feat(servicenow-cmdb): new ServiceNow CMDB integration

CMDB Instance API: records list by CI class, record get with
attributes + inbound/outbound relations, record create/update with
attributes and discovery source, add/delete relations. Basic or
OAuth 2.0 (password grant) authentication, stdlib-only scripts.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

integrations/servicenow-cmdb/scripts/add_relations.py

@@ -0,0 +1,96 @@
+import base64, json, os, sys, urllib.parse, urllib.request, urllib.error
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _headers(cfg):
+    h = {"Accept": "application/json", "Content-Type": "application/json"}
+    if str(cfg.get("auth_type") or "basic").lower() == "oauth":
+        data = urllib.parse.urlencode({
+            "grant_type": "password",
+            "client_id": cfg.get("client_id", ""),
+            "client_secret": cfg.get("client_secret", ""),
+            "username": cfg.get("username", ""),
+            "password": cfg.get("password", ""),
+        }).encode("utf-8")
+        req = urllib.request.Request(
+            cfg.get("url", "").rstrip("/") + "/oauth_token.do", data=data,
+            headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
+        with urllib.request.urlopen(req, timeout=60) as r:
+            tok = json.loads(r.read())
+        if not tok.get("access_token"):
+            raise Exception("OAuth token request failed: " + json.dumps(tok))
+        h["Authorization"] = "Bearer " + tok["access_token"]
+    else:
+        cred = (cfg.get("username", "") + ":" + cfg.get("password", "")).encode("utf-8")
+        h["Authorization"] = "Basic " + base64.b64encode(cred).decode("ascii")
+    return h
+
+
+def request(method, path, params=None, body=None, root="/api/now", versioned=True):
+    cfg = _cfg()
+    v = str(cfg.get("api_version") or "").strip().strip("/")
+    url = cfg.get("url", "").rstrip("/") + root + ("/" + v if v and versioned else "") + path
+    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
+    if q:
+        url += "?" + urllib.parse.urlencode(q)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    req = urllib.request.Request(url, data=data, headers=_headers(cfg), method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def relation_params(inputs):
+    fields = str(inputs.get("fields") or "")
+    if fields:
+        parts = [p.strip() for p in fields.split(",") if p.strip()]
+        for required in ("sys_id", "name"):
+            if required not in parts:
+                parts.append(required)
+        fields = ",".join(parts)
+    return {
+        "sysparm_fields": fields or None,
+        "sysparm_relation_limit": int(inputs.get("relation_limit") or 50),
+        "sysparm_relation_offset": int(inputs.get("relation_offset") or 0),
+    }
+
+
+def parse_relations(s):
+    if s in (None, ""):
+        return None
+    rel = json.loads(s) if isinstance(s, str) else s
+    if not isinstance(rel, list):
+        raise Exception("relations must be a JSON array of {type, target} objects")
+    return rel
+
+
+def main():
+    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+    ci_class = str(inputs.get("class") or "")
+    sys_id = str(inputs.get("sys_id") or "")
+    if not ci_class or not sys_id:
+        raise Exception("class and sys_id are required")
+    body = {"source": str(inputs.get("source") or "ServiceNow")}
+    inbound = parse_relations(inputs.get("inbound_relations"))
+    if inbound is not None:
+        body["inbound_relations"] = inbound
+    outbound = parse_relations(inputs.get("outbound_relations"))
+    if outbound is not None:
+        body["outbound_relations"] = outbound
+    if "inbound_relations" not in body and "outbound_relations" not in body:
+        raise Exception("inbound_relations or outbound_relations is required")
+    path = "/cmdb/instance/" + urllib.parse.quote(ci_class) + "/" + urllib.parse.quote(sys_id) + "/relation"
+    print(json.dumps(request("POST", path, params=relation_params(inputs), body=body)))
+
+
+try:
+    main()
+except urllib.error.HTTPError as e:
+    print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)

