[QUESTION] Connection refused for my localhost API

[Tuhinpaul5]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

I am currently trying to fetch and display data from a fasttAPI endpoint http://localhost:8000/test. I have modified the data to be :

{
"msg": 0,
"code": 0,
["data"](http://localhost:8000/test): {
["apps"](http://localhost:8000/test): [
{
"category": "service",
"app": "jvm",
"status": 0,
"size": 2,
"availableSize": 0,
"unManageSize": 2,
"unAvailableSize": 0,
"unReachableSize": 0
},
{
"category": "service",
"app": "website",
"status": 0,
"size": 2,
"availableSize": 0,
"unManageSize": 2,
"unAvailableSize": 0,
"unReachableSize": 0
}
]
}
}

for testing.

My xml file is:

category: custom
app: testing3
name:
  zh-CN: testing3
  en-US: testing3
help:
  zh-CN: Hertzbeat 对 Hertzbeat 监控系统的通用指标进行测量监控。<br>您可以点击 “<i>新建 HertzBeat监控系统</i>” 并进行配置，或者选择“<i>更多操作</i>”，导入已有配置。
  en-US: Hertzbeat monitors HertzBeat Monitor through general performance metric. You could click the "<i>New HertzBeat Monitor</i>" button and proceed with the configuration or import an existing setup through the "<i>More Actions</i>" menu.
  zh-TW: Hertzbeat對Hertzbeat監控系統的通用名額進行量測監控。<br>您可以點擊“<i>新建HertzBeat監控系統</i>”並進行配寘，或者選擇“<i>更多操作</i>”，導入已有配寘。
helpLink:
  zh-CN: https://hertzbeat.apache.org/zh-cn/docs/help/hertzbeat
  en-US: https://hertzbeat.apache.org/docs/help/hertzbeat
params:
  - field: host
    name:
      zh-CN: 目标Host
      en-US: Target Host
    type: host
    required: true
    defaultValue: localhost
  - field: port
    name:
      zh-CN: 端口
      en-US: Port
    type: number
    range: '[0,65535]'
    required: true
    defaultValue: 8000
  - field: ssl
    name:
      zh-CN: 启用HTTPS
      en-US: HTTPS
    type: boolean
    required: true
    defaultValue: false
  - field: timeout
    name:
      zh-CN: 超时时间(ms)
      en-US: Timeout(ms)
    type: number
    required: false
    hide: true
    defaultValue: 5000
metrics:
  # the first metrics summary
  # attention: Built-in monitoring metrics contains (responseTime - Response time)
  - name: summary
    # metrics scheduling priority(0->127)->(high->low), metrics with the same priority will be scheduled in parallel
    # priority 0's metrics is availability metrics, it will be scheduled first, only availability metrics collect success will the scheduling continue
    priority: 0
    # collect metrics content
    fields:
      # metrics content contains field-metric name, type-metric type:0-number,1-string, instance-if is metrics, unit-metric unit('%','ms','MB')
      - field: app
        type: 1
        label: true
      - field: category
        type: 1
      - field: status
        type: 0
      - field: size
        type: 0
      - field: availableSize
        type: 0
    #  the protocol used for monitoring, eg: sql, ssh, http, telnet, wmi, snmp, sdk, we use HTTP protocol here
    protocol: http
    # the config content when protocol is http
    http:
      # host: ipv4 ipv6 domain
      host: ^_^host^_^
      # http port
      port: ^_^port^_^
      # http url, we don't need to enter a parameter here, just set the fixed value to /test
      url: /test
      timeout: ^_^timeout^_^
      # http method: GET POST PUT DELETE PATCH, default fixed value is GET
      method: POST
      # if enabled https, default value is false
      ssl: ^_^ssl^_^
      # http response data parse type: default-hertzbeat rule, jsonpath-jsonpath script, website-for website monitoring, we use jsonpath to parse response data here
      parseType: jsonPath
      parseScript: '$.data.apps.*'

Why is it showing connection refused?

[tomsun28]

Are you deploy hertzbeat in docker container? The inner container can not use localhost access local default.