US Congress Stock Trading API examples & templates
Use these vals as a playground to view and fork US Congress Stock Trading API examples and templates on Val Town. Run any example below or find templates that can be used as a pre-built solution.
yieldray
decorator_router
Script
Decorator Router Fair simple decorator based router, with GET/POST and middleware support. demo live demo: https://yieldray-decorator_router_demo.web.val.run/ import { get, post, all, use, registered, handler, type Context } from "https://esm.town/v/yieldray/decorator_router";
import { parseBearerAuth, transformResponse } from "https://esm.sh/serve-router@1.1.0/utils";
interface User {
id: number;
name: string;
}
const users: User[] = [
{ id: 0, name: "Alice" },
{ id: 1, name: "Ray" },
];
class _Server {
/**
* Decorator @get: Parses URLSearchParams into an object as the first parameter.
*/
@get("/users")
getAllUsers() {
return users; // Automatically wrapped in a Response.json
}
@get("/getUserByName") // GET /getUserByName?name=Alice
getUserByName({ name }: Record<string, string>) {
const user = users.find((u) => u.name === name);
if (user) {
return user; // Automatically wrapped as Response.json(user)
}
// Optionally, manually return a Response object
return Response.json({ error: "not found" }, { status: 404 });
}
@get("/user/:id") // GET /user/123
user(_: unknown, { params: { id } }: Context) {
return users.find((u) => u.id === Number(id));
}
/**
* Decorator @post: Parses the request body into an object as the first parameter.
*/
@post("/user") // POST /user
async createUser(user: User) {
if (users.find((u) => u.id === user.id)) {
return { error: "already exists!" };
}
await users.push(user); // Assume insertion into a database
return { ok: true, users };
}
@post("/user/:id") // POST /user/123
async updateUser(user: User, { params: { id }, request }: Context) {
const token = parseBearerAuth(request.headers.get("Authorization")!);
// Additional logic here...
}
@all("/")
home({ request }: { request: Request }) {
return {
registered,
method: request.method,
url: request.url,
headers: Object.fromEntries(request.headers.entries()),
};
}
@use("/*")
async corsMiddleware({ next, request }: Context) {
const resp = await next();
return transformResponse(resp, {
headers: {
"Access-Control-Allow-Origin": request.headers.get("origin") || "*",
},
});
}
}
// For Deno:
Deno.serve(handler);
// For val.town:
export default handler;
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