This workflow follows the Documentdefaultdataloader → Textsplitterrecursivecharactertextsplitter recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"name": "File upload",
"nodes": [
{
"parameters": {
"triggerOn": "folder",
"path": "mudeli_input",
"events": [
"add"
],
"options": {
"awaitWriteFinish": true,
"ignoreInitial": true
}
},
"type": "n8n-nodes-base.localFileTrigger",
"typeVersion": 1,
"position": [
-140,
340
],
"id": "8d716424-f142-4522-9280-a3c869837a78",
"name": "Local File Trigger"
},
{
"parameters": {
"mode": "insert",
"tableName": "pdf_vectors",
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.vectorStorePGVector",
"typeVersion": 1,
"position": [
460,
580
],
"id": "88afb19f-c434-4c45-8b55-8a3a6248bb7c",
"name": "Postgres PGVector Store",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"options": {
"batchSize": 32
}
},
"type": "@n8n/n8n-nodes-langchain.embeddingsMistralCloud",
"typeVersion": 1,
"position": [
420,
780
],
"id": "cfae9d05-03df-4bbb-99d1-8e82a99770ae",
"name": "Embeddings Mistral Cloud2",
"credentials": {
"mistralCloudApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"fileSelector": "={{ $json.path }}",
"options": {
"fileExtension": "csv",
"mimeType": "text/csv",
"dataPropertyName": "data"
}
},
"type": "n8n-nodes-base.readWriteFile",
"typeVersion": 1,
"position": [
40,
340
],
"id": "c88c32bf-e7ec-40dd-a502-2890f3167960",
"name": "Read/Write Files from Disk1",
"alwaysOutputData": false
},
{
"parameters": {
"options": {}
},
"type": "n8n-nodes-base.extractFromFile",
"typeVersion": 1,
"position": [
240,
340
],
"id": "5b2477ca-b1bb-41f0-ba96-511ac5f233cc",
"name": "Extract from File"
},
{
"parameters": {
"schema": {
"__rl": true,
"mode": "list",
"value": "public"
},
"table": {
"__rl": true,
"value": "kegg_annotations",
"mode": "list",
"cachedResultName": "kegg_annotations"
},
"columns": {
"mappingMode": "defineBelow",
"value": {
"id": "={{ $json['Unnamed: 0'] }}",
"length_bp": "={{ $json.length_bp }}",
"quantification_keggcharter": "={{ $json['Quantification (KEGGCharter)'] }}",
"locus_tag": "={{ $json.locus_tag }}",
"ftype": "={{ $json.ftype }}",
"gene": "={{ $json.gene }}",
"ec_number": "={{ $json.EC_number }}",
"cog": "={{ $json.COG }}",
"product": "={{ $json.product }}",
"ko_ec_column": "={{ $json['KO (ec-column)'] }}",
"ec_ec_column": "={{ $json['EC (ec-column)'] }}",
"ko_cog_column": "={{ $json['KO (cog-column)'] }}",
"ko_keggcharter": "={{ $json['KO (KEGGCharter)'] }}",
"ec_number_keggcharter": "={{ $json['EC number (KEGGCharter)'] }}",
"Strain number": "={{ $('Local File Trigger').item.json.path.split('/').pop().replace('.csv', '') }}",
"taxon": "={{ $json.taxonomy }}"
},
"matchingColumns": [
"id"
],
"schema": [
{
"id": "id",
"displayName": "id",
"required": false,
"defaultMatch": true,
"display": true,
"type": "number",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "locus_tag",
"displayName": "locus_tag",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ftype",
"displayName": "ftype",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "length_bp",
"displayName": "length_bp",
"required": false,
"defaultMatch": false,
"display": true,
"type": "number",
"canBeUsedToMatch": true
},
{
"id": "gene",
"displayName": "gene",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ec_number",
"displayName": "ec_number",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "cog",
"displayName": "cog",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "product",
"displayName": "product",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "quantification_keggcharter",
"displayName": "quantification_keggcharter",
"required": false,
"defaultMatch": false,
"display": true,
"type": "number",
"canBeUsedToMatch": true
},
{
"id": "taxon",
"displayName": "taxon",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "ko_ec_column",
