我正在尝试使用CloudFormation模板来提供Lambda和API网关，并尝试在其中一个方法中调用Lambda，但得到类似函数arn的问题是无效的。请提供此的一些分辨率
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"AWSTemplateFormatVersion":"2010-09-09",
"Transform":"AWS::Serverless-2016-10-31",
"Description":"Testing.",
"Parameters":{
},
"Conditions":{
},
"Resources":{
"AspNetCoreFunction":{
"Type":"AWS::Serverless::Function",
"Properties":{
"Handler":"<Handler_details>",
"Runtime":"dotnetcore3.1",
"CodeUri":"",
"MemorySize":256,
"Timeout":30,
"Role":"$Function_Role",
"Policies":null,
}
},
"gateway":{
"Type":"AWS::ApiGateway::RestApi",
"Properties":{
"Name":"Test",
"Description":"Testing",
"ApiKeySourceType":"HEADER",
"EndpointConfiguration":{
"Types":[
"REGIONAL"
]
}
}
},
"ApiMethod":{
"Type":"AWS::ApiGateway::Method",
"Properties":{
"RestApiId":{
"Ref":"gateway"
},
"HttpMethod":"ANY",
"AuthorizationType":"NONE",
"Integration":{
"IntegrationHttpMethod":"POST",
"TimeoutInMillis":29000,
"Type":"AWS_PROXY",
"Uri":{
"Fn::Sub":[
"arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${lambdaArn}/invocations",
{
"lambdaArn":{
"Fn::GetAtt":[
"AspNetCoreFunction",
"Arn"
]
}
}
]
}
}
}
}
}
我试着使用下面的uri，代表上面代码中提到的uri，但仍然有同样的问题。
"uri"："Fn:：Sub"：["arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/${AspNetCoreFunction.arn}/调用"]
我认为错误不是关于ARN，而是关于API网关没有权限调用您的函数。您需要添加以下内容：
{
"AllowApiInvokations": {
"Type": "AWS::Lambda::Permission",
"Properties": {
"Action": "lambda:InvokeFunction",
"FunctionName": "<function-name>" ,
"Principal": "apigateway.amazonaws.com"
}
}
}