Closed
Description
Expected Behaviour
Having swagger UI displayed
Current Behaviour
Uncaught SyntaxError: Unexpected token '<' (at swagger.js:1:1)
swagger:543 Uncaught ReferenceError: SwaggerUIBundle is not defined
at swagger:543:7
Code snippet
import os
from aws_lambda_powertools import Logger, Metrics, Tracer
from aws_lambda_powertools.event_handler import APIGatewayRestResolver
from aws_lambda_powertools.logging import correlation_paths
from aws_lambda_powertools.utilities.typing import LambdaContext
from boto_session_manager import BotoSesManager
from mypy_boto3_cognito_idp.type_defs import (
CreateUserPoolClientRequestRequestTypeDef,
CreateUserPoolClientResponseTypeDef,
)
from .utils import create_type_with_keys_removed
bsm = BotoSesManager()
app = APIGatewayRestResolver(enable_validation=True)
app.enable_swagger(
path="/swagger"
)
tracer = Tracer()
logger = Logger()
metrics = Metrics(namespace="UserPoolsManagement", service="api-cognito-awslz-totalenergies")
cognito_idp_client = bsm.cognitoidentityprovider_client
@app.post("/v2/<user_pool_id>/user_pool_client")
@tracer.capture_method
def create_user_pool_client(
user_pool_id: str, user_pool_client_body: create_type_with_keys_removed(CreateUserPoolClientRequestRequestTypeDef, ["UserPoolId"])
) -> CreateUserPoolClientResponseTypeDef:
user_pool_client_body["UserPoolId"] = user_pool_id
response = cognito_idp_client.create_user_pool_client(**user_pool_client_body)
return response
@logger.inject_lambda_context(correlation_id_path=correlation_paths.API_GATEWAY_REST)
@tracer.capture_lambda_handler
@metrics.log_metrics(capture_cold_start_metric=True)
def lambda_handler(event: dict, context: LambdaContext) -> dict:
return app.resolve(event, context)
Possible Solution
No response
Steps to Reproduce
Having a lambda behind a edge API Gateway with a proxy+ to the lambda
Powertools for AWS Lambda (Python) version
latest
AWS Lambda function runtime
3.11
Packaging format used
Lambda Layers, PyPi
Debugging logs
INIT_START Runtime Version: python:3.11.v24 Runtime Version ARN: arn:aws:lambda:eu-central-1::runtime:a5ffc62d98071fc767e6f8abc670b5036a0f5a683f0bbc6cb1bac14de89647bf
2023-12-22T15:38:56.940+01:00 /var/task/aws_lambda_powertools/event_handler/api_gateway.py:1772: UserWarning: POWERTOOLS_DEV environment variable is enabled. Increasing verbosity across utilities.
2023-12-22T15:38:56.940+01:00 return powertools_dev_is_set()
2023-12-22T15:38:57.222+01:00 /var/task/aws_lambda_powertools/logging/formatter.py:129: UserWarning: POWERTOOLS_DEV environment variable is enabled. Increasing verbosity across utilities.
