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LogScale Self-Hosted Deployment
This is an archived version of the documentation downloaded from LogScale Documentation Archives. Up to date documentation, and documentation for later versions, is available on LogScale Documentation

### Monitoring Auxiliary PDF Service

To monitor auxiliary services within the UI, visit the `Auxiliary services` page.

Auxiliary services can also be monitoring through the servicesMetadata GraphQL query:

Raw
graphql

    query {
      servicesMetadata {
        name,
        serviceType,
        endpointUrl,
        healthStatus {status,message}
      }
    }

Mac OS or Linux (curl)
shell

    curl -v -X POST $YOUR_LOGSCALE_URL/graphql \
        -H "Authorization: Bearer $TOKEN" \
        -H "Content-Type: application/json" \
        -d @- << EOF
    {"query" : "query {
      servicesMetadata {
        name,
        serviceType,
        endpointUrl,
        healthStatus {status,message}
      }
    }"
    }
    EOF

Mac OS or Linux (curl) One-line
shell

    curl -v -X POST $YOUR_LOGSCALE_URL/graphql \
        -H "Authorization: Bearer $TOKEN" \
        -H "Content-Type: application/json" \
        -d @- << EOF
    {"query" : "query {
      servicesMetadata {
        name,
        serviceType,
        endpointUrl,
        healthStatus {status,message}
      }
    }"
    }
    EOF

Windows Cmd and curl
shell

    curl -v -X POST $YOUR_LOGSCALE_URL/graphql ^
        -H "Authorization: Bearer $TOKEN" ^
        -H "Content-Type: application/json" ^
        -d @'{"query" : "query { ^
      servicesMetadata { ^
        name, ^
        serviceType, ^
        endpointUrl, ^
        healthStatus {status,message} ^
      } ^
    }" ^
    } '

Windows Powershell and curl
powershell

    curl.exe -X POST
        -H "Authorization: Bearer $TOKEN"
        -H "Content-Type: application/json"
        -d '{"query" : "query {
      servicesMetadata {
        name,
        serviceType,
        endpointUrl,
        healthStatus {status,message}
      }
    }"
    }'
        "$YOUR_LOGSCALE_URL/graphql"

Perl
perl

    #!/usr/bin/perl

    use HTTP::Request;
    use LWP;

    my $TOKEN = "TOKEN";

    my $uri = '$YOUR_LOGSCALE_URL/graphql';

    my $query = "query {
      servicesMetadata {
        name,
        serviceType,
        endpointUrl,
        healthStatus {status,message}
      }
    }";
    $query =~ s/\n/ /g;
    my $json = sprintf('{"query" : "%s"}',$query);
    my $req = HTTP::Request->new("POST", $uri );

    $req->header("Authorization" => "Bearer $TOKEN");
    $req->header("Content-Type" => "application/json");

    $req->content( $json );

    my $lwp = LWP::UserAgent->new;

    my $result = $lwp->request( $req );

    print $result->{"_content"},"\n";

Python
python

    #! /usr/local/bin/python3

    import requests

    url = '$YOUR_LOGSCALE_URL/graphql'
    mydata = r'''{"query" : "query {
      servicesMetadata {
        name,
        serviceType,
        endpointUrl,
        healthStatus {status,message}
      }
    }"
    }'''

    resp = requests.post(url,
                         data = mydata,
                         headers = {
       "Authorization" : "Bearer $TOKEN",
       "Content-Type" : "application/json"
    }
    )

    print(resp.text)

Node.js
javascript

    const https = require('https');

    const data = JSON.stringify(
        {"query" : "query {
      servicesMetadata {
        name,
        serviceType,
        endpointUrl,
        healthStatus {status,message}
      }
    }"
    }
    );

    const options = {
      hostname: '$YOUR_LOGSCALE_URL',
      path: 'graphql',
      port: 443,
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'Content-Length': data.length,
        Authorization: 'BEARER ' + process.env.TOKEN,
        'User-Agent': 'Node',
      },
    };

    const req = https.request(options, (res) => {
      let data = '';
      console.log(`statusCode: ${res.statusCode}`);

      res.on('data', (d) => {
        data += d;
      });
      res.on('end', () => {
        console.log(JSON.parse(data).data);
      });
    });

    req.on('error', (error) => {
      console.error(error);
    });

    req.write(data);
    req.end();

This will output a list of the configured services:

json

    {
      "data": {
        "servicesMetadata": [
          {
            "name": "default-pdf-render-service",
            "serviceType": "pdf-render-service",
            "endpointUrl": "http://pdf-render.local:5123",
            "healthStatus": {
              "status": "OK",
              "message": "HttpEntity.Strict(text/html; charset=UTF-8,2 bytes total)"
            }
          }
        ]
      },
    }

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