I am serving local NestJS backend using serverless-offline plugin. Sometimes it serves and runs without any issues but sometimes I receive "× [504] - Lambda timeout" error in terminal after any request I make. Doesn't matter if it's GET or POST etc. The whole error is like this:
{"errorMessage":"[504] - Lambda timeout.","errorType":"LambdaTimeoutError","stackTrace":["Error: [504] - Lambda timeout.","at #timeoutAndTerminate (file:///C:/Users/z0044vnt/Desktop/diplomka/application-compliance-suite-monorepo/node_modules/serverless-offline/src/lambda/LambdaFunction.js:283:11)","at async LambdaFunction.runHandler (file:///C:/Users/z0044vnt/Desktop/diplomka/application-compliance-suite-monorepo/node_modules/serverless-offline/src/lambda/LambdaFunction.js:305:16)","at async file:///C:/Users/z0044vnt/Desktop/diplomka/application-compliance-suite-monorepo/node_modules/serverless-offline/src/events/http/HttpServer.js:602:18","at async exports.Manager.execute (C:\\Users\\z0044vnt\\Desktop\\diplomka\\application-compliance-suite-monorepo\\node_modules\\@hapi\\hapi\\lib\\toolkit.js:60:28)","at async internals.handler (C:\\Users\\z0044vnt\\Desktop\\diplomka\\application-compliance-suite-monorepo\\node_modules\\@hapi\\hapi\\lib\\handler.js:46:20)","at async exports.execute (C:\\Users\\z0044vnt\\Desktop\\diplomka\\application-compliance-suite-monorepo\\node_modules\\@hapi\\hapi\\lib\\handler.js:31:20)","at async Request._lifecycle (C:\\Users\\z0044vnt\\Desktop\\diplomka\\application-compliance-suite-monorepo\\node_modules\\@hapi\\hapi\\lib\\request.js:370:32)"]}
The NestJS app won't even start so I suspect this may be a problem with my local windows machine or the lambda configuration, but timeout for the lambda is set for 29sec and it time outs way earlier. The local server starts but time outs all of the requests. This is how it looks like in the terminal after I serve it with sls offline --stage local --ignoreJWTSignature --noAuth:
npm run be:local
> [email protected] be:local
> nx run backend:serve:local
> nx run backend:serve:local
Starting Offline at stage local (eu-central-1)
No errors found.
Offline [http for lambda] listening on http://localhost:3002
Function names exposed for local invocation by aws-sdk:
* main: application-compliance-suite-backend-local-main
│ │
│ ANY | http://localhost:3000/{proxy*} │
│ POST | http://localhost:3000/2015-03-31/functions/main/invocations │
│ GET | http://localhost:3000/swagger │
│ POST | http://localhost:3000/2015-03-31/functions/main/invocations │
│ GET | http://localhost:3000/swagger/{proxy*} │
│ POST | http://localhost:3000/2015-03-31/functions/main/invocations │
│ OPTIONS | http://localhost:3000/{proxy*} │
│ POST | http://localhost:3000/2015-03-31/functions/main/invocations │
│ GET | http://localhost:3000/local/swagger │
│ POST | http://localhost:3000/2015-03-31/functions/main/invocations │
│ GET | http://localhost:3000/local/swagger/{proxy*} │
│ POST | http://localhost:3000/2015-03-31/functions/main/invocations │
│ │
└───────────────────────────────────────────────────────────────────────────┘
Server ready: http://localhost:3000 🚀
GET /local/swagger (λ: main)
× [504] - Lambda timeout.
ANY /favicon.ico (λ: main)
× [504] - Lambda timeout.
