cam.getSnapshotUri() not working with public camera id #336

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1. RogerHardiman commented on Oct 16, 2024

   

   RogerHardiman

   on Oct 16, 2024

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   Spotted a few eroors in the code.
   a) You only need Stream (Multicast) and Protocol (RTSP) for Get StreamUri(). You do not need them for GetSnapshotUri

   b) The await on getStreamuri does nothing. The library is a "function with callback" type of library, unless you pass the library through Promisify and then you can use await and would not have a callback.
   If you were trying to wait for it to finish, and then resolve a promise, you'd call resolve after console.log(data)

   this may not explain why it fails though
2. JooZef315 commented on Oct 16, 2024

   

   JooZef315

   on Oct 16, 2024

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   Spotted a few eroors in the code. a) You only need Stream (Multicast) and Protocol (RTSP) for Get StreamUri(). You do not need them for GetSnapshotUri

   b) The await on getStreamuri does nothing. The library is a "function with callback" type of library, unless you pass the library through Promisify and then you can use await and would not have a callback. If you were trying to wait for it to finish, and then resolve a promise, you'd call resolve after console.log(data)

   this may not explain why it fails though

   thank you for replying @RogerHardiman,

   refactored it to this, but still the same error

   cam.getSnapshotUri(
   { profileToken: cam.activeSource.profileToken },
   function (err, data) {
     console.log(data);
   }
   );
3. NdiayeeCheikh commented on Apr 14, 2025

   

   NdiayeeCheikh

   on Apr 14, 2025

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   You can use an api according to your framework, i'm using nextjs by the way.
   Inside the api , just do a soap request :

   import DigestClient from 'digest-fetch';
   import { parseStringPromise } from 'xml2js'; // Utilisation de xml2js pour parser le XML

   export async function POST(req) {
   try {
   const body = await req.json();
   const ip = body.ip;
   const profileToken = body.profileList[0];
   console.log('IP:', ip);
   console.log('ProfileToken:', profileToken);

   if (!ip || !profileToken) {
     return new Response(
       JSON.stringify({ error: 'Adresse IP ou ProfileToken manquants' }),
       {
         status: 400,
         headers: { 'Content-Type': 'application/json' },
       }
     );
   }
   
   const url = `http://${ip}:80/onvif/device_service`;
   const username = 'xx';
   const password = 'xx';
   
   const headers = {
     'Content-Type': 'application/soap+xml; charset=utf-8',
     'SOAPAction': '"http://www.onvif.org/ver10/media/wsdl/GetSnapshotUri"',
   };
   
   const soapBody = `
     <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdl="http://www.onvif.org/ver10/media/wsdl">
       <soap:Header/>
       <soap:Body>
         <wsdl:GetSnapshotUri>
           <wsdl:ProfileToken>${profileToken}</wsdl:ProfileToken>
         </wsdl:GetSnapshotUri>
       </soap:Body>
     </soap:Envelope>
   `;
   
   const client = new DigestClient(username, password);
   const response = await client.fetch(url, {
     method: 'POST',
     headers,
     body: soapBody,
   });
   
   const xml = await response.text();
   
   const result = await parseStringPromise(xml, { explicitArray: false });
   const snapshotUri = result['env:Envelope']['env:Body']['trt:GetSnapshotUriResponse']['trt:MediaUri']['tt:Uri'];
   console.log('SnapshotUri:', snapshotUri);
   return new Response(
     JSON.stringify({ snapshotUri }),
     {
       status: 200,
       headers: { 'Content-Type': 'application/json' },
     }
   );
   

   } catch (err) {
   return new Response(JSON.stringify({ error: err.message }), {
   status: 500,
   headers: { 'Content-Type': 'application/json' },
   });
   }
   }
4. RogerHardiman commented on Sep 30, 2026

   

   RogerHardiman

   on Sep 30, 2026

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   Could I have remote acccess to the camera - (I realise this was 2 years ago) please
   It is also possible that this is a camera that does not implement cam.getSnapshotUri().
   That ONVIF API is only needed in Profile T devices. If it is an older ONVIF Device (Profile s) then it may not be available for your user login.