chore: fix json formatting in notes
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ThetaDev
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1 changed files with 66 additions and 58 deletions
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@ -3,27 +3,29 @@
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When YouTube introduces a new feature, it does so gradually. When a user creates a new
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session, YouTube decided randomly which new features should be enabled.
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YouTube sessions are identified by the visitor data cookie. This cookie is sent with every
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API request using the `context.client.visitor_data` JSON parameter. It is also returned in the
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`responseContext.visitorData` response parameter and stored as the `__SECURE-YEC` cookie.
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YouTube sessions are identified by the visitor data cookie. This cookie is sent with
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every API request using the `context.client.visitor_data` JSON parameter. It is also
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returned in the `responseContext.visitorData` response parameter and stored as the
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`__SECURE-YEC` cookie.
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By sending the same visitor data cookie, A/B tests can be reproduced, which is important for testing
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alternative YouTube clients.
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By sending the same visitor data cookie, A/B tests can be reproduced, which is important
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for testing alternative YouTube clients.
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This page lists all A/B tests that were encountered while maintaining the RustyPipe client.
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This page lists all A/B tests that were encountered while maintaining the RustyPipe
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client.
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**Impact rating:**
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The impact ratings shows how much effort it takes to adapt alternative YouTube clients to the
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new feature.
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The impact ratings shows how much effort it takes to adapt alternative YouTube clients
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to the new feature.
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- 🟢 **Low** Minor incompatibility (e.g. parameter name change)
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- 🟡 **Medium** Extensive changes to the response data model OR removal of parameters
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- 🔴 **High** Changes to the functionality of YouTube that will require API changes
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for alternative clients
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- 🔴 **High** Changes to the functionality of YouTube that will require API changes for
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alternative clients
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If you want to check how often these A/B tests occur, you can use the `codegen` tool with the
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following command: `rustypipe-codegen ab-test <id>`.
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If you want to check how often these A/B tests occur, you can use the `codegen` tool
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with the following command: `rustypipe-codegen ab-test <id>`.
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## [1] Attributed text description
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@ -33,17 +35,18 @@ following command: `rustypipe-codegen ab-test <id>`.
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YouTube shows internal links (channels, videos, playlists) in the video description
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as buttons with the YouTube icon. To accomplish this, they completely changed the underlying
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data model.
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YouTube shows internal links (channels, videos, playlists) in the video description as
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buttons with the YouTube icon. To accomplish this, they completely changed the
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underlying data model.
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The new format uses a string with the entire plaintext content along with a list of `"commandRuns"`
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which include the link data and the position of the links within the text.
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The new format uses a string with the entire plaintext content along with a list of
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`"commandRuns"` which include the link data and the position of the links within the
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text.
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Note that the position and length parameter refer to the number of UTF-16 characters. If
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you are implementing this in a language which does not use UTF-16 as its internal string
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representation, you have to iterate over the unicode codepoints and keep track of the UTF-16
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index seperately.
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representation, you have to iterate over the unicode codepoints and keep track of the
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UTF-16 index seperately.
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**OLD**
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@ -124,14 +127,15 @@ index seperately.
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YouTube changed their channel page layout, putting livestreams and short videos into
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separate tabs.
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Fetching the videos page now only returns a subset of a channel's videos. To get all videos
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from a channel, you would have to run up to 3 queries.
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Fetching the videos page now only returns a subset of a channel's videos. To get all
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videos from a channel, you would have to run up to 3 queries.
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Even though it has its disadvantages, the RSS feed is now probably the best way for keeping
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track of a channel's new uploads.
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Even though it has its disadvantages, the RSS feed is now probably the best way for
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keeping track of a channel's new uploads.
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Additionally the channel tab response model was slightly changed, now using a `"RichGridRenderer"`.
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Short videos also have their own data models (`"reelItemRenderer"`).
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Additionally the channel tab response model was slightly changed, now using a
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`"RichGridRenderer"`. Short videos also have their own data models
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(`"reelItemRenderer"`).
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**RichGrid**
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@ -273,8 +277,8 @@ Note that channels without handles still use the old data model, even on the sam
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- **Impact:** 🟢 Low
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- **Endpoint:** browse (trending videos)
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YouTube moved the list of trending videos from the main *trending* page to a
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separate tab (Videos).
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YouTube moved the list of trending videos from the main _trending_ page to a separate
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tab (Videos).
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The video tab is fetched with the params `4gIOGgxtb3N0X3BvcHVsYXI%3D`.
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@ -302,43 +306,47 @@ YouTube changed the header renderer type on the trending page to a `pageHeaderRe
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**OLD**
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```json
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"c4TabbedHeaderRenderer": {
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"avatar": {
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"thumbnails": [
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{
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"height": 100,
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"url": "https://www.youtube.com/img/trending/avatar/trending_avatar.png",
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"width": 100
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}
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]
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},
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"title": "Trending",
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"trackingParams": "CBAQ8DsiEwiXi_iUht76AhVM6hEIHfgTB2g="
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{
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"c4TabbedHeaderRenderer": {
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"avatar": {
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"thumbnails": [
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{
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"height": 100,
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"url": "https://www.youtube.com/img/trending/avatar/trending_avatar.png",
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"width": 100
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}
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]
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},
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"title": "Trending",
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"trackingParams": "CBAQ8DsiEwiXi_iUht76AhVM6hEIHfgTB2g="
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}
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}
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```
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**NEW**
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```json
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"pageHeaderRenderer": {
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"pageTitle": "Trending",
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"content": {
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"pageHeaderViewModel": {
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"title": {
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"dynamicTextViewModel": { "text": { "content": "Trending" } }
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},
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"image": {
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"contentPreviewImageViewModel": {
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"image": {
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"sources": [
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{
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"url": "https://www.youtube.com/img/trending/avatar/trending.png",
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"width": 100,
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"height": 100
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}
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]
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},
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"style": "CONTENT_PREVIEW_IMAGE_STYLE_CIRCLE"
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{
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"pageHeaderRenderer": {
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"pageTitle": "Trending",
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"content": {
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"pageHeaderViewModel": {
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"title": {
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"dynamicTextViewModel": { "text": { "content": "Trending" } }
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},
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"image": {
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"contentPreviewImageViewModel": {
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"image": {
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"sources": [
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{
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"url": "https://www.youtube.com/img/trending/avatar/trending.png",
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"width": 100,
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"height": 100
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}
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]
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},
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"style": "CONTENT_PREVIEW_IMAGE_STYLE_CIRCLE"
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}
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}
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}
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}
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