The lambda config in serverless.yml:
functions:
main:
handler: src/main.handler
memorySize: 256
timeout: 29
role: !GetAtt MainLambdaFunctionIAMRole.Arn
vpc: ${file(serverless/sls-mappings.yml):stageMap.${self:provider.stage}.vpc}
layers:
- !Ref DependenciesLambdaLayer
environment:
STAGE: ${self:provider.stage}
NO_COLOR: true
REGION: ${self:custom.environmentVariables.${self:provider.stage}.region}
DB_SECRET: ${self:custom.environmentVariables.${self:provider.stage}.dbSecret}
events:
- httpApi: # ApiGatewayV2
method: any
path: /{proxy+}
authorizer:
name: customAuthorizer
- httpApi: # Escape swagger
method: get
path: /swagger
- httpApi: # Escape swagger
method: get
path: /swagger/{proxy+}
- httpApi: # escaping the OPTIONS call
method: options
path: /{proxy+}
- httpApi: # Escape swagger base url staged
method: get
path: /${self:provider.stage}/swagger
- httpApi: # Escape swagger staged
method: get
path: /${self:provider.stage}/swagger/{proxy+}
My package.json:
{
"name": "application-compliance-suite-monorepo",
"version": "0.0.0",
"license": "MIT",
"scripts": {
"nx": "nx",
"be:local": "nx run backend:serve:local",
"fe:local": "nx run frontend:serve:local"
},
"private": true,
"devDependencies": {
"@angular-devkit/build-angular": "16.0.0",
"@angular-eslint/eslint-plugin": "16.0.1",
"@angular-eslint/eslint-plugin-template": "16.0.1",
"@angular-eslint/template-parser": "16.0.1",
"@angular/cli": "16.0.0",
"@angular/compiler-cli": "16.0.0",
"@angular/language-service": "16.0.0",
"@nestjs/testing": "9.1.1",
"@ngxs/devtools-plugin": "^3.8.1",
"@ngxs/logger-plugin": "^3.8.1",
"@nx/angular": "16.1.4",
"@nx/cypress": "16.1.4",
"@nx/esbuild": "16.1.4",
"@nx/eslint-plugin": "16.1.4",
"@nx/jest": "16.1.4",
"@nx/js": "16.1.4",
"@nx/linter": "16.1.4",
"@nx/nest": "16.1.4",
"@nx/node": "16.1.4",
"@nx/workspace": "16.1.4",
"@types/aws-lambda": "^8.10.110",
"@types/jest": "^28.1.1",
"@types/node": "18.7.1",
"@types/node-rsa": "^1.1.1",
"@types/passport-jwt": "^3.0.6",
"@types/uuid": "^9.0.0",
"@typescript-eslint/eslint-plugin": "5.58.0",
"@typescript-eslint/parser": "5.58.0",
"aws-cdk": "^2.62.0",
"aws-cdk-lib": "^2.62.0",
"constructs": "^10.1.231",
"copy-webpack-plugin": "^11.0.0",
"cypress": "^12.2.0",
"esbuild": "0.17.17",
"eslint": "~8.15.0",
"eslint-config-prettier": "8.1.0",
"eslint-plugin-cypress": "^2.10.3",
"eslint-plugin-prettier": "^4.2.1",
"jest": "^29.5.0",
"jest-environment-jsdom": "^29.5.0",
"jest-preset-angular": "13.1.0",
"ng-packagr": "^16.0.1",
"ngx-translate-testing": "^6.1.0",
"nx": "16.1.4",
"postcss": "^8.4.5",
"postcss-import": "~14.1.0",
"postcss-preset-env": "~7.5.0",
"postcss-url": "~10.1.3",
"prettier": "^2.6.2",
"serverless": "^3.26.0",
"serverless-offline": "^12.0.4",
"serverless-plugin-reducer": "^4.0.1",
"serverless-webpack": "^5.11.0",
"ts-jest": "29.1.0",
"ts-node": "10.9.1",
"typescript": "5.0.4"
},
"dependencies": {
"@angular/animations": "16.0.0",
"@angular/cdk": "16.0.0",
"@angular/common": "16.0.0",
"@angular/compiler": "16.0.0",
"@angular/core": "16.0.0",
"@angular/forms": "16.0.0",
"@angular/material": "16.0.0",
"@angular/platform-browser": "16.0.0",
"@angular/platform-browser-dynamic": "16.0.0",
"@angular/router": "16.0.0",
"@automapper/classes": "^8.7.7",
"@automapper/core": "^8.7.7",
"@automapper/nestjs": "^8.7.7",
"@automapper/types": "^6.3.1",
"@aws-sdk/client-secrets-manager": "^3.264.0",
"@aws-sdk/client-sqs": "^3.272.0",
"@fastify/aws-lambda": "^3.0.0",
"@fastify/static": "^6.10.2",
"@fastify/swagger": "^8.3.1",
"@nestjs/common": "9.1.1",
"@nestjs/config": "^2.3.0",
"@nestjs/core": "9.1.1",
"@nestjs/jwt": "^10.0.0",
"@nestjs/passport": "^9.0.0",
"@nestjs/platform-fastify": "^9.2.0",
"@nestjs/schematics": "9.1.0",
"@nestjs/swagger": "6.3.0",
"@nestjs/typeorm": "^9.0.1",
"@ngx-translate/core": "^14.0.0",
"@ngx-translate/http-loader": "^7.0.0",
"@ngxs/store": "^3.8.1",
"angular-auth-oidc-client": "^15.0.3",
"axios": "^1.2.3",
"class-transformer": "^0.5.1",
"class-validator": "^0.14.0",
"css-vars-ponyfill": "^2.4.8",
"node-rsa": "^1.1.1",
"passport": "^0.6.0",
"passport-custom": "^1.1.1",
"pg": "^8.11.0",
"reflect-metadata": "^0.1.13",
"rxjs": "~7.5.0",
"tslib": "^2.5.0",
"typeorm": "^0.3.16",
"zone.js": "^0.13.0"
}
}
And I am running Windows 10, Node 18.16.0. I've also checked my laptop utilization (CPU,..) and that's also fine. Do you know why this happens and how to get rid of it?