#111993

ERR_INVALID_ARG_TYPE in Frontend Service Input Handling

Errornodejs

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{"attachments":null,"browser":null,"device":null,"endpoint_hash":null,"environment":null,"error_type":"ERR_INVALID_ARG_TYPE","geo_city":null,"geo_country":null,"geo_region":null,"handled":null,"hash":"f56f404c","is_framework":false,"level":null,"mechanism":null,"message":"The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object","os":null,"parent_hash":"f56f404c","parent_span_id":"c7df2ae650c67a24","project_id":"00000000-0000-0000-0000-000000000000","release":null,"request_headers":null,"request_method":null,"request_path":null,"root_error_message":"The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object","root_error_type":"ERR_INVALID_ARG_TYPE","runtime":"nodejs","service_name":"frontend","session_id":null,"shape_hash":null,"span_id":"476a15a0c4522fa7","stack_trace":"TypeError: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object\n    at Buffer.from (node:buffer:364:9)\n    at setAttributes (/app/node_modules/@monoscopetech/common/dist/apitoolkit.js:26:41)\n    at /app/node_modules/@monoscopetech/next/dist/main.js:85:44\n    at process.processTicksAndRejections (node:internal/process/task_queues:104:5)\n    at async tO (/app/node_modules/next/dist/compiled/next-server/pages-api-turbo.runtime.prod.js:1:107804)\n    at async tA.render (/app/node_modules/next/dist/compiled/next-server/pages-api-turbo.runtime.prod.js:1:108519)\n    at async Module.p [as handler] (/app/.next/server/chunks/_1mapfd3._.js:1:3204)\n    at async NextNodeServer.runApi (/app/node_modules/next/dist/server/next-server.js:700:9)\n    at async NextNodeServer.handleCatchallRenderRequest (/app/node_modules/next/dist/server/next-server.js:335:37)\n    at async NextNodeServer.handleRequestImpl (/app/node_modules/next/dist/server/base-server.js:979:17)","technology":null,"tenant_name":null,"thread_id":null,"thread_name":null,"trace_id":"b6ca82bd5f115b006d140428d8ef7ae8","url_full":null,"url_query":null,"user_agent":null,"user_email":null,"user_id":null,"user_ip":null,"user_name":null,"when":"2026-08-27T08:15:54.127Z"}

## ERR_INVALID_ARG_TYPE in Frontend Service Input Handling

- Type: runtime_exception
- Severity: info
- Service: frontend

```
ERR_INVALID_ARG_TYPE: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object
TypeError: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object
    at Buffer.from (node:buffer:364:9)
    at setAttributes (/app/node_modules/@monoscopetech/common/dist/apitoolkit.js:26:41)
    at /app/node_modules/@monoscopetech/next/dist/main.js:85:44
    at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
    at async tO (/app/node_modules/next/dist/compiled/next-server/pages-api-turbo.runtime.prod.js:1:107804)
    at async tA.render (/app/node_modules/next/dist/compiled/next-server/pages-api-turbo.runtime.prod.js:1:108519)
    at async Module.p [as handler] (/app/.next/server/chunks/_1mapfd3._.js:1:3204)
    at async NextNodeServer.runApi (/app/node_modules/next/dist/server/next-server.js:700:9)
    at async NextNodeServer.handleCatchallRenderRequest (/app/node_modules/next/dist/server/next-server.js:335:37)
    at async NextNodeServer.handleRequestImpl (/app/node_modules/next/dist/server/base-server.js:979:17)
```

Jump to:Highlights Contexts Stack trace Event grouping Trace Logs All events

Highlights

trace.id: b6ca82bd5f115b006d140428d8ef7ae8

Contexts

Runtime

runtime: nodejs
service: frontend

Trace

trace.id: b6ca82bd5f115b006d140428d8ef7ae8
span.id: 476a15a0c4522fa7
parent_span.id: c7df2ae650c67a24

Stack trace

Error message

The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object

p [as handler] (/app/.next/server/chunks/_1mapfd3._.js:1

Show 9 runtime frames

Raw

TypeError: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object
    at Buffer.from (node:buffer:364:9)
    at setAttributes (/app/node_modules/@monoscopetech/common/dist/apitoolkit.js:26:41)
    at /app/node_modules/@monoscopetech/next/dist/main.js:85:44
    at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
    at async tO (/app/node_modules/next/dist/compiled/next-server/pages-api-turbo.runtime.prod.js:1:107804)
    at async tA.render (/app/node_modules/next/dist/compiled/next-server/pages-api-turbo.runtime.prod.js:1:108519)
    at async Module.p [as handler] (/app/.next/server/chunks/_1mapfd3._.js:1:3204)
    at async NextNodeServer.runApi (/app/node_modules/next/dist/server/next-server.js:700:9)
    at async NextNodeServer.handleCatchallRenderRequest (/app/node_modules/next/dist/server/next-server.js:335:37)
    at async NextNodeServer.handleRequestImpl (/app/node_modules/next/dist/server/base-server.js:979:17)

Event grouping

Events join this issue when their fingerprint matches: the error type, the message with volatile parts (ids, numbers, hex) replaced, the service, the span name, and the in-app frames.

normalized: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object
fingerprint: f56f404c
across routes: f56f404c

Trace

Logs

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