Question

我在CoffeeScript中创建了一个调用Jira REST API的函数，而不是返回完整的json对象，我只想返回一个sprint id值。

但它总是返回Object ??

这是功能：

jiraGetActiveSprintId = (res) ->
  options =
    rejectUnauthorized: false
  returnMsg = -1
  auth = 'Basic ' + new Buffer("user" + ':' + "passw").toString('base64');
  robot.http("http://jira.rabobank.nl/rest/greenhopper/1.0/integration/teamcalendars/sprint/list?jql=project+%3D+TEAMNAME+and+Sprint+not+in+closedSprints()", options)
    .headers(Authorization: auth, Accept: 'application/json')
    .get() (err, response, body) ->
      if err
        -2
      if response.statusCode is 404
        -3
      if response.statusCode is 200
        data = JSON.parse body
        ab=data.sprints[0].id
        return ab

这就是我调用函数的方式：

sprId = jiraGetActiveSprintId(res)
console.log('sprId:' + sprId)

但是这是控制台.log显示：

sprId：[object Object]

为什么不返回变量ab？

如果我记录返回的对象，我得到：

sprId: ScopedClient {
  options:
   { protocol: 'http:',
     slashes: true,
     auth: null,
     host: 'jira.bla.nl',
     port: null,
     hostname: 'jira.bla.nl',
     hash: null,
     query: { jql: 'project = TEAM and Sprint not in closedSprints()' },
     pathname: '/rest/greenhopper/1.0/integration/teamcalendars/sprint/list',
     path: '/rest/greenhopper/1.0/integration/teamcalendars/sprint/list?jql=project+%3D+TEAM+and+Sprint+not+in+closedSprints()',
     rejectUnauthorized: false,
     headers:
      { 'User-Agent': 'Hubot/2.18.0',
        Authorization: 'Basic ASBC123478WxCb29tMQ==',
        Accept: 'application/json' },
        encoding: 'utf-8' },
  passthroughOptions: { rejectUnauthorized: false } }

好的，我找到了一个解决方法，我现在明白，由于调用的异步性质，你会收回一个承诺。所以当数据（sprintId）可用时，我更改了代码以调用另一种方法。不确定这是否是最好的解决方案，但至少它是有效的。

jiraGetActiveSprintId = (res, functionToContinueWith) ->
  options =
    rejectUnauthorized: false
  returnMsg = -1
  auth = 'Basic ' + new Buffer('user' + ':' + 'password').toString('base64');
  robot.http("http://jira.rabobank.nl/rest/greenhopper/1.0/integration/teamcalendars/sprint/list?jql=project+%3D+TEAM+and+Sprint+not+in+closedSprints()", options)
    .headers(Authorization: auth, Accept: 'application/json')
    .get() (err, response, body) ->
      if err
        id=-2
       console.log "STATUS=" + response.statusCode
      if response.statusCode is 200
        data = JSON.parse body
        functionToContinueWith(res, data.sprints[0].id)
      if response.statusCode is 404
        id=-3


continueJiraGetActiveSprintIssues = (res, sprintId) ->
  console.log('sprintId:', sprintId)

jiraGetActiveSprintIssues = (res, issueType) ->
  jiraGetActiveSprintId(res, continueJiraGetActiveSprintIssues)

Answer 1

您的函数未返回id。它返回一个promise对象。

尝试这样的事情：

sprId = jiraGetActiveSprintId(res)
sprId.then (id) ->
  console.log('sprId:' + id)

CoffeeScript如何返回字符串而不是Object对象

1 个答案: