Générer des fonds d'écran graphiques avec Midjourney, GPT-4o-mini et Canvas API

Intermédiaire

Ceci est unDesign, AI, Marketingworkflow d'automatisation du domainecontenant 14 nœuds.Utilise principalement des nœuds comme If, Set, Code, Wait, Switch, combinant la technologie d'intelligence artificielle pour une automatisation intelligente. Générer des fonds d'écran graphiques avec Midjourney, GPT-4o-mini et Canvas API

Prérequis
  • Peut nécessiter les informations d'identification d'authentification de l'API cible
Aperçu du workflow
Visualisation des connexions entre les nœuds, avec support du zoom et du déplacement
Exporter le workflow
Copiez la configuration JSON suivante dans n8n pour importer et utiliser ce workflow
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  "meta": {
    "instanceId": "1e003a7ea4715b6b35e9947791386a7d07edf3b5bf8d4c9b7ee4fdcbec0447d7"
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  "name": "Generate Graphic Wallpaper with Midjourney, GPT-4o-mini and Canvas APIs",
  "tags": [],
  "nodes": [
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      "parameters": {
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        "content": "## Generate Graphic Wallpaper with Midjourney, GPT-4o-mini and Canvas APIs\nWe design this workflow with PiAPI APIs and Canvas API with the purpose to  produce a visually compelling image with resonant copy to spark emotional connection. 🙌 \nWish you make a fantastic generation with our workflow! "
      },
      "typeVersion": 1
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    {
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      "name": "Générateur Midjourney",
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      "position": [
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        "url": "https://api.piapi.ai/api/v1/task",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"model\": \"midjourney\",\n  \"task_type\": \"imagine\",\n  \"input\": {\n    \"prompt\": \"{{ $json.prompt }}\",\n    \"aspect_ratio\": \"1:1\",\n    \"process_mode\": \"turbo\",\n    \"skip_prompt_check\": false\n  }\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "headerParameters": {
          "parameters": [
            {
              "name": "x-api-key",
              "value": "={{ $('Basic Params').item.json['x-api-key'] }}"
            }
          ]
        }
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      "typeVersion": 4.2
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      "name": "Lors du clic sur Tester le workflow",
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      "parameters": {},
      "typeVersion": 1
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      "name": "Obtenir l'invite",
      "type": "n8n-nodes-base.code",
      "position": [
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      "parameters": {
        "jsCode": "const image_prompt=$('Basic Params').first().json.image_prompt;\nconst show_prompt =$input.first().json.choices[0].message.content;\n\nconst prompt = image_prompt.replace(/'xxx'/, `'${show_prompt}'`)\nreturn {show_prompt,prompt};"
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      "name": "Obtenir la tâche Midjourney",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
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      "parameters": {
        "url": "=https://api.piapi.ai/api/v1/task/{{ $json.data.task_id }}",
        "options": {},
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "x-api-key",
              "value": "={{ $('Basic Params').item.json['x-api-key'] }}"
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      "name": "Attendre la génération Midjourney",
      "type": "n8n-nodes-base.wait",
      "position": [
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      "webhookId": "af79053d-1291-4dd2-889e-4593dbbb2512",
      "parameters": {},
      "typeVersion": 1.1
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    {
      "id": "1d5eaf9a-caf8-4b08-a35c-281b400c9198",
      "name": "Vérifier si l'URL de l'image a été récupérée",
      "type": "n8n-nodes-base.if",
      "position": [
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      "parameters": {
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        "conditions": {
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            "leftValue": "",
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            "typeValidation": "strict"
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          "conditions": [
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              "operator": {
                "name": "filter.operator.equals",
                "type": "string",
                "operation": "equals"
              },
              "leftValue": "={{ $json.data.status }}",
              "rightValue": "completed"
            },
            {
              "id": "50b63a7a-52b5-4766-a859-96ac1ff949ec",
              "operator": {
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                "type": "string",
                "operation": "equals"
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              "leftValue": "={{ $json.data.status }}",
              "rightValue": "failed"
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      "typeVersion": 2.2
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    {
      "id": "983acf91-c5ba-4335-b43e-d7a8a1a6b918",
      "name": "Vérifier l'état de génération de l'image",
      "type": "n8n-nodes-base.switch",
      "position": [
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      "parameters": {
        "rules": {
          "values": [
            {
              "conditions": {
                "options": {
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                  "leftValue": "",
                  "caseSensitive": true,
                  "typeValidation": "strict"
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      "name": "Concevoir dans Canvas",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
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      "parameters": {
