counterfact/dist/server/openapi-middleware.js

a library for building a fake REST API for testing

import yaml from "js-yaml";
import { readFile } from "../util/read-file.js";
export function openapiMiddleware(openApiPath, url) {
    return async (ctx, next) => {
        if (ctx.URL.pathname === "/counterfact/openapi") {
            const openApiDocument = (await yaml.load(await readFile(openApiPath)));
            openApiDocument.servers ??= [];
            openApiDocument.servers.unshift({
                description: "Counterfact",
                url,
            });
            // OpenApi 2 support:
            openApiDocument.host = url;
            ctx.body = yaml.dump(openApiDocument);
            return;
        }
        await next();
    };
}