var dataGenerator = new DataGenerator(); // Generates 8KB UInt8Array every second
var streamToWriteTo;
http.put('/example', function (requestStream) {
  streamToWriteTo = requestStream;
});

dataGenerator.on('data', function (chunk) {
  if (!streamToWriteTo) {
    return;
  }
  streamToWriteTo.write(chunk);
});

{
 "manifest_version" : 2,

 "name" :"Streaming Upload Test",
 "version" :"0.1",

 "app": {
   "background": {
     "scripts": ["background.js"]
    }
  },

 "externally_connectable": {
   "matches": ["*://localhost/*"]
  },

 "sockets": {
   "tcp": {
     "connect":"*:*"
    }
  },

 "permissions": [
  ]
}

var mapSocketToPort = {};

chrome.sockets.tcp.onReceive.addListener(function(info) {
  var port = mapSocketToPort[info.socketId];
  port.postMessage(new TextDecoder('utf-8').decode(info.data));
});

chrome.sockets.tcp.onReceiveError.addListener(function(info) {
  chrome.sockets.tcp.close(info.socketId);
  var port = mapSocketToPort[info.socketId];
  port.postMessage();
  port.disconnect();
  delete mapSocketToPort[info.socketId];
});

// Promisify socket API for easier operation sequencing.
// TODO: Check for error and reject.
function socketCreate() {
  return new Promise(function(resolve, reject) {
    chrome.sockets.tcp.create({ persistent: true }, resolve);
  });
}

function socketConnect(s, host, port) {
  return new Promise(function(resolve, reject) {
    chrome.sockets.tcp.connect(s, host, port, resolve);
  });
}

function socketSend(s, data) {
  return new Promise(function(resolve, reject) {
    chrome.sockets.tcp.send(s, data, resolve);
  });
}

chrome.runtime.onConnectExternal.addListener(function(port) {
  port.onMessage.addListener(function(msg) {
    if (!port.state) {
      port.state = msg;

      port.chain = socketCreate().then(function(info) {
        port.socket = info.socketId;
        mapSocketToPort[port.socket] = port;
        return socketConnect(port.socket, 'httpbin.org', 80);
      }).then(function() {
        // TODO: Layer TLS if needed.
      }).then(function() {
        // TODO: Build headers from the request.
        // TODO: Use Transfer-Encoding: chunked.
        var headers =
            'PUT /put HTTP/1.0

' +
            'Host: httpbin.org

' +
            'Content-Length: 17

' +
            '

';
        return socketSend(port.socket, new TextEncoder('utf-8').encode(headers).buffer);
      });
    }
    else {
      if (msg) {
        port.chain = port.chain.then(function() {
          // TODO: Use chunked encoding.
          return socketSend(port.socket, new TextEncoder('utf-8').encode(msg).buffer);
        });
      }
    }
  });
});

[cc lang="javascript"]

<P>当我在安装了应用程序的Chrome浏览器中加载此网页时，httpbin返回：</P>[cc lang="javascript"]HTTP/1.1 200 OK
Server: nginx
Date: Sun, 19 Jun 2016 16:54:23 GMT
Content-Type: application/json
Content-Length: 240
Connection: close
Access-Control-Allow-Origin: *
Access-Control-Allow-Credentials: true

{
 "args": {},
 "data":"how now brown cow",
 "files": {},
 "form": {},
 "headers": {
   "Content-Length":"17",
   "Host":"httpbin.org"
  },
 "json": null,
 "origin":"[redacted]",
 "url":"http://httpbin.org/put"
}

(function init() {
  var interval, reader, stream, curr, len = 0,
    totalBytes = 8000 * 8,
    data ="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
    randomData = function randomData() {
      var encoder = new TextEncoder();
      var currentStream ="";
      for (var i = 0; i < 8000; i++) {
        currentStream += data[Math.floor(Math.random() * data.length)]
      }
      return encoder.encode(currentStream)
    },
    // optionally reconnect to stream if cancelled
    reconnect = function reconnect() {
      connectButton.disabled = false;
      startup()
    };