integrations/servicenow-cmdb/scripts/create_record.py

@@ -0,0 +1,111 @@
+import base64, json, os, sys, urllib.parse, urllib.request, urllib.error
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _headers(cfg):
+    h = {"Accept": "application/json", "Content-Type": "application/json"}
+    if str(cfg.get("auth_type") or "basic").lower() == "oauth":
+        data = urllib.parse.urlencode({
+            "grant_type": "password",
+            "client_id": cfg.get("client_id", ""),
+            "client_secret": cfg.get("client_secret", ""),
+            "username": cfg.get("username", ""),
+            "password": cfg.get("password", ""),
+        }).encode("utf-8")
+        req = urllib.request.Request(
+            cfg.get("url", "").rstrip("/") + "/oauth_token.do", data=data,
+            headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
+        with urllib.request.urlopen(req, timeout=60) as r:
+            tok = json.loads(r.read())
+        if not tok.get("access_token"):
+            raise Exception("OAuth token request failed: " + json.dumps(tok))
+        h["Authorization"] = "Bearer " + tok["access_token"]
+    else:
+        cred = (cfg.get("username", "") + ":" + cfg.get("password", "")).encode("utf-8")
+        h["Authorization"] = "Basic " + base64.b64encode(cred).decode("ascii")
+    return h
+
+
+def request(method, path, params=None, body=None, root="/api/now", versioned=True):
+    cfg = _cfg()
+    v = str(cfg.get("api_version") or "").strip().strip("/")
+    url = cfg.get("url", "").rstrip("/") + root + ("/" + v if v and versioned else "") + path
+    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
+    if q:
+        url += "?" + urllib.parse.urlencode(q)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    req = urllib.request.Request(url, data=data, headers=_headers(cfg), method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def relation_params(inputs):
+    fields = str(inputs.get("fields") or "")
+    if fields:
+        parts = [p.strip() for p in fields.split(",") if p.strip()]
+        for required in ("sys_id", "name"):
+            if required not in parts:
+                parts.append(required)
+        fields = ",".join(parts)
+    return {
+        "sysparm_fields": fields or None,
+        "sysparm_relation_limit": int(inputs.get("relation_limit") or 50),
+        "sysparm_relation_offset": int(inputs.get("relation_offset") or 0),
+    }
+
+
+def split_attrs(s):
+    out = {}
+    for part in str(s or "").split(";"):
+        if "=" not in part:
+            continue
+        k, v = part.split("=", 1)
+        k = k.strip()
+        if k:
+            out[k] = v
+    return out
+
+
+def parse_relations(s):
+    if s in (None, ""):
+        return None
+    rel = json.loads(s) if isinstance(s, str) else s
+    if not isinstance(rel, list):
+        raise Exception("relations must be a JSON array of {type, target} objects")
+    return rel
+
+
+def main():
+    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+    ci_class = str(inputs.get("class") or "")
+    if not ci_class:
+        raise Exception("class is required")
+    attributes = split_attrs(inputs.get("attributes"))
+    if not attributes:
+        raise Exception("attributes is required (name=value;name2=value2)")
+    body = {
+        "attributes": attributes,
+        "source": str(inputs.get("source") or "ServiceNow"),
+    }
+    inbound = parse_relations(inputs.get("inbound_relations"))
+    if inbound is not None:
+        body["inbound_relations"] = inbound
+    outbound = parse_relations(inputs.get("outbound_relations"))
+    if outbound is not None:
+        body["outbound_relations"] = outbound
+    path = "/cmdb/instance/" + urllib.parse.quote(ci_class)
+    print(json.dumps(request("POST", path, params=relation_params(inputs), body=body)))
+
+
+try:
+    main()
+except urllib.error.HTTPError as e:
+    print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)

