Authenticating with a Credentials File

    Given a creds file, a client can authenticate as a specific user belonging to a specific account:

    {% tabs %} {% tab title=”Go” %}

    1. nc, err := nats.Connect("127.0.0.1", nats.UserCredentials("path_to_creds_file"))
    2. if err != nil {
    3.     log.Fatal(err)
    4. }
    5. defer nc.Close()
    7. // Do something with the connection

    {% endtab %}

    {% endtab %}

    {% tab title=”JavaScript” %}

    1. // credentials file contains the JWT and the secret signing key
    2.   const authenticator = credsAuthenticator(creds);
    3.     port: ns.port,
    4.     authenticator: authenticator,
    5. });

    {% endtab %}

    {% endtab %}

    {% tab title=”C” %}

    1. natsConnection      *conn      = NULL;
    2. natsOptions         *opts      = NULL;
    3. natsStatus          s          = NATS_OK;
    5. s = natsOptions_Create(&opts);
    6. if (s == NATS_OK)
    7.     // Otherwise, if the content is split, the first file is the user JWT, the second
    8.     // contains the seed.
    9.     s = natsOptions_SetUserCredentialsFromFiles(opts, "path_to_creds_file", NULL);
    10. if (s == NATS_OK)
    11.     s = natsConnection_Connect(&conn, opts);
    13. (...)
    15. // Destroy objects that were created
    16. natsOptions_Destroy(opts);

    {% endtab %} {% endtabs %}