Valider une chaîne JSON via Webhook

• •Point de terminaison HTTP Webhook (généré automatiquement par n8n)

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      "name": "Recevoir la chaîne JSON",
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        "httpMethod": "POST",
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        "jsCode": "// This node validates if the 'jsonString' in the webhook body is valid JSON.\n// It returns 'valid: true' or 'valid: false' along with an error message if invalid.\n\nconst results = [];\n\nfor (const item of $input.all()) {\n  try {\n    // Attempt to parse the jsonString from the webhook body\n    // Ensure 'jsonString' exists before attempting to parse\n    if (item.json.body && typeof item.json.body.jsonString === 'string') {\n      JSON.parse(item.json.body.jsonString);\n      results.push({ json: { valid: true } });\n    } else {\n      // Handle cases where jsonString is missing or not a string\n      results.push({ json: { valid: false, error: \"Input 'jsonString' is missing or not a string.\" } });\n    }\n  } catch (e) {\n    // If parsing fails, push the error message\n    results.push({ json: { valid: false, error: e.message } });\n  }\n}\n\nreturn results;"
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      "name": "Note : Entrée Webhook",
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        "content": "## Webhook Input\n\nThis node listens for incoming POST requests. It expects a JSON body containing a single property: `jsonString` (the string you wish to validate as JSON)."
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      "name": "Note : Logique de validation JSON",
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        "content": "## JSON Validation Logic\n\nThis node contains custom JavaScript code to parse the `jsonString` from the webhook input. It returns `valid: true` if successful, or `valid: false` with an `error` message if parsing fails."
      },
      "typeVersion": 1
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        "content": "## Webhook Response\n\nThis node sends the validation result (whether the `jsonString` was valid JSON or not, including an error if applicable) back to the system that triggered the webhook."
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