integrations/servicenow-cmdb/scripts/delete_relation.py

@@ -0,0 +1,81 @@
+import base64, json, os, sys, urllib.parse, urllib.request, urllib.error
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _headers(cfg):
+    h = {"Accept": "application/json", "Content-Type": "application/json"}
+    if str(cfg.get("auth_type") or "basic").lower() == "oauth":
+        data = urllib.parse.urlencode({
+            "grant_type": "password",
+            "client_id": cfg.get("client_id", ""),
+            "client_secret": cfg.get("client_secret", ""),
+            "username": cfg.get("username", ""),
+            "password": cfg.get("password", ""),
+        }).encode("utf-8")
+        req = urllib.request.Request(
+            cfg.get("url", "").rstrip("/") + "/oauth_token.do", data=data,
+            headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
+        with urllib.request.urlopen(req, timeout=60) as r:
+            tok = json.loads(r.read())
+        if not tok.get("access_token"):
+            raise Exception("OAuth token request failed: " + json.dumps(tok))
+        h["Authorization"] = "Bearer " + tok["access_token"]
+    else:
+        cred = (cfg.get("username", "") + ":" + cfg.get("password", "")).encode("utf-8")
+        h["Authorization"] = "Basic " + base64.b64encode(cred).decode("ascii")
+    return h
+
+
+def request(method, path, params=None, body=None, root="/api/now", versioned=True):
+    cfg = _cfg()
+    v = str(cfg.get("api_version") or "").strip().strip("/")
+    url = cfg.get("url", "").rstrip("/") + root + ("/" + v if v and versioned else "") + path
+    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
+    if q:
+        url += "?" + urllib.parse.urlencode(q)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    req = urllib.request.Request(url, data=data, headers=_headers(cfg), method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def relation_params(inputs):
+    fields = str(inputs.get("fields") or "")
+    if fields:
+        parts = [p.strip() for p in fields.split(",") if p.strip()]
+        for required in ("sys_id", "name"):
+            if required not in parts:
+                parts.append(required)
+        fields = ",".join(parts)
+    return {
+        "sysparm_fields": fields or None,
+        "sysparm_relation_limit": int(inputs.get("relation_limit") or 50),
+        "sysparm_relation_offset": int(inputs.get("relation_offset") or 0),
+    }
+
+
+def main():
+    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+    ci_class = str(inputs.get("class") or "")
+    sys_id = str(inputs.get("sys_id") or "")
+    rel_sys_id = str(inputs.get("relation_sys_id") or "")
+    if not ci_class or not sys_id or not rel_sys_id:
+        raise Exception("class, sys_id and relation_sys_id are required")
+    path = ("/cmdb/instance/" + urllib.parse.quote(ci_class) + "/" + urllib.parse.quote(sys_id)
+            + "/relation/" + urllib.parse.quote(rel_sys_id))
+    res = request("DELETE", path, params=relation_params(inputs))
+    print(json.dumps(res if res else {"ok": True, "relation_sys_id": rel_sys_id}))
+
+
+try:
+    main()
+except urllib.error.HTTPError as e:
+    print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)

integrations/servicenow-cmdb/scripts/get_record.py

@@ -0,0 +1,78 @@
+import base64, json, os, sys, urllib.parse, urllib.request, urllib.error
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _headers(cfg):
+    h = {"Accept": "application/json", "Content-Type": "application/json"}
+    if str(cfg.get("auth_type") or "basic").lower() == "oauth":
+        data = urllib.parse.urlencode({
+            "grant_type": "password",
+            "client_id": cfg.get("client_id", ""),
+            "client_secret": cfg.get("client_secret", ""),
+            "username": cfg.get("username", ""),
+            "password": cfg.get("password", ""),
+        }).encode("utf-8")
+        req = urllib.request.Request(
+            cfg.get("url", "").rstrip("/") + "/oauth_token.do", data=data,
+            headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
+        with urllib.request.urlopen(req, timeout=60) as r:
+            tok = json.loads(r.read())
+        if not tok.get("access_token"):
+            raise Exception("OAuth token request failed: " + json.dumps(tok))
+        h["Authorization"] = "Bearer " + tok["access_token"]
+    else:
+        cred = (cfg.get("username", "") + ":" + cfg.get("password", "")).encode("utf-8")
+        h["Authorization"] = "Basic " + base64.b64encode(cred).decode("ascii")
+    return h
+
+
+def request(method, path, params=None, body=None, root="/api/now", versioned=True):
+    cfg = _cfg()
+    v = str(cfg.get("api_version") or "").strip().strip("/")
+    url = cfg.get("url", "").rstrip("/") + root + ("/" + v if v and versioned else "") + path
+    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
+    if q:
+        url += "?" + urllib.parse.urlencode(q)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    req = urllib.request.Request(url, data=data, headers=_headers(cfg), method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def relation_params(inputs):
+    fields = str(inputs.get("fields") or "")
+    if fields:
+        parts = [p.strip() for p in fields.split(",") if p.strip()]
+        for required in ("sys_id", "name"):
+            if required not in parts:
+                parts.append(required)
+        fields = ",".join(parts)
+    return {
+        "sysparm_fields": fields or None,
+        "sysparm_relation_limit": int(inputs.get("relation_limit") or 50),
+        "sysparm_relation_offset": int(inputs.get("relation_offset") or 0),
+    }
+
+
+def main():
+    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+    ci_class = str(inputs.get("class") or "")
+    sys_id = str(inputs.get("sys_id") or "")
+    if not ci_class or not sys_id:
+        raise Exception("class and sys_id are required")
+    path = "/cmdb/instance/" + urllib.parse.quote(ci_class) + "/" + urllib.parse.quote(sys_id)
+    print(json.dumps(request("GET", path, params=relation_params(inputs))))
+
+
+try:
+    main()
+except urllib.error.HTTPError as e:
+    print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)

