API Key (Desktop)
- Updated2025-07-28
- 2 minute(s) read
Initializes an HTTPS connection for SystemLink data services to communicate with SystemLink using an API key and a CA certificate for authentication.

Inputs/Outputs
verify server?
A Boolean that determines whether this VI will verify the connection is secured by a valid certificate.
The default value is True.
server url
URL of the server where this node sends the web request.
Default value: http://localhost:80
URL Syntax
| Part | Definition | Example |
|---|---|---|
| Scheme | Protocol the web service uses. | http:// |
| Host | Domain name or IP address of the service. | localhost |
| Port | HTTP port of the web service. If you don't specify a port, the web service uses the default port. | 80 |
Use the following syntax to prompt a connection to the SystemLink Server: https://host:<port>.
To host a web application on a SystemLink Server, leave the server url input empty.
ca certificate file
File path to where a custom or private CA certificate ( .cer) is located on the system.
The CA certificate authenticates a secure sockets layer to communicate data between your application and the server. If you leave this input unwired, the VI uses the system defaults, which includes public CA certificates.
api key
Unique passcode the node uses to authenticate communication between the application and SystemLink.
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
configuration
Connection to the server.
error out
Error information.
The node produces this output according to standard error behavior.