Programming language: Go
License: MIT License
Tags: Third-party APIs    

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go-myanimelist is a Go client library for accessing the MyAnimeList API v2.

Project Status

The project has been updated to support MyAnimeList API v2.

As of March 2017, this package is featured in awesome-go.


This package can be installed using:

go get github.com/nstratos/go-myanimelist/mal


Import the package using:

import "github.com/nstratos/go-myanimelist/mal"

First construct a new mal client:

c := mal.NewClient(nil)

Then use one of the client's services (User, Anime, Manga and Forum) to access the different MyAnimeList API methods.


When creating a new client, pass an http.Client that can handle authentication for you.

Accessing publicly available information

To access public information, you need to add the X-MAL-CLIENT-ID header in your requests. You can achieve this by creating an http.Client with a custom transport and use it as shown below:

type clientIDTransport struct {
    Transport http.RoundTripper
    ClientID  string

func (c *clientIDTransport) RoundTrip(req *http.Request) (*http.Response, error) {
    if c.Transport == nil {
        c.Transport = http.DefaultTransport
    req.Header.Add("X-MAL-CLIENT-ID", c.ClientID)
    return c.Transport.RoundTrip(req)

func main() {
    publicInfoClient := &http.Client{
        // Create client ID from https://myanimelist.net/apiconfig. 
        Transport: &clientIDTransport{ClientID: "<Your application client ID>"},

    c := mal.NewClient(publicInfoClient)
    // ...

Authenticating using OAuth2

The recommended way is to use the golang.org/x/oauth2 package (https://github.com/golang/oauth2). After completing the OAuth2 flow, you will get an oauth2 token containing an access token, a refresh token and an expiration date. The oauth2 token can easily be stored in JSON format and used like this:

const storedToken = `
    "token_type": "Bearer",
    "access_token": "yourAccessToken",
    "refresh_token": "yourRefreshToken",
    "expiry": "2021-06-01T16:12:56.1319122Z"

oauth2Token := new(oauth2.Token)
_ = json.Unmarshal([]byte(storedToken), oauth2Token)

// Create client ID and secret from https://myanimelist.net/apiconfig. 
// Secret is currently optional if you choose App Type 'other'.
oauth2Conf := &oauth2.Config{
    ClientID:     "<Enter your registered MyAnimeList.net application client ID>",
    ClientSecret: "<Enter your registered MyAnimeList.net application client secret>",
    Endpoint: oauth2.Endpoint{
        AuthURL:   "https://myanimelist.net/v1/oauth2/authorize",
        TokenURL:  "https://myanimelist.net/v1/oauth2/token",
        AuthStyle: oauth2.AuthStyleInParams,

oauth2Client := oauth2Conf.Client(ctx, oauth2Token)

// The oauth2Client will refresh the token if it expires.
c := mal.NewClient(oauth2Client)

Note that all calls made by the client above will include the specified oauth2 token which is specific for an authenticated user. Therefore, authenticated clients should almost never be shared between different users.

Performing the OAuth2 flow involves registering a MAL API application and then asking for the user's consent to allow the application to access their data.

There is a detailed example of how to perform the Oauth2 flow and get an oauth2 token through the terminal under example/malauth. The only thing you need to run the example is a client ID and a client secret which you can acquire after registering your MAL API application. Here's how:

  1. Navigate to https://myanimelist.net/apiconfig or go to your MyAnimeList profile, click Edit Profile and select the API tab on the far right.

  2. Click Create ID and submit the form with your application details.

After registering your application, you can run the example and pass the client ID and client secret through flags:

cd example/malauth
go run main.go democlient.go --client-id=... --client-secret=...


go install github.com/nstratos/go-myanimelist/example/malauth
malauth --client-id=... --client-secret=...

After you perform a successful authentication once, the oauth2 token will be cached in a file under the same directory which makes it easier to run the example multiple times.

Official MAL API OAuth2 docs: https://myanimelist.net/apiconfig/references/authorization


To search and get anime and manga data:

list, _, err := c.Anime.List(ctx, "hokuto no ken",
    mal.Fields{"rank", "popularity", "my_list_status"},
// ...

list, _, err := c.Manga.List(ctx, "hokuto no ken",
    mal.Fields{"rank", "popularity", "my_list_status"},
// ...

You may get user specific data for a certain record by using the optional field "my_list_status".

Official docs:


To get the anime or manga list of a user:

// Get the authenticated user's anime list, filter only watching anime, sort by
// last updated, include list status.
anime, _, err := c.User.AnimeList(ctx, "@me",
// ...

// Get the authenticated user's manga list's second page, sort by score, 
// include list status, comments and tags.
manga, _, err := c.User.MangaList(ctx, "@me",
    mal.Fields{"list_status{comments, tags}"},
// ...

You may provide the username of the user or "@me" to get the authenticated user's list.

Official docs:


To get information about the authenticated user:

user, _, err := c.User.MyInfo(ctx)
// ...

This method can use the Fields option but the API doesn't seem to be able to send optional fields like "anime_statistics" at the time of writing.

Official docs:


To get details for a certain anime or manga:

a, _, err := c.Anime.Details(ctx, 967,
// ...

m, _, err := c.Manga.Details(ctx, 401,
        "authors{last_name, first_name}",
// ...

By default most fields are not populated so use the Fields option to request the fields you need.

Official docs:


To get anime or manga based on a certain ranking:

anime, _, err := c.Anime.Ranking(ctx,
    mal.Fields{"rank", "popularity"},
// ...

manga, _, err := c.Manga.Ranking(ctx,
    mal.Fields{"rank", "popularity"},
// ...

Official docs:

Add or Update List

To add or update an entry in an authenticated user's list, provide the anime or manga ID and then options to specify the status, score, comments, tags etc.

_, _, err := c.Anime.UpdateMyListStatus(ctx, 967,
    mal.Comments("You wa shock!"),
// ...

_, _, err := c.Manga.UpdateMyListStatus(ctx, 401,
// ...

Official docs:


To delete anime or manga from a user's list, simply provide their IDs:

_, err := c.Anime.DeleteMyListItem(ctx, 967)
// ...

_, err := c.Manga.DeleteMyListItem(ctx, 401)
// ...

Official docs:

More Examples

See package examples: https://pkg.go.dev/github.com/nstratos/go-myanimelist/mal#pkg-examples

Unit Testing

To run all unit tests:

go test -cover

To see test coverage in your browser:

go test -covermode=count -coverprofile=count.out && go tool cover -html count.out

Integration Testing

The integration tests will exercise the entire package against the live MyAnimeList API. As a result, these tests take much longer to run and there is also a much higher chance of false positives in test failures due to network issues etc.

These tests are meant to be run using a dedicated test account that contains empty anime and manga lists. A valid oauth2 token needs to be provided every time. Check the authentication section to learn how to get one.

By default the integration tests are skipped when an oauth2 token is not provided. To run all tests including the integration tests:

go test --client-id='<your app client ID>' --oauth2-token='<your oauth2 token>'



*Note that all licence references and agreements mentioned in the go-myanimelist README section above are relevant to that project's source code only.