github.com/stafiprotocol/go-substrate-rpc-client@v1.4.7/types/digest.go (about)

     1  // Go Substrate RPC Client (GSRPC) provides APIs and types around Polkadot and any Substrate-based chain RPC calls
     2  //
     3  // Copyright 2020 Stafi Protocol
     4  //
     5  // Licensed under the Apache License, Version 2.0 (the "License");
     6  // you may not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  
    17  package types
    18  
    19  import (
    20  	"encoding/json"
    21  )
    22  
    23  // Digest contains logs
    24  type Digest []DigestItem
    25  
    26  // UnmarshalJSON fills u with the JSON encoded byte array given by b
    27  func (d *Digest) UnmarshalJSON(bz []byte) error {
    28  	var tmp struct {
    29  		Logs []string `json:"logs"`
    30  	}
    31  	if err := json.Unmarshal(bz, &tmp); err != nil {
    32  		return err
    33  	}
    34  	*d = make([]DigestItem, len(tmp.Logs))
    35  	for i, log := range tmp.Logs {
    36  		err := DecodeFromHexString(log, &(*d)[i])
    37  		if err != nil {
    38  			return err
    39  		}
    40  	}
    41  	return nil
    42  }
    43  
    44  // MarshalJSON returns a JSON encoded byte array of u
    45  func (d Digest) MarshalJSON() ([]byte, error) {
    46  	logs := make([]string, len(d))
    47  	var err error
    48  	for i, di := range d {
    49  		logs[i], err = EncodeToHexString(di)
    50  		if err != nil {
    51  			return nil, err
    52  		}
    53  	}
    54  	return json.Marshal(struct {
    55  		Logs []string `json:"logs"`
    56  	}{
    57  		Logs: logs,
    58  	})
    59  }