718 lines
20 KiB
JSON
718 lines
20 KiB
JSON
{
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"name": "75 IT helpdesk + user limit (reference)",
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"nodes": [
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{
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"name": "Question webhook",
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"type": "n8n-nodes-base.webhook",
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"parameters": {
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"httpMethod": "POST",
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"path": "my-cost",
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"id": "3ccc3834-a583-51bd-a80f-b20124e32b64"
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},
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{
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"name": "Has question?",
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"type": "n8n-nodes-base.if",
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"typeVersion": 2.2,
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"parameters": {
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"conditions": {
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"options": {
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"caseSensitive": true,
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"leftValue": "",
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"typeValidation": "loose",
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"version": 2
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},
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"conditions": [
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{
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"id": "c1",
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"leftValue": "={{ $json.body.question }}",
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"operator": {
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{
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"name": "Reject empty",
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"parameters": {
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"respondWith": "json",
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"responseBody": "{ \"error\": \"question is required\" }",
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"id": "f3591be9-5676-5bb7-ab46-6984719af080"
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},
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{
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"name": "Get budget",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"parameters": {
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"url": "http://data-api:8800/budget",
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"options": {}
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"id": "4d62a650-0746-5e07-b811-2da4fdd28051"
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},
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{
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"name": "Recent requests",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"parameters": {
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"url": "=http://data-api:8800/usage/user/{{ encodeURIComponent($('Question webhook').first().json.body.user ?? '') }}?window=60",
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"options": {}
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"id": "4513f242-e767-5b7c-8cea-ebab898fb26e"
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},
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{
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"name": "Under user limit?",
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"type": "n8n-nodes-base.if",
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"typeVersion": 2.2,
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"parameters": {
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"conditions": {
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"options": {
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"caseSensitive": true,
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"leftValue": "",
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"typeValidation": "loose",
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"version": 2
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},
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"conditions": [
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{
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"id": "c1",
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"leftValue": "={{ $json.count < $('Get budget').first().json.user_limit_per_min }}",
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"rightValue": "",
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"operator": {
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"type": "boolean",
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"operation": "true",
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"id": "2f2deb36-19ae-51ac-95d8-c68d3952084b"
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},
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{
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"name": "Too many",
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"type": "n8n-nodes-base.respondToWebhook",
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"typeVersion": 1.1,
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"parameters": {
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"respondWith": "json",
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"responseBody": "={{ JSON.stringify({ route: '잠시 후', answer: '요청이 많아 잠시 뒤에 다시 물어봐 주세요.', retry_after: 60, llm_calls: 0, cost_usd: 0 }) }}",
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"options": {
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"responseCode": 429
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"position": [
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"id": "f55bf388-38db-5d84-b9de-af4379de138a"
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},
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{
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"name": "Get prices",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"parameters": {
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"url": "http://data-api:8800/prices",
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"options": {}
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},
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"position": [
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"id": "baa4796d-564b-5cc0-949a-d79738b12ba7"
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},
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{
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"name": "Prepare question",
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"type": "n8n-nodes-base.code",
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"typeVersion": 2,
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"parameters": {