  // Define"global" variables

  var connectButton = null;
  var disconnectButton = null;
  var messageInputBox = null;
  var receiveBox = null;

  var localConnection = null; // RTCPeerConnection for our"local" connection
  // adjust this to remote address; or use `ServiceWorker` `onfetch`; other
  var remoteConnection = null; // RTCPeerConnection for the"remote"

  var sendChannel = null; // RTCDataChannel for the local (sender)
  var receiveChannel = null; // RTCDataChannel for the remote (receiver)

  // Functions

  // Set things up, connect event listeners, etc.

  function startup() {
    connectButton = document.getElementById("connectButton");
    disconnectButton = document.getElementById("disconnectButton");
    messageInputBox = document.getElementById("message");
    receiveBox = document.getElementById("receivebox");

    // Set event listeners for user interface widgets

    connectButton.addEventListener("click", connectPeers, false);
    disconnectButton.addEventListener("click", disconnectPeers, false);
  }

  // Connect the two peers. Normally you look for and connect to a remote
  // machine here, but we"re just connecting two local objects, so we can
  // bypass that step.

  function connectPeers() {
    // Create the local connection and its event listeners
    if (len < totalBytes) {
      localConnection = new RTCPeerConnection();

      // Create the data channel and establish its event listeners
      sendChannel = localConnection.createDataChannel("sendChannel");
      sendChannel.onopen = handleSendChannelStatusChange;
      sendChannel.onclose = handleSendChannelStatusChange;

      // Create the remote connection and its event listeners

      remoteConnection = new RTCPeerConnection();
      remoteConnection.ondatachannel = receiveChannelCallback;

      // Set up the ICE candidates for the two peers

      localConnection.onicecandidate = e =>
        !e.candidate || remoteConnection.addIceCandidate(e.candidate)
      .catch(handleAddCandidateError);

      remoteConnection.onicecandidate = e =>
        !e.candidate || localConnection.addIceCandidate(e.candidate)
      .catch(handleAddCandidateError);

      // Now create an offer to connect; this starts the process

      localConnection.createOffer()
      .then(offer => localConnection.setLocalDescription(offer))
      .then(() => remoteConnection
                 .setRemoteDescription(localConnection.localDescription)
       )
      .then(() => remoteConnection.createAnswer())
      .then(answer => remoteConnection
                      .setLocalDescription(answer)
       )
      .then(() => localConnection
                 .setRemoteDescription(remoteConnection.localDescription)
      )
      // start streaming connection
      .then(sendMessage)
      .catch(handleCreateDescriptionError);
    } else {

      alert("total bytes streamed:" + len)
    }

  }

  // Handle errors attempting to create a description;
  // this can happen both when creating an offer and when
  // creating an answer. In this simple example, we handle
  // both the same way.

  function handleCreateDescriptionError(error) {
    console.log("Unable to create an offer:" + error.toString());
  }

  // Handle successful addition of the ICE candidate
  // on the"local" end of the connection.

  function handleLocalAddCandidateSuccess() {
    connectButton.disabled = true;
  }

  // Handle successful addition of the ICE candidate
  // on the"remote" end of the connection.

  function handleRemoteAddCandidateSuccess() {
    disconnectButton.disabled = false;
  }

  // Handle an error that occurs during addition of ICE candidate.

  function handleAddCandidateError() {
    console.log("Oh noes! addICECandidate failed!");
  }

  // Handles clicks on the"Send" button by transmitting
  // a message to the remote peer.

  function sendMessage() {

    stream = new ReadableStream({
      start(controller) {
          interval = setInterval(() => {
            if (sendChannel) {
              curr = randomData();
              len += curr.byteLength;
              // queue current stream
              controller.enqueue([curr, len, sendChannel.send(curr)]);

              if (len >= totalBytes) {
                controller.close();
                clearInterval(interval);
              }
            }
          }, 1000);
        },
        pull(controller) {
          // do stuff during stream
          // call `releaseLock()` if `diconnect` button clicked
          if (!sendChannel) reader.releaseLock();
        },
        cancel(reason) {
          clearInterval(interval);
          console.log(reason);
        }
    });

