与此不同的是 - 如何从 Amazon API Gateway 将参数传递给 AWS Lambda。因为我能够在 API Gateway 中转换参数,但无法在 Golang 中传递或打印它。然而,对于 Python 来说,相同的 API Gateway 可以正常工作。
我已经尝试了许多方法,但是在Golang代码中无法获取所需的参数。如果我做错了什么,请纠正我。任何帮助将不胜感激。
PS:我使用了这份文档作为设置API Gateway的参考 - https://www.twilio.com/docs/sms/tutorials/how-to-receive-and-reply-python-amazon-lambda。该设置对于Python Lambda函数运行良好。
以下是我的 API Gateway 和 AWS Lambda(Golang)的日志。我可以看到 POST 参数已成功转换为 JSON。尽管如此,在 Lambda 函数日志中仍然无法看到它。
API Gateway 日志
(442f74ed-39e5-4372-bf85-42bf814f802f) Extended Request Id: EIaYxxMF3lQ=
(442f74ed-39e5-4372-bf85-42bf814f802f) Method request path: {}
(442f74ed-39e5-4372-bf85-42bf814f802f) Method request query string: {}
(442f74ed-39e5-4372-bf85-42bf814f802f) Method request headers: {Accept=*/*, Cache-Control=max-age=259200, X-Twilio-Signature=ZWg2v7xxxfnBlPyxE=, User-Agent=TwilioProxy/1.1, X-Forwarded-Proto=https, I-Twilio-Idempotency-Token=e5d1xxx221bc4, X-Forwarded-For=54.xxxx.227, Host=xxxxxxx.execute-api.us-east-1.amazonaws.com, X-Forwarded-Port=443, X-Amzn-Trace-Id=Root=1-5de67103-7994dbxxx0dbd872, Content-Type=application/x-www-form-urlencoded}}
(442f74ed-39e5-4372-bf85-42bf814f802f) Method request body before transformations: ToCountry=US&ToState=UT&SmsMessageSid=SMed65axxx595c7938df&NumMedia=0&ToCity=&FromZip=&SmsSid=SMed65aa5xxccdd595c7938df&FromState=&SmsStatus=received&FromCity=&Body=Testing+again&FromCountry=IN&To=%2Bxxxx848&ToZip=&NumSegments=1&MessageSid=SMed65axxxd595c7938df&AccountSid=AC23a2cbxxx65a66d98&From=%2B9xxxx5590&ApiVersion=2010-04-01
(442f74ed-39e5-4372-bf85-42bf814f802f) Endpoint request URI: https://lambda.us-east-1.amazonaws.com/2015-03-31/functions/arn:aws:lambda:us-east-1:6xxxxxxxx6:function:Twillio_connector_test/invocations
(442f74ed-39e5-4372-bf85-42bf814f802f) Endpoint request headers: {x-amzn-lambda-integration-tag=442f74ed-39e5-4372-bf85-42bf814f802f, Authorization=*****27aa7a, X-Amz-Date=20191203T142819Z, x-amzn-apigateway-api-id=xxxxx, X-Amz-Source-Arn=arn:aws:execute-api:us-east-1:69xxxx886:xxxxxxx/v1/POST/message, Accept=application/x-www-form-urlencoded, User-Agent=AmazonAPIGateway_f7504e7yc6, X-Amz-Security-Token=IQoJbxxxhQH [TRUNCATED]
(442f74ed-39e5-4372-bf85-42bf814f802f) Endpoint request body after transformations:
{
"ToCountry": "US",
"ToState": "UT",
"SmsMessageSid": "SMed65aaxxxxxx5c7938df",
"NumMedia": "0",
"ToCity": "",
"FromZip": "",
"SmsSid": "SMed65aaxxxxxx938df",
"FromState": "",
"SmsStatus": "received",
"FromCity": "",
"Body": "Testing+again",
"FromCountry": "IN",
"To": "%2B1xxxxxx848",
"ToZip": "",
"NumSegments": "1",
"MessageSid": "SMed65aa5dxxxx7938df",
"AccountSid": "AC23xxxd98",
"From": "%2B9xxxxxx90",
"ApiVersion": "2010-04-01"
}
(442f74ed-39e5-4372-bf85-42bf814f802f) Endpoint response headers: {Date=Tue, 03 Dec 2019 14:28:20 GMT, Content-Type=application/json, Content-Length=43, Connection=keep-alive, x-amzn-RequestId=168394b7-c152-4434-af02-03a03b6f3090, x-amzn-Remapped-Content-Length=0, X-Amz-Executed-Version=$LATEST, X-Amzn-Trace-Id=root=1-5de67103-7994dbxxxxbe30dbd872;sampled=0}
(442f74ed-39e5-4372-bf85-42bf814f802f) Endpoint response body before transformations: "Lambda function is completed successfully"
(442f74ed-39e5-4372-bf85-42bf814f802f) Method response body after transformations: Lambda function is completed successfully
(442f74ed-39e5-4372-bf85-42bf814f802f) Method response headers: {X-Amzn-Trace-Id=Root=1-5de67103-7994dbxxxxxxd872;Sampled=0, Content-Type=application/xml}
Lambda函数代码
func Handler(request events.APIGatewayProxyRequest) (string, error) {
fmt.Println("request:", events.APIGatewayProxyRequestContext)
fmt.Println("request:", events.APIGatewayProxyResponse)
fmt.Println("request:", events.APIGatewayRequestIdentity)
fmt.Printf("%+v\n", request)
fmt.Println("request Body:", request.Body)
fmt.Println("request HTTPMethod:", request.HTTPMethod)
fmt.Println("request Headers:", request.Headers)
fmt.Println("request:", request.RequestContext.RequestID)
fmt.Println("PrettyPrint")
prettyPrint(request)
Lambda函数日志
request: { map[] map[] map[] map[] map[] map[] { { } map[] } Good Day false}
{Resource: Path: HTTPMethod: Headers:map[] MultiValueHeaders:map[] QueryStringParameters:map[] MultiValueQueryStringParameters:map[] PathParameters:map[] StageVariables:map[] RequestContext:{AccountID: ResourceID: Stage: RequestID: Identity:{CognitoIdentityPoolID: AccountID: CognitoIdentityID: Caller: APIKey: AccessKey: SourceIP: CognitoAuthenticationType: CognitoAuthenticationProvider: UserArn: UserAgent: User:} ResourcePath: Authorizer:map[] HTTPMethod: APIID:} Body:Good Day IsBase64Encoded:false}
request Body: Good Day
request HTTPMethod:
request Headers: map[]
request:
我已经尝试了许多方法,但是在Golang代码中无法获取所需的参数。如果我做错了什么,请纠正我。任何帮助将不胜感激。
PS:我使用了这份文档作为设置API Gateway的参考 - https://www.twilio.com/docs/sms/tutorials/how-to-receive-and-reply-python-amazon-lambda。该设置对于Python Lambda函数运行良好。
Handler
函数签名是错误的,它应该有两个参数,即Context
和APIGatewayProxyRequest
。尝试更改一下,这样应该会有所帮助。此外,你的返回值应该是(APIGatewayProxyResponse, error)
。 - Arun Poudel