lyd_parse_op help required,

[srikanths1]

Hi, Below is our sample yang file

module cmAgent {
  namespace "http://cmAgent/ns/cmAgent";
  prefix "cm";

  container day1-data {
    description "Information about the system";

    leaf available {
      type boolean;
      default false;
      description "day1 data available";
    }
  }
    notification commit {
        description "Notification sent when a commit operation occurs after day1 data is pushed.";
        leaf message {
            type string;
        }
    }
}

and for get rpc, we have below reply,

<get xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <data>
    <day1-data xmlns="http://cmAgent/ns/cmAgent">
      <available>false</available>
    </day1-data>
  </data>
</get>

we are trying to to lyd_parse on the output to get leaf available, but facing below issue,

libyang[0]: No module with namespace "urn:ietf:params:xml:ns:netconf:base:1.0" in the context. (line: 2)

we need help in identifying what is the problem we are doing,

        struct ly_in *in;
        
        ly_in_new_filepath("/tmp/rp.xml", 0, &in);

        struct lyd_node *tree, *node;
        struct ly_set *set;

        printf("parsing data now \n");
        // parse data
        
        rc=lyd_parse_op(ctx, NULL, in, LYD_XML, LYD_TYPE_RPC_YANG, &tree, &node);

[michalvasko]

Just fix the error, the module with this namespace is ietf-netconf and you are trying to load an RPC defined in this module. So, quite naturally it must be loaded in the context.

[srikanths1]

i have the modules loaded,

/* directory with library YANG modules */
#define MODULES_DIR "/usr/local/share/yang/modules"

    /* set the path to search for schemas */
    nc_client_set_schema_searchpath(MODULES_DIR);

do i still require to load netconf yang in context?

        const char *yang_module = "/root/modules/cmAgent.yang";  // Replace with your YANG module name
        const char *xpath = "/cmAgent:day1-data/available"; // Example XPath expression

        // Initialize libyang context
        rc = ly_ctx_new(MODULES_DIR,0,&ctx);
        if (rc) {
            printf("Failed to create libyang context.\n");
            return 1;
        }
        printf("yang context is loaded\n");

        // Load YANG module
        if (lys_parse_path(ctx, yang_module,LYS_IN_YANG,NULL) != 0 ) {
            printf("Failed to parse YANG module.\n");
            ly_ctx_destroy(ctx);
            return 1;
        }

[michalvasko]

In this code you have loaded only cmAgent.yang, no other module. So do as I said and it should work.