基于 Mistral OCR 的完整 RAG 从 PDF 开始
高级
这是一个AI, IT Ops领域的自动化工作流，包含 34 个节点。主要使用 Set, Code, Wait, GoogleDrive, HttpRequest 等节点，结合人工智能技术实现智能自动化。 使用Mistral OCR、Qdrant和Gemini AI构建PDF文档RAG系统
前置要求
- •Google Drive API 凭证
- •可能需要目标 API 的认证凭证
- •OpenAI API Key
- •Qdrant 服务器连接信息
- •Google Gemini API Key
使用的节点 (34)
工作流预览
可视化展示节点连接关系，支持缩放和平移
导出工作流
复制以下 JSON 配置到 n8n 导入，即可使用此工作流
{
"id": "IwtOfHq5pZQNDAF0",
"meta": {
"instanceId": "a4bfc93e975ca233ac45ed7c9227d84cf5a2329310525917adaf3312e10d5462",
"templateCredsSetupCompleted": true
},
"name": "基于 Mistral OCR 的完整 RAG 从 PDF 开始",
"tags": [],
"nodes": [
{
"id": "01a1b5b8-353f-4bfe-8bd0-c5dff1214c86",
"name": "Mistral 上传",
"type": "n8n-nodes-base.httpRequest",
"position": [
180,
520
],
"parameters": {
"url": "https://api.mistral.ai/v1/files",
"method": "POST",
"options": {},
"sendBody": true,
"contentType": "multipart-form-data",
"authentication": "predefinedCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "purpose",
"value": "ocr"
},
{
"name": "file",
"parameterType": "formBinaryData",
"inputDataFieldName": "data"
}
]
},
"nodeCredentialType": "mistralCloudApi"
},
"credentials": {
"mistralCloudApi": {
"id": "FydnNvrpqnG0B7ee",
"name": "Mistral Cloud account"
}
},
"typeVersion": 4.2
},
{
"id": "45267068-bdbc-45d3-bfe9-354cad73285b",
"name": "Mistral 签名 URL",
"type": "n8n-nodes-base.httpRequest",
"position": [
500,
520
],
"parameters": {
"url": "=https://api.mistral.ai/v1/files/{{ $json.id }}/url",
"options": {},
"sendQuery": true,
"sendHeaders": true,
"authentication": "predefinedCredentialType",
"queryParameters": {
"parameters": [
{
"name": "expiry",
"value": "24"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "Accept",
"value": "application/json"
}
]
},
"nodeCredentialType": "mistralCloudApi"
},
"credentials": {
"mistralCloudApi": {
"id": "FydnNvrpqnG0B7ee",
"name": "Mistral Cloud account"
}
},
"typeVersion": 4.2
},
{
"id": "61416fe4-d5d9-4417-9142-461dd6a45fa4",
"name": "Mistral 文档 OCR",
"type": "n8n-nodes-base.httpRequest",
"position": [
820,
520
],
"parameters": {
"url": "https://api.mistral.ai/v1/ocr",
"method": "POST",
"options": {},
"jsonBody": "={\n \"model\": \"mistral-ocr-latest\",\n \"document\": {\n \"type\": \"document_url\",\n \"document_url\": \"{{ $json.url }}\"\n },\n \"include_image_base64\": true\n}",
"sendBody": true,
"specifyBody": "json",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "mistralCloudApi"
},
"credentials": {
"mistralCloudApi": {
"id": "FydnNvrpqnG0B7ee",
"name": "Mistral Cloud account"
}
},
"typeVersion": 4.2
},
{
"id": "c45ea050-c65b-48b2-b817-d651c3a0de8a",
"name": "当点击\"测试工作流\"时",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-480,
-300
],
"parameters": {},
"typeVersion": 1
},
{
"id": "db931c73-916e-48ce-af17-cd5ab2e7c64d",
"name": "遍历项目",
"type": "n8n-nodes-base.splitInBatches",
"position": [
1540,
520
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "76daea49-34f2-4567-8547-4b3d89ce921c",
"name": "刷新集合",
"type": "n8n-nodes-base.httpRequest",
"position": [
-140,
-300
],
"parameters": {
"url": "http://QDRANTURL/collections/COLLECTION/points/delete",
"method": "POST",
"options": {},
"jsonBody": "{\n \"filter\": {}\n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
}
},
"credentials": {
"httpHeaderAuth": {
"id": "qhny6r5ql9wwotpn",
"name": "Qdrant API (Hetzner)"
}
},
"typeVersion": 4.2
},
{
"id": "ac7c469e-d0e8-4146-b323-f3948c3331fa",
"name": "OpenAI 嵌入",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
2320,
800
],
"parameters": {
"options": {
"stripNewLines": false
}
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1.1
},
{
"id": "67591961-ef29-4bef-9905-8be18d5e9814",
"name": "默认数据加载器",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
2460,
760
],
"parameters": {
"options": {}