integrations/servicenow-cmdb/scripts/records_list.py

@@ -0,0 +1,65 @@
+import base64, json, os, sys, urllib.parse, urllib.request, urllib.error
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _headers(cfg):
+    h = {"Accept": "application/json", "Content-Type": "application/json"}
+    if str(cfg.get("auth_type") or "basic").lower() == "oauth":
+        data = urllib.parse.urlencode({
+            "grant_type": "password",
+            "client_id": cfg.get("client_id", ""),
+            "client_secret": cfg.get("client_secret", ""),
+            "username": cfg.get("username", ""),
+            "password": cfg.get("password", ""),
+        }).encode("utf-8")
+        req = urllib.request.Request(
+            cfg.get("url", "").rstrip("/") + "/oauth_token.do", data=data,
+            headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
+        with urllib.request.urlopen(req, timeout=60) as r:
+            tok = json.loads(r.read())
+        if not tok.get("access_token"):
+            raise Exception("OAuth token request failed: " + json.dumps(tok))
+        h["Authorization"] = "Bearer " + tok["access_token"]
+    else:
+        cred = (cfg.get("username", "") + ":" + cfg.get("password", "")).encode("utf-8")
+        h["Authorization"] = "Basic " + base64.b64encode(cred).decode("ascii")
+    return h
+
+
+def request(method, path, params=None, body=None, root="/api/now", versioned=True):
+    cfg = _cfg()
+    v = str(cfg.get("api_version") or "").strip().strip("/")
+    url = cfg.get("url", "").rstrip("/") + root + ("/" + v if v and versioned else "") + path
+    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
+    if q:
+        url += "?" + urllib.parse.urlencode(q)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    req = urllib.request.Request(url, data=data, headers=_headers(cfg), method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def main():
+    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+    ci_class = str(inputs.get("class") or "")
+    if not ci_class:
+        raise Exception("class is required")
+    print(json.dumps(request("GET", "/cmdb/instance/" + urllib.parse.quote(ci_class), params={
+        "sysparm_query": inputs.get("query"),
+        "sysparm_limit": int(inputs.get("limit") or 50),
+        "sysparm_offset": int(inputs.get("offset") or 0),
+    })))
+
+
+try:
+    main()
+except urllib.error.HTTPError as e:
+    print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)

integrations/servicenow-cmdb/scripts/test_connection.py

@@ -0,0 +1,62 @@
+import base64, json, os, sys, urllib.parse, urllib.request, urllib.error
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _headers(cfg):
+    h = {"Accept": "application/json", "Content-Type": "application/json"}
+    if str(cfg.get("auth_type") or "basic").lower() == "oauth":
+        data = urllib.parse.urlencode({
+            "grant_type": "password",
+            "client_id": cfg.get("client_id", ""),
+            "client_secret": cfg.get("client_secret", ""),
+            "username": cfg.get("username", ""),
+            "password": cfg.get("password", ""),
+        }).encode("utf-8")
+        req = urllib.request.Request(
+            cfg.get("url", "").rstrip("/") + "/oauth_token.do", data=data,
+            headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
+        with urllib.request.urlopen(req, timeout=60) as r:
+            tok = json.loads(r.read())
+        if not tok.get("access_token"):
+            raise Exception("OAuth token request failed: " + json.dumps(tok))
+        h["Authorization"] = "Bearer " + tok["access_token"]
+    else:
+        cred = (cfg.get("username", "") + ":" + cfg.get("password", "")).encode("utf-8")
+        h["Authorization"] = "Basic " + base64.b64encode(cred).decode("ascii")
+    return h
+
+
+def request(method, path, params=None, body=None, root="/api/now", versioned=True):
+    cfg = _cfg()
+    v = str(cfg.get("api_version") or "").strip().strip("/")
+    url = cfg.get("url", "").rstrip("/") + root + ("/" + v if v and versioned else "") + path
+    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
+    if q:
+        url += "?" + urllib.parse.urlencode(q)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    req = urllib.request.Request(url, data=data, headers=_headers(cfg), method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def main():
+    cfg = _cfg()
+    ci_class = str(cfg.get("test_class") or "cmdb_ci_computer")
+    res = request("GET", "/cmdb/instance/" + urllib.parse.quote(ci_class), params={"sysparm_limit": 1})
+    if "result" not in res:
+        raise Exception("Unexpected response: " + json.dumps(res))
+    print(json.dumps({"ok": True, "class": ci_class}))
+
+
+try:
+    main()
+except urllib.error.HTTPError as e:
+    print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)

