Failed to push using push_to_gateway and basic_auth_handler.

[rayn316]

After collecting data with Prometheus, it can be pushed to a remote Prometheus server. However, direct pushing fails, returning the following error:

  File "/usr/local/lib/python3.10/dist-packages/prometheus_client/exposition.py", line 529, in push_to_gateway
    _use_gateway('PUT', gateway, job, registry, grouping_key, timeout, handler)
  File "/usr/local/lib/python3.10/dist-packages/prometheus_client/exposition.py", line 621, in _use_gateway
    handler(
  File "/usr/local/lib/python3.10/dist-packages/prometheus_client/exposition.py", line 444, in handle
    default_handler(url, method, timeout, headers, data)()
  File "/usr/local/lib/python3.10/dist-packages/prometheus_client/exposition.py", line 381, in handle
    resp = build_opener(base_handler).open(request, timeout=timeout)
  File "/usr/lib/python3.10/urllib/request.py", line 525, in open
    response = meth(req, response)
  File "/usr/lib/python3.10/urllib/request.py", line 634, in http_response
    response = self.parent.error(
  File "/usr/lib/python3.10/urllib/request.py", line 563, in error
    return self._call_chain(*args)
  File "/usr/lib/python3.10/urllib/request.py", line 496, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.10/urllib/request.py", line 643, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 400: Bad Request

code:

def prometheus_auth_handler(url, method, timeout, headers, data):
    username = '123213'
    password = '12312'
    return basic_auth_handler(url, method, timeout, headers, data, username, password)

    resp = requests.post(forta_url, headers=headers, data=payload)
    info = resp.text
    info = json.loads(info)
    for i in info['data']['getMultiSLAs']:
        avg_uptime = i['slaAvgOverTime']['uptime']['avgUptime']
        avg_SLA = i['slaAvgOverTime']['sla']['avgSLA']
        validatorAddr = i['id']
        validatorName = forta_ids[validatorAddr]
        print(f'validatorCheck{{chainName="{chainName}",validatorName="{validatorName}",validatorAddr="{validatorAddr}", validator_info_type="avg_uptime"}} {avg_uptime}')
        print(f'validatorCheck{{chainName="{chainName}",validatorName="{validatorName}",validatorAddr="{validatorAddr}", validator_info_type="avg_SLA"}} {avg_SLA}')
        forta_gauge.labels(chainName=chainName, validatorName=validatorName, validatorAddr=validatorAddr, validator_info_type='avg_uptime').set(avg_uptime)
        forta_gauge.labels(chainName=chainName, validatorName=validatorName, validatorAddr=validatorAddr, validator_info_type='avg_SLA').set(avg_SLA)
    push_to_gateway('http://ip:8429/api/v1/write', job='forta', registry=registry, handler=prometheus_auth_handler)

[rayn316]

Can we only push to the gateway now? Is it possible to write to the Prometheus database remotely?

[csmarchbanks]

This library does not support pushing directly to Prometheus and does not plan to, it is best to either have Prometheus (or an agent) scrape your service if it is long running, and use push_gateway if your service is short running.