我正在学习一个教程 (https://github.com/just4give/raspi-dexter-lambda)，该教程在树莓派上利用 AWS rekognition 来制作机器人。我无法弄清楚如何创建日志来查看代码挂起的位置。
这是我需要调试的 lambda 函数：
'use strict';
const request = require('request');
const AWS = require('aws-sdk');
AWS.config.update({region:'us-east-1'});
const rekognition = new AWS.Rekognition();
const moment = require('moment-timezone');
const sns = new AWS.SNS();
const s3 = new AWS.S3();
var config = {
"awsRegion":"us-east-1",
"s3Bucket":"raspi118528",
"awsFaceCollection":"raspifacecollection"
}
module.exports.bot = (event, context, callback) => {
try {
// By default, treat the user request as coming from the America/New_York time zone.
var intentName= event.currentIntent.name;
console.log('intentName',intentName);
switch (intentName) {
case 'HelloIntent':
request(
{
url : process.env.URL_CAPTURE,
method:'POST',
headers : {
"Authorization" : "Basic " + new Buffer( "raspi:secret").toString("base64")
}
},
function (error, response, body) {
if(error){
callback(error);
}else{
body = JSON.parse(body);
console.log('body',body);
console.log('now',new Date());
if(body.status ==='matched'){
var hour = parseInt(moment().tz('America/New_York').format('h'));
console.log('hour',hour);
var content="";
if(hour >= 5 && hour<12){
content ="Good morning, "+ body.message+" ! Have a nice day!";
}else if(hour >=12 && hour <18){
content ="Good afternoon, "+ body.message+" ! Have a nice rest of the day!";
}else if(hour >=18 && hour < 21){
content ="Good evening, "+ body.message+" ! Talk to you soon!";
}else{
content ="Hi, "+ body.message+" ! It's been a long day! Good Night!";
}
const url = s3.getSignedUrl('getObject', {
Bucket: config.s3Bucket,
Key: body.key,
Expires: 300
})
//console.log(url)
sns.publish({
Message: 'I just saw '+ body.message+' . See the image I captured. Link will expire in 5 minutes. ' + url,
TopicArn: 'arn:aws:sns:us-east-1:027378352884:raspiFaceTextMessage'
}, function (err, data) {
if(err){
console.log("error", err);
}else{
console.log('success',data);
}
});
callback(null,{
sessionAttributes: {key: body.key},
dialogAction: {
type: 'Close',
fulfillmentState:'Fulfilled',
message:{
contentType: 'PlainText',
content: content
}
},
})
}else if(body.status ==='error'){
callback(null,{
sessionAttributes: {key: body.key},
dialogAction: {
type: 'Close',
fulfillmentState:'Fulfilled',
message:{
contentType: 'PlainText',
content: body.message
}
},
})
}else if(body.status==='unmatched'){
callback(null,{
sessionAttributes: {key: body.key},
dialogAction: {
type: 'ElicitIntent',
//fulfillmentState:'Fulfilled',
message:{
contentType: 'PlainText',
content: body.message
}
},
})
}
}
}
);
break;
case 'NameIntent':
var name = event.currentIntent.slots.name;
var key = event.sessionAttributes.key;
var params = {
"CollectionId": config.awsFaceCollection,
"DetectionAttributes": [ "ALL" ],
"ExternalImageId": name,
"Image": {
"S3Object": {
"Bucket": config.s3Bucket,
"Name": key
}
}
}
rekognition.indexFaces(params, function(err, data) {
if (err) {
console.log(err, err.stack);
}else{
//console.log(data);
const url = s3.getSignedUrl('getObject', {
Bucket: config.s3Bucket,
Key: key,
Expires: 300
})
//console.log(url)
sns.publish({
Message: 'I stored face of '+ name+' . See the image I loaded in my brain. Link will expire in 5 minutes. ' + url,
TopicArn: 'arn:aws:sns:us-east-1:027378352884:raspiFaceTextMessage'
}, function (err, data) {
if(err){
console.log("error", err);
}else{
console.log('success',data);
}
});
callback(null,{
sessionAttributes: {key: key},
dialogAction: {
type: 'Close',
fulfillmentState:'Fulfilled',
message:{
contentType: 'PlainText',
content: "I stored your picture "+name+" . Have a nice day!"
}
},
})
}
});
break;
case 'ClearAllFacesIntent':
var params = {
"CollectionId": config.awsFaceCollection,
"MaxResults": 20
}
rekognition.listFaces(params, function(err, data) {
if (err) console.log(err, err.stack); // an error occurred
else {
console.log(data);
var faceIds=[];
data.Faces.forEach(function(face){
faceIds.push(face.FaceId);
})
if(faceIds.length>0){
var params = {
CollectionId: config.awsFaceCollection,
FaceIds: faceIds
};
rekognition.deleteFaces(params, function(err, data) {
if (err) {
callback(null,{
sessionAttributes: {key: key},
dialogAction: {
type: 'Close',
fulfillmentState:'Fulfilled',
message:{
contentType: 'PlainText',
content: "Something went wrong! I could not delete faces!"
}
},
})
}
else {
callback(null,{
sessionAttributes: {key: key},
dialogAction: {
type: 'Close',
fulfillmentState:'Fulfilled',
message:{
contentType: 'PlainText',
content: "I have deleted all the faces from memory!"
}
},
})
}
});
}
}
});
break;
case 'CloseIntent':
callback(null,{
sessionAttributes: {},
dialogAction: {
type: 'Close',
fulfillmentState:'Fulfilled',
message:{
contentType: 'PlainText',
content: "Good bye!"
}
},
})
break;
default:
}
} catch (err) {
callback(err);
}
};
此 lambda 由 AWS 中的机器人调用。每当我使用 NameIntent 说“我的名字是 David”时，服务器只会要求我重复该语句。
以下是AWS控制台中的日志： https://gyazo.com/ce778072ff659f727d0ccf227b466a3b
您可以使用常规方式登录cloudwatch
console.log()