Add or update environment variable

//native

type Render = {

	apiKey: string

}

/**

 * Add or update environment variable

 * Add or update a particular environment variable in a particular environment group.

 */

export async function main(

	auth: Render,

	envGroupId: string,

	envVarKey: string,

	body: { value: string } | { generateValue: false | true }

) {

	const url = new URL(`https://api.render.com/v1/env-groups/${envGroupId}/env-vars/${envVarKey}`)

	const response = await fetch(url, {

		method: 'PUT',

		headers: {

			'Content-Type': 'application/json',

			Authorization: 'Bearer ' + auth.apiKey

		},

		body: JSON.stringify(body)

	})

	if (!response.ok) {

		const text = await response.text()

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

	}

	return await response.json()

}