private async getTokenFromApi()

in src/auth/ClientCredentialsStrategy.ts [47:76]

• 25 lines of code
• 3 McCabe index (conditional complexity)

    private async getTokenFromApi(): Promise<AccessToken> {
        const options = {
            grant_type: 'client_credentials',
            scope: this.scopes.join(' ')
        } as any;

        const bodyAsString = Object.keys(options).map(key => key + '=' + options[key]).join('&');
        const hasBuffer = typeof Buffer !== 'undefined';
        const credentials = `${this.clientId}:${this.clientSecret}`;

        const basicAuth = hasBuffer
            ? Buffer.from(credentials).toString('base64')
            : btoa(credentials);

        const result = await fetch("https://accounts.spotify.com/api/token", {
            method: 'POST',
            headers: {
                "Content-Type": "application/x-www-form-urlencoded",
                "Authorization": `Basic ${basicAuth}`
            },
            body: bodyAsString
        });

        if (result.status !== 200) {
            throw new Error("Failed to get access token.");
        }

        const json = await result.json();
        return json;
    }