Add AniList provider (#92)

* feat: implement anilist provider

* docs: add docs for provider

* minor fixes

* add state

---------

Co-authored-by: pilcrowOnPaper <[email protected]>

.changesets/w34ma.minor.md

@@ -0,0 +1 @@
+Add AniList provider.

docs/malta.config.json

@@ -16,6 +16,7 @@
 			"title": "Providers",
 			"pages": [
 				["Amazon Cognito", "/providers/amazon-cognito"],
+				["AniList", "/providers/anilist"],
 				["Apple", "/providers/apple"],
 				["Atlassian", "/providers/atlassian"],
 				["Auth0", "/providers/auth0"],

docs/pages/providers/anilist.md

@@ -0,0 +1,18 @@
+---
+title: "AniList"
+---
+
+# AniList
+
+For usage, see [OAuth 2.0 provider](/guides/oauth2).
+
+```ts
+import { AniList } from "arctic";
+
+const anilist = new AniList(clientId, clientSecret, redirectURI);
+```
+
+```ts
+const url: URL = await anilist.createAuthorizationURL(state);
+const tokens: AniListTokens = await anilist.validateAuthorizationCode(code);
+```

src/index.ts

@@ -1,4 +1,5 @@
 export { AmazonCognito } from "./providers/amazon-cognito.js";
+export { AniList } from "./providers/anilist.js";
 export { Apple } from "./providers/apple.js";
 export { Atlassian } from "./providers/atlassian.js";
 export { Auth0 } from "./providers/auth0.js";
@@ -44,6 +45,7 @@ export type {
 	AmazonCognitoRefreshedTokens,
 	AmazonCognitoTokens
 } from "./providers/amazon-cognito.js";
+export type { AniListTokens } from "./providers/anilist.js";
 export type { AppleCredentials, AppleRefreshedTokens, AppleTokens } from "./providers/apple.js";
 export type { AtlassianTokens } from "./providers/atlassian.js";
 export type { Auth0Tokens } from "./providers/auth0.js";

src/providers/anilist.ts

@@ -0,0 +1,41 @@
+import { OAuth2Client } from "oslo/oauth2";
+import type { OAuth2Provider } from "../index.js";
+
+const authorizeEndpoint = "https://anilist.co/api/v2/oauth/authorize";
+const tokenEndpoint = "https://anilist.co/api/v2/oauth/token";
+
+export class AniList implements OAuth2Provider {
+	private client: OAuth2Client;
+	private clientSecret: string;
+
+	constructor(clientId: string, clientSecret: string, redirectURI: string) {
+		this.client = new OAuth2Client(clientId, authorizeEndpoint, tokenEndpoint, {
+			redirectURI
+		});
+		this.clientSecret = clientSecret;
+	}
+
+	public async createAuthorizationURL(state: string): Promise<URL> {
+		return await this.client.createAuthorizationURL({
+			state
+		});
+	}
+
+	public async validateAuthorizationCode(code: string): Promise<AniListTokens> {
+		const result = await this.client.validateAuthorizationCode<TokenResponseBody>(code, {
+			credentials: this.clientSecret
+		});
+		const tokens: AniListTokens = {
+			accessToken: result.access_token
+		};
+		return tokens;
+	}
+}
+
+interface TokenResponseBody {
+	access_token: string;
+}
+
+export interface AniListTokens {
+	accessToken: string;
+}