The workflow JSON
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{
"name": "Alerta de Prazos Trello WhatsApp",
"nodes": [
{
"parameters": {
"rule": {
"interval": [
{
"field": "cronExpression",
"expression": "0 8 * * 1-5"
}
]
}
},
"id": "6e207f29-407f-4c7e-907d-70df7e728cb1",
"name": "Dias \u00fateis \u00e0s 08h",
"type": "n8n-nodes-base.scheduleTrigger",
"typeVersion": 1.1,
"position": [
-656,
32
]
},
{
"parameters": {
"url": "=https://api.trello.com/1/boards/{{ $env.TRELLO_BOARD_ID }}/cards",
"sendQuery": true,
"queryParameters": {
"parameters": [
{
"name": "key",
"value": "={{ $env.TRELLO_API_KEY }}"
},
{
"name": "token",
"value": "={{ $env.TRELLO_TOKEN }}"
},
{
"name": "fields",
"value": "name,due,url,idMembers,dueComplete"
}
]
},
"options": {}
},
"id": "efbd20d6-18c6-40a1-bef7-f2dffa7d7d29",
"name": "Buscar cart\u00f5es do Trello",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
-448,
32
]
},
{
"parameters": {
"jsCode": "function env(name, fallback = \"\") {\n const value = process.env[name];\n return value === undefined || value === null || value === \"\" ? fallback : value;\n}\n\nfunction parseJsonEnv(name, fallback) {\n const raw = env(name, \"\");\n\n if (!raw) return fallback;\n\n try {\n return JSON.parse(raw);\n } catch (error) {\n throw new Error(`Variavel de ambiente ${name} contem JSON invalido: ${error.message}`);\n }\n}\n\nconst CONFIG = {\n grupoDestino: env(\"WHATSAPP_GROUP_JID\", \"120000000000000000@g.us\"),\n diasAntecedencia: Number(env(\"DAYS_BEFORE_DUE\", \"2\")),\n timezone: env(\"TIMEZONE\", \"America/Sao_Paulo\"),\n fallbackContact: {\n numero: env(\"FALLBACK_PHONE_NUMBER\", \"5500000000000\"),\n nome: env(\"FALLBACK_CONTACT_NAME\", \"Equipe\")\n },\n memberContacts: parseJsonEnv(\"TRELLO_MEMBER_CONTACTS_JSON\", {\n \"trello_member_id_here\": {\n numero: \"5500000000000\",\n nome: \"Responsavel\"\n }\n })\n};\n\nfunction normalizarNumero(numero) {\n return String(numero || \"\")\n .replace(/\\D/g, \"\")\n .replace(/^55(\\d{2})9(\\d{8})$/, \"55$1$2\");\n}\n\nfunction montarContato(contato) {\n const numero = normalizarNumero(contato.numero);\n\n return {\n numero,\n nome: contato.nome || \"Equipe\",\n jid: `${numero}@s.whatsapp.net`,\n textoMencao: `@${numero}`\n };\n}\n\nfunction formatarData(data) {\n return data.toLocaleDateString(\"pt-BR\", {\n timeZone: CONFIG.timezone,\n day: \"2-digit\",\n month: \"2-digit\",\n year: \"numeric\"\n });\n}\n\nconst agora = new Date();\nconst diasAntecedencia = Number.isFinite(CONFIG.diasAntecedencia)\n ? CONFIG.diasAntecedencia\n : 2;\nconst limite = new Date(agora.getTime() + diasAntecedencia * 24 * 60 * 60 * 1000);\nconst resultado = [];\n\nfor (const item of $input.all()) {\n const card = item.json;\n\n if (!card.due || card.dueComplete === true) continue;\n\n const vencimento = new Date(card.due);\n if (Number.isNaN(vencimento.getTime())) continue;\n\n const vencido = vencimento < agora;\n const venceEmBreve = vencimento >= agora && vencimento <= limite;\n\n if (!vencido && !venceEmBreve) continue;\n\n const membrosIds = Array.isArray(card.idMembers) ? card.idMembers : [];\n\n let contatosDoCard = membrosIds\n .map((membroId) => CONFIG.memberContacts[membroId])\n .filter(Boolean)\n .map(montarContato);\n\n if (contatosDoCard.length === 0) {\n contatosDoCard = [montarContato(CONFIG.fallbackContact)];\n }\n\n const nomeTarefa = card.name || \"Sem titulo\";\n const dataFormatada = formatarData(vencimento);\n\n const mencoesTexto = contatosDoCard\n .map((contato) => contato.textoMencao)\n .join(\" \");\n\n const mencoesJid = contatosDoCard.map((contato) => contato.jid);\n const nomes = contatosDoCard.map((contato) => contato.nome).join(\", \");\n\n const emoji = vencido ? \"\ud83d\udd34\" : \"\ud83d\udfe1\";\n\n const mensagem = vencido\n ? `${emoji} Aten\u00e7\u00e3o ${mencoesTexto}, a tarefa *${nomeTarefa}* est\u00e1 *VENCIDA* desde ${dataFormatada}!