解析yaml结构错误

Question

I'm having the following yaml , when I try to parse it I got error, any idea what could be missing here? im not sure how to struct the zone property.

This is the valid yaml

https://codebeautify.org/yaml-validator/cb42f23a

Error:

error in model extConfigYaml: *yaml: line 4: mapping values are not allowed in this context

type ExternalConfig struct {
    Landscape zone `yaml:"Landscape"`
}


type zone struct {
    zone models `yaml:"zone"`
}

type models struct {
    models []Model `yaml:"models"`
}

type Model struct {
    AppType     string `yaml:"app-type"`
    ServiceType string `yaml:"service-type"`
}

var external_config = []byte(`
Landscape:
  zone: zone1
   models:
    - app-type: app1
      service-type: GCP

    - app-type: app2
      service-type: AMAZON

  zone: zone2
   models:
    - app-type: app3
      service-type: AZURE
    - app-type: app4Í
      service-type: HEROKU
`)


extConfigYaml := ExternalConfig{}

err = yaml.Unmarshal([]byte(external_config), &extConfigYaml)
if err != nil {
    log.Fatalf("error in model extConfigYaml: %v", err)
}
fmt.Printf("%+v
", extConfigYaml)

Answer 1

According to the error:

error in model extConfigYaml: *yaml: line 4: mapping values are not allowed in this context

There is an error in the indentation of your provided yaml content in which the models indent level should match the zone indent level. Along with that there is no need to create a struct for zone since it is a string value but you have assigned it a model struct which contains models data. Also you should export the structs using uppercase letters.

Modify your code to the code below:

package main

import (
    "fmt"
    "log"

    "gopkg.in/yaml.v2"
)

type ExternalConfig struct {
    Landscape Zone `yaml:"Landscape"`
}

type Zone struct {
    Zone   string  `yaml:"zone"`
    Models []Model `yaml:"models"`
}

type Model struct {
    AppType     string `yaml:"app-type"`
    ServiceType string `yaml:"service-type"`
}

var external_config = []byte(`
Landscape:
  zone: zone1
  models:
    - app-type: app1
      service-type: GCP
    - app-type: app2
      service-type: AMAZON
  zone: zone2
  models:
    - app-type: app3
      service-type: AZURE
    - app-type: app4Í
      service-type: HEROKU
`)

func main() {

    extConfigYaml := ExternalConfig{}

    err := yaml.Unmarshal(external_config, &extConfigYaml)
    if err != nil {
        log.Fatalln("error in model extConfigYaml: %v", err)
    }
    fmt.Printf("%+v
", extConfigYaml)
}

Working Code on Playground