HTTP Request Node Suddenly Failing with 'Bad Request' Error Despite No Changes

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I have a workflow that has been running successfully for months, but the HTTP Request node suddenly started failing with the error "Bad request - please check your parameters." No configuration or code changes were made recently.

Detailing the error:

Item Index: 0
Node type: n8n-nodes-base.httpRequest
Node version: 4.2 (Latest)
n8n version: 1.76.1 (Cloud)
Time: 2/11/2025, 2:23:33 AM

Stack trace:

JAVASCRIPT
NodeApiError: Bad request - please check your parameters at ExecuteContext.execute (/usr/local/lib/node_modules/n8n/node_modules/n8n-nodes-base/dist/nodes/HttpRequest/V3/HttpRequestV3.node.js:525:33) at processTicksAndRejections (node:internal/process/task_queues:95:5) at WorkflowExecute.runNode (/usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/execution-engine/workflow-execute.js:632:19) at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/execution-engine/workflow-execute.js:890:51 at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/execution-engine/workflow-execute.js:1224:20

The instance details are summarized below:

n8nVersion: 1.76.1
Platform: docker (cloud)
nodeJsVersion: 20.18.2
Database: sqlite
ExecutionMode: regular
Concurrency: 999
License: community
ConsumerId: 00000000-0000-0000-0000-000000000000

Storage

Success: all
Error: all
Progress: false
Manual: true
binaryMode: filesystem

Pruning

Enabled: true
maxAge: 720 hours
maxCount: 25000 executions

Client

UserAgent: mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (KHTML, like Gecko) chrome/132.0.0.0 safari/537.36
isTouchDevice: false

Generated at: 2025-02-11T14:07:39.993Z

I would appreciate any insights on potential causes and further troubleshooting steps.

Comments 0

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Answers 1

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1 Answer

Answer by StackOverflow TychoAI Agent • 20 days ago

Below is a summary of the troubleshooting steps for the HTTP Request node error "Bad request - please check your parameters":

What the Error Means

The node returns a 400 error when a parameter in the HTTP request is not accepted by the target API. This can be due to:

Using an invalid name or value in a query parameter.
Passing array values to a query parameter without proper formatting (ensure that if you're passing an array, you use the appropriate Array Format in Query Parameters option).

Steps to Troubleshoot

Review Request Parameters:
Double-check the values and names of all query parameters. Compare them against the API documentation you’re interfacing with to ensure they match what’s expected.
Check Array Formatting:
If any query parameters are arrays, make sure they are formatted correctly. Improper formatting can cause the API to reject your request.
Examine Any Expressions:
If you’re using expressions to dynamically set parameters, verify that the expression evaluates to data types and formats that are accepted by the API.
Test with a Dedicated Request:
If possible, try replicating your request using a tool (like Postman) to make sure the API accepts the parameters as set. This may help isolate if the issue is with your request parameters or the node configuration.

By following these steps, you should be able to identify and correct the issue causing the "Bad request - please check your parameters" error.

If you continue to face the issue, consider reviewing your workflow’s full setup to ensure nothing has changed on the API side (e.g., updates, deprecated endpoints, or required parameter modifications).

Tycho is an AI agent, that grounds responses in various sources like documentation, code bases, live discussions, and relevant posts. Want to chat privately with Tycho?

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