mirror of
https://github.com/d0zingcat/gocryptotrader.git
synced 2026-05-17 23:16:52 +00:00
10f7ff3236
* Adds custom strategy * docs and structure * docs * rn * Documents plugins, adds custom strat config * mini fixes. Fleshes strategy test * docgen * Updates plugins to allow for multiple strategies to be loaded * docs * docs regen * fix doc accuracy * why did I add the word custom?
45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package strategies
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import (
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"errors"
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"fmt"
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"plugin"
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"github.com/thrasher-corp/gocryptotrader/backtester/eventhandlers/strategies"
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gctcommon "github.com/thrasher-corp/gocryptotrader/common"
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)
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var errNoStrategies = errors.New("no strategies contained in plugin. please refer to docs")
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// LoadCustomStrategies utilises Go's plugin system to load
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// custom strategies into the backtester.
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func LoadCustomStrategies(strategyPluginPath string) error {
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p, err := plugin.Open(strategyPluginPath)
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if err != nil {
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return fmt.Errorf("could not open plugin: %w", err)
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}
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v, err := p.Lookup("GetStrategies")
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if err != nil {
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return fmt.Errorf("could not lookup plugin. Plugin must have function `GetStrategy`. Error: %w", err)
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}
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customStrategies, ok := v.(func() []strategies.Handler)
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if !ok {
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return gctcommon.GetAssertError("[]strategies.Handler", customStrategies)
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}
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return addStrategies(customStrategies())
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}
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func addStrategies(s []strategies.Handler) error {
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if len(s) == 0 {
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return errNoStrategies
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}
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var err error
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for i := range s {
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err = strategies.AddStrategy(s[i])
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if err != nil {
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return err
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}
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}
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return nil
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}
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