The workflow JSON
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{
"name": "Financial",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "70d4d45f-b4c4-4b95-97e2-5b3e25446465",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2.1,
"position": [
-672,
160
],
"id": "16591560-e347-4d44-a7db-ca25888f7b92",
"name": "Webhook"
},
{
"parameters": {
"jsCode": "const output = [];\n\n$\n\nconst TARGET_GROUP_ID = \"120363407108176682@g.us\"; \nconst transactionPattern = /^(gastei|recebi)\\s*-\\s*([0-9.,]+)\\s*-\\s*([^-]+)(?:\\s*-\\s*(cr\u00e9dito))?$/i;\nconst commandPattern = /^#(saldo|ajuda|ultimos)$/i;\n\nconst payload = $input.first().json.body;\n\nif (payload.event !== \"messages.upsert\") {\n return [{ json: { skip: true, reason: \"Only accepts messages.upsert event\", number: payload.data.key.remoteJid } }];\n}\n\nconst key = payload.data?.key;\nconst message = payload.data?.message;\n\nif (key?.fromMe === true && key?.remoteJid === TARGET_GROUP_ID) {\n const messageText = message?.conversation || message?.extendedTextMessage?.text || \"\";\n const cleanText = messageText.trim().toLowerCase();\n \n const commandMatch = cleanText.match(commandPattern);\n if (commandMatch) {\n return [{\n json: {\n ...payload,\n triggerCommand: true,\n command: commandMatch[1].toLowerCase(),\n group_id: TARGET_GROUP_ID\n }\n }];\n }\n\n const transactionMatch = cleanText.match(transactionPattern);\n if (transactionMatch) {\n return [{\n json: {\n ...payload,\n triggerCommand: false,\n extractedData: {\n tipo: transactionMatch[1].toLowerCase(),\n valor: transactionMatch[2].trim(),\n descricao: transactionMatch[3].trim(),\n isCredito: !!transactionMatch[4]\n }\n }\n }];\n }\n \n return [{ json: { skip: true, reason: \"*Comando incorreto*\\n\\n*Use:*\\n`(gastei/recebi) - valor - descri\u00e7\u00e3o`\\n\\nOu envie `#ajuda`\", number: payload.data.key.remoteJid } }];\n}\n\nreturn output;"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
-448,
160
],
"id": "28cb926e-1787-41c7-a417-bf0a6ed64e46",
"name": "Code in JavaScript"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 3
},
"conditions": [
{
"id": "83e18dee-232c-4e76-bc3b-c795d1364093",
"leftValue": "={{ $json.skip }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "exists",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2.3,
"position": [
-240,
160
],
"id": "32b0bd81-d4a5-4171-a29b-4fb2944eb8b4",
"name": "If"
},
{
"parameters": {
"method": "POST",
"url": "http://evolution:8080/message/sendText/fabricio",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "apikey",
"value": "akd\u00e7sfjpoiwrhna\u00e7sdfkljasflkhjasdfl"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"number\":\"{{ $('Code in JavaScript').item.json.number }}\",\n \"options\":{\n \"delay\":1200,\n \"presence\":\"composing\"\n },\n \"text\": \"{{ JSON.stringify($json.reason).slice(1, -1) }}\"\n}",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
0,
0
],
"id": "b0ed6b8e-3752-46c6-bd4c-208f5921ab11",
"name": "HTTP Request"
},
{
"parameters": {
"method": "POST",
"url": "http://app:8000/api/transactions",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "API_TOKEN",
"value": "asdfasdfasdf"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n\"type\": \"{{ $json.extractedData.tipo }}\",\n\"amount\": \"{{ $json.extractedData.valor }}\",\n\"description\": \"{{ $json.extractedData.descricao }}\",\n\"is_credit\": {{ $json.extractedData.isCredito }},\n\"whatsapp_msg_id\": \"{{ $json.data.key.id }}\"\n}\n",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
240,
192
],
"id": "686995ac-b881-4dbd-8864-821f263334ec",
"name": "HTTP Request1"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 3
},
"conditions": [
{
"id": "a4daa3a6-5b00-4c2b-b9be-44c4f603d16b",
"leftValue": "={{ $json.triggerCommand }}",
"rightValue": false,
"operator": {
"type": "boolean",
"operation": "equals"
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2.3,
"position": [
-32,
368
],
"id": "7d762502-982b-40d7-adf5-2568600c40f0",
"name": "If1"
},
{
"parameters": {
"method": "POST",
"url": "http://app:8000/api/commands",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "API_TOKEN",
"value": "asdfasdfasdf"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n\"command\": \"{{ $json.command }}\"\n}\n",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
240,
480
],
"id": "653c455f-bde5-4463-9b73-2fe5309d74fe",
"name": "HTTP Request3"
},
{
"parameters": {
"method": "POST",
"url": "http://evolution:8080/message/sendText/fabricio",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "apikey",
"value": "akd\u00e7sfjpoiwrhna\u00e7sdfkljasflkhjasdfl"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"number\":\"{{ $('If1').item.json.data.key.remoteJid }}\",\n \"options\":{\n \"delay\":1200,\n \"presence\":\"composing\"\n },\n \"text\": \"{{ JSON.stringify($json.text).slice(1, -1) }}\"\n}",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
448,
480
],
"id": "1461418c-c61f-4128-acd9-fa7820fdb6c9",
"name": "HTTP Request4"
}
],
"connections": {
"Webhook": {
"main": [
[
{
"node": "Code in JavaScript",
"type": "main",
"index": 0
}
]
]
},
"Code in JavaScript": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"If": {
"main": [
[
{
"node": "HTTP Request",
"type": "main",
"index": 0
}
],
[
{
"node": "If1",
"type": "main",
"index": 0
}
]
]
},
"If1": {
"main": [
[
{
"node": "HTTP Request1",
"type": "main",
"index": 0
}
],
[
{
"node": "HTTP Request3",
"type": "main",
"index": 0
}
]
]
},
"HTTP Request3": {
"main": [
[
{
"node": "HTTP Request4",
"type": "main",
"index": 0
}
]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1",
"binaryMode": "separate",
"availableInMCP": false
},
"versionId": "e62089e3-f659-4691-a16a-007c45c8a77c",
"nodeGroups": [],
"id": "sZSjFEx5ZohoZA7p",
"tags": []
}
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About this workflow
Financial. Uses httpRequest. Webhook trigger; 8 nodes.
Source: https://github.com/FabricioLR/Financial/blob/master/FinancialN8NWorkflow.json — original creator credit. Request a take-down →
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