Adding new tag via API to a host created via host.create, resulting not successful

[verde]

Hi, I have a host created via API (host.create) including 5 initial tags.
I'm trying to add a new tag for a host, but the API host.update replaces all the 5 old tags with the new one. So instead of having 6 tags, the host ended up with only 1.
Any suggestions to add a new tag via APIs?

zabbix_server (Zabbix) 6.2.1

Call:
url='http://'+ zbxServer +'/zabbix/api_jsonrpc.php';

host.update:
 
data={
 "jsonrpc": "2.0",
 "method": "host.update",
 "params": {
 "hostid": hostid,
 "tags": [ {
   "tag": "deactivated",
   "value": deactivationDate
   }]
 },
 "auth": token,
 "id": 1
}

Also, I tried to use host.get with "selectTags": "extend", but it brings the tags with an "automatic": "0" in each tag, i.e:

host.get result:
 
  "tags": [
{
"tag": "type",
"value": "server",
"automatic": "0"
},
...
...
{
"tag": "service",
"value": "active",
"automatic": "0"
}
]

when I added the new tag to the existing tags returned by host.get, and try to host.update it I'm receiving the error:

Reading : [{'tag": "type","value": "server", "automatic": "0"},.....{"tag":"service","value":"active","autom atic":"0"}]

Appending: [{'tag": "type","value": "server", "automatic": "0"},.....{"tag":"service","value":"active","autom atic":"0"},
{"tag": "deactivated", "value": "2022-08-26 20:51:53"}
  ]

host.update result:

Error: {'jsonrpc': '2.0',
'error':{'code': -32602, 'message': 'Invalid params.', 'data': 'Invalid parameter "/1/tags/1": unexpected parameter "automatic".'},
'id': 1}
​

Thanks

[cyber]

What happens if you skip that "automatic": "0" part when inserting? use only type and value...

[dimir]

Unfortunately there is currently now way to "add" host tags to the existing ones. When adding you must also list all the current ones.

[verde]

Thanks for the feedback. I just confirmed that to add a new tag via APIs on 6.2.1, it's needed to read first the current tags.
So, after reading the tags, taking out "automatic": "0" from each one, and appending the new tag/value, host.update worked.

[purval.patel]

Yes it is possible. please check the link.

[cyber]

Yes it is possible. please check the link.

No it is still not possible to add directly... you still have to get list of existing ones and then update to include all, old and new... Just as told before and also implemented...

[purval.patel]

yes you were right, need to include all old and new. I have tried with the python code. and its working.

from zabbix_api import ZabbixAPI
import sys

# Connect to the Zabbix API
zapi = ZabbixAPI(server="http://zabbix-server-ip/zabbix")
zapi.login("username", "password")

# Get all hosts from the Zabbix server
hosts = zapi.host.get({"output": ["host"]})

# Print the host names
for host in hosts:
# print(host["host"])
hostis=host["host"]
# Get the ID of the host you want to update
hosts = zapi.host.get({"filter": {"host": hostis}})
if hosts:
host_id = hosts[0]["hostid"]
else:
print("Host not found")

print(hostis,host_id)
# Get the existing tags for the host
existing_tags = zapi.host.get({"hostids": host_id, "selectTags": "extend"})
existing_tags = existing_tags[0]["tags"]

# Add the new tag to the list of existing tags
new_tag = {"tag": "tag1", "value": "value1"}
existing_tags.append(new_tag)

# Update the host with the new list of tags
zapi.host.update(
{
"hostid": host_id,
"tags": existing_tags,
}
)