Process Multiple Files with Forms: A Tutorial on Binary Data and Loops — Workflow n8n

Faible complexité⚡ Déclencheur5 nœuds🏷️ File Management👁 185 vuespar Wyeth

Aperçu

Let a user load multiple files with a Form node, and process the binary data. A very important workflow for many tools.

This is a learning example of several core concepts that are hard to grasp in n8n: $binary data Loop and $runIndex Split Out

The Save File deomonstrates how to access the binary data correctly, but could be swapped to POST the files to an AI, for example.

Nœuds utilisés

Loop Over ItemsSave Each FileSplit Out FilesForm - Load Multiple FilesSticky Note4Continue Once

Aperçu du workflow

Learning n8n

Loops, Multiple Binary Files, {{$runIndex}}

Loops are rarely needed in n8n, but here is one example

Use a Form to load multiple files.

This is a case where n8n will NOT fire an event per fil

However, we want to process the fi

Split Out will fix this, firing one event for

*We must make sure to pass binary data along.*

Now we can use a Loop to handle each file, on

With this setup, the special {{$runIndex}} can be used

We use it to get the correct binary file, which has bee

We typically only want to proceed downstream

Loop Over Items

Save Each File

Split Out Files

⚡

Form - Load Multiple Files

Continue Once

5 nodes5 edges

Comment ça fonctionne

1
Déclencheur
Le workflow démarre avec un déclencheur déclencheur.
2
Traitement
Les données transitent par 5 nœuds, connecting formtrigger, readwritefile, splitinbatches.
3
Sortie
Le workflow termine son automatisation et livre le résultat à la destination configurée.

Détails des nœuds (5)

Loop Over Items

splitInBatches

Save Each File

readWriteFile

Split Out Files

splitOut

Form - Load Multiple Files

formTrigger

Sticky Note4

stickyNote

Continue Once

noOp

Comment importer ce workflow

1Cliquez sur le bouton Télécharger JSON à droite pour enregistrer le fichier du workflow.
2Ouvrez votre instance n8n. Accédez à Workflows → Nouveau → Importer depuis un fichier.
3Sélectionnez le fichier process-multiple-files-with-forms-a-tutorial-on-binary-data-and-loops téléchargé et cliquez sur Importer.
4Configurez les identifiants pour chaque nœud de service (clés API, OAuth, etc.).
5Cliquez sur Tester le workflow pour vérifier que tout fonctionne, puis activez-le.

Ou collez directement dans n8n → Importer depuis JSON :

{ "name": "Process Multiple Files with Forms: A Tutorial on Binary Data and Loops", "nodes": [...], ...}

Intégrations

formtriggerreadwritefilesplitinbatchessplitout

Obtenir ce workflow

Téléchargez et importez en un clic

Télécharger JSON Voir sur n8n.io

Nœuds5

Complexitélow

Déclencheurtrigger

CatégorieFile Management

Créé par

Wyeth

@wyeth

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