mirror of
https://github.com/foomo/keel.git
synced 2025-10-16 12:35:34 +00:00
89 lines
2.0 KiB
Go
89 lines
2.0 KiB
Go
package main
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import (
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"fmt"
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"net/http"
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"os"
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"github.com/davecgh/go-spew/spew"
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"github.com/foomo/keel"
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"github.com/foomo/keel/config"
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"github.com/foomo/keel/log"
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)
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type (
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Nested struct {
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Int int `yaml:"int"`
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Bool bool `yaml:"bool"`
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String string `yaml:"string"`
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CamelCaseString string `yaml:"camelCaseString"`
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SnakeCaseString string `yaml:"snake_case_string"`
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}
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Config struct {
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Int int `yaml:"int"`
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Bool bool `yaml:"bool"`
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String string `yaml:"string"`
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Nested Nested `yaml:"nested"`
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}
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)
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func main() {
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// set env vars to override e.g. example.string
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_ = os.Setenv("ENV_STRING", "bar")
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_ = os.Setenv("STRUCT_STRING", "bar")
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_ = os.Setenv("STRUCT_NESTED_STRING", "bar")
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_ = os.Setenv("STRUCT_NESTED_CAMELCASESTRING", "bar")
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_ = os.Setenv("STRUCT_NESTED_SNAKE_CASE_STRING", "bar")
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svr := keel.NewServer(
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keel.WithHTTPViperService(true),
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)
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l := svr.Logger()
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c := svr.Config()
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// get config vars by key
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intFn := config.GetInt(c, "env.int", 1)
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boolFn := config.GetBool(c, "env.bool", true)
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stringFn := config.GetString(c, "env.string", "foo")
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structFn, err := config.GetStruct(c, "struct", Config{
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Int: 66,
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Bool: true,
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String: "foo",
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Nested: Nested{
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Int: 13,
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Bool: false,
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String: "foo",
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CamelCaseString: "foo",
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SnakeCaseString: "foo",
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},
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})
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log.Must(l, err, "failed to create struct config fn")
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// create demo service
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svs := http.NewServeMux()
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svs.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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var structCfg Config
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if err := structFn(&structCfg); err != nil {
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panic(err)
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}
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write([]byte(fmt.Sprintf("intCfg: %d\n", intFn())))
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_, _ = w.Write([]byte(fmt.Sprintf("boolCfg: %v\n", boolFn())))
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_, _ = w.Write([]byte(fmt.Sprintf("stringCfg: %s\n", stringFn())))
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_, _ = w.Write([]byte(fmt.Sprintf("stuctCfg: %s\n", spew.Sdump(structCfg))))
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})
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svr.AddService(
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keel.NewServiceHTTP(l, "demo", ":8080", svs),
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)
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svr.Run()
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}
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// curl localhost:8080
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// localhost:9300/config
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