@agentek/tools/dist/esm/zrouter/api.js

Blockchain tools for AI agents

import { ZROUTER_API_URL } from "./constants.js";
/**
 * Serialize a token for JSON transport (BigInt -> string).
 */
function serializeToken(token) {
    return {
        ...token,
        id: token.id != null ? token.id.toString() : undefined,
    };
}
/**
 * Deserialize a single route from the API (string -> BigInt).
 */
function deserializeRoute(route) {
    return {
        ...route,
        expectedAmount: BigInt(route.expectedAmount),
        steps: route.steps.map((step) => ({
            ...step,
            amount: step.amount != null ? BigInt(step.amount) : 0n,
            limit: step.limit != null ? BigInt(step.limit) : 0n,
            deadline: step.deadline != null ? BigInt(step.deadline) : 0n,
            expectedAmount: step.expectedAmount != null ? BigInt(step.expectedAmount) : undefined,
            tokenIn: {
                ...step.tokenIn,
                id: step.tokenIn?.id ? BigInt(step.tokenIn.id) : undefined,
            },
            tokenOut: {
                ...step.tokenOut,
                id: step.tokenOut?.id ? BigInt(step.tokenOut.id) : undefined,
            },
            // Preserve Matcha transaction data
            ...(step.transaction
                ? {
                    transaction: {
                        ...step.transaction,
                        value: step.transaction.value != null ? BigInt(step.transaction.value) : 0n,
                    },
                }
                : {}),
        })),
    };
}
/**
 * Fetch routes from the zrouter-api HTTP service.
 * Returns RouteOption[] sorted best-first, or null on failure.
 */
export async function fetchApiRoutes(params) {
    try {
        const response = await fetch(`${ZROUTER_API_URL}/quote`, {
            method: "POST",
            headers: { "Content-Type": "application/json" },
            body: JSON.stringify({
                chainId: params.chainId.toString(),
                tokenIn: serializeToken(params.tokenIn),
                tokenOut: serializeToken(params.tokenOut),
                side: params.side,
                amount: params.amount.toString(),
                owner: params.owner,
                slippageBps: params.slippageBps ?? 50,
            }),
            signal: AbortSignal.timeout(15_000),
        });
        if (!response.ok)
            return null;
        const data = await response.json();
        if (!data.routes || data.routes.length === 0)
            return null;
        return data.routes.map(deserializeRoute);
    }
    catch {
        return null;
    }
}
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