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This commit is contained in:
Christian Schabesberger
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# Prepare everything
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Welcome to the NewPipe tutorial. This tutorial will guide you through the process of creating your own NewPipeExtractor
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service with which NewPipe will gain support for a dedicated streaming service like YouTube, Vimeo or SournCloud. Let's
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service with which NewPipe will gain support for a dedicated streaming service like YouTube, Vimeo or SoundCloud. Let's
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dive right in. ;D
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## Setup your dev environment
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@ -23,14 +23,14 @@ First and foremost you need to meet certain conditions in order to write your ow
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- __[java 8](https://www.java.com/en/download/faq/java8.xml)__
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- __[gradle](https://gradle.org/)__
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- __[unit testing](https://junit.org/junit5/)__
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- I highly recomend [IDEA Community](https://www.jetbrains.com/idea/) since it has everything we need.
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- A __[github](https://github.com/)__ account
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- A loot of patience and excitement ;D
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- I highly recommend [IDEA Community](https://www.jetbrains.com/idea/) since it has everything we need.
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- A __[Github](https://github.com/)__ account
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- A lot of patience and excitement ;D
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After making sure all these conditions are provided fork the [NewPipeExtractor](https://github.com/TeamNewPipe/NewPipeExtractor),
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using the [fork button](https://github.com/TeamNewPipe/NewPipeExtractor#fork-destination-box).
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This way you have your own working repository. Now clone this repository into your local folder in which you want to work in.
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Next import the cloned project into your [ide](https://www.jetbrains.com/help/idea/configuring-projects.html#importing-project)
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Next import the cloned project into your [IDE](https://www.jetbrains.com/help/idea/configuring-projects.html#importing-project)
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and [run](https://www.jetbrains.com/help/idea/performing-tests.html) it.
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If all the checks are green you did everything right, and you are good to go to move on to the next chapter.
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@ -5,7 +5,7 @@
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Before we can start coding our own service we need to understand the basic concept of the extractor. There is a pattern
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you will find all over the code. It is called the __extractor/collector__ pattern. The idea behind it is that
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the [extractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/Extractor.html)
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would produce single peaces of data, and the collector would take it and form usable data for the front end out of it.
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would produce single pieces of data, and the collector would take it and form usable data for the front end out of it.
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The collector also controls the parsing process, and takes care about error handling. So if the extractor fails at any
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point the collector will decide whether it should continue parsing or not. This requires the extractor to be made out of
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many small methods. One method for every data field the collector wants to have. The collectors are provided by NewPipe.
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@ -99,7 +99,7 @@ When a website shows a long list of items it usually does not load the whole lis
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This is why a list in NewPipe lists are chopped down into smaller lists called [InfoItemsPage](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/ListExtractor.InfoItemsPage.html)s. Each page has its own URL, and needs to be extracted separately.
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Additional metainformation about the list such as it's title a thumbnail
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Additional metainformation about the list such as its title a thumbnail
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or its creator, and extracting multiple pages can be handled by a
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[ListExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/ListExtractor.html),
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and it's [ListExtractor.InfoItemsPage](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/ListExtractor.InfoItemsPage.html).
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@ -115,7 +115,7 @@ such as:
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returns a ListExtractor.InfoItemsPage by its URL which was retrieved by the `getNextPageUrl()` method of the previous page.
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The reason why the first page is handled speciall is because many Websites such as Youtube will load the first page of
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The reason why the first page is handled special is because many Websites such as YouTube will load the first page of
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items like a regular webpage, but all the others as AJAX request.
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@ -2,12 +2,12 @@
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[LinkHandler](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/LinkHandler.html)
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represent Links to resources like videos, search requests, channels, etc.
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The idea behind them is that a video can have multiple links pointig to it, but it has
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one unique id that represents it, like this example:
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The idea behind them is that a video can have multiple links pointing to it, but it has
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one unique ID that represents it, like this example:
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[oHg5SJYRHA0](https://www.youtube.com/watch?v=oHg5SJYRHA0) can be represented as:
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- https://www.youtube.com/watch?v=oHg5SJYRHA0 (default url for youtube)
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- https://www.youtube.com/watch?v=oHg5SJYRHA0 (default URL for YouTube)
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- https://youtu.be/oHg5SJYRHA0
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- https://m.youtube.com/watch?v=oHg5SJYRHA0
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@ -16,12 +16,12 @@ one unique id that represents it, like this example:
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- `LinkHandler` are ReadOnly
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- LinkHandler are also used to determine which part of the extractor can handle a certain link.
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- In order to get one you must either call
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[fromUrl()](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/LinkHandlerFactory.html#fromUrl-java.lang.String-) or [fromId()](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/LinkHandlerFactory.html#fromId-java.lang.String-) of the the coresponding `LinkHandlerFactory`.
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[fromUrl()](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/LinkHandlerFactory.html#fromUrl-java.lang.String-) or [fromId()](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/LinkHandlerFactory.html#fromId-java.lang.String-) of the the corresponding `LinkHandlerFactory`.
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- Every type of Type of Resource has its own LinkHandlerFactory. Eg. YoutubeStreamLinkHandler, YoutubeChannelLinkHandler, etc.
