amazon-web-services - requestParameters 返回 "Invalid mapping expression specified: true"

Question

我正在配置 lambda 函数的 API 网关与 Serverless Framework 的集成版本 0.4.2。
我的问题是定义端点的请求参数。 AWS docs for API gateway条目说:

requestParameters

Represents request parameters that can be accepted by Amazon API Gateway. Request parameters are represented as a key/value map, with a source as the key and a Boolean flag as the value. The Boolean flag is used to specify whether the parameter is required. A source must match the pattern method.request.{location}.{name}, where location is either querystring, path, or header. name is a valid, unique parameter name. Sources specified here are available to the integration for mapping to integration request parameters or templates.

据我了解，s-function.json 中的配置直接提供给 AWS CLI，因此我以以下格式指定了请求参数:"method.request.querystring.startYear": true .但是，我收到了 Invalid mapping expression specified: true错误。我也试过将配置指定为 "method.request.querystring.startYear": "true"结果相同。s-function.json :

{
    "name": "myname",
    // etc...
    "endpoints": [
        {
            "path": "mypath",
            "method": "GET",
            "type": "AWS",
            "authorizationType": "none",
            "apiKeyRequired": false,
            "requestParameters": {
                "method.request.querystring.startYear": true,
                "method.request.querystring.startMonth": true,
                "method.request.querystring.startDay": true,
                "method.request.querystring.currentYear": true,
                "method.request.querystring.currentMonth": true,
                "method.request.querystring.currentDay": true,
                "method.request.querystring.totalDays": true,
                "method.request.querystring.volume": true,
                "method.request.querystring.userId": true
            },
            // etc...
        }
    ],
    "events": []
}

有任何想法吗？提前致谢!

Answer 1

它看起来像 requestParameters在 s-function.json文件适用于 configuring the integration request section ，所以我最终使用了:

"requestParameters": {
    "integration.request.querystring.startYear" : "method.request.querystring.startYear",
    "integration.request.querystring.startMonth" : "method.request.querystring.startMonth",
    "integration.request.querystring.startDay" : "method.request.querystring.startDay",
    "integration.request.querystring.currentYear" : "method.request.querystring.currentYear",
    "integration.request.querystring.currentMonth" : "method.request.querystring.currentMonth",
    "integration.request.querystring.currentDay" : "method.request.querystring.currentDay",
    "integration.request.querystring.totalDays" : "method.request.querystring.totalDays",
    "integration.request.querystring.volume" : "method.request.querystring.volume",
    "integration.request.querystring.userId" : "method.request.querystring.userId"
},

这最终将它们自动添加到 方法请求 仪表板上的部分也是:



然后我可以在映射模板中使用它们将它们转换为方法帖子，该帖子将作为 event 发送。进入我的 Lambda 函数。现在我有一个我正在使用的特定映射模板，但我将来可能会使用 Alua K's suggested method以通用方式映射所有输入，这样我就不必为每个函数配置单独的映射模板。