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"jsCode": "const q = String($('Question webhook').first().json.body.question ?? '');\nconst max = Number($('Get budget').first().json.max_question_chars ?? 500);\nif (q.length <= max) return [{ json: { question: q, trimmed: false, question_chars: q.length } }];\nconst head = Math.floor(max * 0.4);\nconst question = q.slice(0, head) + ' … ' + q.slice(q.length - (max - head));\nreturn [{ json: { question, trimmed: true, question_chars: q.length } }];"
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},
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"position": [
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"id": "07d55a70-f59d-584f-bbae-3cfcf59973ac"
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},
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{
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"name": "Search FAQ",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"parameters": {
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"url": "http://data-api:8800/faq",
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"options": {},
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"sendQuery": true,
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"queryParameters": {
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"parameters": [
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{
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"name": "q",
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"value": "={{ $('Prepare question').first().json.question }}"
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}
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]
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}
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},
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"position": [
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"id": "e2005518-7a82-579a-acda-cc74b33968a9"
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},
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{
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"name": "Get ticket",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"parameters": {
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"url": "=http://data-api:8800/tickets/{{ (($('Question webhook').first().json.body.question.match(/T-?\\d{4}/i) || ['NONE'])[0]).toUpperCase().replace(/^T(\\d)/, 'T-$1') }}",
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"options": {
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"response": {
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"response": {
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"neverError": true
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}
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}
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},
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"sendQuery": true,
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"queryParameters": {
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"parameters": [
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{
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"name": "requester",
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"value": "={{ $('Question webhook').first().json.body.user ?? '' }}"
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}
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]
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}
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"id": "9d6c9b87-54bc-5433-bad3-6e33744e10ca"
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},
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{
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"name": "Within budget?",
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"type": "n8n-nodes-base.if",
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"typeVersion": 2.2,
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"parameters": {
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"conditions": {
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"options": {
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"caseSensitive": true,
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"leftValue": "",
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"typeValidation": "loose",
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"version": 2
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},
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"conditions": [
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{
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"id": "c1",
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"leftValue": "={{ !$('Get budget').first().json.over }}",
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"rightValue": "",
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"operator": {
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"type": "boolean",
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"operation": "true",
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"singleValue": true
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}
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}
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],
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"combinator": "and"
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},
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"options": {}
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"position": [
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"id": "26f8a52b-1937-5bb0-ab2d-2915cd25b97c"
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},
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{
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"name": "Over budget",
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"type": "n8n-nodes-base.code",
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"typeVersion": 2,
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"parameters": {
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"jsCode": "const results = $('Search FAQ').first().json.results ?? [];\nconst t = $('Get ticket').first().json;\nlet answer = '오늘 자동 답변 한도를 넘어 담당자에게 연결합니다.';\nif (t.status) answer = `${t.ticket_id} 접수 건은 현재 '${t.status}' 상태입니다. ${t.note ?? ''} (오늘 자동 답변 한도를 넘어 원문으로 안내합니다.)`;\nelse if (results.length) answer = `${results[0].answer} (오늘 자동 답변 한도를 넘어 FAQ 원문으로 안내합니다.)`;\nreturn [{ json: { route: '한도 초과', answer, sources: results.map((r) => r.id), llm_calls: 0,\n usage: { prompt_tokens: 0, completion_tokens: 0, by_step: {} }, cost_usd: 0 } }];"
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"id": "094e42df-cd03-5518-9e78-2f7406b8062b"
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},
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{
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"name": "Send over budget",
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"type": "n8n-nodes-base.respondToWebhook",
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"typeVersion": 1.1,
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"parameters": {
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"respondWith": "json",
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"responseBody": "={{ $json }}",
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"id": "36894aff-0586-586d-8b30-a9db7f8fd1a4"
