import {
LINKEDIN_CONNECT_URL,
LINKEDIN_UPLOAD_ORIGIN,
LINKEDIN_VERSION,
LinkedInApiError,
linkedinRequest,
linkedinRequestWithResponse,
linkedInRestHeadersPreview,
uploadLinkedInImageBytes,
} from './request.ts'
import type {
CreateArticlePostInput,
CreateImagePostInput,
CreatePostInput,
CreateTextPostInput,
CreateVideoPostInput,
DeletePostInput,
FinalizeVideoUploadInput,
JsonRecord,
LinkedInUserInfo,
LinkedInVisibility,
RegisterImageUploadInput,
RegisterVideoUploadInput,
UploadVideoPartInput,
VideoUploadInstruction,
} from './types.ts'
export type {
CreateArticlePostInput,
CreateImagePostInput,
CreatePostInput,
CreateTextPostInput,
CreateVideoPostInput,
DeletePostInput,
FinalizeVideoUploadInput,
JsonRecord,
LinkedInRequestInput,
LinkedInRequestResult,
LinkedInUserInfo,
LinkedInVisibility,
QueryInput,
QueryValue,
RegisterImageUploadInput,
RegisterVideoUploadInput,
UploadVideoPartInput,
VideoUploadInstruction,
} from './types.ts'
export {
LinkedInApiError,
LINKEDIN_ACCESS_TOKEN_SECRET,
LINKEDIN_API_ORIGIN,
LINKEDIN_INTEGRATION,
LINKEDIN_UPLOAD_ORIGIN,
LINKEDIN_VERSION,
RESTLI_PROTOCOL_VERSION,
linkedinRequest,
linkedinRequestWithResponse,
rawLinkedInRequest,
request,
} from './request.ts'
export { requireRecord, requireStringField } from './types.ts'
export async function getUserInfo(): Promise<LinkedInUserInfo> {
const userInfo = await linkedinRequest<LinkedInUserInfo>('/v2/userinfo')
if (!stringValue(userInfo.sub)) {
throw new Error('LinkedIn userinfo response did not include the required sub field.')
}
return userInfo
}
export async function getPersonUrn(): Promise<{ personUrn: string; userInfo: LinkedInUserInfo }> {
const userInfo = await getUserInfo()
return {
personUrn: personUrnFromUserInfo(userInfo),
userInfo,
}
}
export async function smokeTest(): Promise<JsonRecord> {
const userInfo = await getUserInfo()
return {
ok: true,
integration: 'linkedin',
endpoint: 'https://api.linkedin.com/v2/userinfo',
tokenMode: 'saved OAuth integration',
hasSubject: Boolean(userInfo.sub),
hasName: Boolean(userInfo.name),
hasEmail: Boolean(userInfo.email),
emailVerified: userInfo.email_verified ?? null,
hasPicture: Boolean(userInfo.picture),
hasLocale: Boolean(userInfo.locale),
personUrnPresent: Boolean(userInfo.sub),
connectUrl: LINKEDIN_CONNECT_URL,
refreshTokenNote:
'No linkedinRefreshToken is currently saved; reconnect with https://kody.codes/connect/oauth?provider=linkedin when the access token expires.',
}
}
export async function createTextPost(input: CreateTextPostInput): Promise<JsonRecord> {
const text = requireString(input.text, 'create-text-post requires params.text.')
const visibility = normalizeVisibility(input.visibility)
const author = await resolveAuthor(input.author)
const payload = buildTextPostPayload({
author,
commentary: text,
visibility,
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
if (input.dryRun) {
return buildPostDryRun('create-text-post', payload)
}
requireConfirm(
input.confirm,
'create-text-post publishes to LinkedIn. Pass params.confirm = true only after explicit user approval.',
)
return createPostRequest('create-text-post', payload)
}
export async function createArticlePost(input: CreateArticlePostInput): Promise<JsonRecord> {
const text = requireString(input.text, 'create-article-post requires params.text.')
