我正在尝试Lambda
通过 cloudfront viewer request 调用。这是我的 Lambda 代码
'use strict';
const AWS = require("aws-sdk");
const docClient = new AWS.DynamoDB.DocumentClient();
exports.handler = (event, context, callback) => {
/* Get request */
const request = event.Records[0].cf.request;
const requestbody = Buffer.from(request.body.data, 'base64').toString();
const data = JSON.parse(requestbody);
const Id = data.Name;
console.log(Id);
/* Generate body for response */
const body =
'<html>\n'
+ '<head><title>Hello From Lambda@Edge</title></head>\n'
+ '<body>\n'
+ '<h1>You clicked more than 10 Times </h1>\n'
+ '</body>\n'
+ '</html>';
var params = {
TableName: "Test",
ProjectionExpression: "#V,#N",
KeyConditionExpression: "#N = :v1",
ExpressionAttributeNames: {
"#N" : "Name",
"#V" : "Value"
},
ExpressionAttributeValues: {
":v1": Id
}
};
var querydb = docClient.query(params).promise();
querydb.then(function(data) {
console.log(data.Items[0].Value);
if(data.Items[0].Value >= 11){
const response = {
status: '200',
body: body,
};
callback(null, response);
}else {
callback(null,request);
}
}).catch(function(err) {
console.log(err);
});
};
当我通过控制台触发相同的 lambda 时,它给出了正确的响应。但是当我通过 Cloudfront 进行部署时,它会提供503 Error
. 但是我尝试了相同的代码 withcodeDynamodb Client
它工作得非常好。这是工作的
'use strict';
const AWS = require("aws-sdk");
const docClient = new AWS.DynamoDB.DocumentClient();
exports.handler = (event, context, callback) => {
/* Get request */
const request = event.Records[0].cf.request;
const requestbody = Buffer.from(request.body.data, 'base64').toString();
const data = JSON.parse(requestbody);
/* Generate body for response */
const body =
'<html>\n'
+ '<head><title>Hello From Lambda@Edge</title></head>\n'
+ '<body>\n'
+ '<h1>You clicked more than 10 Times </h1>\n'
+ '</body>\n'
+ '</html>';
if(data.Value >= 10){
const response = {
status: '200',
body: body,
};
callback(null, response);
}
else {
callback(null, request);
}
};
我已经为 lambda@edge 提供了完整的 dynamodb 权限。
感谢任何帮助谢谢