Generate Post Linkedin

The workflow JSON

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{
  "name": "generate-post-linkedin",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "generate-post",
        "responseMode": "responseNode",
        "options": {}
      },
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        -176,
        0
      ],
      "id": "7a49b4af-2000-406d-a361-902effea36df",
      "name": "Webhook"
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "name": "type",
              "value": "={{ $json.body.type || 'Projet technique' }}",
              "type": "string",
              "id": "e5422d7d-2cd5-43e5-bd45-79d69ea0770f"
            },
            {
              "name": "description",
              "value": "={{ $json.body.description || '' }}",
              "type": "string",
              "id": "d5d4d2de-9a49-4716-a302-4188bd0ee4b8"
            },
            {
              "name": "tech",
              "value": "={{ $json.body.tech || '' }}",
              "type": "string",
              "id": "df6144b9-8555-4874-9d62-41aab45a92f5"
            },
            {
              "name": "tone",
              "value": "={{ $json.body.tone || 'Professionnel' }}",
              "type": "string",
              "id": "92c17707-b663-4a4f-8a73-010c30dce608"
            },
            {
              "name": "model",
              "value": "={{ $json.body.model || 'deepseek' }}",
              "type": "string",
              "id": "51148234-0031-4969-877e-0a508145986b"
            },
            {
              "name": "prompt",
              "value": "=Tu es un expert LinkedIn copywriter. R\u00e9dige un post LinkedIn en fran\u00e7ais pour un ing\u00e9nieur.\n\nType de post: ' + $json.body.type + '\nDescription: ' + $json.body.description + '\nTechnologies: ' + ($json.body.tech || 'non sp\u00e9cifi\u00e9') + '\nTon souhait\u00e9: ' + ($json.body.tone || 'Professionnel') + '\n\nR\u00e8gles:\n- Accroche forte d\u00e8s la premi\u00e8re ligne\n- Contenu concret et utile\n- Terminer par une question engageante\n- 5 \u00e0 8 hashtags pertinents \u00e0 la fin\n- Entre 150 et 250 mots\n- Ton humain et authentique\n\nR\u00e9ponds uniquement avec le texte du post, sans commentaire.",
              "type": "string",
              "id": "a2256c56-809d-460f-a19c-5d02b2b6eb95"
            },
            {
              "name": "modelId",
              "value": "={{ $json.body.model === 'gemini' ? 'google/gemini-2.0-flash-exp:free' : $json.body.model === 'grok' ? 'x-ai/grok-3-mini-beta' : 'deepseek/deepseek-chat' }}",
              "type": "string",
              "id": "894c5813-c19c-49ee-81e5-385f1853b404"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        80,
        0
      ],
      "id": "80c05e60-562d-433e-8093-6cafd1507d13",
      "name": "Set Params"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://openrouter.ai/api/v1/chat/completions",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "Bearer {{$env.OPENROUTER_API_KEY}}"
            },
            {
              "name": "Content-Type",
              "value": "application/json"
            },
            {
              "name": "HTTP-Referer",
              "value": "http://localhost:3000"
            },
            {
              "name": "X-Title",
              "value": "LinkedAI"
            }
          ]
        },
        "sendBody": true,
        "bodyParameters": {
          "parameters": [
            {
              "name": "model",
              "value": "={{ $json.modelId }}"
            },
            {
              "name": "messages",
              "value": "={{ JSON.stringify([{ role: 'user', content: $json.prompt }]) }}"
            },
            {
              "name": "max_tokens",
              "value": "=1000"
            },
            {
              "name": "temperature",
              "value": "=0.8"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        448,
        0
      ],
      "id": "72e7491d-ddf4-4101-ab90-2e8d8e2e133e",
      "name": "OpenRouter API"
    },
    {
      "parameters": {
        "jsCode": "const response = $input.first().json;\n\nlet postText = '';\ntry {\n  postText = response.choices[0].message.content;\n} catch(e) {\n  postText = 'Erreur lors de la g\u00e9n\u00e9ration du post.';\n}\n\nconst model = $('Set Params').first().json.model;\nconst type  = $('Set Params').first().json.type;\n\nreturn [{\n  json: {\n    success: true,\n    post: postText,\n    model: model,\n    type: type,\n    chars: postText.length,\n    generatedAt: new Date().toISOString()\n  }\n}];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        672,
        0
      ],
      "id": "9d9633ba-0aad-47f9-ad4a-f6ab25157fcd",
      "name": "Extract Post"
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ JSON.stringify($json) }}",
        "options": {
          "responseCode": 200
        }
      },
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        880,
        0
      ],
      "id": "7564f1d2-e5a8-444d-8296-f06d62fc8c20",
      "name": "Respond to Webhook"
    },
    {
      "parameters": {
        "jsCode": "const body = $('Set Params').first().json;\n\nconst type        = body.type        || 'Projet technique';\nconst description = body.description || '';\nconst tech        = body.tech        || 'non sp\u00e9cifi\u00e9';\nconst tone        = body.tone        || 'Professionnel';\nconst model       = body.model       || 'deepseek';\n\nconst prompt = `Tu es un expert LinkedIn copywriter. R\u00e9dige un post LinkedIn en fran\u00e7ais pour un ing\u00e9nieur.\n\nType de post: ${type}\nDescription: ${description}\nTechnologies: ${tech}\nTon souhait\u00e9: ${tone}\n\nR\u00e8gles:\n- Accroche forte d\u00e8s la premi\u00e8re ligne\n- Contenu concret et utile\n- Terminer par une question engageante\n- 5 \u00e0 8 hashtags pertinents \u00e0 la fin\n- Entre 150 et 250 mots\n- Ton humain et authentique\n\nR\u00e9ponds uniquement avec le texte du post, sans commentaire.`;\n\nconst modelId = model === 'gemini' ? 'google/gemini-2.0-flash-exp:free'\n              : model === 'grok'   ? 'x-ai/grok-3-mini-beta'\n              :                     'deepseek/deepseek-chat';\n\nreturn [{ json: { type, description, tech, tone, model, prompt, modelId } }];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        272,
        0
      ],
      "id": "3fd00b35-c037-462f-a3ae-4659e8898cd7",
      "name": "Code in JavaScript"
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "Set Params",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set Params": {
      "main": [
        [
          {
            "node": "Code in JavaScript",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenRouter API": {
      "main": [
        [
          {
            "node": "Extract Post",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract Post": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Code in JavaScript": {
      "main": [
        [
          {
            "node": "OpenRouter API",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1",
    "binaryMode": "separate"
  },
  "versionId": "04886bff-5f8b-433c-8109-ccb50122224c",
  "id": "vOFW1SerTsTzxc4g",
  "tags": []
}

About this workflow

generate-post-linkedin. Uses httpRequest. Webhook trigger; 6 nodes.

Source: https://github.com/oussamaalmouallim/job-automation-/blob/4ad910adf0a37a71c0a1216a19a78b197874302a/n8n-workflows/generateur.json — original creator credit. Request a take-down →

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