const url = requireUrl(input.url, 'create-article-post requires params.url to be a valid URL.')
const title = requireString(input.title, 'create-article-post requires params.title.')
const description = requireString(
input.description,
'create-article-post requires params.description.',
)
const visibility = normalizeVisibility(input.visibility)
const author = await resolveAuthor(input.author)
let thumbnail = stringValue(input.thumbnail)
if (thumbnail) {
thumbnail = requireImageUrn(
thumbnail,
'create-article-post params.thumbnail must be a LinkedIn image URN.',
)
} else if (!input.thumbnailUrl) {
throw new Error(
'create-article-post requires params.thumbnail or params.thumbnailUrl because LinkedIn does not scrape link previews.',
)
}
if (input.dryRun && !thumbnail) {
thumbnail = 'urn:li:image:<uploaded-from-thumbnail-url>'
}
if (!input.dryRun) {
requireConfirm(
input.confirm,
'create-article-post uploads and publishes to LinkedIn. Pass params.confirm = true only after explicit user approval.',
)
if (!thumbnail) {
const image = await imageBytesFromUrl(
requireString(
input.thumbnailUrl,
'create-article-post requires params.thumbnailUrl.',
),
)
const registered = await registerImageUpload({ owner: author, confirm: true })
const registeredValue = asRecord(registered.value) ?? registered
const uploadUrl = requireString(
registeredValue.uploadUrl,
'LinkedIn initializeUpload response is missing value.uploadUrl.',
)
thumbnail = requireImageUrn(
registeredValue.image,
'LinkedIn initializeUpload response is missing value.image.',
)
await uploadLinkedInImageBytes(uploadUrl, image.bytes, image.contentType)
}
}
thumbnail = requireImageUrn(
thumbnail,
'create-article-post could not resolve a LinkedIn image URN.',
)
const payload = buildArticleSharePayload({
author,
commentary: text,
url,
title,
description,
thumbnail,
visibility,
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
if (input.dryRun) {
return {
...buildPostDryRun('create-article-post', payload),
plannedSteps: input.thumbnail
? ['create /rest/posts article post with the supplied image URN']
: [
'initialize /rest/images upload',
'fetch and upload params.thumbnailUrl',
'create /rest/posts article post with title, description, and image URN',
],
}
}
return createPostRequest('create-article-post', payload)
}
export async function deletePost(input: DeletePostInput): Promise<JsonRecord> {
const postUrn = requirePostUrn(input.postUrn)
const path = '/v2/ugcPosts/' + encodeURIComponent(postUrn)
if (input.dryRun) {
return {
dryRun: true,
utility: 'delete-post',
method: 'DELETE',
endpoint: 'https://api.linkedin.com' + path,
postUrn,
deleteNote: 'Pass params.confirm = true only after explicit user approval.',
}
}
requireConfirm(
input.confirm,
'delete-post permanently deletes a LinkedIn post. Pass params.confirm = true only after explicit user approval.',
)
const result = await linkedinRequestWithResponse(path, {
method: 'DELETE',
restli: true,
})
return {
utility: 'delete-post',
ok: result.ok,
status: result.status,
statusText: result.statusText,
postUrn,
}
}
export async function registerImageUpload(input: RegisterImageUploadInput): Promise<JsonRecord> {
const owner = input.owner
? requirePersonUrn(input.owner, 'params.owner')
: (await getPersonUrn()).personUrn
const payload = {
initializeUploadRequest: {
owner,
},
}
if (input.dryRun) {
return {
dryRun: true,
utility: 'register-image-upload',
method: 'POST',
endpoint: 'https://api.linkedin.com/rest/images?action=initializeUpload',
requiredScope: 'w_member_social',
headers: linkedInRestHeadersPreview(),
payload,
nextStep: 'Upload image bytes to value.uploadUrl, then use value.image with create-image-post.',
}
}
requireConfirm(
input.confirm,
'register-image-upload initializes a LinkedIn image upload. Pass params.confirm = true only when you intend to upload media.',
)
try {
return linkedinRequest<JsonRecord>('/rest/images', {
method: 'POST',
query: { action: 'initializeUpload' },
restli: true,
linkedinVersion: LINKEDIN_VERSION,
body: payload,
})
} catch (error) {
throw enhancePostingError(error, 'register-image-upload')
}
}
export async function createImagePost(input: CreateImagePostInput): Promise<JsonRecord> {
const text = requireString(input.text, 'create-image-post requires params.text.')
