[英]AWS CDK API Gateway Construct Library
我正在嘗試使用 python 的 AWS_CDK 來配置 apigateway 集成。 https://pypi.org/project/aws-cdk.aws-apigateway/1.4.0/上的 typescript 很有幫助,https 上未經檢查的 python 翻譯也是如此://docs.aws.amazon.com/cdk/api /latest/python/aws_cdk.aws_apigateway.README.html但不太正確。
我試圖讓 python 版本正確,但在從 TS 到 python 的翻譯中我仍然遺漏了一些東西。目前我的代碼片段是;
getRisksIntegration = apigw.LambdaIntegration(self.getRisksFunction, proxy = False,
integration_responses=[{
# Successful response from the Lambda function, no filter defined
# - the selectionPattern filter only tests the error message
# We will set the response status code to 200
"statusCode": "200",
"response_templates": {
# This template takes the "message" result from the Lambda function, adn embeds it in a JSON response
# Check https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html
"application/json": "JSON.stringify(state='ok', greeting='$util.escapeJavaScript($input.body)')"
},
"response_parameters": {
# We can map response parameters
# - Destination parameters (the key) are the response parameters (used in mappings)
# - Source parameters (the value) are the integration response parameters or expressions
"method.response.header._content-_type": "'application/json'",
"method.response.header._access-_control-_allow-_origin": "'*'",
"method.response.header._access-_control-_allow-_credentials": "'true'"
}
}, {
# For errors, we check if the error message is not empty, get the error data
"selection_pattern": "(|.)+",
# We will set the response status code to 200
"status_code": "400",
"response_templates": {
"application/json": "JSON.stringify(state='error', message='$util.escapeJavaScript($input.path('$.errorMessage'))')"
},
"response_parameters": {
"method.response.header._content-_type": "'application/json'",
"method.response.header._access-_control-_allow-_origin": "'*'",
"method.response.header._access-_control-_allow-_credentials": "'true'"
}
}
]);
返回
jsii.errors.JavaScriptError:
Error: Missing required properties for @aws-cdk/aws-apigateway.IntegrationResponse: statusCode
at validateRequiredProps (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7228:15)
at Object.deserialize (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:6900:21)
at Kernel._toSandbox (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:8222:61)
at value.map.x (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:6796:40)
at Array.map (<anonymous>)
at Object.deserialize (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:6796:26)
at Kernel._toSandbox (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:8222:61)
at mapValues (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:6906:29)
at mapValues (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7167:27)
at Kernel._wrapSandboxCode (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:8316:19)
at Kernel._create (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7853:26)
at Kernel.create (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7600:21)
at KernelHost.processRequest (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7388:28)
at KernelHost.run (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7328:14)
at Immediate.setImmediate [as _onImmediate] (/home/ec2-user/environment/thoth/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7331:37)
at runCallback (timers.js:705:18)
at tryOnImmediate (timers.js:676:5)
at processImmediate (timers.js:658:5)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "app.py", line 41, in <module>
gremlin_layer = layer_stack.gremlin_python_layer,
File "/home/ec2-user/environment/thoth/.env/lib64/python3.6/dist-packages/jsii/_runtime.py", line 66, in __call__
inst = super().__call__(*args, **kwargs)
File "/home/ec2-user/environment/thoth/stacks/api_stack.py", line 110, in __init__
"method.response.header._access-_control-_allow-_credentials": "'true'"
File "/home/ec2-user/environment/thoth/.env/lib64/python3.6/dist-packages/jsii/_runtime.py", line 66, in __call__
inst = super().__call__(*args, **kwargs)
File "/home/ec2-user/environment/thoth/.env/lib64/python3.6/dist-packages/aws_cdk/aws_apigateway/__init__.py", line 17765, in __init__
jsii.create(LambdaIntegration, self, [handler, options])
File "/home/ec2-user/environment/thoth/.env/lib64/python3.6/dist-packages/jsii/_kernel/__init__.py", line 229, in create
interfaces=[iface.__jsii_type__ for iface in getattr(klass, "__jsii_ifaces__", [])],
File "/home/ec2-user/environment/thoth/.env/lib64/python3.6/dist-packages/jsii/_kernel/providers/process.py", line 333, in create
return self._process.send(request, CreateResponse)
File "/home/ec2-user/environment/thoth/.env/lib64/python3.6/dist-packages/jsii/_kernel/providers/process.py", line 318, in send
raise JSIIError(resp.error) from JavaScriptError(resp.stack)
jsii.errors.JSIIError: Missing required properties for @aws-cdk/aws-apigateway.IntegrationResponse: statusCode
Subprocess exited with error 1
非常感謝任何幫助。
因此,經過大量研究,問題在於從 TS 到 Python 的翻譯。 重要的是要記住參數,例如 integration_response 的值,它仍然是 TS。 我發現
我還發現添加 api_gateway 方法響應也有點不直觀,所以在下面的工作示例中我已經包含了它。
getRisksIntegration = apigw.LambdaIntegration(self.getRisksFunction,
proxy = False,
# request_parameters = {},
# allow_test_invoke = True,
# request_templates = {},
integration_responses=[{
# Successful response from the Lambda function, no filter defined
# - the selectionPattern filter only tests the error message
# We will set the response status code to 200
"statusCode": "200",
"contentHandling": "Passthrough",
"responseTemplates": {
# This template takes the "message" result from the Lambda function, and embeds it in a JSON response
# Check https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html
# "application/json": "JSON.stringify(state='ok', greeting='$util.escapeJavaScript($input.body)')"
},
"responseParameters": {
# We can map response parameters
# - Destination parameters (the key) are the response parameters (used in mappings)
# - Source parameters (the value) are the integration response parameters or expressions
"method.response.header.Access-Control-Allow-Headers": "'Content-Type,X-Amz-Date,Authorization,X-Api-Key'",
"method.response.header.Access-Control-Allow-Methods": "'*'",
"method.response.header.Access-Control-Allow-Origin": "'*'"
}
},{
# For errors, we check if the error message is not empty, get the error data
# "selection_pattern": "(|.)+",
# We will set the response status code to 200
"statusCode": "400",
"responseTemplates": {
# "application/json": "JSON.stringify(state='error', message='$util.escapeJavaScript($input.path('$.errorMessage'))')"
},
"responseParameters": {
"method.response.header._content-_type": "'application/json'",
"method.response.header._access-_control-_allow-_origin": "'*'",
"method.response.header._access-_control-_allow-_credentials": "'true'"
}
}],
);
getRisks.add_method('GET', getRisksIntegration,
method_responses = [{
"statusCode": "200",
"responseParameters": {
"method.response.header.Access-Control-Allow-Headers": True,
"method.response.header.Access-Control-Allow-Methods": True,
"method.response.header.Access-Control-Allow-Origin": True
},
}]
);
您是否嘗試過傳入IntegrationResponse object? 即喜歡:
...
integration_responses = [
apigw.IntegrationResponse(
status_code = "200",
response_templates = {}
response_parameters = {
"method.response.header.Access-Control-Allow-Headers": "'Content-Type,X-Amz-Date,Authorization,X-Api-Key'",
"method.response.header.Access-Control-Allow-Methods": "'*'",
"method.response.header.Access-Control-Allow-Origin": "'*'"
}
...
]
...
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