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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Using Exceptionless for nodejs causes problems with AWS Lambda functions","articleBody":"I tried using the exceptionless client for nodejs `@exceptionless/node` version `3.0.4` as follows:\r\n\r\n```\r\n await Exceptionless.startup(c =\u003e {\r\n            c.apiKey = 'blah';\r\n        });\r\n```\r\n\r\nWhen running the program as an AWS Lambda function, it throws the following error:\r\n\r\n```\r\n{\r\n    \"errorType\": \"Error\",\r\n    \"errorMessage\": \"ENOENT: no such file or directory, mkdir '/var/task/.exceptionless'\",\r\n    \"code\": \"ENOENT\",\r\n    \"errno\": -2,\r\n    \"syscall\": \"mkdir\",\r\n    \"path\": \"/var/task/.exceptionless\",\r\n    \"stack\": [\r\n        \"Error: ENOENT: no such file or directory, mkdir '/var/task/.exceptionless'\",\r\n        \"    at Object.mkdirSync (node:fs:1398:3)\",\r\n        \"    at LocalStorage._init (/var/task/node_modules/node-localstorage/LocalStorage.js:174:16)\",\r\n        \"    at new LocalStorage (/var/task/node_modules/node-localstorage/LocalStorage.js:114:14)\",\r\n        \"    at NodeExceptionlessClient.startup (file:///var/task/node_modules/@exceptionless/node/dist/NodeExceptionlessClient.js:13:57)\",\r\n        \"    at ExceptionlessService.startup (file:///var/task/dist/services/exceptionless.service.js:27:29)\",\r\n        \"    at AppModule.getAppContext (file:///var/task/dist/app.module.js:34:40)\",\r\n        \"    at async AppModule.getAppService (file:///var/task/dist/app.module.js:40:25)\",\r\n        \"    at async handle (file:///var/task/dist/index.js:17:24)\",\r\n        \"    at async Runtime.handler (file:///var/task/dist/index.js:6:5)\",\r\n        \"    at async Runtime.handleOnceStreaming (file:///var/runtime/index.mjs:1206:26)\"\r\n    ]\r\n}\r\n```\r\n\r\nThis is caused by the `NodeExceptionlessClient` class using the `LocalStoragePolyfill`.\r\nIt's not possible to write to the partition where the script runs on AWS Lambda as far as I know. I couldn't find a way to override the usage of the `LocalStoragePolyfill` to use memory storage either. Am I overlooking something or is this an issue that needs to be addressed?\r\n\r\n","author":{"url":"https://github.com/kareldonk","@type":"Person","name":"kareldonk"},"datePublished":"2023-10-23T17:56:33.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/140/Exceptionless.JavaScript/issues/140"}