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},
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{
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"name": "Rule classify",
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"type": "n8n-nodes-base.code",
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"typeVersion": 2,
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"parameters": {
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"jsCode": "const q = String($('Prepare question').first().json.question ?? '');\nconst results = $('Search FAQ').first().json.results ?? [];\nconst category = /T-?\\d{4}/i.test(q) ? 'ticket' : (results.length ? 'faq' : 'unknown');\nreturn [{ json: { category } }];"
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"id": "ff9310ae-451e-5825-bb13-67013e490b85"
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{
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"name": "Known?",
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"type": "n8n-nodes-base.if",
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"typeVersion": 2.2,
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"parameters": {
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"conditions": {
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"options": {
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"caseSensitive": true,
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"leftValue": "",
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"typeValidation": "loose",
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"version": 2
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},
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"conditions": [
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{
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"id": "c1",
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"leftValue": "={{ $json.category }}",
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"rightValue": "unknown",
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"operation": "notEquals"
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"id": "14570236-0f99-5931-8173-d03f18288d68"
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},
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{
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"name": "Classify",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"parameters": {
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"method": "POST",
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"url": "https://api.openai.com/v1/chat/completions",
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"authentication": "predefinedCredentialType",
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"nodeCredentialType": "openAiApi",
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"sendBody": true,
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"specifyBody": "json",
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"jsonBody": "={{ JSON.stringify({ model: 'gpt-5.4-nano', temperature: 0, messages: [{ role: 'system', content: \"You sort one company IT help-desk question. Categories: faq (how to fix or use something), ticket (asks about the status of a ticket like T-1002), other. Return only JSON, no code fence: {\\\"category\\\": \\\"faq\\\"}\" }, { role: 'user', content: $('Prepare question').first().json.question }] }) }}",
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"options": {
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"timeout": 60000
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}
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],
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"credentials": {
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"openAiApi": {
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"id": "openAiCourse0001",
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"name": "OpenAI (.env)"
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}
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"id": "07e553a6-f8eb-5513-a566-db99f5b11d29"
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},
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{
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"name": "Parse category",
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"type": "n8n-nodes-base.code",
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"typeVersion": 2,
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"parameters": {
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"jsCode": "const raw = String($json.choices?.[0]?.message?.content ?? '').replace(/^```(json)?\\s*|```$/g, '');\nlet category = 'other';\ntry { category = JSON.parse(raw).category ?? 'other'; } catch (error) { category = 'other'; }\nreturn [{ json: { category } }];"
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"id": "1a1ea3bc-20b6-5218-b12e-9bafa39f3d8c"
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},
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{
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"name": "Answer",
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"parameters": {
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"method": "POST",
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"url": "https://api.openai.com/v1/chat/completions",
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"authentication": "predefinedCredentialType",
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"nodeCredentialType": "openAiApi",
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"sendBody": true,
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"specifyBody": "json",
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"jsonBody": "={{ JSON.stringify({ model: 'gpt-4.1-mini', temperature: 0, max_completion_tokens: 200, messages: [{ role: 'system', content: \"You are the company IT help desk. Answer in Korean in at most 3 sentences, using only the FAQ entries and the ticket record given. Never invent steps, dates or names. For a ticket, say its status and note. If the data does not answer the question, say \\\"찾지 못했습니다\\\" and that a staff member will help. Use 합니다체.\" }, { role: 'user', content: '질문: ' + $('Prepare question').first().json.question + '\\nFAQ: ' + JSON.stringify(($('Search FAQ').first().json.results ?? []).map((f) => ({ id: f.id, title: f.title, answer: f.answer }))) + '\\n접수 건: ' + JSON.stringify((({ ticket_id, title, status, note, error }) => ({ ticket_id, title, status, note, error }))($('Get ticket').first().json)) }] }) }}",
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"options": {
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"timeout": 60000
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},
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"credentials": {
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"id": "openAiCourse0001",
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"name": "OpenAI (.env)"
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},
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"id": "fd329729-e718-56ff-805c-aa298d26c0b2"
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},
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{
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"name": "Build result",
