import type { TextContent } from "fastmcp";
// Helper function to format successful API responses
function formatResponse(data: any): TextContent {
return {
type: "text",
text: JSON.stringify(data.result),
};
}
// Helper function for making API requests to Etherscan
export async function makeApiRequest(params = {}) {
const apiKey = process.env.ETHERSCAN_API_KEY;
if (!apiKey) {
throw new Error("ETHERSCAN_API_KEY environment variable is not set");
}
// Build query parameters
const queryParams = new URLSearchParams();
Object.entries(params).forEach(([key, value]) => {
if (value !== undefined && value !== null) {
queryParams.append(key, value.toString());
}
});
queryParams.append("apikey", apiKey);
const url = `https://api.etherscan.io/v2/api${
queryParams.toString() ? `?${queryParams.toString()}` : ""
}`;
const response = await fetch(url, {
method: "GET",
headers: {
Accept: "application/json",
},
});
if (!response.ok) {
throw new Error(
`Error fetching data from Etherscan: ${response.statusText}`
);
}
return await response.json();
}
export async function apiCall(params = {}): Promise<TextContent> {
const data = await makeApiRequest(params);
return formatResponse(data);
}
