48 lines
911 B
Markdown
48 lines
911 B
Markdown
---
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layout: default
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---
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# Checkpointer: PostgresSaver
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<div class="mt-4 text-xs">
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<v-click>
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**PostgresSaver**: Persistencia en PostgreSQL (producción)
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```bash
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npm install @langchain/langgraph-checkpoint-postgres
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```
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</v-click>
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<v-click>
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```typescript
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import { createAgent } from "langchain";
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import { PostgresSaver } from "@langchain/langgraph-checkpoint-postgres";
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const DB_URI = "postgresql://user:pass@localhost:5432/mydb";
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const checkpointer = PostgresSaver.fromConnString(DB_URI);
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await checkpointer.setup();
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const agent = createAgent({
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model: "mistral:mistral-large-latest",
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tools: [weatherTool],
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checkpointer,
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});
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```
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</v-click>
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<v-click>
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<div class="mt-4 text-xs opacity-80">
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También disponibles: **MongoDB** (`@langchain/langgraph-checkpoint-mongodb`),
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**Redis** (`@langchain/langgraph-checkpoint-redis`), y **Custom** (implementar `BaseCheckpointSaver`)
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</div>
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</v-click>
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</div>
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