const imageUrn = requireImageUrn(
input.imageUrn ?? input.asset,
'create-image-post requires params.imageUrn or params.asset to be a LinkedIn image URN from register-image-upload.',
)
const visibility = normalizeVisibility(input.visibility)
const author = await resolveAuthor(input.author)
const payload = buildImageSharePayload({
author,
commentary: text,
imageUrn,
title: stringValue(input.title),
altText: stringValue(input.altText) ?? stringValue(input.description),
visibility,
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
if (input.dryRun) {
return buildPostDryRun('create-image-post', payload)
}
requireConfirm(
input.confirm,
'create-image-post publishes to LinkedIn. Pass params.confirm = true only after explicit user approval.',
)
return createPostRequest('create-image-post', payload)
}
export async function registerVideoUpload(input: RegisterVideoUploadInput): Promise<JsonRecord> {
const owner = input.owner
? requirePersonUrn(input.owner, 'params.owner')
: (await getPersonUrn()).personUrn
const fileSizeBytes = requirePositiveInteger(
input.fileSizeBytes,
'register-video-upload requires params.fileSizeBytes.',
)
const initializeUploadRequest: JsonRecord = {
owner,
fileSizeBytes,
uploadCaptions: input.uploadCaptions === true,
uploadThumbnail: input.uploadThumbnail === true,
}
if (input.linkbackContext) initializeUploadRequest.linkbackContext = input.linkbackContext
if (input.templateName) initializeUploadRequest.templateName = input.templateName
const payload = { initializeUploadRequest }
if (input.dryRun) {
return {
dryRun: true,
utility: 'register-video-upload',
method: 'POST',
endpoint: 'https://api.linkedin.com/rest/videos?action=initializeUpload',
requiredScope: 'w_member_social',
headers: linkedInRestHeadersPreview(),
payload,
nextStep:
'PUT each byte range to the returned uploadInstructions URLs, collect ETags in order, then call finalize-video-upload.',
}
}
requireConfirm(
input.confirm,
'register-video-upload initializes a LinkedIn video upload. Pass params.confirm = true only when you intend to upload media.',
)
try {
return linkedinRequest<JsonRecord>('/rest/videos', {
method: 'POST',
query: { action: 'initializeUpload' },
restli: true,
linkedinVersion: LINKEDIN_VERSION,
body: payload,
})
} catch (error) {
throw enhancePostingError(error, 'register-video-upload')
}
}
export async function uploadVideoPart(input: UploadVideoPartInput): Promise<JsonRecord> {
const uploadUrl = requireLinkedInUploadUrl(input.uploadUrl)
if (input.dryRun) {
return {
dryRun: true,
utility: 'upload-video-part',
method: 'PUT',
endpoint: uploadUrl,
byteLength: getProvidedByteLength(input),
headers: { 'content-type': input.contentType ?? 'application/octet-stream' },
nextStep:
'Run with confirm: true, then pass the returned uploadedPartId to finalize-video-upload in uploadInstructions order.',
}
}
requireConfirm(
input.confirm,
'upload-video-part PUTs bytes to a LinkedIn pre-signed upload URL. Pass params.confirm = true only when you intend to upload media.',
)
const bytes = await resolveUploadBytes(input)
return uploadVideoPartBytes(uploadUrl, bytes, input.contentType)
}
export async function finalizeVideoUpload(input: FinalizeVideoUploadInput): Promise<JsonRecord> {
const video = requireVideoUrn(input.video, 'finalize-video-upload requires params.video.')
