index.ts

interface DatabaseModel {
	id: number;
	name: string;
	description: string;
	createdAt: Date;
	updatedAt: Date;
	archived: boolean;
}

type PutAPIModel = Partial<DatabaseModel>;
type APIRequest = { body: PutAPIModel };
type StatusResponse = { send: (o: any) => void };
type APIResponse = { status: (code: number) => StatusResponse };

const update: (id: number, model: Partial<DatabaseModel>) => Promise<boolean> = () => Promise.resolve(true);
const insert: (model: Partial<DatabaseModel>) => Promise<boolean> = () => Promise.resolve(true);

const put = async (request: APIRequest, response: APIResponse) => {
	const { body } = request;
	const { id } = body;
	let success;
	if (id) {
		//update
		success = await update(id, body);
	} else {
		//insert
		success = await insert(body);
	}
	if (success) {
		response.status(200).send(success);
	} else {
		response.status(400).send(success);
	}
};