Get the database schema

//native

type Neondb = {

	apiKey: string

}

/**

 * Get the database schema

 * Retrieves the schema from the specified database. The `lsn` and `timestamp` values cannot be specified at the same time. If both are omitted, the database schema is retrieved from database's head.

 */

export async function main(

	auth: Neondb,

	project_id: string,

	branch_id: string,

	db_name: string | undefined,

	lsn: string | undefined,

	timestamp: string | undefined

) {

	const url = new URL(

		`https://console.neon.tech/api/v2/projects/${project_id}/branches/${branch_id}/schema`

	)

	for (const [k, v] of [

		['db_name', db_name],

		['lsn', lsn],

		['timestamp', timestamp]

	]) {

		if (v !== undefined && v !== '' && k !== undefined) {

			url.searchParams.append(k, v)

		}

	}

	const response = await fetch(url, {

		method: 'GET',

		headers: {

			Authorization: 'Bearer ' + auth.apiKey

		},

		body: undefined

	})

	if (!response.ok) {

		const text = await response.text()

		throw new Error(`${response.status} ${text}`)

	}

	return await response.json()

}