const uploadedPartIds = requireStringArray(
input.uploadedPartIds,
'finalize-video-upload requires params.uploadedPartIds.',
)
const payload = {
finalizeUploadRequest: {
video,
uploadToken: input.uploadToken ?? '',
uploadedPartIds,
},
}
if (input.dryRun) {
return {
dryRun: true,
utility: 'finalize-video-upload',
method: 'POST',
endpoint: 'https://api.linkedin.com/rest/videos?action=finalizeUpload',
requiredScope: 'w_member_social',
headers: linkedInRestHeadersPreview(),
payload,
nextStep: 'After LinkedIn finishes processing the video, pass the video URN to create-video-post.',
}
}
requireConfirm(
input.confirm,
'finalize-video-upload finalizes a LinkedIn video upload. Pass params.confirm = true only when all video parts are uploaded.',
)
try {
return linkedinRequest<JsonRecord>('/rest/videos', {
method: 'POST',
query: { action: 'finalizeUpload' },
restli: true,
linkedinVersion: LINKEDIN_VERSION,
body: payload,
})
} catch (error) {
throw enhancePostingError(error, 'finalize-video-upload')
}
}
export async function createVideoPost(input: CreateVideoPostInput): Promise<JsonRecord> {
const text = requireString(input.text, 'create-video-post requires params.text.')
const visibility = normalizeVisibility(input.visibility)
const author = await resolveAuthor(input.author)
if (input.videoUrn) {
return createVideoPostFromUrn({
utilityName: 'create-video-post',
text,
videoUrn: input.videoUrn,
visibility,
author,
title: stringValue(input.title),
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
dryRun: input.dryRun,
confirm: input.confirm,
})
}
if (input.dryRun) {
return {
dryRun: true,
utility: 'create-video-post',
requiredScope: 'w_member_social',
plannedSteps: [
'initialize /rest/videos upload',
'PUT video bytes to returned uploadInstructions URLs without Authorization',
'finalize /rest/videos upload with uploadedPartIds',
'create /rest/posts media post',
],
uploadSource: input.uploadFromUrl
? 'uploadFromUrl'
: input.uploadFromBytes !== undefined
? 'uploadFromBytes'
: null,
publishNote:
'Pass params.confirm = true only after explicit user approval to upload and publish this video.',
}
}
requireConfirm(
input.confirm,
'create-video-post uploads and publishes to LinkedIn. Pass params.confirm = true only after explicit user approval.',
)
const bytes = await resolveCreateVideoBytes(input)
const fileSizeBytes = input.fileSizeBytes ?? bytes.byteLength
if (fileSizeBytes !== bytes.byteLength) {
throw new Error('create-video-post params.fileSizeBytes must match the resolved video byte length.')