2023-12-22T15:38:57.222+01:00
Copy
constants.PRETTY_INDENT if powertools_dev_is_set() else constants.COMPACT_INDENT
constants.PRETTY_INDENT if powertools_dev_is_set() else constants.COMPACT_INDENT
2023-12-22T15:38:57.373+01:00 START RequestId: 2ac64ee7-a3cd-4332-a9aa-0100d3e0cdea Version: $LATEST
2023-12-22T15:38:57.374+01:00 {
2023-12-22T15:38:57.374+01:00 "level":"INFO",
2023-12-22T15:38:57.374+01:00 "location":"decorate:451",
2023-12-22T15:38:57.374+01:00 "message":{
2023-12-22T15:38:57.374+01:00 "resource":"/{proxy+}",
2023-12-22T15:38:57.374+01:00 "path":"/swagger",
2023-12-22T15:38:57.374+01:00 "httpMethod":"GET",
2023-12-22T15:38:57.374+01:00
Copy
"headers":{
"headers":{
2023-12-22T15:38:57.374+01:00 "Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
2023-12-22T15:38:57.374+01:00 "Accept-Encoding":"gzip, deflate, br",
2023-12-22T15:38:57.374+01:00 "Accept-Language":"fr-FR,fr;q=0.9,en-US;q=0.8,en;q=0.7",
2023-12-22T15:38:57.374+01:00 "cache-control":"max-age=0",
2023-12-22T15:38:57.374+01:00 "CloudFront-Forwarded-Proto":"https",
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-Desktop-Viewer":"true",
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-Mobile-Viewer":"false",
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-SmartTV-Viewer":"false",
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-Tablet-Viewer":"false",
2023-12-22T15:38:57.374+01:00 "CloudFront-Viewer-ASN":"12322",
2023-12-22T15:38:57.374+01:00 "CloudFront-Viewer-Country":"FR",
2023-12-22T15:38:57.374+01:00 "Host":"exqimk94h0.execute-api.eu-central-1.amazonaws.com",
2023-12-22T15:38:57.374+01:00 "sec-ch-ua":"\"Not_A Brand\";v=\"8\", \"Chromium\";v=\"120\", \"Google Chrome\";v=\"120\"",
2023-12-22T15:38:57.374+01:00 "sec-ch-ua-mobile":"?0",
2023-12-22T15:38:57.374+01:00 "sec-ch-ua-platform":"\"Windows\"",
2023-12-22T15:38:57.374+01:00 "sec-fetch-dest":"document",
2023-12-22T15:38:57.374+01:00 "sec-fetch-mode":"navigate",
2023-12-22T15:38:57.374+01:00 "sec-fetch-site":"none",
2023-12-22T15:38:57.374+01:00 "sec-fetch-user":"?1",
2023-12-22T15:38:57.374+01:00 "upgrade-insecure-requests":"1",
2023-12-22T15:38:57.374+01:00 "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
2023-12-22T15:38:57.374+01:00 "Via":"2.0 4ab6741feebe4ae20194f9a14d724e64.cloudfront.net (CloudFront)",
2023-12-22T15:38:57.374+01:00 "X-Amz-Cf-Id":"2zmOMChfaSCXWS3JiA6LprLK10SDk2CfdvGwf9VbqUVCMaU7c9X4IQ==",
2023-12-22T15:38:57.374+01:00 "X-Amzn-Trace-Id":"Root=1-65859f7f-1f16bda9774b1deb5710ee9a",
2023-12-22T15:38:57.374+01:00 "X-Forwarded-For":"91.167.206.249, 130.176.186.164",
2023-12-22T15:38:57.374+01:00 "X-Forwarded-Port":"443",
2023-12-22T15:38:57.374+01:00 "X-Forwarded-Proto":"https"
2023-12-22T15:38:57.374+01:00 },
2023-12-22T15:38:57.374+01:00 "multiValueHeaders":{
2023-12-22T15:38:57.374+01:00 "Accept":[
2023-12-22T15:38:57.374+01:00 "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "Accept-Encoding":[
2023-12-22T15:38:57.374+01:00 "gzip, deflate, br"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "Accept-Language":[
2023-12-22T15:38:57.374+01:00 "fr-FR,fr;q=0.9,en-US;q=0.8,en;q=0.7"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "cache-control":[
2023-12-22T15:38:57.374+01:00 "max-age=0"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "CloudFront-Forwarded-Proto":[
2023-12-22T15:38:57.374+01:00 "https"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-Desktop-Viewer":[
2023-12-22T15:38:57.374+01:00 "true"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-Mobile-Viewer":[
