dione/config/config.go

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package config
import (
"fmt"
"github.com/spf13/viper"
)
const (
CacheTypeInMemory = "memory"
CacheTypeRedis = "redis"
BlockchainDatabaseInMemory = "memory"
BlockChainDatabaseLMDB = "lmdb"
)
type Config struct {
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ListenPort int `mapstructure:"listen_port"`
ListenAddr string `mapstructure:"listen_addr"`
IsBootstrap bool `mapstructure:"is_bootstrap"`
BootstrapNodes []string `mapstructure:"bootstrap_node_multiaddr"`
Rendezvous string `mapstructure:"rendezvous"`
Ethereum EthereumConfig `mapstructure:"ethereum"`
Filecoin FilecoinConfig `mapstructure:"filecoin"`
PubSub PubSubConfig `mapstructure:"pubsub"`
Store StoreConfig `mapstructure:"store"`
ConsensusMinApprovals int `mapstructure:"consensus_min_approvals"`
Redis RedisConfig `mapstructure:"redis"`
CacheType string `mapstructure:"cache_type"`
Blockchain BlockchainConfig `mapstructure:"blockchain"`
PrivateKeyPath string `mapstructure:"private_key_path"`
}
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type EthereumConfig struct {
GatewayAddress string `mapstructure:"gateway_address"`
ChainID int `mapstructure:"chain_id"`
PrivateKey string `mapstructure:"private_key"`
MnemonicPhrase string `mapstructure:"mnemonic_phrase"`
HDDerivationPath string `mapstructure:"hd_derivation_path"`
DioneOracleContractAddress string `mapstructure:"oracle_contract_address"`
DioneStakingContractAddress string `mapstructure:"staking_contract_address"`
DisputeContractAddress string `mapstructure:"dispute_contract_address"`
DisputeVoteWindow int `mapstructure:"dispute_vote_window"` // in secs
}
type FilecoinConfig struct {
LotusHost string `mapstructure:"lotusHost"`
LotusToken string `mapstructure:"lotusToken"`
}
type PubSubConfig struct {
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ServiceTopicName string `mapstructure:"service_topic_name"`
}
type StoreConfig struct {
DatabaseURL string `mapstructure:"database_url"`
}
type RedisConfig struct {
Addr string `mapstructure:"redis_addr"`
Password string `mapstructure:"redis_password"`
DB int `mapstructure:"redis_db"`
}
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type BlockchainConfig struct {
DatabaseType string `mapstructure:"database_type"`
LMDB struct {
DatabasePath string `mapstructure:"database_path"`
} `mapstructure:"lmdb"`
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}
// NewConfig creates a new config based on default values or provided .env file
func NewConfig(configPath string) (*Config, error) {
dbName := "dione"
username := "user"
password := "password"
dbURL := fmt.Sprintf("host=localhost user=%s password=%s dbname=%s sslmode=disable", username, password, dbName)
cfg := &Config{
ListenAddr: "localhost",
ListenPort: 8000,
BootstrapNodes: []string{"/ip4/127.0.0.1/tcp/0"},
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Rendezvous: "dione",
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Ethereum: EthereumConfig{
PrivateKey: "",
},
PubSub: PubSubConfig{
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ServiceTopicName: "dione",
},
Store: StoreConfig{
DatabaseURL: dbURL,
},
Redis: RedisConfig{
Addr: "redisDB:6379",
Password: "",
DB: 0,
},
CacheType: "in-memory",
}
viper.SetConfigFile(configPath)
err := viper.ReadInConfig()
if err != nil {
return nil, err
}
err = viper.Unmarshal(cfg)
if err != nil {
return nil, err
}
return cfg, nil
}