49 lines
951 B
Go
49 lines
951 B
Go
// Package env provides config from environment variables
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package env
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import (
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"encoding/json"
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"os"
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"strings"
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"github.com/micro/go-micro/v3/config"
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)
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type envConfig struct{}
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// NewConfig returns new config
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func NewConfig() (*envConfig, error) {
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return new(envConfig), nil
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}
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func formatKey(v string) string {
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if len(v) == 0 {
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return ""
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}
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v = strings.ToUpper(v)
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return strings.Replace(v, ".", "_", -1)
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}
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func (c *envConfig) Get(path string, options ...config.Option) (config.Value, error) {
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v := os.Getenv(formatKey(path))
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if len(v) == 0 {
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v = "{}"
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}
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return config.NewJSONValue([]byte(v)), nil
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}
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func (c *envConfig) Set(path string, val interface{}, options ...config.Option) error {
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key := formatKey(path)
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v, err := json.Marshal(val)
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if err != nil {
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return err
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}
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return os.Setenv(key, string(v))
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}
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func (c *envConfig) Delete(path string, options ...config.Option) error {
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v := formatKey(path)
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return os.Unsetenv(v)
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}
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