javascript binding in a browser
Hi Fraser,
I'm trying to run the proton javascript bindings from within a browser. I'm
getting various errors depending on the way I'm doing it and I was hoping you
could shed some light on the correct approach.
I have node recv.js running in a separate window.
The first way I tried was just including proton.js directly. When I load the
page the console shows the following for the HTML listed below:
pre-main prep time: 6 ms
proton is [object Object]
before put
Uncaught TypeError: Cannot read property 'fa' of null
Uncaught TypeError: Cannot read property 'fa' of null
Here is the HTML:
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Strict//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd;
html xmlns=http://www.w3.org/1999/xhtml;
head
titleAn XHTML 1.0 Strict standard template/title
meta http-equiv=content-type
content=text/html;charset=utf-8 /
script type=text/javascript
src=../../../node_modules/qpid-proton/lib/proton.js/script
script type=text/javascript
//![CDATA[
console.log(proton is + window.proton);
var address = amqp://0.0.0.0;
var subject = BrowserMessage;
var msgtext = Hello From Browser!;
var tracker = null;
var running = true;
var message = new proton.Message();
var messenger = new proton.Messenger();
var pumpData = function() {
var status = messenger.status(tracker);
if (status != proton.Status.PENDING) {
if (running) {
messenger.stop();
running = false;
}
}
if (messenger.isStopped()) {
message.free();
messenger.free();
}
};
messenger.on('error', function(error) {console.log(this is the error +
error);});
messenger.on('work', pumpData);
messenger.setOutgoingWindow(1024);
messenger.start();
message.setAddress(address);
message.setSubject(subject);
message.body = msgtext;
console.log(before put);
messenger.put(message);
//]]
/script
/head
body
/body
/html
The output in the window running node recv.js is:
[0x535398]:ERROR[-2] AMQP header mismatch: '' (connection aborted)
CONNECTION ERROR connection aborted (remote)
When I browserify the proton.js into qpid-proton-browser.js and load that file
instead, I get the following when the page loads:
Uncaught TypeError: Cannot read property 'replace' of undefined
proton is undefined
Uncaught ReferenceError: proton is not defined
The Uncaught TypeError is due to a referece to process.argv[1]. If I manually
edit the qpid-proton-browser.js file to define all the process properties that
it wants, I still get the proton is undefined error.
Do you know what I'm doing wrong?
Thanks,
-Ernie
Re: javascript binding in a browser
Hi again Ernie,
There's no real reason why it shouldn't work in a browser except that I
haven't tried it in a while, it tends to be easier to try things out
using node.js and doing some more browser tests was on my TODO list :-)
The error Uncaught TypeError: Cannot read property 'fa' of null is
less than helpful :-) that's 'cause it has been minified with closure.
I doubt that you are doing anything especially wrong it'll just be
something stupid I've done.
If you look in the CMake and set closure 0 in this bit:
LINK_FLAGS -s \EXPORT_NAME='proton'\ -s
\WEBSOCKET_SUBPROTOCOL='AMQPWSB10'\ -O2 --closure 1 --memory-init-file 0
and recompile you'll get a more useful error but TBH if you can bear
with me I'll try to take a look as it tomorrow, I can't do much this
evening 'cause I've been putting up a fence and I'm knackered :-)
I'll give you a ping when I've sorted it .
Frase
On 30/08/14 16:25, Ernest Allen wrote:
Hi Fraser,
I'm trying to run the proton javascript bindings from within a browser. I'm
getting various errors depending on the way I'm doing it and I was hoping you
could shed some light on the correct approach.
I have node recv.js running in a separate window.
The first way I tried was just including proton.js directly. When I load the
page the console shows the following for the HTML listed below:
pre-main prep time: 6 ms
proton is [object Object]
before put
Uncaught TypeError: Cannot read property 'fa' of null
Uncaught TypeError: Cannot read property 'fa' of null
Here is the HTML:
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Strict//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd;
html xmlns=http://www.w3.org/1999/xhtml;
head
titleAn XHTML 1.0 Strict standard template/title
meta http-equiv=content-type
content=text/html;charset=utf-8 /
script type=text/javascript
src=../../../node_modules/qpid-proton/lib/proton.js/script
script type=text/javascript
//![CDATA[
console.log(proton is + window.proton);
var address = amqp://0.0.0.0;
var subject = BrowserMessage;
var msgtext = Hello From Browser!;
var tracker = null;
var running = true;
var message = new proton.Message();
var messenger = new proton.Messenger();
var pumpData = function() {
var status = messenger.status(tracker);
if (status != proton.Status.PENDING) {
if (running) {
messenger.stop();
running = false;
}
}
if (messenger.isStopped()) {
message.free();
messenger.free();
}
};
messenger.on('error', function(error) {console.log(this is the error +
error);});
messenger.on('work', pumpData);
messenger.setOutgoingWindow(1024);
messenger.start();
message.setAddress(address);
message.setSubject(subject);
message.body = msgtext;
console.log(before put);
messenger.put(message);
//]]
/script
/head
body
/body
/html
The output in the window running node recv.js is:
[0x535398]:ERROR[-2] AMQP header mismatch: '' (connection aborted)
CONNECTION ERROR connection aborted (remote)
When I browserify the proton.js into qpid-proton-browser.js and load that file
instead, I get the following when the page loads:
Uncaught TypeError: Cannot read property 'replace' of undefined
proton is undefined
Uncaught ReferenceError: proton is not defined
The Uncaught TypeError is due to a referece to process.argv[1]. If I manually edit the
qpid-proton-browser.js file to define all the process properties that it wants, I still get the
proton is undefined error.
Do you know what I'm doing wrong?
Thanks,
-Ernie
[jira] [Created] (PROTON-657) OSX: build proton with homebrew openssl
Bozo Dragojevic created PROTON-657: -- Summary: OSX: build proton with homebrew openssl Key: PROTON-657 URL: https://issues.apache.org/jira/browse/PROTON-657 Project: Qpid Proton Issue Type: Improvement Components: proton-c Affects Versions: 0.7 Environment: OSX 10.9.4 Reporter: Bozo Dragojevic System supplied openssl deprecates practically all methods used by proton. Compile against openssl from homebrew which requires additional include and link directory. -- This message was sent by Atlassian JIRA (v6.2#6252)
[jira] [Updated] (PROTON-657) OSX: build proton with homebrew openssl
[ https://issues.apache.org/jira/browse/PROTON-657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Bozo Dragojevic updated PROTON-657: --- Attachment: 0001-PROTON-657-OSX-build-proton-with-homebrew-openssl.patch homebrew openssl is keg-only and to make it work with pkg-config one has to do something like: $ ln -s /usr/local/Cellar/openssl/1.0.1h/lib/pkgconfig/* /usr/local/lib/pkgconfig/ OSX: build proton with homebrew openssl --- Key: PROTON-657 URL: https://issues.apache.org/jira/browse/PROTON-657 Project: Qpid Proton Issue Type: Improvement Components: proton-c Affects Versions: 0.7 Environment: OSX 10.9.4 Reporter: Bozo Dragojevic Attachments: 0001-PROTON-657-OSX-build-proton-with-homebrew-openssl.patch System supplied openssl deprecates practically all methods used by proton. Compile against openssl from homebrew which requires additional include and link directory. -- This message was sent by Atlassian JIRA (v6.2#6252)
