583 lines
14 KiB
JSON
583 lines
14 KiB
JSON
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"path": "94d08900-4816-4c74-962a-aacff5077d5d",
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"jsCode": "// Parse the Slack payload\nconst payload = JSON.parse($('Incoming Webhook Data').first().json[\"body\"][\"payload\"]);\n\n// Extract button action details\nconst var1 = payload.var1;\nconst var2 = payload.var2;\nconst var3 = payload.var3;\n\n// Log or return the details\nreturn {\n var1 : var1,\n var2: var2,\n var3: var3,\n lockValue : `${var1}-${var2}-${var3}`\n};"
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"name": "Check Redis Lock",
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],
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"parameters": {
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"key": "xyz-lock",
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"operation": "get",
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"propertyName": "Element"
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},
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"credentials": {
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"redis": {
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"id": "o0RxOKCtencIaop1",
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"name": "Geoffrey Redis"
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{
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"id": "c1488bae-cb82-48ce-94cd-5359d7d10b04",
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"name": "Acquire Redis Lock",
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"type": "n8n-nodes-base.redis",
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"position": [
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],
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"parameters": {
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"key": "xyz-lock",
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"ttl": 180,
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"value": "={{ $('Fetch Webhook Data & Declare lockValue').item.json.lookupVariable }}",
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"expire": true,
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"operation": "set"
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},
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"credentials": {
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"redis": {
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"id": "o0RxOKCtencIaop1",
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"name": "Geoffrey Redis"
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}
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},
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{
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"id": "0fe5e1d8-f1e4-40e0-a3a4-4c00bbf2b50b",
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"name": "redisLock existence boolean",
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"conditions": {
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"options": {
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"leftValue": "",
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"caseSensitive": true,
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"typeValidation": "strict"
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{
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"operation": "empty",
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"singleValue": true
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},
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"leftValue": "={{ $json.Element }}",
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"rightValue": ""
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}
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}
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{
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"id": "3c66fab5-2c2a-4bba-8ba1-ed85e57cd42d",
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"name": "redisLock acquired booleans",
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"type": "n8n-nodes-base.if",
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"conditions": {
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"options": {
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"version": 2,
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"leftValue": "",
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"caseSensitive": true,
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"typeValidation": "strict"
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},
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"combinator": "and",
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"conditions": [
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{
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"id": "6c071e68-a15a-4da8-b962-fe173b1eb145",
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"operator": {
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"operation": "notExists",
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"singleValue": true
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"leftValue": "={{ $json.Element }}",
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"rightValue": ""
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}
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}
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"typeVersion": 2.2
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},
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{
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"id": "787d1c86-1a66-40ea-b8b6-29f50a48737c",
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"name": "Poll for lock",
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"type": "n8n-nodes-base.wait",
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"position": [
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420
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],
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"webhookId": "615b4c18-2c29-418c-a2bf-302ff24e5c65",
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"parameters": {},
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"typeVersion": 1.1
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},
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{
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"id": "f5b88169-e97b-4359-890e-969dbdc6d829",
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"name": "duplicateWebhook boolean",
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"type": "n8n-nodes-base.if",
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"position": [
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],
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"parameters": {
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"options": {},
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"conditions": {
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"options": {
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"version": 2,
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"leftValue": "",
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"caseSensitive": true,
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"typeValidation": "strict"
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},
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"combinator": "and",
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"conditions": [
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{
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"id": "08500e34-cc7f-4005-87bd-f7250dc076fe",
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"operator": {
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"name": "filter.operator.equals",
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"type": "string",
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"operation": "equals"
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},
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"leftValue": "={{ $('Fetch Webhook Data & Declare lockValue').item.json.lookupVariable }}",
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"rightValue": "={{ $input.first().json.Element }}"
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}
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]
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}
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},
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{
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"id": "db4e4149-7970-402c-a3d7-2cfe47b6a5b7",
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"name": "Sticky Note",
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"type": "n8n-nodes-base.stickyNote",
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"position": [
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],
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"parameters": {
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"color": 6,
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"width": 480,
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"height": 220,
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"content": "#### 🔒 This workflow demonstrates Redis-based locking to prevent concurrent execution of workflows.\n\n**Steps:**\n+ Try to acquire a lock via Redis\n+ If successful, execute workflow\n+ If duplicate request; ignore request\n+ Release the lock after completion"
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},
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"typeVersion": 1
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},
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{
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"id": "879b7ab5-402b-4ea8-977b-64d29cd9bb39",
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"name": "Discard Redis Lock",
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"type": "n8n-nodes-base.redis",
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"position": [
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-2320,
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200
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],
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"parameters": {
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"key": "n8n-rca-lock",
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"operation": "delete"
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},
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"credentials": {
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"redis": {
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"id": "o0RxOKCtencIaop1",
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"name": "Geoffrey Redis"
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}
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},
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"typeVersion": 1
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},
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{
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"id": "494030d6-e731-4f4f-9193-7b46f2d470d0",
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"name": "Sticky Note1",
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"type": "n8n-nodes-base.stickyNote",
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"position": [
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-3580,
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80
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],
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"parameters": {
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"color": 5,
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"width": 220,
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"height": 80,
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"content": "Attempts to acquire a lock using Redis by setting a key with expiration."
