Marco Cassar This workflow corresponds to n8n.io template #7568 — we link there as the canonical source.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"nodes": [
{
"id": "1003f9f2-98a2-4690-bc36-dec428c71e46",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
64,
224
],
"parameters": {
"color": 4,
"width": 512,
"height": 480,
"content": "# Running the Workflow\n\n## Run it\n- Click **Execute** (or **Execute workflow**).\n- Make sure `service_url` and option `service_path` is set.\n\n## What happens\n- Calls the **Service Auth (sub-workflow)** to validate or create a Google **ID token**.\n- Calls your **Google Cloud Run** service with `Authorization: Bearer <id_token>` and returns the endpoint\u2019s response.\n\n## Check results\n- Open the **Cloud Run Request** node to see the status and response body.\n- If it fails, inspect the **Bearer YOUR_TOKEN_HERE Request** output and Cloud Run logs."
},
"typeVersion": 1
},
{
"id": "c06b15b6-7619-4b5e-a2d6-cd7b3b4f5a91",
"name": "Sticky Note8",
"type": "n8n-nodes-base.stickyNote",
"position": [
640,
576
],
"parameters": {
"color": 2,
"width": 432,
"height": 336,
"content": "## Extra Configurations for Workflow\n### Google Credentials (Service Account)\n- Open a **Google** node \u2192 **Create New Credential**\n- **Authentication:** Service Account\n- **Service account email:** `client_email` from your `.json private key`\n- **Private key:** `private_key` from your `.json private key` (entire block, incl. BEGIN/END)\n- **Save** the credential \n- **Enable the relevant Google API** in Cloud Console (e.g., Sheets API, Drive API), and **share the target resource** with the service account\u2019s `client_email` (e.g., share the Sheet/Folder so it has access).\n* Save Credential\n"
},
"typeVersion": 1
},
{
"id": "8da22b71-e554-4d44-91c6-e6e2a2c4adeb",
"name": "Check Auth",
"type": "n8n-nodes-base.executeWorkflow",
"position": [
1920,
352
],
"parameters": {
"options": {},
"workflowId": {
"__rl": true,
"mode": "list",
"value": "3lkAlfsxT2cnJztz",
"cachedResultName": "Templates \u2014 Service Auth (sub-workflow)"
},
"workflowInputs": {
"value": {
"id_token": "={{ $json.id_token }}",
"service_url": "={{ $json.service_url }}",
"service_path": "={{ $json.service_path }}"
},
"schema": [
{
"id": "id_token",
"type": "string",
"display": true,
"required": false,
"displayName": "id_token",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "service_url",
"type": "string",
"display": true,
"required": false,
"displayName": "service_url",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "service_path",
"type": "string",
"display": true,
"required": false,
"displayName": "service_path",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": true
}
},
"typeVersion": 1.2
},
{
"id": "ab91bde5-4063-40eb-a096-2cbfbbb853c7",
"name": "Execute",
"type": "n8n-nodes-base.manualTrigger",
"position": [
464,
256
],
"parameters": {},
"typeVersion": 1
},
{
"id": "e5b5ae39-5420-4c34-9631-1135a1c7aee3",
"name": "Collect Context Example",
"type": "n8n-nodes-base.merge",
"position": [
1184,
256
],
"parameters": {
"mode": "combine",
"options": {},
"combineBy": "combineAll"
},
"executeOnce": false,
"typeVersion": 3.2
},
{
"id": "ea8eeea6-463a-4278-a45c-ab8c36c4ce78",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
1120,
224
],
"parameters": {
"color": 2,
"width": 224,
"height": 432,
"content": "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n### Merge node \u2014 gathers all context.\n\nUse a **Merge** node to add the auth context (`id_token`) to items.\n\n- **Mode:** `Combine`\n- **Combine By:** `All Possible Combinations`"
},
"typeVersion": 1
},
{
"id": "1df841ed-f332-4760-8d14-7afd658b8b0f",
"name": "Set Example Context Fields",
"type": "n8n-nodes-base.set",
"position": [
928,
352
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "f8beba00-56f3-4af8-9725-88f79c65afa2",
"name": "example_context",
"type": "string",
"value": "a very interesting value"
},
{
"id": "d192b7f3-1cd8-48fc-962f-49e1aba32e08",
"name": "array_of_soups",
"type": "array",
"value": "={{[\"ramen\", \"udon\", \"chicken noodle\", \"pho\"]}}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "643a2331-8643-4fca-8582-e3ec006469d0",
"name": "Split Out",
"type": "n8n-nodes-base.splitOut",
"position": [
1472,
256
],
"parameters": {
"include": "allOtherFields",
"options": {
"destinationFieldName": "soup"
},
"fieldToSplitOut": "array_of_soups"
},
"typeVersion": 1
},
{
"id": "86d0adfc-a48e-4649-b659-f3caf27d75cc",
"name": "Sticky Note9",
"type": "n8n-nodes-base.stickyNote",
"position": [
1408,
16
],
"parameters": {
"color": 2,
"width": 224,
"height": 384,
"content": "### Split Out node \u2014 iterate array, keep context\n- **Operation:** Split Out Items\n- **Field to split:** `<your_array_field>`\n- **Include:** **All other fields** (keeps `id_token`, `service_url`, etc.)\n- **Result:** one item per array element"
},
"typeVersion": 1
},
{
"id": "fc6c3e1f-dd75-4ded-aede-debe8e5b1d6e",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
