useWrite

function CreateUser() {
  const { trigger, loading, error } = useWrite(
    (api) => api("users").POST()
  );

  const handleSubmit = async (formData: CreateUserBody) => {
    const result = await trigger({ body: formData });

    if (result.data) {
      console.log("Created:", result.data);
    }
  };

  return (
    <form onSubmit={handleSubmit}>
      {/* form fields */}
      <button disabled={loading}>
        {loading ? "Creating..." : "Create User"}
      </button>
    </form>
  );
}

const { trigger } = useWrite((api) => api("posts").POST());

await trigger({
  body: { title: "New Post", content: "..." },
  invalidate: ["posts"],
});

const { trigger, meta } = useWrite((api) => api("posts").POST(), {
  transform: (post) => ({
    success: true,
    postId: post.id,
    createdAt: new Date(post.timestamp),
  }),
});

await trigger({ body: { title: "New Post" } });

// meta.transformedData is available after trigger completes