Linear

OAuth 2.0 provider for Linear.

Also see the OAuth 2.0 guide.

Initialization

import { Linear } from "arctic";

const linear = new Linear(clientId, clientSecret, redirectURI);

Create authorization URL

The read scope must always be included.

import { generateState } from "arctic";

const state = generateState();
const scopes = ["read", "write"];
const url = linear.createAuthorizationURL(state, scopes);

Validate authorization code

validateAuthorizationCode() will either return an OAuth2Tokens, or throw one of OAuth2RequestError, ArcticFetchError, or a standard Error (parse errors). Linear will return an access token with an expiration.

import { OAuth2RequestError, ArcticFetchError } from "arctic";

try {
	const tokens = await linear.validateAuthorizationCode(code);
	const accessToken = tokens.accessToken();
	const accessTokenExpiresAt = tokens.accessTokenExpiresAt();
} catch (e) {
	if (e instanceof OAuth2RequestError) {
		// Invalid authorization code, credentials, or redirect URI
		const code = e.code;
		// ...
	}
	if (e instanceof ArcticFetchError) {
		// Failed to call `fetch()`
		const cause = e.cause;
		// ...
	}
	// Parse error
}

Get user profile

Use Linear's GraphQL API.

const response = await fetch("https://api.linear.app/graphql", {
    method: "POST",
    body: `{ "query": "{ viewer { id name } }" }`,
	headers: {
        "Content-Type": "application/json"
		Authorization: `Bearer ${accessToken}`
	}
});
const user = await response.json();