Talking to Clerk's backend API from Deno

clerk.ts

#!/usr/bin/env -S deno run --allow-env=CLERK_API_KEY --allow-net=api.clerk.dev --no-check

import {
  ClerkAPIResponseError,
  ClerkBackendAPI,
  User,
} from "https://cdn.skypack.dev/@clerk/backend-core?dts";

const ClerkAPI = new ClerkBackendAPI({
  apiClient: {
    // Copy-pasted from https://github.com/clerkinc/javascript/blob/main/packages/backend-core/src/__tests__/TestClerkApi.ts
    async request({ url, method, queryParams, headerParams, bodyParams }) {
      // Build final URL with search parameters
      const finalUrl = new URL(url || "");

      if (queryParams) {
        for (
          const [key, val] of Object.entries(
            queryParams as Record<string, string | string[]>,
          )
        ) {
          // Support array values for queryParams such as { foo: [42, 43] }
          if (val) {
            [val].flat().forEach((v) => finalUrl.searchParams.append(key, v));
          }
        }
      }

      const response = await fetch(finalUrl.href, {
        method,
        headers: headerParams as Record<string, string>,
        ...(bodyParams && Object.keys(bodyParams).length > 0 &&
          { body: JSON.stringify(bodyParams) }),
      });

      // Parse JSON or Text response.
      const isJSONResponse = headerParams &&
        headerParams["Content-Type"] === "application/json";
      const data = await (isJSONResponse ? response.json() : response.text());

      // Check for errors
      if (!response.ok) {
        throw new ClerkAPIResponseError(response.statusText, {
          data: data?.errors || data,
          status: response.status,
        });
      }

      return data;
    },
  },
  apiKey: Deno.env.get("CLERK_API_KEY"),
});

const users = await ClerkAPI.users.getUserList({ limit: 50 });

users.forEach((user: User) => {
  console.log(user.id, user.username);
});