2023-12-22T15:38:57.374+01:00 "false"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-SmartTV-Viewer":[
2023-12-22T15:38:57.374+01:00 "false"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "CloudFront-Is-Tablet-Viewer":[
2023-12-22T15:38:57.374+01:00 "false"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "CloudFront-Viewer-ASN":[
2023-12-22T15:38:57.374+01:00 "12322"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "CloudFront-Viewer-Country":[
2023-12-22T15:38:57.374+01:00 "FR"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "Host":[
2023-12-22T15:38:57.374+01:00 "exqimk94h0.execute-api.eu-central-1.amazonaws.com"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "sec-ch-ua":[
2023-12-22T15:38:57.374+01:00 "\"Not_A Brand\";v=\"8\", \"Chromium\";v=\"120\", \"Google Chrome\";v=\"120\""
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "sec-ch-ua-mobile":[
2023-12-22T15:38:57.374+01:00 "?0"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "sec-ch-ua-platform":[
2023-12-22T15:38:57.374+01:00 "\"Windows\""
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "sec-fetch-dest":[
2023-12-22T15:38:57.374+01:00 "document"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "sec-fetch-mode":[
2023-12-22T15:38:57.374+01:00 "navigate"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "sec-fetch-site":[
2023-12-22T15:38:57.374+01:00 "none"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "sec-fetch-user":[
2023-12-22T15:38:57.374+01:00 "?1"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "upgrade-insecure-requests":[
2023-12-22T15:38:57.374+01:00 "1"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "User-Agent":[
2023-12-22T15:38:57.374+01:00 "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "Via":[
2023-12-22T15:38:57.374+01:00 "2.0 4ab6741feebe4ae20194f9a14d724e64.cloudfront.net (CloudFront)"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "X-Amz-Cf-Id":[
2023-12-22T15:38:57.374+01:00 "2zmOMChfaSCXWS3JiA6LprLK10SDk2CfdvGwf9VbqUVCMaU7c9X4IQ=="
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "X-Amzn-Trace-Id":[
2023-12-22T15:38:57.374+01:00 "Root=1-65859f7f-1f16bda9774b1deb5710ee9a"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "X-Forwarded-For":[
2023-12-22T15:38:57.374+01:00 "91.167.206.249, 130.176.186.164"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "X-Forwarded-Port":[
2023-12-22T15:38:57.374+01:00 "443"
2023-12-22T15:38:57.374+01:00 ],
2023-12-22T15:38:57.374+01:00 "X-Forwarded-Proto":[
2023-12-22T15:38:57.374+01:00 "https"
2023-12-22T15:38:57.374+01:00 ]
2023-12-22T15:38:57.374+01:00 },
2023-12-22T15:38:57.374+01:00 "queryStringParameters":null,
2023-12-22T15:38:57.374+01:00 "multiValueQueryStringParameters":null,
2023-12-22T15:38:57.374+01:00 "pathParameters":{
2023-12-22T15:38:57.374+01:00 "proxy":"swagger"
2023-12-22T15:38:57.374+01:00 },
2023-12-22T15:38:57.374+01:00 "stageVariables":null,
2023-12-22T15:38:57.374+01:00 "requestContext":{
2023-12-22T15:38:57.374+01:00 "resourceId":"nql3wf",
2023-12-22T15:38:57.374+01:00 "resourcePath":"/{proxy+}",
2023-12-22T15:38:57.374+01:00 "httpMethod":"GET",
2023-12-22T15:38:57.374+01:00 "extendedRequestId":"QWXcAGzeFiAEbRg=",
2023-12-22T15:38:57.374+01:00 "requestTime":"22/Dec/2023:14:38:55 +0000",
2023-12-22T15:38:57.374+01:00 "path":"/sdx/swagger",
2023-12-22T15:38:57.374+01:00 "accountId":"143192094220",
2023-12-22T15:38:57.374+01:00 "protocol":"HTTP/1.1",