"displayName": "ko_ec_column",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ec_ec_column",
"displayName": "ec_ec_column",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ko_cog_column",
"displayName": "ko_cog_column",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ko_keggcharter",
"displayName": "ko_keggcharter",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ec_number_keggcharter",
"displayName": "ec_number_keggcharter",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Strain number",
"displayName": "Strain number",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.5,
"position": [
440,
340
],
"id": "99fd699d-f5af-4910-8070-216dacdc84f6",
"name": "Postgres regular database",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"triggerOn": "folder",
"path": "pdfs",
"events": [
"add"
],
"options": {
"awaitWriteFinish": true,
"ignoreInitial": true
}
},
"type": "n8n-nodes-base.localFileTrigger",
"typeVersion": 1,
"position": [
-140,
580
],
"id": "39bba65b-d306-4b23-b6a7-a2eda7b71089",
"name": "Local File Trigger1"
},
{
"parameters": {
"fileSelector": "={{ $json.path }}",
"options": {
"fileExtension": "pdf",
"mimeType": "application/pdf",
"dataPropertyName": "pdf_data"
}
},
"type": "n8n-nodes-base.readWriteFile",
"typeVersion": 1,
"position": [
40,
580
],
"id": "3727a050-37ac-454c-849d-d5d5442a653f",
"name": "Read/Write Files from Disk2",
"alwaysOutputData": false
},
{
"parameters": {
"chunkSize": 3000,
"chunkOverlap": 200,
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"typeVersion": 1,
"position": [
600,
940
],
"id": "08d9eca7-4a50-4128-81d6-bc8e864bf55e",
"name": "Recursive Character Text Splitter"
},
{
"parameters": {
"operation": "pdf",
"binaryPropertyName": "pdf_data",
"options": {}
},
"type": "n8n-nodes-base.extractFromFile",
"typeVersion": 1,
"position": [
240,
580
],
"id": "0d96579d-3ecb-4a34-8f19-50d773da1097",
"name": "Extract from File1"
},
{
"parameters": {
"jsonMode": "expressionData",
"jsonData": "={{ $('Extract from File1').item.json.text }}",
"options": {
"metadata": {
"metadataValues": [
{
"name": "file-name",
"value": "={{ $('Read/Write Files from Disk2').item.json.fileName }}"
}
]
}
}
},
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"typeVersion": 1,
"position": [
560,
780
],
"id": "e3ce3e24-48df-4fa7-9952-207253dd8934",
"name": "Default Data Loader"
}
],
"connections": {
"Local File Trigger": {
"main": [
[
{
"node": "Read/Write Files from Disk1",
"type": "main",
"index": 0
}
]
]
},
"Embeddings Mistral Cloud2": {
"ai_embedding": [
[
{
"node": "Postgres PGVector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Extract from File": {
"main": [
[
{
"node": "Postgres regular database",
"type": "main",
"index": 0
}
]
]
},
"Local File Trigger1": {
"main": [
[
{
"node": "Read/Write Files from Disk2",
"type": "main",
"index": 0
}
]
]
},
"Read/Write Files from Disk1": {
"main": [
[
{
"node": "Extract from File",
"type": "main",
"index": 0
}
]
]
},
"Read/Write Files from Disk2": {
"main": [
[
{
"node": "Extract from File1",
"type": "main",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
},
"Extract from File1": {
"main": [
[
{
"node": "Postgres PGVector Store",
"type": "main",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Postgres PGVector Store",
"type": "ai_document",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "df48b059-2365-42c8-86a0-7f28a058b937",
"id": "X74CslmFOweryfUc",
"tags": []
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
mistralCloudApipostgres
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
File upload. Uses localFileTrigger, vectorStorePGVector, embeddingsMistralCloud, readWriteFile. Event-driven trigger; 11 nodes.
Source: https://github.com/Karlerikkanal/GenomeAnalysisTool/blob/af76a30a7848e2f08b257e4f559d31641c3d9d86/workflows/File_upload.json — original creator credit. Request a take-down →
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