/*
gateway.mjs
HTTP client that forwards tool calls to the e0 gateway.
This is how the MCP server routes requests through the existing infrastructure.
*/
const GATEWAY_URL = process.env.GATEWAY_URL || 'http://localhost:3005';
const API_KEY = process.env.STOLABS_API_KEY;
/**
* Route a request through the e0 gateway.
* This is the same call any HTTP client would make — the MCP server
* is just another client of the gateway.
*
* @param {string} routeName - The 638Labs route (e.g., "stolabs/prod-01")
* @param {object} payload - The OpenAI-compatible request body
* @param {string} providerApiKey - Optional provider API key for external endpoints
* @returns {object} The response from the target endpoint
*/
export async function routeRequest(routeName, payload, providerApiKey) {
const headers = {
'Content-Type': 'application/json',
'x-stolabs-api-key': API_KEY,
'x-stolabs-route-name': routeName,
};
// add provider auth if the endpoint needs it (external providers like OpenAI)
if (providerApiKey) {
headers['Authorization'] = providerApiKey;
}
const response = await fetch(`${GATEWAY_URL}/api/v1/`, {
method: 'POST',
headers,
body: JSON.stringify(payload),
});
if (!response.ok) {
const errorText = await response.text();
throw new Error(`Gateway error (${response.status}): ${errorText}`);
}
return await response.json();
}
/**
* Route a request through the auction system.
* Sends to stolabs/stoAuction route which triggers sealed-bid auction.
*/
export async function auctionRequest(payload) {
return routeRequest('stolabs/stoAuction', payload);
}
