Describe the problem/error/question
I try to get a frame and i have an error message that I don’t understant
What is the error message (if any)?
Please share your workflow
(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
{
"nodes": [
{
"parameters": {
"url": "={{ $json.response_url }}",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
480,
0
],
"id": "eab17ab2-0064-4187-afec-14b0820af0c9",
"name": "get frame",
"credentials": {
"httpHeaderAuth": {
"id": "qDaoJkDsMdas24Rb",
"name": "FAL AI"
}
}
},
{
"parameters": {
"method": "POST",
"url": "https://queue.fal.run/fal-ai/ffmpeg-api/extract-frame",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"video_url\": \"{{ $json.video_urls }}\",\n \"frame_type\": \"last\"\n}",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
160,
0
],
"id": "3258d01f-2cda-49e0-acc5-2a91bfc52c9e",
"name": "extract frame",
"credentials": {
"httpHeaderAuth": {
"id": "qDaoJkDsMdas24Rb",
"name": "FAL AI"
}
}
},
{
"parameters": {
"amount": 60
},
"type": "n8n-nodes-base.wait",
"typeVersion": 1.1,
"position": [
320,
0
],
"id": "b45ca5c4-3965-4591-ba39-f576b1f7e1d6",
"name": "Wait2",
"webhookId": "c85c9304-86da-40c6-87c8-fd24d4aa57fa"
},
{
"parameters": {
"workflowInputs": {
"values": [
{
"name": "video_urls",
"type": "any"
}
]
}
},
"id": "6190d379-e60b-474e-9214-db37014d72bf",
"typeVersion": 1.1,
"name": "Start",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
0,
0
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "2f0b1204-bc75-4d5f-9151-93cff3095209",
"name": "last_frame_url",
"value": "={{ $json.images[0].url }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
640,
0
],
"id": "b304bf5f-e93d-4f18-a901-2b5e86e02200",
"name": "Last frame"
}
],
"connections": {
"get frame": {
"main": [
[
{
"node": "Last frame",
"type": "main",
"index": 0
}
]
]
},
"extract frame": {
"main": [
[
{
"node": "Wait2",
"type": "main",
"index": 0
}
]
]
},
"Wait2": {
"main": [
[
{
"node": "get frame",
"type": "main",
"index": 0
}
]
]
},
"Start": {
"main": [
[
{
"node": "extract frame",
"type": "main",
"index": 0
}
]
]
}
},
"pinData": {},
"meta": {
"instanceId": "bc59114887a406be5fc76aa002f900faf8bf5273e86ae9879c340315e31ccc61"
}
}
Share the output returned by the last node
Error code
400
Full message
400 - “{"detail":"Failed to download video file: "}”
Request
{ “headers”: { “Authorization”: “hidden”, “accept”: “application/json,text/html,application/xhtml+xml,application/xml,text/;q=0.9, image/;q=0.8, /;q=0.7” }, “method”: “GET”, “uri”: “https://queue.fal.run/fal-ai/ffmpeg-api/requests/15f06a49-c822-4376-b53f-1a481d919963”, “gzip”: true, “rejectUnauthorized”: true, “followRedirect”: true, “resolveWithFullResponse”: true, “followAllRedirects”: true, “timeout”: 300000, “encoding”: null, “json”: false, “useStream”: true }
Other info
Item Index
2
Node type
n8n-nodes-base.httpRequest
Node version
4.2 (Latest version: 4.3)
n8n version
1.123.5-exp.0 (Cloud)
Time
10/12/2025 22:49:57
Stack trace
NodeApiError: Bad request - please check your parameters at ExecuteContext.execute (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-nodes-base@file+packages+nodes-base_@[email protected]_asn1.js@5_8da18263ca0574b0db58d4fefd8173ce/node_modules/n8n-nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts:859:16) at processTicksAndRejections (node:internal/process/task_queues:105:5) at WorkflowExecute.executeNode (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_ec37920eb95917b28efaa783206b20f3/node_modules/n8n-core/src/execution-engine/workflow-execute.ts:1045:8) at WorkflowExecute.runNode (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_ec37920eb95917b28efaa783206b20f3/node_modules/n8n-core/src/execution-engine/workflow-execute.ts:1226:11) at /usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_ec37920eb95917b28efaa783206b20f3/node_modules/n8n-core/src/execution-engine/workflow-execute.ts:1662:27 at /usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_ec37920eb95917b28efaa783206b20f3/node_modules/n8n-core/src/execution-engine/workflow-execute.ts:2274:11
Information on your n8n setup
- n8n version:
- Database (default: SQLite):
- n8n EXECUTIONS_PROCESS setting (default: own, main):
- Running n8n via (Docker, npm, n8n cloud, desktop app):
- Operating system:
