Automatisation n8n : génération d'images via Webhook

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  "name": "Image Generation API",
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  "nodes": [
    {
      "id": "d743f947-ad45-4e59-97d4-79b98eaddedb",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
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      "webhookId": "970dd3c6-de83-46fd-9038-33c470571390",
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      "name": "Respond to Webhook",
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        "content": "## Webhook Trigger \n**This Node starts listening to requests to the Webhook URL**\n\n"
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        "content": "## Creating your Prompt-URL \n**To use this Workflow you need to append your prompt to your Webhook URL in the following way**\n\n1. Take your Webhook URL\n2. Ideate a Prompt and Replace every Space (\" \") by %20 (Url Encoding)\n3. Append \"?input=\" and right after that your encoded prompt to your url\n4. Copy paste this into a webbrowser as soon as you run the Webhook"
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        "content": "## Starting the Workflow\n**To start the workflow paste the encoded URL into your webbrowser**\n\n"
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      "name": "OpenAI",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
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      "parameters": {
        "prompt": "={{ $json.query.input }}",
        "options": {},
        "resource": "image"
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        "content": "## Response\n**Watch the image being rendered in your webbrowser**\n\n"
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    "Webhook": {
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