function generateSasToken()

in src/server/eventHubHelper.ts [30:48]

• 16 lines of code
• 1 McCabe index (conditional complexity)

function generateSasToken(
    resourceUri: string,
    signingKey: string,
    policyName: string,
    expiresInMins: number
    ): string {
    resourceUri = encodeURIComponent(resourceUri);

    const expiresInSeconds = Math.ceil(Date.now() / 1000 + expiresInMins * 60);
    const toSign = resourceUri + "\n" + expiresInSeconds;

    // Use the crypto module to create the hmac.
    const hmac = crypto.createHmac("sha256", Buffer.from(signingKey, "base64"));
    hmac.update(toSign);
    const base64UriEncoded = encodeURIComponent(hmac.digest("base64"));

    // Construct authorization string.
    return `SharedAccessSignature sr=${resourceUri}&sig=${base64UriEncoded}&se=${expiresInSeconds}&skn=${policyName}`;
}