Node.js AWS Lambda和API网关节点的Lambda代理响应格式错误
我正在使用API网关和AWS Lambda与另一个AWS Lambda函数进行交换 我应该在初次请求插入数据后发送响应,无论是成功还是失败。我正在使用API网关的特定路由 结构如下: 现在我不断得到502个格式错误的Lambda代理响应,这在我的API测试日志中:Node.js AWS Lambda和API网关节点的Lambda代理响应格式错误,node.js,amazon-web-services,aws-lambda,aws-api-gateway,Node.js,Amazon Web Services,Aws Lambda,Aws Api Gateway,我正在使用API网关和AWS Lambda与另一个AWS Lambda函数进行交换 我应该在初次请求插入数据后发送响应,无论是成功还是失败。我正在使用API网关的特定路由 结构如下: 现在我不断得到502个格式错误的Lambda代理响应,这在我的API测试日志中: Tue Sep 22 06:56:10 UTC 2020 : Endpoint response headers: {Date=Tue, 22 Sep 2020 06:56:10 GMT, Content-Type=applicat
Tue Sep 22 06:56:10 UTC 2020 : Endpoint response headers: {Date=Tue, 22 Sep 2020 06:56:10 GMT, Content-Type=application/json, Content-Length=4, Connection=keep-alive, x-amzn-RequestId=xxxxxxxx, x-amzn-Remapped-Content-Length=0, X-Amz-Executed-Version=$LATEST, X-Amzn-Trace-Id=xxxxxxx}
Tue Sep 22 06:56:10 UTC 2020 : Endpoint response body before transformations: null
Tue Sep 22 06:56:10 UTC 2020 : Execution failed due to configuration error: Malformed Lambda proxy response
Tue Sep 22 06:56:10 UTC 2020 : Method completed with status: 502
问题是我返回了一个真实的回应。如前所述,我使用API网关和一个处理API网关路由(如Express)的包,这就是我要做的:
api.post('/database-manager/create-request', async (lambdaRequest, lambdaResponse, callback) => {
await provideConnectionInfo()
let connection = mysql.createConnection({
host: mySQLHost,
user: mySQLUser,
password: mySQLPassword,
database: mySQLDatabase
}
)
requestNb = lambdaRequest.headers["request-id"]
pipelineId = lambdaRequest.headers["pipeline-id"]
connection.connect(function (err) {
if (err) throw err
let query = "INSERT INTO ec2_request(request_id, pipeline_id) VALUES (?,?)"
connection.query(query,[requestNb,pipelineId], function (err, result) {
if (err) {
connection.end()
console.log("insertion did not work : " + err)
let response = {
"statusCode": 404,
"headers": {},
"isBase64Encoded": false,
"body": JSON.stringify({message: "Record not inserted"})
}
return response
)
} else {
connection.end()
console.log("1 record inserted")
let response = {
"statusCode": 200,
"headers": {},
"isBase64Encoded": false,
"body": JSON.stringify({message: "tired of this bs"})
}
return response
}
}
)
}
)
})
最糟糕的是我的日志没有显示任何错误:
1600758637213 START RequestId: f804577b-c0a2-4d11-8822-52363fa41c7d Version: $LATEST
1600758639189 2020-09-22T07:10:39.188Z f804577b-c0a2-4d11-8822-52363fa41c7d INFO 1 record inserted
1600758639348 END RequestId: f804577b-c0a2-4d11-8822-52363fa41c7d
1600758639348 REPORT RequestId: f804577b-c0a2-4d11-8822-52363fa41c7d Duration: 2134.45 ms Billed Duration: 2200 ms Memory Size: 128 MB Max Memory Used: 94 MB Init Duration: 555.23 ms
如果有人看到我可能犯了错误,我会给他们买个甜甜圈
想知道是状态不对
提前多谢了
票价您在
async
中使用回调函数,无需等待
这里有几个选择
api.post('/database manager/create request',async(lambdaRequest、lambdaResponse、callback)=>中删除async
查询功能
包装为承诺
并使用等待
api.post('/database-manager/create-request', async (lambdaRequest, lambdaResponse, callback) => {
await provideConnectionInfo()
let connection = mysql.createConnection({
host: mySQLHost,
user: mySQLUser,
password: mySQLPassword,
database: mySQLDatabase
}
)
requestNb = lambdaRequest.headers["request-id"]
pipelineId = lambdaRequest.headers["pipeline-id"]
const res = await new Promise(function(resolve, reject) {
connection.connect();
let query = "INSERT INTO ec2_request(request_id, pipeline_id) VALUES (?,?)"
connection.query(query,[requestNb,pipelineId], function (err, result) {
if (err) {
connection.end()
console.log("insertion did not work : " + err)
let response = {
"statusCode": 404,
"headers": {},
"isBase64Encoded": false,
"body": JSON.stringify({message: "Record not inserted"})
}
reject(response)
} else {
connection.end()
console.log("1 record inserted")
let response = {
"statusCode": 200,
"headers": {},
"isBase64Encoded": false,
"body": JSON.stringify({message: "tired of this bs"})
}
resolve(response)
}
})
});
return res;
})
注意:代码尚未测试。您在
async
中使用回调函数,无需等待
这里有几个选择
api.post('/database manager/create request',async(lambdaRequest、lambdaResponse、callback)=>中删除async
查询功能
包装为承诺
并使用等待
api.post('/database-manager/create-request', async (lambdaRequest, lambdaResponse, callback) => {
await provideConnectionInfo()
let connection = mysql.createConnection({
host: mySQLHost,
user: mySQLUser,
password: mySQLPassword,
database: mySQLDatabase
}
)
requestNb = lambdaRequest.headers["request-id"]
pipelineId = lambdaRequest.headers["pipeline-id"]
const res = await new Promise(function(resolve, reject) {
connection.connect();
let query = "INSERT INTO ec2_request(request_id, pipeline_id) VALUES (?,?)"
connection.query(query,[requestNb,pipelineId], function (err, result) {
if (err) {
connection.end()
console.log("insertion did not work : " + err)
let response = {
"statusCode": 404,
"headers": {},
"isBase64Encoded": false,
"body": JSON.stringify({message: "Record not inserted"})
}
reject(response)
} else {
connection.end()
console.log("1 record inserted")
let response = {
"statusCode": 200,
"headers": {},
"isBase64Encoded": false,
"body": JSON.stringify({message: "tired of this bs"})
}
resolve(response)
}
})
});
return res;
})