1696,
336
],
"parameters": {
"width": 336,
"content": "#### Point to Service Auth\n#### (sub-workflow)\n\n###### If you are lost\n###### read my Medium article\n###### linked in the main sticky note"
},
"typeVersion": 1
},
{
"id": "191ec402-a438-4a20-a39c-73e4c78350e6",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
896,
80
],
"parameters": {
"width": 166,
"height": 224,
"content": "###### Point To\n\n###### Service Auth \n###### (sub-workflow)\n\n"
},
"typeVersion": 1
},
{
"id": "da178c80-a687-45cf-9d78-f8f3b877962e",
"name": "Get Auth",
"type": "n8n-nodes-base.executeWorkflow",
"position": [
928,
176
],
"parameters": {
"options": {},
"workflowId": {
"__rl": true,
"mode": "list",
"value": "3lkAlfsxT2cnJztz",
"cachedResultName": "Templates \u2014 Service Auth (sub-workflow)"
},
"workflowInputs": {
"value": {
"service_url": "={{ $json.service_url }}",
"service_path": "={{ $json.service_path }}"
},
"schema": [
{
"id": "id_token",
"type": "string",
"display": true,
"required": false,
"displayName": "id_token",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "service_url",
"type": "string",
"display": true,
"required": false,
"displayName": "service_url",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "service_path",
"type": "string",
"display": true,
"required": false,
"displayName": "service_path",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": true
}
},
"typeVersion": 1.2
},
{
"id": "74dee137-1db5-4884-a7da-5f52d88dbaac",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
0
],
"parameters": {
"color": 2,
"width": 672,
"height": 208,
"content": "## Required Setup \u2014 Google Cloud Run & Service Account\n### You\u2019ll need to:\n- **Configure a Google Cloud Run service** (set **Require authentication**).\n- **Create a Google Service Account** and grant it **Cloud Run Invoker** permission on that service.\n\nFor a detailed, step-by-step breakdown, see my Medium article:\n\n**[Build a Secure Google Cloud Run API, Then Call It from n8n (Free Tier)](https://medium.com/@marcocodes/build-a-secure-google-cloud-run-api-then-call-it-from-n8n-88c03291a95f)**"
},
"typeVersion": 1
},
{
"id": "6e7dd64a-0623-4f85-a15f-d963295d9c59",
"name": "Cloud Run Request",
"type": "n8n-nodes-base.httpRequest",
"position": [
2128,
480
],
"parameters": {
"url": "={{ $('Loop Over Items').item.json.service_url }}{{ $('Loop Over Items').item.json.service_path }}",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpBearerAuth"
},
"credentials": {
"httpBearerAuth": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "0a8b37cb-d0a0-4cb1-9e58-bea8adee5cb1",
"name": "Loop Over Items",
"type": "n8n-nodes-base.splitInBatches",
"position": [
1728,
176
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "bdcd0698-6749-4216-be57-c1589585da8c",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
704,
16
],
"parameters": {
"color": 2,
"width": 166,
"height": 288,
"content": "#### Var Config\n- **service_url** - base url to cloud run service\n- **service_path** - (optional) page path"
},
"typeVersion": 1
},
{
"id": "ffa80822-56aa-43f4-8da9-35c455024f5c",
"name": "Vars",
"type": "n8n-nodes-base.set",
"position": [
736,
176
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "0ff6e5eb-9ffe-4e28-b889-1feb58a59f39",
"name": "service_url",
"type": "string",
"value": ""
},
{
"id": "50ad4676-74f4-4e9c-bd9d-3f7a9424eee1",
"name": "service_path",
"type": "string",
"value": ""
}
]
}
},
"typeVersion": 3.4
},
{
"id": "8e09bb36-88f4-41fb-b0d7-e911f513f798",
"name": "Done",
"type": "n8n-nodes-base.noOp",
"position": [
1920,
112
],
"parameters": {},
"typeVersion": 1
}
],
"connections": {
"Vars": {
"main": [
[
{
"node": "Get Auth",
"type": "main",
"index": 0
}
]
]
},
"Execute": {
"main": [
[
{
"node": "Set Example Context Fields",
"type": "main",
"index": 0
},
{
"node": "Vars",
"type": "main",
"index": 0
}
]
]
},
"Get Auth": {
"main": [
[
{
"node": "Collect Context Example",
"type": "main",
"index": 0
}
]
]
},
"Split Out": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Check Auth": {
"main": [
[
{
"node": "Cloud Run Request",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items": {
"main": [
[
{
"node": "Done",
"type": "main",
"index": 0
}
],
[
{
"node": "Check Auth",
"type": "main",
"index": 0
}
]
]
},
"Cloud Run Request": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Collect Context Example": {
"main": [
[
{
"node": "Split Out",
"type": "main",
"index": 0
}
]
]
},
"Set Example Context Fields": {
"main": [
[
{
"node": "Collect Context Example",
"type": "main",
"index": 1
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
httpBearerAuth
Pro
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About this workflow
Anyone who wants a simple, secure way to call a Google Cloud Run endpoint from n8n—without exposing it publicly.
Source: https://n8n.io/workflows/7568/ — original creator credit. Request a take-down →
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