},
"typeVersion": 1
},
{
"id": "54c38164-6492-42d6-8b44-e10bbfdcd807",
"name": "令牌分割器",
"type": "@n8n/n8n-nodes-langchain.textSplitterTokenSplitter",
"position": [
2560,
940
],
"parameters": {
"chunkSize": 400,
"chunkOverlap": 40
},
"typeVersion": 1
},
{
"id": "661137fc-7afa-49a8-900c-a8c7fd63f557",
"name": "当收到聊天消息时",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-480,
960
],
"webhookId": "97d60090-1717-4195-bf27-2e3c3105b7f8",
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "fe971655-b323-4ccf-a6c5-764d7cc3d8bc",
"name": "问答链",
"type": "@n8n/n8n-nodes-langchain.chainRetrievalQa",
"position": [
-160,
960
],
"parameters": {
"options": {}
},
"typeVersion": 1.5
},
{
"id": "8806cf11-83e8-4c75-ba96-71a62d1fb632",
"name": "Google Gemini 聊天模型",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
-220,
1160
],
"parameters": {
"options": {},
"modelName": "models/gemini-1.5-flash"
},
"credentials": {
"googlePalmApi": {
"id": "0p34rXqIqy8WuoPg",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 1
},
{
"id": "8012569d-5e29-4f36-89be-394ac4928194",
"name": "向量存储检索器",
"type": "@n8n/n8n-nodes-langchain.retrieverVectorStore",
"position": [
0,
1180
],
"parameters": {},
"typeVersion": 1
},
{
"id": "f33e13dd-2465-4971-bcbf-d2d9461f5453",
"name": "Qdrant 向量存储1",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"position": [
20,
1380
],
"parameters": {
"options": {},
"qdrantCollection": {
"__rl": true,
"mode": "list",
"value": "ocr_mistral_test",
"cachedResultName": "ocr_mistral_test"
}
},
"credentials": {
"qdrantApi": {
"id": "iyQ6MQiVaF3VMBmt",
"name": "QdrantApi account (Hetzner)"
}
},
"typeVersion": 1.1
},
{
"id": "f864b8c1-8b4f-4116-812a-843aea0347ac",
"name": "嵌入 OpenAI1",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
-100,
1520
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "48799279-d580-4c3f-ab39-e2da1bf1d577",
"name": "代码",
"type": "n8n-nodes-base.code",
"position": [
1140,
520
],
"parameters": {
"jsCode": "const data = $json.pages;\n\nreturn data.map(entry => ({\n json: {\n markdown: entry.markdown\n }\n}));"
},
"typeVersion": 2
},
{
"id": "5c68cd54-3841-46e0-9b2e-05a1188e92c0",
"name": "等待",
"type": "n8n-nodes-base.wait",
"position": [
2860,
540
],
"webhookId": "1000b40d-5dc5-4795-9dd2-8a23653c2b49",
"parameters": {},
"typeVersion": 1.1
},
{
"id": "0853153e-33a3-44a8-ab22-c296b7aab892",
"name": "Qdrant 向量存储",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"position": [
2380,
540
],
"parameters": {
"mode": "insert",
"options": {
"collectionConfig": ""
},
"qdrantCollection": {
"__rl": true,
"mode": "list",
"value": "ocr_mistral_test",
"cachedResultName": "ocr_mistral_test"
}
},
"credentials": {
"qdrantApi": {
"id": "iyQ6MQiVaF3VMBmt",
"name": "QdrantApi account (Hetzner)"
}
},
"typeVersion": 1.1
},
{
"id": "4123fa10-ec36-40cd-ad85-b8353479db28",
"name": "## 如何实施此 n8n 工作流",
"type": "n8n-nodes-base.splitInBatches",
"position": [
540,
-300
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "16fadeb2-5612-421e-8da3-37bed966d966",
"name": "执行工作流",
"type": "n8n-nodes-base.executeWorkflow",
"position": [
1160,
-280
],
"parameters": {
"mode": "each",
"options": {
"waitForSubWorkflow": true
},
"workflowId": {
"__rl": true,
"mode": "list",
"value": "AdVUaHTE9Jk1KO72",
"cachedResultName": "Mistral OCR_subworkflow"
},
"workflowInputs": {
"value": {},
"schema": [],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": true
}
},
"typeVersion": 1.2
},
{
"id": "0f61b1ab-45a3-4167-a4f1-baeca03109bd",
"name": "当被其他工作流执行时",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
-460,
520
],
"parameters": {
"inputSource": "passthrough"
},
"typeVersion": 1.1
},
{
"id": "034fc82c-b13a-4e72-ae86-97676d5b8867",
"name": "编辑字段1",
"type": "n8n-nodes-base.set",
"position": [
860,