2023-12-22T15:38:57.374+01:00 "stage":"sdx",
2023-12-22T15:38:57.374+01:00 "domainPrefix":"exqimk94h0",
2023-12-22T15:38:57.374+01:00 "requestTimeEpoch":1703255935751,
2023-12-22T15:38:57.374+01:00 "requestId":"02c8f7cc-3ac2-4ea9-88da-81d4a8c05fdd",
2023-12-22T15:38:57.374+01:00 "identity":{
2023-12-22T15:38:57.374+01:00 "cognitoIdentityPoolId":null,
2023-12-22T15:38:57.374+01:00 "accountId":null,
2023-12-22T15:38:57.374+01:00 "cognitoIdentityId":null,
2023-12-22T15:38:57.374+01:00 "caller":null,
2023-12-22T15:38:57.374+01:00 "sourceIp":"91.167.206.249",
2023-12-22T15:38:57.374+01:00 "principalOrgId":null,
2023-12-22T15:38:57.374+01:00 "accessKey":null,
2023-12-22T15:38:57.374+01:00 "cognitoAuthenticationType":null,
2023-12-22T15:38:57.374+01:00 "cognitoAuthenticationProvider":null,
2023-12-22T15:38:57.374+01:00 "userArn":null,
2023-12-22T15:38:57.374+01:00 "userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
2023-12-22T15:38:57.374+01:00 "user":null
2023-12-22T15:38:57.374+01:00 },
2023-12-22T15:38:57.374+01:00 "domainName":"exqimk94h0.execute-api.eu-central-1.amazonaws.com",
2023-12-22T15:38:57.374+01:00 "apiId":"exqimk94h0"
2023-12-22T15:38:57.374+01:00 },
2023-12-22T15:38:57.374+01:00 "body":null,
2023-12-22T15:38:57.374+01:00 "isBase64Encoded":false
2023-12-22T15:38:57.374+01:00 },
2023-12-22T15:38:57.374+01:00 "timestamp":"2023-12-22 14:38:57,374+0000",
2023-12-22T15:38:57.374+01:00 "service":"cognito-management-te",
2023-12-22T15:38:57.374+01:00 "cold_start":true,
2023-12-22T15:38:57.374+01:00 "function_name":"cognito-management-te-sdx-api-user-pool-management",
2023-12-22T15:38:57.374+01:00 "function_memory_size":"128",
2023-12-22T15:38:57.374+01:00 "function_arn":"arn:aws:lambda:eu-central-1:143192094220:function:cognito-management-te-sdx-api-user-pool-management",
2023-12-22T15:38:57.374+01:00 "function_request_id":"2ac64ee7-a3cd-4332-a9aa-0100d3e0cdea",
2023-12-22T15:38:57.374+01:00 "correlation_id":"02c8f7cc-3ac2-4ea9-88da-81d4a8c05fdd",
2023-12-22T15:38:57.374+01:00 "xray_trace_id":"1-65859f7f-1f16bda9774b1deb5710ee9a"
2023-12-22T15:38:57.374+01:00 }
2023-12-22T15:38:57.379+01:00 {"resource":"/{proxy+}","path":"/swagger","httpMethod":"GET","headers":{"Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7","Accept-Encoding":"gzip, deflate, br","Accept-Language":"fr-FR,fr;q=0.9,en-US;q=0.8,en;q=0.7","cache-control":"max-age=0","CloudFront-Forwarded-Proto":"https","CloudFront-Is-Desktop-Viewer":"true","CloudFront-Is-Mobile-Viewer":"false","CloudFront-Is-SmartTV-Viewer":"false","CloudFront-Is-Tablet-Viewer":"false","CloudFront-Viewer-ASN":"12322","CloudFront-Viewer-Country":"FR","Host":"exqimk94h0.execute-api.eu-central-1.amazonaws.com","sec-ch-ua":"\"Not_A Brand\";v=\"8\", \"Chromium\";v=\"120\", \"Google Chrome\";v=\"120\"","sec-ch-ua-mobile":"?0","sec-ch-ua-platform":"\"Windows\"","sec-fetch-dest":"document","sec-fetch-mode":"navigate","sec-fetch-site":"none","sec-fetch-user":"?1","upgrade-insecure-requests":"1","User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36","Via":"2.0 4ab6741feebe4ae20194f9a14d724e64.cloudfront.net (CloudFront)","X-Amz-Cf-Id":"2zmOMChfaSCXWS3JiA6LprLK10SDk2CfdvGwf9VbqUVCMaU7c9X4IQ==","X-Amzn-Trace-Id":"Root=1-65859f7f-1f16bda9774b1deb5710ee9a","X-Forwarded-For":"91.167.206.249, 