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},
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"typeVersion": 1
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},
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{
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"id": "a643b45e-2067-4c42-8c1c-365b3fea911a",
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"name": "Workflow Switch",
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"type": "n8n-nodes-base.switch",
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"position": [
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],
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"parameters": {
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"rules": {
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"values": [
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{
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"outputKey": "1",
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"conditions": {
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"options": {
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"version": 2,
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"leftValue": "",
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"caseSensitive": true,
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"typeValidation": "strict"
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},
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"combinator": "and",
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"conditions": [
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{
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"id": "2761039b-e76c-4606-9aaf-48a569942ab7",
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"operator": {
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"type": "string",
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"operation": "equals"
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},
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"leftValue": "",
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"rightValue": ""
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}
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]
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},
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"renameOutput": true
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},
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{
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"outputKey": "2",
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"conditions": {
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"options": {
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"version": 2,
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"leftValue": "",
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"caseSensitive": true,
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"typeValidation": "strict"
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},
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"combinator": "and",
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"conditions": [
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{
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"id": "ef07c62f-bd3f-4f54-85b9-9dbf64915f2c",
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"renameOutput": true
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},
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{
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"outputKey": "3",
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"conditions": {
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},
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{
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}
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},
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"renameOutput": true
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}
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]
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},
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"options": {}
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},
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"typeVersion": 3.2
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},
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{
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"id": "5531d4c3-158c-4f98-b6fa-9ef9a85eef71",
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"name": "Sticky Note2",
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"type": "n8n-nodes-base.stickyNote",
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"position": [
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],
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"parameters": {
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"color": 5,
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"height": 80,
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"content": "Skips execution when duplicate request is received."
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},
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"typeVersion": 1
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},
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{
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"id": "0a159f03-3ecc-4010-ab63-cc24df90df31",
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"name": "Sticky Note3",
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"type": "n8n-nodes-base.stickyNote",
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"position": [
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],
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"parameters": {
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"color": 5,
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"height": 80,
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"content": "Deletes the Redis lock key to release the lock."
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},
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"typeVersion": 1
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}
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],
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"connections": {
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"Workflow 1": {
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"main": [
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[
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{
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"node": "Discard Redis Lock",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Workflow 2": {
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"main": [
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[
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{
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"node": "Discard Redis Lock",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Workflow 3": {
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"main": [
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[
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{
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"node": "Discard Redis Lock",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Poll for lock": {
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"main": [
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[
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{
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"node": "duplicateWebhook boolean",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Workflow Switch": {
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"main": [
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[
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{
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"node": "Workflow 1",
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"type": "main",
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"index": 0
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}
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],
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[
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{
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"node": "Workflow 2",
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"type": "main",
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"index": 0
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}
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],
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[
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{
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"node": "Workflow 3",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Check Redis Lock": {
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"main": [
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[
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{
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"node": "redisLock existence boolean",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Acquire Redis Lock": {
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"main": [
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[
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{
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"node": "Workflow Switch",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Incoming Webhook Data": {
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"main": [
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[
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{
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"node": "Fetch Webhook Data & Declare lockValue",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"duplicateWebhook boolean": {
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"main": [
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[
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{
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"node": "END",
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"type": "main",
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"index": 0
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}
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],
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[
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{
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"node": "Check Redis Lock",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"redisLock acquired booleans": {
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"main": [
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[
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{
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"node": "Acquire Redis Lock",
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"type": "main",
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"index": 0
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}
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],
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[
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{
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"node": "Poll for lock",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"redisLock existence boolean": {
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"main": [
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[
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{
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"node": "Acquire Redis Lock",
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"type": "main",
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"index": 0
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}
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],
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[
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{
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"node": "redisLock acquired booleans",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"Fetch Webhook Data & Declare lockValue": {
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"main": [
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[
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{
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"node": "Check Redis Lock",
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"type": "main",
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"index": 0
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}
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]
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]
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}
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}
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} |