A Go library & cli for the undocumented crunchyroll api.
You surely need a crunchyroll premium account to get full (api) access.
CLI 🖥️ • Library 📚 • Credits 🙏 • License ⚖
- Download single videos and entire series from crunchyroll
- 📥 Download the latest binaries here or get it from below
- 🛠 Build it yourself
- use
make(requiresgoto be installed)
$ git clone https://github.com/ByteDream/crunchyroll-go $ cd crunchyroll-go $ make- use
go
$ git clone https://github.com/ByteDream/crunchyroll-go $ cd crunchyroll-go/cmd/crunchyroll-go $ go build -o crunchy - use
Before you can do something, you have to login first.
This can be performed via crunchyroll account email and password
$ crunchy login [email protected] password
or via session id
$ crunchy login --session-id 8e9gs135defhga790dvrf2i0eris8gts
With the cli you can download single videos or entire series.
By default the cli tries to download the episode with your system language as audio. If no streams with your system language are available, the video will be downloaded with japanese audio and hardsubbed subtitles in your system language. If your system language is not supported, an error message will be displayed and en-US (american english) will be chosen as language.
$ crunchy download https://www.crunchyroll.com/darling-in-the-franxx/episode-1-alone-and-lonesome-759575
With -r best the video(s) will have the best available resolution (mostly 1920x1080 / Full HD).
$ crunchy download -r best https://www.crunchyroll.com/darling-in-the-franxx/episode-1-alone-and-lonesome-759575
The file is by default saved as a .ts (mpeg transport stream) file.
.ts files may can't be played or are looking very weird (it depends on the video player you are using).
With the -o flag, you can change the name (and file ending) of the output file.
So if you want to save it as, for example, mp4 file, just name it whatever.mp4.
You need ffmpeg to store the video in other file formats.
$ crunchy download -o "daaaaaaaaaaaaaaaarling.ts" https://www.crunchyroll.com/darling-in-the-franxx/episode-1-alone-and-lonesome-759575
With the --audio flag you can specify which audio the video should have and with --subtitle which subtitle it should have.
Type crunchy help download to see all available locales.
$ crunchy download --audio ja-JP --subtitle de-DE https://www.crunchyroll.com/darling-in-the-franxx
-
--audio» forces audio of the video(s) -
--subtitle» forces subtitle of the video(s) -
--no-hardsub» forces that the subtitles are stored as a separate file and are not directly embedded into the video -
-d,--directory» directory to download the video(s) to -
-o,--output» name of the output file -
-r,--resolution» the resolution of the video(s).bestfor best resolution,worstfor worst -
--alternative-progress» shows an alternative, not so user-friendly progress instead of the progress bar
- General help
$ crunchy help - Login help
$ crunchy help login - Download help
$ crunchy help download
These flags you can use across every sub-command
-
-q,--quiet» disables all output -
-v,--verbote» shows additional debug output -
--color» adds color to the output (works only on not windows systems) -
-p,--proxy» use a proxy to hide your ip / redirect your traffic -
-l,--locale» the language to display video specific things like the title. default is your system language
Download the library via go get
$ go get github.com/ByteDream/crunchyroll-go
func main() {
// login with credentials
crunchy, err := crunchyroll.LoginWithCredentials("[email protected]", "password", crunchyroll.US, http.DefaultClient)
if err != nil {
panic(err)
}
// finds a series or movie by a crunchyroll link
video, err := crunchy.FindVideo("https://www.crunchyroll.com/darling-in-the-franxx")
if err != nil {
panic(err)
}
series := video.(*crunchyroll.Series)
seasons, err := series.Seasons()
if err != nil {
panic(err)
}
fmt.Printf("Found %d seasons for series %s\n", len(seasons), series.Title)
// search `Darling` and return 20 results
series, movies, err := crunchy.Search("Darling", 20)
if err != nil {
panic(err)
}
fmt.Printf("Found %d series and %d movies for query `Darling`\n", len(series), len(movies))
}func main() {
crunchy, err := crunchyroll.LoginWithSessionID("8e9gs135defhga790dvrf2i0eris8gts", crunchyroll.US, http.DefaultClient)
if err != nil {
panic(err)
}
// returns an episode slice with all episodes which are matching the given url.
