Maina Wycliffe mainawycliffe
mainawycliffe
/ index.html
Created
December 8, 2022 10:22
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| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <script src="wasm_exec.js"></script> | |
| <script> | |
| const go = new Go(); | |
| WebAssembly.instantiateStreaming(fetch('wasm.wasm'), go.importObject).then((result) => { | |
| go.run(result.instance); | |
| }); | |
| </script> |
mainawycliffe
/ ReadConfig.go
Created
November 6, 2022 22:37
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| var yamlExample = []byte(` | |
| {"DB":"SOME_URL","PASSWORD":"pass"} | |
| `) | |
| viper.ReadConfig(bytes.NewBuffer(yamlExample)) | |
| viper.SetConfigType("json") | |
| viper.Get("DB") |
mainawycliffe
/ main.go
Created
November 6, 2022 22:23
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| func main() { | |
| // set out config format type - we will use json, but you can use yaml, toml, etc. | |
| viper.SetConfigType("json") | |
| // this function will read the config from firestore | |
| go ReadFirestoreConfigs() | |
| // delay to allow the config to be read | |
| time.Sleep(1 * time.Second) |
mainawycliffe
/ viper_firestore_configs.go
Last active
November 6, 2022 22:21
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| func ReadFirestoreConfigs() { | |
| ctx := context.Background() | |
| // we will use a service account to authenticate and authorize our app | |
| clientOptions := option.WithCredentialsFile("path/to/serviceAccountKey.json") | |
| app, err := firebase.NewApp(ctx, nil, clientOptions) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| client, err := app.Firestore(ctx) | |
| if err != nil { |
mainawycliffe
/ viper_polling.go
Last active
November 6, 2022 22:09
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| go func(){ | |
| for { | |
| time.Sleep(time.Second * 5) // delay after each request for 5 seconds | |
| // read config from source | |
| // update viper | |
| viper.ReadConfig(bytes.NewBuffer(jsonData)) | |
| } | |
| }() |
mainawycliffe
/ viper_watch_firestore.go
Created
November 6, 2022 22:03
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| // listen for changes | |
| streamChanges := client.Doc("configs/config").Snapshots(ctx) | |
| defer streamChanges.Stop() | |
| for { | |
| snap, err := streamChanges.Next() | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| jsonData, err := json.Marshal(snap.Data()) | |
| if err != nil { |
mainawycliffe
/ viper_ReadConfig.go
Last active
November 6, 2022 21:50
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| data := doc.Data() | |
| jsonData, err := json.Marshal(data) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| err = viper.ReadConfig(bytes.NewBuffer(jsonData)) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } |
mainawycliffe
/ firestore_viper_read.go
Last active
November 6, 2022 21:49
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| doc, err := client.Collection("configs").Doc("config").Get(ctx) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| data := doc.Data() |
mainawycliffe
/ firestore_viper_client.go
Last active
November 6, 2022 21:37
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| // we will use a service account to authenticate and authorize our app | |
| clientOptions := option.WithCredentialsFile("path/to/serviceAccountKey.json") | |
| app, err := firebase.NewApp(context.TODO(), nil, clientOptions) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| client, err := app.Firestore(ctx) | |
| if err != nil { | |
| log.Fatalln(err) |
mainawycliffe
/ viper_BindEnv.go
Created
October 26, 2022 18:48
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| viper.SetEnvPrefix("APP_") | |
| // binds "APP_PORT" or "APP_DB_PORT" to config key "port" | |
| err := viper.BindEnv("port", "PORT", "DB_PORT" ) | |
| if err != nil { | |
| log.Fatalf("Error binding env: %v", err) | |
| } |
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