`\n : `${emoji} Aten\u00e7\u00e3o ${mencoesTexto}, a tarefa *${nomeTarefa}* est\u00e1 *VENCENDO* em ${dataFormatada}!`;\n\n resultado.push({\n json: {\n name: nomeTarefa,\n due: card.due,\n due_formatado: dataFormatada,\n url: card.url,\n whatsapp_nomes: nomes,\n whatsapp_mencoes: mencoesJid,\n mensagem_final: mensagem,\n payload_evolution: {\n number: CONFIG.grupoDestino,\n text: mensagem,\n mentionsEveryOne: false,\n mentioned: mencoesJid\n }\n }\n });\n}\n\nif (resultado.length === 0) {\n return [{ json: { _skip: true, mensagem_final: \"\" } }];\n}\n\nreturn resultado;"
},
"id": "af824171-52d9-485b-86e1-70e0fef99f6e",
"name": "Filtrar e formatar cart\u00f5es",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
-240,
32
]
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 3
},
"conditions": [
{
"id": "b4b4d4d1-39a7-4b9c-9c00-c99afc5821de",
"leftValue": "={{ $json.mensagem_final }}",
"rightValue": "",
"operator": {
"type": "string",
"operation": "notEmpty",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"id": "0d74c86e-7f4f-4906-bcef-77de8f9978c9",
"name": "Tem mensagem para enviar?",
"type": "n8n-nodes-base.if",
"typeVersion": 2.3,
"position": [
-32,
32
]
},
{
"parameters": {
"method": "POST",
"url": "={{ $env.EVOLUTION_API_BASE_URL }}/message/sendText/{{ $env.EVOLUTION_INSTANCE_NAME }}",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "apikey",
"value": "={{ $env.EVOLUTION_API_KEY }}"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={{ $json.payload_evolution }}",
"options": {}
},
"id": "a66cdd5d-873e-40ad-8a44-092e16b3abaf",
"name": "Enviar WhatsApp",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
192,
16
]
},
{
"parameters": {
"content": "Dispara o workflow automaticamente em dias \u00fateis \u00e0s 08h.",
"height": 272,
"width": 208
},
"id": "2d8c030a-aff2-4fdf-803f-1aaaf963e2b2",
"name": "Nota - Agendamento",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-704,
-80
]
},
{
"parameters": {
"content": "Busca cart\u00f5es do board informado em TRELLO_BOARD_ID.",
"height": 272,
"width": 208,
"color": 4
},
"id": "9345faa2-48b7-4345-abe8-770741e7e269",
"name": "Nota - Trello",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-496,
-80
]
},
{
"parameters": {
"content": "Filtra cart\u00f5es vencidos ou pr\u00f3ximos do vencimento, identifica respons\u00e1veis e monta a mensagem.",
"height": 272,
"width": 208,
"color": 6
},
"id": "0f8519a2-f538-4115-af08-34ea965ee974",
"name": "Nota - Processamento",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-288,
-80
]
},
{
"parameters": {
"content": "Envia a mensagem no WhatsApp usando Evolution API e vari\u00e1veis de ambiente.",
"height": 272,
"width": 212
},
"id": "7391217b-1d4c-41e8-9660-d81ae3ebc254",
"name": "Nota - Envio",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
128,
-80
]
}
],
"connections": {
"Dias \u00fateis \u00e0s 08h": {
"main": [
[
{
"node": "Buscar cart\u00f5es do Trello",
"type": "main",
"index": 0
}
]
]
},
"Buscar cart\u00f5es do Trello": {
"main": [
[
{
"node": "Filtrar e formatar cart\u00f5es",
"type": "main",
"index": 0
}
]
]
},
"Filtrar e formatar cart\u00f5es": {
"main": [
[
{
"node": "Tem mensagem para enviar?",
"type": "main",
"index": 0
}
]
]
},
"Tem mensagem para enviar?": {
"main": [
[
{
"node": "Enviar WhatsApp",
"type": "main",
"index": 0
}
]
]
},
"Enviar WhatsApp": {
"main": [
[]
]
}
},
"meta": {
"templateCredsSetupCompleted": false
}
}
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About this workflow
Alerta de Prazos Trello WhatsApp. Uses httpRequest. Scheduled trigger; 9 nodes.
Source: https://github.com/daniel13lima/alerta-prazos-trello-whatsapp-n8n/blob/main/workflows/alerta-prazos-trello-whatsapp.template.json — original creator credit. Request a take-down →
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