-280
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "ca7c30f2-444d-4551-988d-0f513e5ee4b1",
"name": "file_id",
"type": "string",
"value": "={{ $json.id }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "0c5d144c-77de-4d3b-a30b-3674ea858f3e",
"name": "创建集合",
"type": "n8n-nodes-base.httpRequest",
"position": [
-480,
-760
],
"parameters": {
"url": "http://QDRANTURL/collections/COLLECTION",
"method": "PUT",
"options": {},
"jsonBody": "{\n \"vectors\": {\n \"size\": 1536,\n \"distance\": \"Cosine\" \n },\n \"shard_number\": 1, \n \"replication_factor\": 1, \n \"write_consistency_factor\": 1 \n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
}
},
"credentials": {
"httpHeaderAuth": {
"id": "qhny6r5ql9wwotpn",
"name": "Qdrant API (Hetzner)"
}
},
"typeVersion": 4.2
},
{
"id": "5dab4a20-0daa-43f2-8878-eae8720aa50f",
"name": "便签3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-280,
-820
],
"parameters": {
"color": 6,
"width": 880,
"height": 220,
"content": "# 步骤 1"
},
"typeVersion": 1
},
{
"id": "b78c160a-0e73-4fa0-9015-d8b2a249fd33",
"name": "便签说明4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-540,
-400
],
"parameters": {
"color": 4,
"width": 620,
"height": 520,
"content": "# 步骤 2"
},
"typeVersion": 1
},
{
"id": "8988f19e-259b-4e01-833a-f8ed2f89c7d6",
"name": "摘要链",
"type": "@n8n/n8n-nodes-langchain.chainSummarization",
"position": [
1820,
140
],
"parameters": {
"options": {
"summarizationMethodAndPrompts": {
"values": {
"prompt": "Write a concise summary of the following (in italiano):\n\n\n\"{text}\"\n\n\nCONCISE SUMMARY:",
"combineMapPrompt": "Write a concise summary of the following (in italiano):\n\n\n\"{text}\"\n\n\nCONCISE SUMMARY:"
}
}
}
},
"typeVersion": 2
},
{
"id": "b7581380-5431-42f1-b4de-279faf4bdf16",
"name": "Google Gemini聊天模型1",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
1840,
320
],
"parameters": {
"options": {},
"modelName": "models/gemini-2.0-flash-exp"
},
"credentials": {
"googlePalmApi": {
"id": "0p34rXqIqy8WuoPg",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 1
},
{
"id": "037896c0-7561-4ca1-9130-adc1175408b5",
"name": "设置页面",
"type": "n8n-nodes-base.set",
"position": [
2000,
540
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "189f4944-a692-423c-bc6d-76747e1d04df",
"name": "text",
"type": "string",
"value": "={{ $json.markdown }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "06444ac1-382a-41df-8ff7-a1a5fea9e6ec",
"name": "设置摘要",
"type": "n8n-nodes-base.set",
"position": [
2180,
140
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "189f4944-a692-423c-bc6d-76747e1d04df",
"name": "text",
"type": "string",
"value": "={{ $json.response.text }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "00bd51e2-a969-415a-9fca-f67bf9df96dc",
"name": "便签",
"type": "n8n-nodes-base.stickyNote",
"position": [
1760,
20
],
"parameters": {
"width": 600,
"height": 680,
"content": "## 步骤 3"
},
"typeVersion": 1
},
{
"id": "da71f8f9-bff9-48e1-b2e4-9fbbe7ac8924",
"name": "便签1",
"type": "n8n-nodes-base.stickyNote",
"position": [
320,
960
],
"parameters": {
"color": 2,
"width": 500,
"height": 120,
"content": "## 步骤 4"
},
"typeVersion": 1
},
{
"id": "b0c57120-6b07-4823-9341-c3f42ca313f5",
"name": "搜索 PDF",
"type": "n8n-nodes-base.googleDrive",
"position": [
200,
-300
],
"parameters": {
"filter": {
"folderId": {
"__rl": true,
"mode": "list",
"value": "1LWVo3yn_1bWQJsLskBIbWTGwlfObvtUK",
"cachedResultUrl": "https://drive.google.com/drive/folders/1LWVo3yn_1bWQJsLskBIbWTGwlfObvtUK",
"cachedResultName": "PDFs"
}
},
"options": {},
"resource": "fileFolder"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "HEy5EuZkgPZVEa9w",
"name": "Google Drive account (n3w.it)"
}
},
"typeVersion": 3
},
{
"id": "26990fbc-3315-42d5-948d-3b670e7d4f84",
"name": "获取 PDF",
