Update attachment data

//native

type Confluence = {

	email: string

	apiToken: string

	domain: string

}

type Base64 = string

/**

 * Update attachment data

 * Updates the binary data of an attachment, given the attachment ID, and

optionally the comment and the minor edit field.

 */

export async function main(

	auth: Confluence,

	id: string,

	attachmentId: string,

	body: {

		file: {

			base64: Base64

			type:

				| 'image/png'

				| 'image/jpeg'

				| 'image/gif'

				| 'application/pdf'

				| 'appication/json'

				| 'text/csv'

				| 'text/plain'

				| 'audio/mpeg'

				| 'audio/wav'

				| 'video/mp4'

			name: string

		}

		comment?: {

			base64: Base64

			type:

				| 'image/png'

				| 'image/jpeg'

				| 'image/gif'

				| 'application/pdf'

				| 'appication/json'

				| 'text/csv'

				| 'text/plain'

				| 'audio/mpeg'

				| 'audio/wav'

				| 'video/mp4'

			name: string

		}

		minorEdit: {

			base64: Base64

			type:

				| 'image/png'

				| 'image/jpeg'

				| 'image/gif'

				| 'application/pdf'

				| 'appication/json'

				| 'text/csv'

				| 'text/plain'

				| 'audio/mpeg'

				| 'audio/wav'

				| 'video/mp4'

			name: string

		}

	}

) {

	const url = new URL(

		`https://${auth.domain}/wiki/rest/api/content/${id}/child/attachment/${attachmentId}/data`

	)

	const formData = new FormData()

	for (const [k, v] of Object.entries(body)) {

		if (v !== undefined) {

			if (['file', 'comment', 'minorEdit'].includes(k)) {

				const { base64, type, name } = v as {

					base64: Base64

					type: string

					name: string

				}

				formData.append(

					k,

					new Blob([Uint8Array.from(atob(base64), (m) => m.codePointAt(0)!)], {

						type

					}),

					name

				)

			} else {

				formData.append(k, String(v))

			}

		}

	}

	const response = await fetch(url, {

		method: 'POST',

		headers: {

			Authorization: 'Basic ' + btoa(`${auth.email}:${auth.apiToken}`)

		},

		body: formData

	})

	if (!response.ok) {

		const text = await response.text()

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

	}

	return await response.json()

}