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blobsbundle_yaml.go
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/
blobsbundle_yaml.go
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// Copyright © 2023 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 deneb
import (
"bytes"
"encoding/json"
"fmt"
"github.com/goccy/go-yaml"
"github.com/pkg/errors"
)
// blobsBundleYAML is the YAML representation of a blob bundle.
type blobsBundleYAML struct {
Commitments []string `yaml:"commitments"`
Proofs []string `yaml:"proofs"`
Blobs []string `yaml:"blobs"`
}
// MarshalYAML implements yaml.Marshaler.
func (b *BlobsBundle) MarshalYAML() ([]byte, error) {
blobKzgCommitments := make([]string, len(b.Commitments))
for i := range b.Commitments {
blobKzgCommitments[i] = b.Commitments[i].String()
}
blobKzgProofs := make([]string, len(b.Proofs))
for i := range b.Proofs {
blobKzgProofs[i] = b.Proofs[i].String()
}
blobs := make([]string, len(b.Blobs))
for i := range b.Blobs {
blobs[i] = fmt.Sprintf("%#x", b.Blobs[i])
}
yamlBytes, err := yaml.MarshalWithOptions(&blobsBundleYAML{
Commitments: blobKzgCommitments,
Proofs: blobKzgProofs,
Blobs: blobs,
}, yaml.Flow(true))
if err != nil {
return nil, err
}
return bytes.ReplaceAll(yamlBytes, []byte(`"`), []byte(`'`)), nil
}
// UnmarshalYAML implements yaml.Unmarshaler.
func (b *BlobsBundle) UnmarshalYAML(input []byte) error {
// We unmarshal to the JSON struct to save on duplicate code.
var data blobsBundleJSON
if err := yaml.Unmarshal(input, &data); err != nil {
return errors.Wrap(err, "failed to unmarshal YAML")
}
jsonBytes, err := json.Marshal(data)
if err != nil {
return errors.Wrap(err, "failed to marshal JSON")
}
return b.UnmarshalJSON(jsonBytes)
}