Function handleCreate

examples/artifacts/src/index.ts:103–195

(request: Request, env: Env)

} satisfies ExportedHandler<Env>;

async function handleCreate(request: Request, env: Env): Promise<Response> {
  if (request.method !== "POST") {
    return new Response("method not allowed", { status: 405, headers: { allow: "POST" } });
  }

  let body: CreateRequest;
  try {
    body = (await request.json()) as CreateRequest;
  } catch {
    return errorJSON(new Error("invalid JSON body"), 400);
  }

  if (typeof body.name !== "string") {
    return errorJSON(new Error("name must be a string"), 400);
  }
  const name = body.name.trim();
  if (!isValidWorkerName(name)) {
    return errorJSON(
      new Error(
        "name must start with a lowercase letter or digit and contain only lowercase letters, digits, and hyphens",
      ),
      400,
    );
  }

  const stub = env.ArtifactCreator.get(env.ArtifactCreator.idFromName(name));
  // `wrangler types` doesn't surface the `__getWorkspaceStub` accessor
  // the `withWorkspace` mixin installs, so cast once at the boundary
  // and keep the rest readable.
  const ws = await getWorkspace(stub as unknown as Parameters<typeof getWorkspace>[0]);
  const sourceDir = `${WORKSPACE_ROOT}/${name}-source`;
  const projectDir = `${WORKSPACE_ROOT}/${name}`;

  try {
    await exec(
      ws,
      [
        sh`rm -rf ${sourceDir} ${projectDir}`,
        sh`git clone --depth 1 ${SOURCE_REPO} ${sourceDir}`,
        sh`mkdir -p ${projectDir}`,
        sh`cp -R ${`${sourceDir}/${EXAMPLE_PATH}/.`} ${projectDir}`,
        sh`sed -i ${`s/"name"[[:space:]]*:[[:space:]]*"[^"]*"/"name": "${name}"/`} ${`${projectDir}/wrangler.jsonc`}`,
        sh`sed -i ${`s/"name"[[:space:]]*:[[:space:]]*"[^"]*"/"name": "@example\\/${name}"/`} ${`${projectDir}/package.json`}`,
        sh`git init --initial-branch=main ${projectDir}`,
        sh`cat ${`${projectDir}/.git/HEAD`} >/dev/null`,
        "git add .",
        sh`git commit -m ${`Create ${name} worker example`} --author ${"Cloudflare Computer Artifacts Example <computer-artifacts@example.invalid>"}`,
      ].join(" && "),
      { cwd: projectDir },
    );

    // One command does the three setup steps: create the repo, mint
    // a write token, and register the credentialed remote as
    // `origin` in the project. `--force` makes the demo rerunnable
    // with the same name — the repo is session-scoped by
    // createArtifact() in the durable object, so this only touches
    // the project this endpoint owns. The credentialed remote URL is
    // a secret, so it is redacted from any error output.