integrations/servicenow-cmdb/scripts/update_record.py

@@ -0,0 +1,97 @@
+import base64, json, os, sys, urllib.parse, urllib.request, urllib.error
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _headers(cfg):
+    h = {"Accept": "application/json", "Content-Type": "application/json"}
+    if str(cfg.get("auth_type") or "basic").lower() == "oauth":
+        data = urllib.parse.urlencode({
+            "grant_type": "password",
+            "client_id": cfg.get("client_id", ""),
+            "client_secret": cfg.get("client_secret", ""),
+            "username": cfg.get("username", ""),
+            "password": cfg.get("password", ""),
+        }).encode("utf-8")
+        req = urllib.request.Request(
+            cfg.get("url", "").rstrip("/") + "/oauth_token.do", data=data,
+            headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
+        with urllib.request.urlopen(req, timeout=60) as r:
+            tok = json.loads(r.read())
+        if not tok.get("access_token"):
+            raise Exception("OAuth token request failed: " + json.dumps(tok))
+        h["Authorization"] = "Bearer " + tok["access_token"]
+    else:
+        cred = (cfg.get("username", "") + ":" + cfg.get("password", "")).encode("utf-8")
+        h["Authorization"] = "Basic " + base64.b64encode(cred).decode("ascii")
+    return h
+
+
+def request(method, path, params=None, body=None, root="/api/now", versioned=True):
+    cfg = _cfg()
+    v = str(cfg.get("api_version") or "").strip().strip("/")
+    url = cfg.get("url", "").rstrip("/") + root + ("/" + v if v and versioned else "") + path
+    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
+    if q:
+        url += "?" + urllib.parse.urlencode(q)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    req = urllib.request.Request(url, data=data, headers=_headers(cfg), method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def relation_params(inputs):
+    fields = str(inputs.get("fields") or "")
+    if fields:
+        parts = [p.strip() for p in fields.split(",") if p.strip()]
+        for required in ("sys_id", "name"):
+            if required not in parts:
+                parts.append(required)
+        fields = ",".join(parts)
+    return {
+        "sysparm_fields": fields or None,
+        "sysparm_relation_limit": int(inputs.get("relation_limit") or 50),
+        "sysparm_relation_offset": int(inputs.get("relation_offset") or 0),
+    }
+
+
+def split_attrs(s):
+    out = {}
+    for part in str(s or "").split(";"):
+        if "=" not in part:
+            continue
+        k, v = part.split("=", 1)
+        k = k.strip()
+        if k:
+            out[k] = v
+    return out
+
+
+def main():
+    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+    ci_class = str(inputs.get("class") or "")
+    sys_id = str(inputs.get("sys_id") or "")
+    if not ci_class or not sys_id:
+        raise Exception("class and sys_id are required")
+    attributes = split_attrs(inputs.get("attributes"))
+    if not attributes:
+        raise Exception("attributes is required (name=value;name2=value2)")
+    body = {
+        "attributes": attributes,
+        "source": str(inputs.get("source") or "ServiceNow"),
+    }
+    path = "/cmdb/instance/" + urllib.parse.quote(ci_class) + "/" + urllib.parse.quote(sys_id)
+    print(json.dumps(request("PATCH", path, params=relation_params(inputs), body=body)))
+
+
+try:
+    main()
+except urllib.error.HTTPError as e:
+    print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)