41 lines
834 B
Markdown
41 lines
834 B
Markdown
---
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layout: default
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---
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# Middleware: wrapToolCall
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<div class="mt-4 text-xs">
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<v-click>
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Intercepta la ejecución de tools para manejo de errores:
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```typescript
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import { createAgent, createMiddleware, ToolMessage } from "langchain";
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const handleToolErrors = createMiddleware({
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name: "HandleToolErrors",
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wrapToolCall: async (request, handler) => {
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try {
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return await handler(request);
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} catch (error) {
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// Devolver mensaje de error al modelo para que reintente
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return new ToolMessage({
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content: `Error en tool: ${error}. Por favor revisa los parámetros.`,
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tool_call_id: request.toolCall.id!,
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});
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}
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},
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});
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const agent = createAgent({
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model: "mistral:mistral-large-latest",
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tools: [databaseTool, apiTool],
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middleware: [handleToolErrors],
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});
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```
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</v-click>
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</div>
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