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"type": "n8n-nodes-base.code",
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"typeVersion": 2,
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"parameters": {
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"jsCode": "const ran = (n) => { try { return $(n).isExecuted; } catch (e) { return false; } };\nconst steps = [{\"step\": \"classify\", \"node\": \"Classify\", \"model\": \"gpt-5.4-nano\"}, {\"step\": \"answer\", \"node\": \"Answer\", \"model\": \"gpt-4.1-mini\"}];\nconst prices = $('Get prices').first().json.models;\nconst by_step = {};\nlet prompt_tokens = 0, completion_tokens = 0, llm_calls = 0, cost_usd = 0;\nfor (const s of steps) {\n if (!ran(s.node)) continue;\n const u = $(s.node).first().json.usage ?? {};\n const row = { model: s.model, prompt_tokens: u.prompt_tokens ?? 0, completion_tokens: u.completion_tokens ?? 0 };\n const p = prices[s.model] ?? { input: 0, output: 0 };\n row.cost_usd = Math.round((row.prompt_tokens * p.input + row.completion_tokens * p.output) / 1e6 * 1e8) / 1e8;\n by_step[s.step] = row;\n prompt_tokens += row.prompt_tokens; completion_tokens += row.completion_tokens; cost_usd += row.cost_usd; llm_calls += 1;\n}\nconst results = $('Search FAQ').first().json.results ?? [];\nconst answer = String($('Answer').first().json.choices[0].message.content ?? '').trim();\nconst result = { route: '자동 답변', answer, sources: results.map((r) => r.id), llm_calls,\n usage: { prompt_tokens, completion_tokens, by_step }, cost_usd: Math.round(cost_usd * 1e8) / 1e8 };\nconst prepared = $('Prepare question').first().json;\nresult.trimmed = prepared.trimmed;\nresult.question_chars = prepared.question_chars;\nreturn [{ json: result }];"
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},
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},
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{
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"typeVersion": 4.2,
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"parameters": {
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"method": "POST",
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"url": "http://data-api:8800/usage",
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"sendBody": true,
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"specifyBody": "json",
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"jsonBody": "={{ JSON.stringify({ items: Object.entries($json.usage.by_step).map(([step, row]) => ({ request_id: $execution.id, user: $('Question webhook').first().json.body.user ?? '', step, model: row.model, prompt_tokens: row.prompt_tokens, completion_tokens: row.completion_tokens, cost_usd: row.cost_usd, route: $json.route })) }) }}",
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"options": {
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"response": {
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"response": {
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"neverError": true
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}
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"timeout": 3000
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"onError": "continueRegularOutput",
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"id": "a46b3503-5039-5cb6-890e-69149fe23f55"
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},
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{
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"name": "Result again",
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"type": "n8n-nodes-base.code",
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"typeVersion": 2,
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"parameters": {
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"jsCode": "return [{ json: { ...$('Build result').first().json, recorded: Number($json.stored ?? 0) > 0 } }];"
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"id": "1b8127ae-a43b-5096-8f94-c96892a085db"
|
|
},
|
|
{
|
|
"name": "Send result",
|
|
"type": "n8n-nodes-base.respondToWebhook",
|
|
"typeVersion": 1.1,
|
|
"parameters": {
|
|
"respondWith": "json",
|
|
"responseBody": "={{ $json }}",
|
|
"options": {}
|
|
},
|
|
"position": [
|
|
4180,
|
|
300
|
|
],
|
|
"id": "6cbcbfe3-9306-5287-b0c6-79f3fe0f9a5e"
|
|
}
|
|
],
|
|
"connections": {
|
|
"Question webhook": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Has question?",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Has question?": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Get budget",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
],
|
|
[
|
|
{
|
|
"node": "Reject empty",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Get budget": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Recent requests",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Recent requests": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Under user limit?",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Under user limit?": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Get prices",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
],
|
|
[
|
|
{
|
|
"node": "Too many",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Get prices": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Prepare question",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Prepare question": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Search FAQ",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Search FAQ": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Get ticket",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Get ticket": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Within budget?",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Within budget?": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Rule classify",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
],
|
|
[
|
|
{
|
|
"node": "Over budget",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Rule classify": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Known?",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Known?": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Answer",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
],
|
|
[
|
|
{
|
|
"node": "Classify",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Answer": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Build result",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Build result": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Record usage",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Record usage": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Result again",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Result again": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Send result",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Over budget": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Send over budget",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Classify": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Parse category",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
},
|
|
"Parse category": {
|
|
"main": [
|
|
[
|
|
{
|
|
"node": "Answer",
|
|
"type": "main",
|
|
"index": 0
|
|
}
|
|
]
|
|
]
|
|
}
|
|
},
|
|
"settings": {
|
|
"executionOrder": "v1"
|
|
}
|
|
}
|