portainer-widget/portainer.js

var portainerURL, portainerEndpoint, portainerUser, portainerPass, portainerBearer;

function portainerInit(url, endpoint, user, password)
{
  portainerURL = url;
  portainerEndpoint = endpoint;
  portainerUser = user;
  portainerPass = password;
}

async function portainerAuth()
{
  if (portainerBearer)
  {
    return portainerBearer;
  }

  try
  {
    let req = new Request(portainerURL + "/api/auth",
    {
      method: "POST",
      headers: {"Accept":"application/json"},
      body: JSON.stringify({"Username": portainerUser,"Password": portainerPass})
    });

    let resp = await fetch(req);
    let json = await resp.json();
    if (json.jwt)
    {
      portainerBearer = json.jwt;
    }
    return json.jwt || null;
  }
  catch
  {
    return null;
  }
}

async function portainerIsRunning(container)
{
  let bearer = await portainerAuth();
  if (bearer == null)
  {
    return;
  }

  try
  {
    let req = new Request(portainerURL + "/api/endpoints/" + portainerEndpoint + "/docker/containers/" + container + "/json",
    {
      headers: {"Authorization": "Bearer " + bearer}
    });

    let resp = await fetch(req);
    json = await resp.json();
    return json.State.Running;
  }
  catch(e)
  {
    console.log(e);
    return false;
  }
}

async function portainerStart(container)
{
  let bearer = await portainerAuth();
  if (bearer == null)
  {
    return false;
  }

  try
  {
    let req = new Request(portainerURL + "/api/endpoints/" + portainerEndpoint + "/docker/containers/" + container + "/start",
    {
      method: "POST",
      headers: {"Authorization": "Bearer " + bearer}
    });

    let resp = await fetch(req);
    // there is no response ...
    return resp.status < 300;
  }
  catch(e)
  {
    console.log(e);
    return false;
  }
}

async function portainerStop(container)
{
  let bearer = await portainerAuth();
  if (bearer == null)
  {
    return false;
  }

  try
  {
    let req = new Request(portainerURL + "/api/endpoints/" + portainerEndpoint + "/docker/containers/" + container + "/stop",
    {
      method: "POST",
      headers: {"Authorization": "Bearer " + bearer}
    });

    let resp = await fetch(req);
    // there is no response ...
    return resp.status < 300;
  }
  catch(e)
  {
    console.log(e);
    return false;
  }
}