// the episodes in the returning slice differs from the underlying streams, but are all pointing to the first ditf episode
episodes, err := crunchy.FindEpisode("https://www.crunchyroll.com/darling-in-the-franxx/episode-1-alone-and-lonesome-759575")
if err != nil {
panic(err)
}
fmt.Printf("Found %d episodes\n", len(episodes))
}Because of the apis structure, it can lead very fast much redundant code for simple tasks, like getting all episodes
with japanese audio and german subtitle. For this case and some other, the api has a utility called Structure in its utils.
func main() {
crunchy, err := crunchyroll.LoginWithCredentials("[email protected]", "password", crunchyroll.US, http.DefaultClient)
if err != nil {
panic(err)
}
// search `Darling` and return 20 results (series and movies) or less
series, movies, err := crunchy.Search("Darling", 20)
if err != nil {
panic(err)
}
fmt.Printf("Found %d series and %d movies for search query `Darling`\n", len(series), len(movies))
seasons, err := series[0].Seasons()
if err != nil {
panic(err)
}
// in the crunchyroll.utils package, you find some structs which can be used to simplify tasks.
// you can recursively search all underlying content
seriesStructure := utils.NewSeasonStructure(seasons)
// this returns every format of all the above given seasons
formats, err := seriesStructure.Formats()
if err != nil {
panic(err)
}
fmt.Printf("Found %d formats\n", len(formats))
filteredFormats, err := seriesStructure.FilterFormatsByLocales(crunchyroll.JP, crunchyroll.DE, true)
if err != nil {
panic(err)
}
fmt.Printf("Found %d formats with japanese audio and hardsubbed german subtitles\n", len(filteredFormats))
// reverse sorts the formats after their resolution by calling a sort type which is also defined in the api utils
// and stores the format with the highest resolution in a variable
sort.Sort(sort.Reverse(utils.FormatsByResolution(filteredFormats)))
format := formats[0]
// get the episode from which the format is a child
episode, err := seriesStructure.FilterEpisodeByFormat(format)
if err != nil {
panic(err)
}
file, err := os.Create(fmt.Sprintf("%s.ts", episode.Title))
if err != nil {
panic(err)
}
// download the format to the file
if err := format.Download(file, nil); err != nil {
panic(err)
}
fmt.Printf("Downloaded %s with %s resolution and %.2f fps as %s\n", episode.Title, format.Video.Resolution, format.Video.FPS, file.Name())
// for more useful structure function just let your IDE's autocomplete make its thing
}As you can see in the example above, most of the crunchyroll.utils Structure functions are returning errors. There is
a build-in functionality with are avoiding causing the most errors and let you safely ignore them as well.
Note that errors still can appear
func main() {
crunchy, err := crunchyroll.LoginWithCredentials("[email protected]", "password", crunchyroll.US, http.DefaultClient)
if err != nil {
panic(err)
}
foundEpisodes, err := crunchy.FindEpisode("https://www.crunchyroll.com/darling-in-the-franxx/episode-1-alone-and-lonesome-759575")
if err != nil {
panic(err)
}
episodeStructure := utils.NewEpisodeStructure(foundEpisodes)
// this function recursively calls all api endpoints, receives everything and stores it in memory,
// so that after executing this, no more request to the crunchyroll server has to be made.
// note that it could cause much network load while running this method.
//
// you should check the InitAllState before, because InitAll could have been already called or
// another function has the initialization as side effect and re-initializing everything
// will change every pointer in the struct which can cause massive problems afterwards.
if !episodeStructure.InitAllState() {
if err := episodeStructure.InitAll(); err != nil {
panic(err)
}
}
formats, _ := episodeStructure.Formats()
streams, _ := episodeStructure.Streams()
episodes, _ := episodeStructure.Episodes()
fmt.Printf("Initialized %d formats, %d streams and %d episodes\n", len(formats), len(streams), len(episodes))
}You can also run test to see if the api works correctly.
Before doing this, make sure to either set your crunchyroll email and password or sessions as environment variable.
The email variable has to be named EMAIL and the password variable PASSWORD. If you want to use your session id, the variable must be named SESSION_ID.
You can run the test via make
$ make test
or via go directly
$ go test .
- Extracted all api endpoints and the login process from this
- Decrypting mpeg stream files
This project is licensed under the GNU Lesser General Public License v3.0 (LGPL-3.0) - see the LICENSE file for more details.
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