sei-agent-kit/dist/src/langchain/symphony/swap.js

A package for building AI agents on the SEI blockchain

import { StructuredTool } from "langchain/tools";
import { z } from "zod";
const SwapInputSchema = z.object({
    amount: z.string().min(1, "Amount must not be empty"),
    tokenInTicker: z.string().min(1, "Token input ticker must not be empty"),
    tokenOutTicker: z.string().min(1, "Token output ticker must not be empty"),
});
export class SeiSwapTool extends StructuredTool {
    seiKit;
    name = "sei_swap";
    description = `Swap tokens using the Symphony aggregator.

  Parameters:
  - amount: The amount of tokens to swap as a string (e.g., "1.5").
  - tokenInTicker: The ticker symbol of the token to swap from (e.g., "SEI").
  - tokenOutTicker: The ticker symbol of the token to swap to (e.g., "USDC").`;
    schema = SwapInputSchema;
    constructor(seiKit) {
        super();
        this.seiKit = seiKit;
    }
    async _call(input) {
        try {
            const tokenInAddress = input.tokenInTicker === "SEI" ? "0x0" : await this.seiKit.getTokenAddressFromTicker(input.tokenInTicker);
            const tokenOutAddress = input.tokenOutTicker === "SEI" ? "0x0" : await this.seiKit.getTokenAddressFromTicker(input.tokenOutTicker);
            const result = await this.seiKit.swap(input.amount, tokenInAddress, tokenOutAddress);
            return JSON.stringify({
                status: "success",
                result,
                fromToken: input.tokenInTicker,
                toToken: input.tokenOutTicker,
                amount: input.amount,
            });
        }
        catch (error) {
            return JSON.stringify({
                status: "error",
                message: error.message,
                code: error.code || "UNKNOWN_ERROR",
            });
        }
    }
}
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