configopaque

cfg := &ExampleConfigMap{
	Censored: map[string]configopaque.String{
		"token": "sensitivetoken",
	},
	Uncensored: map[string]string{
		"key":   "cloud.zone",
		"value": "zone-1",
	},
}

// yaml marshaling
bytes, err := yaml.Marshal(cfg)
if err != nil {
	panic(err)
}
fmt.Printf("encoded cfg (YAML) is:\n%s\n\n", string(bytes))

Output:

encoded cfg (YAML) is:
censored:
    token: '[REDACTED]'
uncensored:
    key: cloud.zone
    value: zone-1

package main

import (
	"encoding/json"
	"fmt"

	"go.opentelemetry.io/collector/config/configopaque"
)

func main() {
	cfg := &ExampleConfigSlice{
		Censored:   []configopaque.String{"data", "is", "sensitive"},
		Uncensored: []string{"data", "is", "not", "sensitive"},
	}

	// JSON marshaling
	bytes, err := json.MarshalIndent(cfg, "", "  ")
	if err != nil {
		panic(err)
	}
	fmt.Printf("encoded cfg (JSON) is\n%s\n\n", string(bytes))
}

type ExampleConfigSlice struct {
	Censored   []configopaque.String
	Uncensored []string
}

Output:

encoded cfg (JSON) is
{
  "Censored": [
    "[REDACTED]",
    "[REDACTED]",
    "[REDACTED]"
  ],
  "Uncensored": [
    "data",
    "is",
    "not",
    "sensitive"
  ]
}

rawBytes := []byte(`{
		"Censored":   "sensitive",
		"Uncensored": "not sensitive"
	}`)

// JSON unmarshaling
var cfg ExampleConfigString
err := json.Unmarshal(rawBytes, &cfg)
if err != nil {
	panic(err)
}

// YAML marshaling
bytes, err := yaml.Marshal(cfg)
if err != nil {
	panic(err)
}
fmt.Printf("encoded cfg (YAML) is:\n%s\n\n", string(bytes))

Output:

encoded cfg (YAML) is:
censored: '[REDACTED]'
uncensored: not sensitive