")
}
// Ensure consistent versioning.
if version == nil {
version = ®istration.Version
} else if *version != registration.Version {
return errors.New("registrations must all be of the same version")
}
// Append to unversionedRegistrations.
switch registration.Version {
case spec.BuilderVersionV1:
unversionedRegistrations = append(unversionedRegistrations, registration.V1)
default:
return errors.New("unknown validator registration version")
}
}
specJSON, err := json.Marshal(unversionedRegistrations)
if err != nil {
return errors.Wrap(err, "failed to marshal JSON")
}
_, _, err = s.post(ctx, "/eth/v1/builder/validators", ContentTypeJSON, bytes.NewBuffer(specJSON))
if err != nil {
return errors.Wrap(err, "failed to submit validator registration")
}
return nil
}
// submitChunkedValidatorRegistrations submits validator registrations in chunks.
func (s *Service) submitChunkedValidatorRegistrations(ctx context.Context,
registrations []*api.VersionedSignedValidatorRegistration,
) error {
chunkSize := submitValidatorRegistrationsChunkSize
for i := 0; i < len(registrations); i += chunkSize {
chunkStart := i
chunkEnd := i + chunkSize
if len(registrations) < chunkEnd {
chunkEnd = len(registrations)
}
chunk := registrations[chunkStart:chunkEnd]
err := s.submitValidatorRegistrations(ctx, chunk)
if err != nil {
return errors.Wrap(err, "failed to submit chunk")
}
}
return nil
}