How it works

//@json
struct my_json_data {
    /*
    @schema {
        "title": "ID",
        "description": "unique object id",
        "type": "int"
    }
    */
    uint64_t id;

    /* don't include in json */
    //@private
    int _id;

    bool active;

    /* add the ability to null this field even though it's not a pointer */
    //@nullable
    double ratio;
    char *name;

    /* automatically parsed as an array atm */
    char **tags;
}

what about arrays of structs?

//@json
struct my_json_container {
    struct my_json_data main_data;

    /* static arrays are automatic */
    struct my_json_data array_data[5];
    /* as are struct arrays atm*/
    struct my_json_data *alloc_array_data;
}

Foreign Structs

struct foreign_struct {
    uint64_t id;
    int _id;
    enum jstruct_error err;

    bool active;
    double ratio_double;
    char *name;
    unsigned long long ull;
    char **tags;  
};
/* @json {
    "_id": "@private",
    "ratio_double": {
        "@nullable": true,
        "@name": "ratio"
    },
    "@name": "other_name"
} */
struct my_json_foreign_struct {
    // place all members of a struct 'inline' inside this struct 
    // @inline
    struct foreign_struct fs;
};

Problem 1

  struct json_object *entry = json_object_new_object();
  json_object_object_add(entry, "sentbyte", json_object_new_int(
      chart_stats[i].bytes_sent));
  json_object_object_add(entry, "rcvdbyte", json_object_new_int(
      chart_stats[i].bytes_rcvd));
  json_object_object_add(entry, "sessions", json_object_new_int(
      chart_stats[i].sessions));
  json_object_object_add(entry, "session_block", json_object_new_int(
      chart_stats[i].utmincident[THM_STAT_IDX_BLOCKED]));
  json_object_object_add(entry, "session_allow", json_object_new_int(
      chart_stats[i].utmincident[THM_STAT_IDX_PASSTHROUGH]));
  json_object_object_add(entry, "score_low", json_object_new_int(
      chart_stats[i].utmscore[THM_SEVERITY_LOW]));
  json_object_object_add(entry, "score_medium", json_object_new_int(
      chart_stats[i].utmscore[THM_SEVERITY_MEDIUM]));
  json_object_object_add(entry, "score_high", json_object_new_int(
      chart_stats[i].utmscore[THM_SEVERITY_HIGH]));
  json_object_object_add(entry, "score_critical", json_object_new_int(
      chart_stats[i].utmscore[THM_SEVERITY_CRITICAL]));
  json_object_array_add(series, entry);

Problem 2

 for (i = rev_list_length - 1, rev = &rev_list[i]; i >= 0; i--, rev--) {

    // Version details for category groupings
    if (memcmp(&imgversion, &rev->version, sizeof(imgversion))) {
        struct json_object *new_rev_cat = json_object_new_object();
        snprintf(version, sizeof(version), "%d", ++version_id);
        json_object_object_add(new_rev_cat, "major_version", json_object_new_uint(rev->version.major_ver));
        json_object_object_add(new_rev_cat, "minor_version", json_object_new_uint(rev->version.minor_ver));
        json_object_object_add(new_rev_cat, "patch_number", json_object_new_uint(rev->version.patch_num));
        json_object_object_add(new_rev_cat, "build_number", json_object_new_uint(rev->version.build_num));
        json_object_object_add(new_rev_cat, "release_number", json_object_new_uint(rev->version.release_num));
        json_object_object_add(rev_cats, version, new_rev_cat);
        memcpy(&imgversion, &rev->version, sizeof(imgversion));
    }

    struct json_object *new_rev = json_object_new_object();
    json_object_object_add(new_rev, "id", json_object_new_int(rev->id));
    json_object_object_add(new_rev, "time", json_object_new_uint((uint32_t) rev->timestamp));
    json_object_object_add(new_rev, "version_id", json_object_new_string(version));
    json_object_object_add(new_rev, "admin", json_object_new_string(rev->admin));
    json_object_object_add(new_rev, "comment", json_object_new_string(rev->comment));
    json_object_array_add(revs, new_rev);
}

CHANGES

fortiview.c
system.c