1Find comments on HN (powered by [Algolia](https://hn.algolia.com/api)), extract content and return a streaming markdown summary (powered by [Substrate](https://substrate.run)).
2
3The RAG portion of this is 34 lines of Substrate code. Read the walkthrough: https://x.com/vprtwn/status/1812844236401762513
4
5🪩 To fork, [sign up for Substrate](https://substrate.run/signin) to get your own API key and $50 free credits.
6
7See also:
1# OpenAI Proxy
2
3This OpenAI API proxy injects Val Town's API keys. For usage documentation, check out https://www.val.town/v/std/openai
1import { parseBearerString } from "https://esm.town/v/andreterron/parseBearerString";
2import { API_URL } from "https://esm.town/v/std/API_URL?v=5";
3import { OpenAIUsage } from "https://esm.town/v/std/OpenAIUsage";
4import { RateLimit } from "npm:@rlimit/http";
27 const authHeader = req.headers.get("Proxy-Authorization") || req.headers.get("Authorization");
28 const token = authHeader ? parseBearerString(authHeader) : undefined;
29 const meRes = await fetch(`${API_URL}/v1/me`, { headers: { Authorization: `Bearer ${token}` } });
30 if (!meRes.ok) {
31 return new Response("Unauthorized", { status: 401 });
41
42 // Proxy the request
43 const url = new URL("." + pathname, "https://api.openai.com");
44 url.search = search;
45
46 const headers = new Headers(req.headers);
47 headers.set("Host", url.hostname);
48 headers.set("Authorization", `Bearer ${Deno.env.get("OPENAI_API_KEY")}`);
49 headers.set("OpenAI-Organization", Deno.env.get("OPENAI_API_ORG"));
50
51 const modifiedBody = await limitFreeModel(req, user);
45
46async function getGithubReleases(repo: string): Promise<GithubRelease[]> {
47 const response = await fetch(`https://api.github.com/repos/${repo}/releases`);
48 if (!response.ok) {
49 throw new Error(`Failed to fetch releases from ${repo}`);
1// This implementation uses SQLite to store blob data instead of the Val Town API.
2// It creates a 'blobs' table to store key-value pairs, where the key is the blob key
3// and the value is the blob data stored as TEXT. This approach allows for persistence
13 }
14
15 // Check that your valtown API key is sent in the 'x-authorization' header
16 // Delete this line if you don't mind other parties hitting this endpoint
17 if (req.headers.get("x-authorization") !== Deno.env.get("valtown")) {
24 try {
25 const body = await req.json();
26 const apiKey = req.headers.get("x-api-key");
27
28 if (!body) {
30 }
31
32 if (!apiKey) {
33 throw new Error("No API key provided");
34 }
35
36 const anthropic = new Anthropic({ apiKey });
37
38 if (body?.stream) {
57 }
58 } catch (e) {
59 if (e instanceof Anthropic.APIError) {
60 return Response.json(e.error, { status: e.status });
61 }
96 const data = await response;
97 const update = await fetch(
98 `https://discord.com/api/v10/webhooks/${body.application_id}/${body.token}/messages/@original`,
99 {
100 method: "PATCH",
3THIS IS NO LONGER NECESSARY
4
5This Val will proxy anthropic HTTP requests from some frontend client, like langchain, so that you can utilize anthropic apis from the browser.
6
7Convert it to an HTTP val in order to use it (you may want to setup an ENV var / header to protect the endpoint with a secret key)
13Change the `query` variable for what you want to get notified for.
14
15You can use [Twitter's search operators](https://developer.twitter.com/en/docs/twitter-api/v1/rules-and-filtering/search-operators) to customize your query, for some collection of keywords, filtering out others, and much more!
16
17## 3. Notification
3async function getOpenAI() {
4 // if you don't have a key, use our std library version
5 if (Deno.env.get("OPENAI_API_KEY") === undefined) {
6 const { OpenAI } = await import("https://esm.town/v/std/openai");
7 return new OpenAI();