}
const registered = await registerVideoUpload({
owner: author,
fileSizeBytes,
uploadCaptions: input.uploadCaptions,
uploadThumbnail: input.uploadThumbnail,
confirm: true,
})
const registeredValue = asRecord(registered.value) ?? registered
const uploadInstructions = requireUploadInstructions(registeredValue.uploadInstructions)
const uploadedPartIds = await uploadVideoParts(uploadInstructions, bytes)
await finalizeVideoUpload({
video: requireVideoUrn(
registeredValue.video,
'LinkedIn initializeUpload response is missing value.video.',
),
uploadToken: stringValue(registeredValue.uploadToken) ?? '',
uploadedPartIds,
confirm: true,
})
return createVideoPostFromUrn({
utilityName: 'create-video-post',
text,
videoUrn: requireVideoUrn(
registeredValue.video,
'LinkedIn initializeUpload response is missing value.video.',
),
visibility,
author,
title: stringValue(input.title),
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
confirm: true,
})
}
export async function createPost(input: CreatePostInput): Promise<JsonRecord> {
const commentary = requireString(
input.commentary ?? input.text,
'create-post requires params.commentary or params.text.',
)
const visibility = normalizeVisibility(input.visibility)
const author = await resolveAuthor(input.author)
const payload = buildBasePostPayload({
author,
commentary,
visibility,
distribution: asRecord(input.distribution) ?? undefined,
content: asRecord(input.content) ?? undefined,
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
if (input.dryRun) {
return buildPostDryRun('create-post', payload)
}
requireConfirm(
input.confirm,
'create-post publishes to LinkedIn. Pass params.confirm = true only after explicit user approval.',
)
return createPostRequest('create-post', payload)
}
export function personUrnFromUserInfo(userInfo: LinkedInUserInfo): string {
const sub = requireString(userInfo.sub, 'LinkedIn userinfo is missing sub; cannot build person URN.')
return 'urn:li:person:' + sub
}
async function createPostRequest(utilityName: string, payload: JsonRecord): Promise<JsonRecord> {
try {
const result = await linkedinRequestWithResponse('/rest/posts', {
method: 'POST',
restli: true,
linkedinVersion: LINKEDIN_VERSION,
body: payload,
})
return {
utility: utilityName,
ok: result.ok,
status: result.status,
statusText: result.statusText,
postId: result.headers['x-restli-id'] ?? null,
body: result.body,
}
} catch (error) {
throw enhancePostingError(error, utilityName)
}
}
function buildTextPostPayload(input: {
author: string
commentary: string
visibility: LinkedInVisibility
isReshareDisabledByAuthor?: boolean
}): JsonRecord {
return buildBasePostPayload(input)
}
function buildArticleSharePayload(input: {
author: string
commentary: string
url: string
title: string
description: string
thumbnail: string
visibility: LinkedInVisibility
isReshareDisabledByAuthor?: boolean
}): JsonRecord {
const article: JsonRecord = {
source: input.url,
title: input.title,
description: input.description,
thumbnail: requireImageUrn(
input.thumbnail,
'create-article-post params.thumbnail must be a LinkedIn image URN.',
),
}
return buildBasePostPayload({
author: input.author,
commentary: input.commentary,
visibility: input.visibility,
content: {
article,
},
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
}
function buildImageSharePayload(input: {
author: string
commentary: string
imageUrn: string
title?: string
altText?: string
visibility: LinkedInVisibility
isReshareDisabledByAuthor?: boolean
}): JsonRecord {
const media: JsonRecord = {
id: input.imageUrn,
}
if (input.title) media.title = input.title
if (input.altText) media.altText = input.altText
return buildBasePostPayload({
author: input.author,
commentary: input.commentary,
visibility: input.visibility,
content: {
media,
},
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
}
function buildVideoSharePayload(input: {
author: string
commentary: string
videoUrn: string
title?: string
visibility: LinkedInVisibility
