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49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package cmdutil
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import (
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"fmt"
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"github.com/pkg/errors"
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"github.com/spf13/viper"
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"github.com/c9s/bbgo/pkg/exchange/binance"
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"github.com/c9s/bbgo/pkg/exchange/max"
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"github.com/c9s/bbgo/pkg/types"
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)
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func NewExchangeWithEnvVarPrefix(n types.ExchangeName, varPrefix string) (types.Exchange, error) {
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if len(varPrefix) == 0 {
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varPrefix = n.String()
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}
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switch n {
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case types.ExchangeBinance:
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key := viper.GetString(varPrefix + "-api-key")
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secret := viper.GetString(varPrefix + "-api-secret")
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if len(key) == 0 || len(secret) == 0 {
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return nil, errors.New("binance: empty key or secret")
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}
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return binance.New(key, secret), nil
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case types.ExchangeMax:
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key := viper.GetString(varPrefix + "-api-key")
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secret := viper.GetString(varPrefix + "-api-secret")
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if len(key) == 0 || len(secret) == 0 {
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return nil, errors.New("max: empty key or secret")
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}
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return max.New(key, secret), nil
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default:
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return nil, fmt.Errorf("unsupported exchange: %v", n)
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}
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}
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// NewExchange constructor exchange object from viper config.
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func NewExchange(n types.ExchangeName) (types.Exchange, error) {
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return NewExchangeWithEnvVarPrefix(n, "")
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}
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