130.176.186.164","X-Forwarded-Port":"443","X-Forwarded-Proto":"https"},"multiValueHeaders":{"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"],"Accept-Encoding":["gzip, deflate, br"],"Accept-Language":["fr-FR,fr;q=0.9,en-US;q=0.8,en;q=0.7"],"cache-control":["max-age=0"],"CloudFront-Forwarded-Proto":["https"],"CloudFront-Is-Desktop-Viewer":["true"],"CloudFront-Is-Mobile-Viewer":["false"],"CloudFront-Is-SmartTV-Viewer":["false"],"CloudFront-Is-Tablet-Viewer":["false"],"CloudFront-Viewer-ASN":["12322"],"CloudFront-Viewer-Country":["FR"],"Host":["exqimk94h0.execute-api.eu-central-1.amazonaws.com"],"sec-ch-ua":["\"Not_A Brand\";v=\"8\", \"Chromium\";v=\"120\", \"Google Chrome\";v=\"120\""],"sec-ch-ua-mobile":["?0"],"sec-ch-ua-platform":["\"Windows\""],"sec-fetch-dest":["document"],"sec-fetch-mode":["navigate"],"sec-fetch-site":["none"],"sec-fetch-user":["?1"],"upgrade-insecure-requests":["1"],"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"],"Via":["2.0 4ab6741feebe4ae20194f9a14d724e64.cloudfront.net (CloudFront)"],"X-Amz-Cf-Id":["2zmOMChfaSCXWS3JiA6LprLK10SDk2CfdvGwf9VbqUVCMaU7c9X4IQ=="],"X-Amzn-Trace-Id":["Root=1-65859f7f-1f16bda9774b1deb5710ee9a"],"X-Forwarded-For":["91.167.206.249, 130.176.186.164"],"X-Forwarded-Port":["443"],"X-Forwarded-Proto":["https"]},"queryStringParameters":null,"multiValueQueryStringParameters":null,"pathParameters":{"proxy":"swagger"},"stageVariables":null,"requestContext":{"resourceId":"nql3wf","resourcePath":"/{proxy+}","httpMethod":"GET","extendedRequestId":"QWXcAGzeFiAEbRg=","requestTime":"22/Dec/2023:14:38:55 +0000","path":"/sdx/swagger","accountId":"143192094220","protocol":"HTTP/1.1","stage":"sdx","domainPrefix":"exqimk94h0","requestTimeEpoch":1703255935751,"requestId":"02c8f7cc-3ac2-4ea9-88da-81d4a8c05fdd","identity":{"cognitoIdentityPoolId":null,"accountId":null,"cognitoIdentityId":null,"caller":null,"sourceIp":"91.167.206.249","principalOrgId":null,"accessKey":null,"cognitoAuthenticationType":null,"cognitoAuthenticationProvider":null,"userArn":null,"userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36","user":null},"domainName":"exqimk94h0.execute-api.eu-central-1.amazonaws.com","apiId":"exqimk94h0"},"body":null,"isBase64Encoded":false}
2023-12-22T15:38:57.379+01:00 Processing Route:::swagger_handler (/swagger)
2023-12-22T15:38:57.379+01:00 Middleware Stack:
2023-12-22T15:38:57.379+01:00 =================
2023-12-22T15:38:57.379+01:00 OpenAPIValidationMiddleware
2023-12-22T15:38:57.379+01:00 _registered_api_adapter
2023-12-22T15:38:57.379+01:00 =================
2023-12-22T15:38:57.648+01:00 Processed Middlewares:
2023-12-22T15:38:57.648+01:00 ======================
2023-12-22T15:38:57.648+01:00 [OpenAPIValidationMiddleware] next call chain is OpenAPIValidationMiddleware -> _registered_api_adapter
2023-12-22T15:38:57.648+01:00 [_registered_api_adapter] next call chain is _registered_api_adapter -> swagger_handler
2023-12-22T15:38:57.648+01:00 ======================
2023-12-22T15:38:57.779+01:00 {"_aws":{"Timestamp":1703255937778,"CloudWatchMetrics":[{"Namespace":"UserPoolsManagement","Dimensions":[["function_name","service"]],"Metrics":[{"Name":"ColdStart","Unit":"Count"}]}]},"function_name":"cognito-management-te-sdx-api-user-pool-management","service":"api-cognito-awslz-totalenergies","ColdStart":[1.0]}
2023-12-22T15:38:57.779+01:00 /var/task/aws_lambda_powertools/metrics/provider/base.py:209: UserWarning: No application metrics to publish. The cold-start metric may be published if enabled. If application metrics should never be empty, consider using 'raise_on_empty_metrics'
2023-12-22T15:38:57.779+01:00 self.flush_metrics(raise_on_empty_metrics=raise_on_empty_metrics)