isReshareDisabledByAuthor?: boolean
}): JsonRecord {
const media: JsonRecord = {
id: input.videoUrn,
}
if (input.title) media.title = input.title
return buildBasePostPayload({
author: input.author,
commentary: input.commentary,
visibility: input.visibility,
content: {
media,
},
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
}
async function createVideoPostFromUrn(input: {
utilityName: string
text: string
videoUrn: string
visibility: LinkedInVisibility
author: string
title?: string
isReshareDisabledByAuthor?: boolean
dryRun?: boolean
confirm?: boolean
}): Promise<JsonRecord> {
const videoUrn = requireVideoUrn(
input.videoUrn,
'create-video-post requires params.videoUrn to be a LinkedIn video URN.',
)
const payload = buildVideoSharePayload({
author: input.author,
commentary: input.text,
videoUrn,
title: input.title,
visibility: input.visibility,
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor,
})
if (input.dryRun) {
return buildPostDryRun(input.utilityName, payload)
}
requireConfirm(
input.confirm,
'create-video-post publishes to LinkedIn. Pass params.confirm = true only after explicit user approval.',
)
return createPostRequest(input.utilityName, payload)
}
function buildBasePostPayload(input: {
author: string
commentary: string
visibility: LinkedInVisibility
distribution?: JsonRecord
content?: JsonRecord
isReshareDisabledByAuthor?: boolean
}): JsonRecord {
const payload: JsonRecord = {
author: input.author,
commentary: input.commentary,
visibility: input.visibility,
distribution: input.distribution ?? buildMainFeedDistribution(),
lifecycleState: 'PUBLISHED',
isReshareDisabledByAuthor: input.isReshareDisabledByAuthor ?? false,
}
if (input.content) payload.content = input.content
return payload
}
function buildMainFeedDistribution(): JsonRecord {
return {
feedDistribution: 'MAIN_FEED',
targetEntities: [],
thirdPartyDistributionChannels: [],
}
}
function buildPostDryRun(utility: string, payload: JsonRecord): JsonRecord {
return {
dryRun: true,
utility,
method: 'POST',
endpoint: 'https://api.linkedin.com/rest/posts',
requiredScope: 'w_member_social',
headers: linkedInRestHeadersPreview(),
payload,
publishNote: 'Pass params.confirm = true only after explicit user approval to publish this post.',
}
}
async function resolveAuthor(author?: string): Promise<string> {
if (author) return requirePersonUrn(author, 'params.author')
return (await getPersonUrn()).personUrn
}
async function resolveCreateVideoBytes(input: CreateVideoPostInput): Promise<ArrayBuffer> {
if (input.uploadFromBytes !== undefined) {
return bytesFromUnknown(input.uploadFromBytes, 'params.uploadFromBytes')
}
if (input.uploadFromUrl) return bytesFromUrl(input.uploadFromUrl)
throw new Error(
'create-video-post requires params.videoUrn, params.uploadFromBytes, or params.uploadFromUrl.',
)
}
async function resolveUploadBytes(input: UploadVideoPartInput): Promise<ArrayBuffer> {
if (input.bytes !== undefined) return bytesFromUnknown(input.bytes, 'params.bytes')
if (input.bytesBase64) return bytesFromBase64(input.bytesBase64)
if (input.uploadFromUrl) return bytesFromUrl(input.uploadFromUrl)
throw new Error('upload-video-part requires params.bytes, params.bytesBase64, or params.uploadFromUrl.')
}
async function bytesFromUrl(url: string): Promise<ArrayBuffer> {
const parsed = new URL(requireUrl(url, 'Video upload URL source must be a valid URL.'))
if (parsed.protocol !== 'https:') {
throw new Error('Video upload URL source must use https.')
}
const response = await fetch(parsed.toString())
if (!response.ok) {
throw new Error('Failed to fetch video bytes: ' + response.status + ' ' + response.statusText)
}
return response.arrayBuffer()
}
async function imageBytesFromUrl(
url: string,
): Promise<{ bytes: ArrayBuffer; contentType: string }> {
const parsed = new URL(requireUrl(url, 'Image upload URL source must be a valid URL.'))
if (parsed.protocol !== 'https:') {
throw new Error('Image upload URL source must use https.')
