使用无服务器创建dialogflow v2项目 [英] creating dialogflow v2 project with serverless

问题描述

尝试运行新的AWS/Serverless/Dialogflow项目时出现问题.我确信这只是我看不到的简单事情.

Having issues trying to run a new AWS/Serverless/Dialogflow project. I am sure it is something simple that I am just not seeing.

• 使用以下内容创建初始项目:serverless create --template aws-nodejs-typescript

将 handler.js 移至 src/&更新了 serverless.yml

moved handler.js to src/ & updated serverless.yml

按照 google-actions 的示例进行更新 src/handler.js

import { dialogflow, Image } from 'actions-on-google';

const app = dialogflow({debug: true});

app.intent("test.intent", (conv) => {
  conv.ask("Hi, how is it going?");
  conv.ask("Here is a picture of a cat!");
  conv.ask(new Image({
    url: "https://developers.google.com/web/fundamentals/accessibility/semantics-builtin/imgs/160204193356-01-cat-500.jpg",
    alt: "A fluffy cat!"
  }));
});

exports.fulfillment = app;

还更新了 tsconfig.json 以匹配另一个Typescript项目

also updated tsconfig.json to match another Typescript project

{
  "compilerOptions": {
    "sourceMap": true,
    "target": "es6",
    "allowJs": true,
    "module": "commonjs"
  },
  "exclude": [
    "node_modules"
  ],
  "include": [
    "./src/**/*"
  ]
}

为了完整起见，这是我的 serverless.yml . (我手动创建了API网关，因为无服务器创建了lambda-proxy，并且我没有研究其他配置.)

For thoroughness here is my serverless.yml. (I manually created the API Gateway because serverless creates the lambda-proxy and I haven't looked into the other config.)

service:
  name: test-lambda

# Add the serverless-webpack plugin
plugins:
  - serverless-webpack

provider:
  name: aws
  runtime: nodejs6.10

functions:
  fulfillment:
    handler: src/handler.fulfillment
    # events:
    #   - http:
    #       method: get
    #       path: hello

错误

项目成功编译并部署，但是当调用lambda时，我一直在获取

Error

The project compiles and deploys successfully but when the lambda is called I keep getting

(node:1) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): TypeError: Cannot convert undefined or null to object

P.S.示例源选择了使用猫！

P.S. the example source chose to use a cat!

推荐答案

最后有一段时间来解决这个问题，并遇到了

Finally had some time to circle back to this problem and came across this git issue.

基本上，dialogflow实例需要由lambda封装.

Essentially the dialogflow instance needed to be encapsulated by the lambda.

exports.fulfillment = function(event, context, callback) {
  app.handler(event, {})
    .then((res) => {
      if (res.status != 200) {
        callback(null, {
          "fulfillmentText": `I got status code: ${res.status}`
        });
      } else {
        callback(null, res.body);
      }
    }).catch((e) => {
      callback(null, {
        "fulfillmentText": `There was an error\n${e}`
      });
    });
};

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