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75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
package exchange
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import (
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"fmt"
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"os"
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"strings"
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"github.com/c9s/bbgo/pkg/exchange/binance"
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"github.com/c9s/bbgo/pkg/exchange/bitget"
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"github.com/c9s/bbgo/pkg/exchange/bybit"
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"github.com/c9s/bbgo/pkg/exchange/kucoin"
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"github.com/c9s/bbgo/pkg/exchange/max"
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"github.com/c9s/bbgo/pkg/exchange/okex"
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"github.com/c9s/bbgo/pkg/types"
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)
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func NewPublic(exchangeName types.ExchangeName) (types.Exchange, error) {
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exMinimal, err := New(exchangeName, "", "", "")
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if err != nil {
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return nil, err
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}
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if ex, ok := exMinimal.(types.Exchange); ok {
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return ex, nil
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}
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return nil, fmt.Errorf("exchange %T does not implement types.Exchange", exMinimal)
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}
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func New(n types.ExchangeName, key, secret, passphrase string) (types.ExchangeMinimal, error) {
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switch n {
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case types.ExchangeBinance:
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return binance.New(key, secret), nil
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case types.ExchangeMax:
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return max.New(key, secret), nil
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case types.ExchangeOKEx:
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return okex.New(key, secret, passphrase)
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case types.ExchangeKucoin:
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return kucoin.New(key, secret, passphrase), nil
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case types.ExchangeBitget:
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return bitget.New(key, secret, passphrase), nil
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case types.ExchangeBybit:
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return bybit.New(key, secret)
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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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// NewWithEnvVarPrefix allocate and initialize the exchange instance with the given environment variable prefix
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// When the varPrefix is a empty string, the default exchange name will be used as the prefix
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func NewWithEnvVarPrefix(n types.ExchangeName, varPrefix string) (types.ExchangeMinimal, error) {
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if len(varPrefix) == 0 {
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varPrefix = n.String()
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}
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varPrefix = strings.ToUpper(varPrefix)
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key := os.Getenv(varPrefix + "_API_KEY")
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secret := os.Getenv(varPrefix + "_API_SECRET")
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if len(key) == 0 || len(secret) == 0 {
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return nil, fmt.Errorf("can not initialize exchange %s: empty key or secret, env var prefix: %s", n, varPrefix)
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}
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passphrase := os.Getenv(varPrefix + "_API_PASSPHRASE")
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return New(n, key, secret, passphrase)
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}
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