"type": "n8n-nodes-base.googleDrive",
"position": [
-140,
520
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.file_id }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "HEy5EuZkgPZVEa9w",
"name": "Google Drive account (n3w.it)"
}
},
"typeVersion": 3
},
{
"id": "013e49fe-7ee2-4d24-b640-dda63fa034b3",
"name": "便签2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-540,
-1080
],
"parameters": {
"width": 1140,
"height": 140,
"content": "## 基于 Mistral OCR、Qdrant 和 Gemini AI 的完整 PDF 文档 RAG 系统"
},
"typeVersion": 1
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "45bfd9c5-ea80-49f9-bc3a-d2719a16b363",
"connections": {
"Code": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Wait": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Get PDF": {
"main": [
[
{
"node": "Mistral Upload",
"type": "main",
"index": 0
}
]
]
},
"Set page": {
"main": [
[
{
"node": "Qdrant Vector Store",
"type": "main",
"index": 0
}
]
]
},
"Search PDFs": {
"main": [
[
{
"node": "Loop Over Items1",
"type": "main",
"index": 0
}
]
]
},
"Edit Fields1": {
"main": [
[
{
"node": "Execute Workflow",
"type": "main",
"index": 0
}
]
]
},
"Mistral Upload": {
"main": [
[
{
"node": "Mistral Signed URL",
"type": "main",
"index": 0
}
]
]
},
"Token Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
},
"Loop Over Items": {
"main": [
[],
[
{
"node": "Set page",
"type": "main",
"index": 0
}
]
]
},
"Mistral DOC OCR": {
"main": [
[
{
"node": "Code",
"type": "main",
"index": 0
}
]
]
},
"Execute Workflow": {
"main": [
[
{
"node": "Loop Over Items1",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items1": {
"main": [
[],
[
{
"node": "Edit Fields1",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Qdrant Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Embeddings OpenAI1": {
"ai_embedding": [
[
{
"node": "Qdrant Vector Store1",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Mistral Signed URL": {
"main": [
[
{
"node": "Mistral DOC OCR",
"type": "main",
"index": 0
}
]
]
},
"Refresh collection": {
"main": [
[
{
"node": "Search PDFs",
"type": "main",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Qdrant Vector Store",
"type": "ai_document",
"index": 0
}
]
]
},
"Qdrant Vector Store": {
"main": [
[
{
"node": "Wait",
"type": "main",
"index": 0
}
]
]
},
"Summarization Chain": {
"main": [
[
{
"node": "Set summary",
"type": "main",
"index": 0
}
]
]
},
"Qdrant Vector Store1": {
"ai_vectorStore": [
[
{
"node": "Vector Store Retriever",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"Vector Store Retriever": {
"ai_retriever": [
[
{
"node": "Question and Answer Chain",
"type": "ai_retriever",
"index": 0
}
]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "Question and Answer Chain",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Google Gemini Chat Model1": {
"ai_languageModel": [
[
{
"node": "Summarization Chain",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "Question and Answer Chain",
"type": "main",
"index": 0
}
]
]
},
"When Executed by Another Workflow": {
"main": [
[
{
"node": "Get PDF",
"type": "main",
"index": 0
}
]
]
},
"When clicking ‘Test workflow’": {
"main": [
[
{
"node": "Refresh collection",
"type": "main",
"index": 0
}
]
]
}
}
}常见问题
如何使用这个工作流？
复制上方的 JSON 配置代码，在您的 n8n 实例中创建新工作流并选择「从 JSON 导入」，粘贴配置后根据需要修改凭证设置即可。
这个工作流适合什么场景？
高级 - 人工智能, IT 运维
需要付费吗？
本工作流完全免费，您可以直接导入使用。但请注意，工作流中使用的第三方服务（如 OpenAI API）可能需要您自行付费。
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内容创作
工作流信息
难度等级
高级
节点数量34
分类2
节点类型19
作者
Davide
@n3witaliaFull-stack Web Developer based in Italy specialising in Marketing & AI-powered automations. For business enquiries, send me an email at info@n3w.it or add me on Linkedin.com/in/davideboizza
外部链接
在 n8n.io 查看 →
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