    reader = stream.getReader({
      mode:"byob"
    });

    reader.read().then(function process(result) {
        if (result.done && len >= totalBytes) {
          console.log("Stream done!");
          connectButton.disabled = false;
          if (len < totalBytes) reconnect();
          return;
        }

        if (!result.done && result.value) {
          var [currentStream, totalStreamLength] = [...result.value];
        }

        if (result.done && len < totalBytes) {
          throw new Error("stream cancelled")
        }

        console.log("currentStream:", currentStream
                   ,"totalStremalength:", totalStreamLength
                   ,"result:", result);
        return reader.read().then(process);
      })
      .catch(function(err) {
        console.log("catch stream cancellation:", err);
        if (len < totalBytes) reconnect()
      });

    reader.closed.then(function() {
      console.log("stream closed")
    })

  }

  // Handle status changes on the local end of the data
  // channel; this is the end doing the sending of data
  // in this example.

  function handleSendChannelStatusChange(event) {
    if (sendChannel) {
      var state = sendChannel.readyState;

      if (state ==="open") {
        disconnectButton.disabled = false;
        connectButton.disabled = true;
      } else {
        connectButton.disabled = false;
        disconnectButton.disabled = true;
      }
    }
  }

  // Called when the connection opens and the data
  // channel is ready to be connected to the remote.

  function receiveChannelCallback(event) {
    receiveChannel = event.channel;
    receiveChannel.onmessage = handleReceiveMessage;
    receiveChannel.onopen = handleReceiveChannelStatusChange;
    receiveChannel.onclose = handleReceiveChannelStatusChange;
  }

  // Handle onmessage events for the receiving channel.
  // These are the data messages sent by the sending channel.

  function handleReceiveMessage(event) {
    var decoder = new TextDecoder();
    var data = decoder.decode(event.data);
    var el = document.createElement("p");
    var txtNode = document.createTextNode(data);

    el.appendChild(txtNode);
    receiveBox.appendChild(el);
  }

  // Handle status changes on the receiver"s channel.

  function handleReceiveChannelStatusChange(event) {
    if (receiveChannel) {
      console.log("Receive channel's status has changed to" +
        receiveChannel.readyState);
    }

    // Here you would do stuff that needs to be done
    // when the channel"s status changes.
  }

  // Close the connection, including data channels if they"re open.
  // Also update the UI to reflect the disconnected status.

  function disconnectPeers() {

    // Close the RTCDataChannels if they"re open.

    sendChannel.close();
    receiveChannel.close();

    // Close the RTCPeerConnections

    localConnection.close();
    remoteConnection.close();

    sendChannel = null;
    receiveChannel = null;
    localConnection = null;
    remoteConnection = null;

    // Update user interface elements


    disconnectButton.disabled = true;
    // cancel stream on `click` of `disconnect` button,
    // pass `reason` for cancellation as parameter
    reader.cancel("stream cancelled");
  }

  // Set up an event listener which will run the startup
  // function once the page is done loading.

  window.addEventListener("load", startup, false);
})();

var count = 0, total = 0, timer = null, d = 500, stop = false, p = void 0
, request = function request () {
              return new XMLHttpRequest()
            };
function sendData() {
  p = Promise.resolve(generateSomeBinaryData()).then(function(data) {
    var currentRequest = request();
    currentRequest.open("POST","http://example.com");
    currentRequest.onload = function () {
      ++count; // increment `count`
      total += data.byteLength; // increment total bytes posted to server
    }

    currentRequest.onloadend = function () {
      if (stop) { // stop recursion
        throw new Error("aborted") // `throw` error to `.catch()`
      } else {
        timer = setTimeout(sendData, d); // recursively call `sendData`
      }
    }
    currentRequest.send(data); // `data`: `Uint8Array`; `TypedArray`
    return currentRequest; // return `currentRequest`
  });
  return p // return `Promise` : `p`
}

var curr = sendData();

curr.then(function(current) {
  console.log(current) // current post request
})
.catch(function(err) {
  console.log(e) // handle aborted `request`; errors
});