        "url": "https://api.canvas.switchboard.ai",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n    \"template\": \"social-3-1\",\n    \"sizes\": [\n        {\n         \"width\": 1000,\n         \"height\": 1500\n        }\n    ],\n    \"elements\": {\n        \"text1\": {\n            \"text\": \"{{ $('Get Prompt').item.json.show_prompt.replace(/;/g, \";\\\\n \")}}\"\n        },\n         \"rectangle1\": {\n                 \"fillColor\": \"#fff\"\n             },\n        \"image1\": {\n            \"url\": \"{{ $json.data.output.temporary_image_urls[0] }}\"\n        }\n    }\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "headerParameters": {
          "parameters": [
            {
              "name": "X-API-Key",
              "value": "45ba3916-2f10-497d-815b-7ffc9b69001f"
            }
          ]
        }
      },
      "typeVersion": 4.2
    },
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      "name": "Obtenir l'URL de l'image",
      "type": "n8n-nodes-base.set",
      "position": [
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      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
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              "name": "data.output.temporary_image_urls",
              "type": "array",
              "value": "={{ $json.data.output.temporary_image_urls }}"
            },
            {
              "id": "49bed53e-675d-4ea0-947c-ffcbfae0ee97",
              "name": "data.output.image_url",
              "type": "string",
              "value": "={{ $json.data.output.image_url }}"
            }
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        }
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      "typeVersion": 3.4
    },
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      "name": "Note adhésive 1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "width": 580,
        "height": 280,
        "content": "## Basic Params\nIn **Basic Params** node, you need to fill in your PiAPI key which you could check in [My Account](https://piapi.ai/workspace/my-account) on [PiAPI](https://piapi.ai). Other information you need to provide is listed as follow📝: \n1. Theme. The theme refers to the topic that you want to talk about when you start your generation.\n2. Scenario. The scenario text usually describe your status about your feeling.\n3. Style. The style of the image.\n4. Example. The text example shown to LLM to describe a style t you want to generate.\n5. Image prompt. Image prompt is usually about the context of the image that you want to generate."
      },
      "typeVersion": 1
    },
    {
      "id": "1e04fe5d-a1f4-4fe9-a3d2-9c6aeaf05d96",
      "name": "Gpt-4o-mini API",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
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        320
      ],
      "parameters": {
        "url": "https://api.piapi.ai/v1/chat/completions",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n    \"model\": \"gpt-4o-mini\",\n    \"messages\": [\n       {\n          \"role\": \"system\",\n          \"content\": \"You are a helpful assistant.\"\n        },\n        {\n          \"role\": \"user\",\n          \"content\": \"Please {{ $json.style }}, based on the theme of {{ $json.theme }} and the scenario of {{ $json.scenario }}, according to the output case and language context. Examples are  {{ $json.example }},Return a sentence directly, nothing else,Don't add a serial number, just a prompt that can be used for input,Do not add any quotation marks.\"}\n      ]\n  }",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "=Bearer {{ $('Basic Params').first().json['x-api-key'] }}"
            }
          ]
        }
      },
      "typeVersion": 4.2
    },
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      "name": "Paramètres de base",
      "type": "n8n-nodes-base.set",
      "position": [
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      "parameters": {
        "mode": "raw",
        "options": {},
        "jsonOutput": "{\n  \"x-api-key\":\"\",\n  \"theme\": \"Hope\",\n  \"scenario\": \"Don't know about the future, confused and feel lost about AI agent\",\n  \"style\":\"Cinematic Grandeur,Sci-Tech Aesthetic, 3D style\",\n  \"example\":\"1. March. Because of your faith, it will happen.2. Something in me will save me.3. To everyone carrying a heavy heart in silence. You are going to be okay.4. Tomorrow will be better.\",\n  \"image_prompt\":\"A cinematic sci-fi metropolis where Deep Neural Nets control a hyper-connected society. Holographic interfaces glow in the air as robotic agents move among humans, symbolizing Industry 4.0. The scene contrasts organic human emotion with cold machine precision, rendered in a hyper-realistic 3D style with futuristic lighting. Epic wide shots showcase the grandeur of this civilization’s industrial evolution.\"\n}\n"
      },
      "typeVersion": 3.4
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    {
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      "name": "Note adhésive 2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "width": 380,
        "height": 200,
        "content": "## Design in Canvas API Node\nWe make a final design with Canvas API. \nYou could check the node code to make a template design more efficiently in Canvas.\nAlso you could make various artworks with template library in Canvas. \nYou could modify node parameters to or add more nodes to make more artworks in one role."
      },
      "typeVersion": 1
    }
  ],
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  "pinData": {},
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}
Foire aux questions

Comment utiliser ce workflow ?

Copiez le code de configuration JSON ci-dessus, créez un nouveau workflow dans votre instance n8n et sélectionnez "Importer depuis le JSON", collez la configuration et modifiez les paramètres d'authentification selon vos besoins.

Dans quelles scénarios ce workflow est-il adapté ?

Intermédiaire - Design, Intelligence Artificielle, Marketing

Est-ce payant ?

Ce workflow est entièrement gratuit et peut être utilisé directement. Veuillez noter que les services tiers utilisés dans le workflow (comme l'API OpenAI) peuvent nécessiter un paiement de votre part.

Informations sur le workflow
Niveau de difficulté
Intermédiaire
Nombre de nœuds14
Catégorie3
Types de nœuds8
Description de la difficulté

Adapté aux utilisateurs expérimentés, avec des workflows de complexité moyenne contenant 6-15 nœuds

Liens externes
Voir sur n8n.io

Partager ce workflow

Catégories

Catégories: 34