无法使用gopkg.in/yaml.v2解压缩具有缩进或空值的yaml文件

Question

I have the following YML file called test.yml

user_name:Agent1
org_info:
  first:hello
  second:world

I tried to unmarshal test.yml with the following golang code

package main

import (
  "log"
  "io/ioutil"
  "gopkg.in/yaml.v2"
)

func main() {

  content, _ := ioutil.ReadFile("./test.yml")
  var t interface{}
  yaml.Unmarshal(content, &t)
  log.Println(t)
}

But the log.Println(t) gives nil. I reduced the test.yml file to this:

user_name:Agent1
org_info:

But the log.Println(t) still gives nil.

How do I use golang to unmarshal a yaml file that has an unpredictable schema with fields that have no values or fields that lead to nested and indented sub fields?

Or is there another golang yaml parser I should be using?

Answer 1

yaml.Unmarshal() returns an error:

yaml: line 2: mapping values are not allowed in this context

Never skip error checks:

var t interface{}
err = yaml.Unmarshal(content, &t)
if err != nil {
    log.Fatal(err)
}

Adding the missing spaces after the colon should, make them into YAML value indicators:

user_name: Agent1
org_info:
  first: hello
  second: world