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### Usage
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So the typical Usage for getting a LinkHandler would look like this.
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So the typical usage for getting a LinkHandler would look like this.
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```java
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LinkHandlerFactory myLinkHandlerFactory = new MyStreamLinkHandlerFactory();
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LinkHandler myVideo = myLinkHandlerFactory.fromUrl("https://my.service.com/the_video");
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@ -29,19 +29,19 @@ LinkHandler myVideo = myLinkHandlerFactory.fromUrl("https://my.service.com/the_v
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### Implementation
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In order to Use LinkHandler for your service you must override the apropriate LinkHandlerFactory. eg:
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In order to Use LinkHandler for your service you must override the appropriate LinkHandlerFactory. eg:
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```java
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class MyStreamLinkHandlerFactory extends LinkHandlerFactory {
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@Override
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public String getId(String url) throws ParsingException {
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// Return the ID based on the url.
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// Return the ID based on the URL.
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}
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@Override
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public String getUrl(String id) throws ParsingException {
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// Return the url based on the id given.
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// Return the URL based on the ID given.
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}
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@Override
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@ -1,11 +1,20 @@
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# Implement a service
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Services or better service connectors are the parts of NewPipe which communicative with an actual service like YouTube.
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This Page will describe how you can implement and add your own. Please make sure you red and understand the
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This Page will describe how you can implement and add your own. Please make sure you read and understand the
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[Concept of Extractors](https://teamnewpipe.github.io/documentation/01_Concept_of_the_extractor/)
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and the [Concept of LinkHandler](https://teamnewpipe.github.io/documentation/02_Concept_of_LinkHandler/)
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before implementing your own Service.
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__The parts of a service:__
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- [Head of Service](#head-of-service)
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- [Stream](#stream)
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- [Search](#search)
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- [Channel](#channel) _(optional)_
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- [Playlist](#playlist) _(optional)_
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- [Kiosk](#kiosk) _(optional)_
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### Allowed Libraries
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The NewPipe Extractor already comes a long with a lot of usable tools and external libraries that should make extracting easy.
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Every service has an ID, which will be set when this list gets created. You set this Id by entering it in the constructor.
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So when adding your service just give it the ID of the previously last service in the list incremented by one.
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### Search
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- [SearchExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/search/SearchExtractor.html)
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- [SearchQueryHandlerFactory](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/SearchQueryHandlerFactory.html)
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### Stream
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- [StreamExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/stream/StreamExtractor.html)
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- [StreamInfoItemExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/stream/StreamInfoItemExtractor.html)
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- [LinkHandlerFactory](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/LinkHandlerFactory.html)
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### Search
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- [SearchExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/search/SearchExtractor.html)
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- [SearchQueryHandlerFactory](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/linkhandler/SearchQueryHandlerFactory.html)
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- [SuggestionExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/SuggestionExtractor.html) _(optional)_
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### Channel
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- [ChannelExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/channel/ChannelExtractor.html)
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- [ChannelInfoItemExtractor](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/channel/ChannelExtractor.html)
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@ -28,7 +28,7 @@ marven *.jar packages for android and java based on a github or gitlab repositor
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To the extractor through jitpack, you need to push them to your online repository of
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your copy that you host either on [github](https://github.com) or [gitlab](https://gitlab.com). It's important to host
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it on one of both. Now copy your repository url in Http format, go to [jitpack](https://jitpack.io/), and past it there
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From here you can grap the latest commit via `GET IT` button.
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From here you can grab the latest commit via `GET IT` button.
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I recomend not to use SNAPSHOT, since I am not sure when snapshot is build. An "implementation" string will be generated
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for you. Copy this string and replace the `implementation 'com.github.TeamNewPipe:NewPipeExtractor:<commit>'` line in
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the file [/app/build.gradle](https://github.com/TeamNewPipe/NewPipe/blob/dev/app/build.gradle#L58) with it.
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# Welcome to the NewPipe Documentaiton.
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# Welcome to the NewPipe Documentation.
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This side is/should be a beginner friendly tutorial and documentation for people who want to use, or write services for the [NewPipe Extractor](https://github.com/TeamNewPipe/NewPipeExtractor).
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It is an addition to our auto generated [jdoc documentation](https://teamnewpipe.github.io/NewPipeExtractor/javadoc/).
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## Introduction
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The NewPipeExtractor is a Java framework for scraping video platform websites in a way that they can be accedes like a normal API. The extractor is the core of the popular Youtube and streaming App [NewPipe](https://newpipe.schabi.org) for android, however it's system independent and also available for other platforms.
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The NewPipeExtractor is a Java framework for scraping video platform websites in a way that they can be accedes like a normal API. The extractor is the core of the popular YouTube and streaming App [NewPipe](https://newpipe.schabi.org) for android, however it's system independent and also available for other platforms.
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The beauty behind this framework is it takes care about the extraction process, error handling etc., so you can take care about what is important: Scraping the website.
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It focuses on making it possible for the creator of a scraper for a streaming service to create best outcome by least amount of written code.
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