How to trust self signed certificate programmatically ?

My app is using a self signed certificate and we are planning to use the same in production. To avoid asking user to install the certificate manually, can I add the certificate to the list of trusted anchors using SecTrustSetAnchorCertificates(_: _:). Is this a correct approach ?

Please find the code below:

  func addAnchorToTrust(trust: SecTrust, certificate: SecCertificate) -> SecTrust {
        let array: NSMutableArray = NSMutableArray()
        array.add(certificate)
        SecTrustSetAnchorCertificates(trust, array)
        return trust
    }

    func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping  (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {

        guard challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust, let serverTrust = challenge.protectionSpace.serverTrust else {
            completionHandler(URLSession.AuthChallengeDisposition.cancelAuthenticationChallenge, nil)
            return
        }
        let filePath = Bundle.main.path(forResource: "httpsPublicCertificate", ofType: "cer")

        guard let file = filePath, let savedCertificateData = NSData(contentsOfFile: file), let rootCert = SecCertificateCreateWithData(kCFAllocatorDefault, savedCertificateData) else {
            completionHandler(URLSession.AuthChallengeDisposition.cancelAuthenticationChallenge, nil)
            return
        }
        let sslInput = addAnchorToTrust(trust: serverTrust, certificate: rootCert)
        var result: SecTrustResultType = SecTrustResultType.unspecified
        let error: OSStatus = SecTrustEvaluate(sslInput, &result)

        if (error != 0){
            completionHandler(URLSession.AuthChallengeDisposition.cancelAuthenticationChallenge, nil)
            return
        }
        guard self.validate(trust: serverTrust, with: SecPolicyCreateBasicX509()), let serverCertificate = SecTrustGetCertificateAtIndex(serverTrust, 0)
        else {
            completionHandler(URLSession.AuthChallengeDisposition.cancelAuthenticationChallenge, nil)
            return
        }
        let serverCertificateData = SecCertificateCopyData(serverCertificate)
        let serverCertificateDataPtr = CFDataGetBytePtr(serverCertificateData);
        let serverCertificateDataSize = CFDataGetLength(serverCertificateData);
        let serverCertificateNSData = NSData(bytes: serverCertificateDataPtr, length: serverCertificateDataSize)
        if serverCertificateNSData.isEqual(to: savedCertificateData as Data) {
            completionHandler(URLSession.AuthChallengeDisposition.useCredential, URLCredential(trust:serverTrust))
            return
        }
    }

    private func validate(trust: SecTrust, with policy: SecPolicy) -> Bool {
        let status = SecTrustSetPolicies(trust, policy)
        guard status == errSecSuccess else { return false }
        return SecTrustEvaluateWithError(trust, nil)

    }