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我需要将响应数据设置为 context.forecast。我尝试在 if 循环中使用 GET 方法,但上下文变得未定义。有没有办法在外面定义 GET 函数,然后调用将值放入数据变量中?

注意:location 变量需要传入 GET URL

getForecast({context, entities}) {
    var location = firstEntityValue(entities, 'location');
    if (location) {
      delete context.missingLocation;
      //TODO
      //var data = GET URL
        context.forecast = data
      })
    } else {
      context.missingLocation = true;
      delete context.forecast;
    }
    return context;
  }
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