2023-12-22T15:38:57.802+01:00 END RequestId: 2ac64ee7-a3cd-4332-a9aa-0100d3e0cdea
2023-12-22T15:38:57.802+01:00 REPORT RequestId: 2ac64ee7-a3cd-4332-a9aa-0100d3e0cdea Duration: 429.04 ms Billed Duration: 430 ms Memory Size: 128 MB Max Memory Used: 86 MB Init Duration: 1315.91 ms XRAY TraceId: 1-65859f7f-1f16bda9774b1deb5710ee9a SegmentId: 21fee44477b3084d Sampled: true
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rubenfonseca commentedon Dec 22, 2023
Hi @filol can you show me the Network tab of the browser to see which URL is giving out that "Syntax error" error?
filol commentedon Dec 22, 2023
Hi @rubenfonseca
There is :

But I found the problem ! I have inspected the files receives and each time it was the HTML content even for the js & css file. It was related to the API cache that was enable. Not sure you can do something about it. Just maybe display this info on the documentation
rubenfonseca commentedon Dec 22, 2023
Awesome! So in this case,
/swagger.js
and/swagger.css
were serving cached versions of/swagger
is that correct?filol commentedon Dec 22, 2023
@rubenfonseca Yes ! See the file selected in my 2nd screenshot. It's
/swagger.js
but the content is real content is HTML. That's why we get a syntax error, html code in javascript is not correctrubenfonseca commentedon Dec 22, 2023
Interesting! Let's keep the issue open so we can add a note in the documentation. Thank you for this!
leandrodamascena commentedon Dec 26, 2023
Hey everyone! I was reading this issue to see if we can help on the Powertools side, but I don't think we can do anything. Just to clarify the issue and help us decide the next steps:
1 - Amazon API Gateway caches values based on the resource name and/or query string parameters. In this case, the cache will store the
{/proxy+}
resource. Just to simplify my explanation, I will assume that you are using Amazon API Gateway just to serve the Swagger file. In this case, Amazon API Gateway will cache the first request for{proxy+}
which is/swagger
(HTML). Subsequent requests for{/proxy+}
will be/swagger.js
and/swagger.json
, and Amazon API Gateway will serve the HTML because the cache for the resource{/proxy+}
is the HTML created by the first request/swagger
.2 - Amazon API Gateway does not depend on/use any header sent by downstream integration, in this case Lambda. The cache must be invalidated by the client, so we have nothing to do on the server side.
Reference: https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-caching.html
3 - You can solve this by creating specific resources for each path, like this:

4 - I found another small problem when we served the CSS/JS from Powertools. In the files

swagger-ui-bundle.min.js
andswagger-ui.min.css
we have thesourceMappingURL
configuration at the end of them, which causes the browser to try to find the map debug files when someone opens the developer tools. This raises a 404 because we don't have this map file (we don't need it - we are not debugging the files) and 2 more executions in Lambda, which is not necessary.So, as the next steps we have:
1 - Update our documentation to clarify the issue when using
{proxy+}
and cache in Amazon API Gateway.2 - Remove the
sourceMappingURL
configuration.I will work on both items and submit a PR.
Thanks again for opening this issue @filol and helping us make Powertools for AWS Lambda even better for our customers. Please let me know if you have any questions.
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