(Go) Everyware API RSA Encrypt JSON

See more RSA Examples

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://docs.everyware.com/docs/access-iframe#sample-json--encrypted-payload

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    success := false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // First build the JSON to be encrypted.
    json := JsonObject_Ref.html">chilkat.NewJsonObject()
    json.UpdateString("provider_key","USER GUID HERE")
    json.UpdateString("menu_item","payment")
    dt := CkDateTime_Ref.html">chilkat.NewCkDateTime()
    dt.SetFromCurrentSystemTime()
    json.UpdateString("date_time",*dt.GetAsUnixTimeStr(false))

    // This build JSON like the following:

    // {
    //     "provider_key": "USER GUID HERE",
    //     "menu_item": "payment",
    //     "date_time": "1588163411"
    // }

    // When we sign, we'll want to sign the most compact JSON possible
    json.SetEmitCompact(true)

    // Everyware's RSA public key is at:  https://docs.everyware.com/docs/everyware-public-rsa-key
    sb := StringBuilder_Ref.html">chilkat.NewStringBuilder()
    bCrlf := true
    sb.AppendLine("-----BEGIN PUBLIC KEY-----",bCrlf)
    sb.AppendLine("MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxNbflxUSWQ3XJ1N9dAoh",bCrlf)
    sb.AppendLine("k+uaiFsg3wkPi9LGS/mH8DtHBgZxKyz+oQBDtnDd9FDEo0ql7MMgCMsTAv27W5vk",bCrlf)
    sb.AppendLine("Pu0rm6zhcTeYquWEuVCS7VtVsyTATr0Z9WhqNeZlIRurovJAXl2jRDX6QeY5dayC",bCrlf)
    sb.AppendLine("ubwyG4lBWE4fCakGY6zlh+oaElK0rvblqjYoEg3dn4KPRCYGof8OFxLptHThD4cE",bCrlf)
    sb.AppendLine("T30j+utVafhO0HRyJ4iR3Pigb4GXdWBtJEEEWddZJizMkjFQkyUAoYLOT8EJ2TW3",bCrlf)
    sb.AppendLine("Tz8SvAuHBUEFcPWTSTMAG/bSp5wrYBTXaeEhx+wrYa60OruHuzgmhzKyQVuYlCNJ",bCrlf)
    sb.AppendLine("HdbnassuIRjjSNo25o4AdSlWwpGfBZjAiyEInR+KGpHdhKTxSekJxiwiXUS0UfSG",bCrlf)
    sb.AppendLine("prOpd5PzWaAR7DvjLsdmR9XffxvJCVxC735gLK7hDJKjCajDPHVDr8FSL8xMlrq0",bCrlf)
    sb.AppendLine("nKxtsHeRl1yzoGrRr12+9MiQnHtpqROTNXcXdwe3v+Vh8V5k8v8oIrcgh1+/N7Bd",bCrlf)
    sb.AppendLine("NiRsy1gFHBdu/he/KcDRT/9/acQFMPLQueGfZxUvU5As6pEONjtKX2MUg2fMF6Rc",bCrlf)
    sb.AppendLine("sQVVrLzg0g7EcuHGfuPeKfD/716MvS8NU7rX+2soijCSQv/e18PJPMVDlcMXjnup",bCrlf)
    sb.AppendLine("PPx1tStemesavFlj1okhS6UCAwEAAQ==",bCrlf)
    sb.AppendLine("-----END PUBLIC KEY-----",bCrlf)

    pubkey := PublicKey_Ref.html">chilkat.NewPublicKey()
    success = pubkey.LoadFromString(*sb.GetAsString())
    if success == false {
        fmt.Println(pubkey.LastErrorText())
        json.DisposeJsonObject()
        dt.DisposeCkDateTime()
        sb.DisposeStringBuilder()
        pubkey.DisposePublicKey()
        return
    }

    rsa := Rsa_Ref.html">chilkat.NewRsa()
    success = rsa.UsePublicKey(pubkey)
    if success == false {
        fmt.Println(rsa.LastErrorText())
        json.DisposeJsonObject()
        dt.DisposeCkDateTime()
        sb.DisposeStringBuilder()
        pubkey.DisposePublicKey()
        rsa.DisposeRsa()
        return
    }

    // We probably need a base64Url encoded encrypted key.
    // Using straight-up base64 would potenially include chars that are not URL safe (i.e. have special meanings in URLs)
    rsa.SetEncodingMode("base64url")

    encryptedJson := rsa.EncryptStringENC(*json.Emit(),false)

    // Build the URL
    // Such as:  https://portal.everyware.com/Account/LoginMenu?data={Base64Url_encrypted_JSON}
    sbUrl := StringBuilder_Ref.html">chilkat.NewStringBuilder()
    sbUrl.Append("https://portal.everyware.com/Account/LoginMenu?data=")
    sbUrl.Append(*encryptedJson)

    fmt.Println(*sbUrl.GetAsString())

    json.DisposeJsonObject()
    dt.DisposeCkDateTime()
    sb.DisposeStringBuilder()
    pubkey.DisposePublicKey()
    rsa.DisposeRsa()
    sbUrl.DisposeStringBuilder()