44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package config
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import (
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"encoding/json"
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"fmt"
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"log"
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"os"
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)
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// Config - This struct will hold configuration components.
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type Config struct {
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Resolver string `json:"resolver"`
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ResolverPort int `json:"resolverPort"`
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Domains []string `json:"domains"`
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}
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//GetConfig gets the configuration values for the api using the file in the supplied configPath.
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func GetConfig(configPath string, debug bool) (Config, error) {
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if _, err := os.Stat(configPath); os.IsNotExist(err) {
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return Config{}, fmt.Errorf("could not find the config file at path %s", configPath)
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}
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if debug {
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log.Println("Loading Configuration File: " + configPath)
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}
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return loadConfigFromFile(configPath)
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}
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//if the config loaded from the file errors, no defaults will be loaded and the app will exit.
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func loadConfigFromFile(configPath string) (conf Config, err error) {
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file, err := os.Open(configPath)
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if err != nil {
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log.Printf("Error opening config file: %v", err)
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} else {
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defer file.Close()
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err = json.NewDecoder(file).Decode(&conf)
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if err != nil {
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log.Printf("Error decoding config file: %v", err)
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}
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}
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return conf, err
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}
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