}
const response = await fetch(parsed.toString())
if (!response.ok) {
throw new Error('Failed to fetch image bytes: ' + response.status + ' ' + response.statusText)
}
const contentType = String(response.headers.get('content-type') || '')
.split(';')[0]
.trim()
.toLowerCase()
if (!contentType.startsWith('image/')) {
throw new Error(
'Image upload URL source must return an image content type, received ' +
(contentType || 'unknown') +
'.',
)
}
return {
bytes: await response.arrayBuffer(),
contentType,
}
}
function bytesFromUnknown(value: unknown, label: string): ArrayBuffer {
if (value instanceof ArrayBuffer) return value
if (ArrayBuffer.isView(value)) {
return value.buffer.slice(value.byteOffset, value.byteOffset + value.byteLength)
}
if (Array.isArray(value)) {
return new Uint8Array(value.map((item) => requireByte(item, label))).buffer
}
if (typeof value === 'string') {
return value.startsWith('data:') ? bytesFromDataUrl(value) : bytesFromBase64(value)
}
throw new Error(label + ' must be an ArrayBuffer, byte array, base64 string, or data URL.')
}
function getProvidedByteLength(input: UploadVideoPartInput): number | null {
if (input.bytes !== undefined) return bytesFromUnknown(input.bytes, 'params.bytes').byteLength
if (input.bytesBase64) return bytesFromBase64(input.bytesBase64).byteLength
return null
}
function bytesFromDataUrl(value: string): ArrayBuffer {
const commaIndex = value.indexOf(',')
if (commaIndex === -1) {
throw new Error('Data URL video bytes are missing a comma separator.')
}
return bytesFromBase64(value.slice(commaIndex + 1))
}
function bytesFromBase64(value: string): ArrayBuffer {
const binary = atob(value)
const bytes = new Uint8Array(binary.length)
for (let index = 0; index < binary.length; index += 1) {
bytes[index] = binary.charCodeAt(index)
}
return bytes.buffer
}
function requireByte(value: unknown, label: string): number {
if (typeof value !== 'number' || !Number.isInteger(value) || value < 0 || value > 255) {
throw new Error(label + ' byte arrays must contain integers from 0 through 255.')
}
return value
}
async function uploadVideoParts(
instructions: VideoUploadInstruction[],
bytes: ArrayBuffer,
): Promise<string[]> {
const uploadedPartIds: string[] = []
for (const instruction of instructions) {
if (instruction.lastByte >= bytes.byteLength) {
throw new Error('LinkedIn upload instruction byte range exceeds the provided video byte length.')
}
const partBytes = bytes.slice(instruction.firstByte, instruction.lastByte + 1)
const result = await uploadVideoPartBytes(instruction.uploadUrl, partBytes)
uploadedPartIds.push(requireString(result.uploadedPartId, 'LinkedIn upload response did not include an ETag.'))
}
return uploadedPartIds
}
async function uploadVideoPartBytes(
uploadUrl: string,
bytes: ArrayBuffer,
contentType = 'application/octet-stream',
): Promise<JsonRecord> {
const response = await fetch(requireLinkedInUploadUrl(uploadUrl), {
method: 'PUT',
headers: {
'content-type': contentType,
},
body: bytes,
})
const text = await response.text()
const etag = response.headers.get('etag')
if (!response.ok) {
throw new LinkedInApiError(
'LinkedIn video part upload failed: ' + response.status + ' ' + response.statusText,
{
status: response.status,
statusText: response.statusText,
details: text,
},
)
}
return {
ok: response.ok,
status: response.status,
statusText: response.statusText,
etag,
uploadedPartId: normalizeEtag(etag),
}
}
function requirePersonUrn(value: string, label: string): string {
const urn = requireString(value, label + ' must be a LinkedIn person URN.')
if (!urn.startsWith('urn:li:person:')) {
throw new Error(label + ' must start with urn:li:person:.')
}
return urn
}
function requireVideoUrn(value: unknown, message: string): string {
const videoUrn = requireString(value, message)
if (!videoUrn.startsWith('urn:li:video:')) {
throw new Error(message)
}
return videoUrn
}
function requireImageUrn(value: unknown, message: string): string {
const imageUrn = requireString(value, message)
if (!imageUrn.startsWith('urn:li:image:')) {
throw new Error(message)
}
return imageUrn
}
function requirePostUrn(value: unknown): string {
const postUrn = requireString(value, 'delete-post requires params.postUrn.')
if (!postUrn.startsWith('urn:li:share:') && !postUrn.startsWith('urn:li:ugcPost:')) {
throw new Error('delete-post params.postUrn must be a LinkedIn share or ugcPost URN.')
}
return postUrn
}
function requirePositiveInteger(value: unknown, message: string): number {
if (typeof value !== 'number' || !Number.isSafeInteger(value) || value <= 0) {
throw new Error(message)
}
return value
}
function requireStringArray(value: unknown, message: string): string[] {
if (!Array.isArray(value) || value.length === 0) {
throw new Error(message)
}
return value.map((item) => requireString(item, message))
}
function requireUploadInstructions(value: unknown): VideoUploadInstruction[] {
if (!Array.isArray(value) || value.length === 0) {
throw new Error('LinkedIn initializeUpload response did not include uploadInstructions.')
}
return value.map((item) => {
const record = asRecord(item)
if (!record) {
throw new Error('LinkedIn uploadInstructions must be objects.')
}
return {
...record,
uploadUrl: requireLinkedInUploadUrl(record.uploadUrl),
firstByte: requireNonNegativeInteger(
record.firstByte,
'LinkedIn upload instruction is missing firstByte.',
),
lastByte: requireNonNegativeInteger(
record.lastByte,
'LinkedIn upload instruction is missing lastByte.',
),
}
})
}
function requireNonNegativeInteger(value: unknown, message: string): number {
if (typeof value !== 'number' || !Number.isSafeInteger(value) || value < 0) {
throw new Error(message)
}
return value
}
function requireLinkedInUploadUrl(value: unknown): string {
const uploadUrl = requireUrl(value, 'LinkedIn upload URL must be a valid URL.')
const parsed = new URL(uploadUrl)
if (parsed.origin !== LINKEDIN_UPLOAD_ORIGIN) {
throw new Error('LinkedIn video upload URLs must use https://www.linkedin.com.')
}
return parsed.toString()
}
function requireConfirm(confirm: unknown, message: string): void {
if (confirm !== true) {
throw new Error(message)
}
}
function enhancePostingError(error: unknown, utilityName: string): Error {
if (error instanceof LinkedInApiError && (error.status === 401 || error.status === 403)) {
return new LinkedInApiError(
utilityName +
' failed with LinkedIn auth/scope status ' +
error.status +
'. Confirm the access token is current and the LinkedIn app has the Share on LinkedIn product with w_member_social granted. Reconnect at https://kody.codes/connect/oauth?provider=linkedin.',
{
status: error.status,
statusText: error.statusText,
details: error.details,
},
)
}
return error instanceof Error ? error : new Error(String(error))
}
function normalizeVisibility(value: unknown): LinkedInVisibility {
const visibility = value === undefined ? 'PUBLIC' : requireString(value, 'visibility must be a string.')
if (visibility === 'PUBLIC' || visibility === 'CONNECTIONS' || visibility === 'LOGGED_IN') {
return visibility
}
throw new Error('visibility must be PUBLIC, CONNECTIONS, or LOGGED_IN.')
}
function requireUrl(value: unknown, message: string): string {
const url = requireString(value, message)
try {
return new URL(url).toString()
} catch {
throw new Error(message)
}
}
function requireString(value: unknown, message: string): string {
if (typeof value !== 'string' || value.length === 0) {
throw new Error(message)
}
return value
}
function normalizeEtag(value: string | null): string | null {
if (!value) return null
return value.replace(/^\"|\"$/g, '')
}
function stringValue(value: unknown): string | undefined {
return typeof value === 'string' && value.length > 0 ? value : undefined
}
function asRecord(value: unknown): JsonRecord | null {
if (value && typeof value === 'object' && !Array.isArray(value)) {
return value as JsonRecord
}
return null
}