• VinodM
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We are just started to play with the Streaming API, have succeffully created and been able to subscribe to a pushTopic. But for future reference how or where would one find out what topics have been created? 

  • August 29, 2012
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  • 0

1. Anyone know if the Streaming API is consumable by Authenticated Website licenses?

2. Do they fall into any outside categories pertaining to limits?

3. We'd like to set up a live chatroom for authenticated users utilizing custom objects with the Streaming API exposed in a portal. Anyone foresee any platform limitations?

 

Thanks

Chris

I built the Java/Bayaex example here:

http://www.salesforce.com/us/developer/docs/api_streaming/index_Left.htm#StartTopic=Content/code_sample_java_add_source.htm

 

After adding some waiting to the busy loop, adding my credentials (and after setting up a streaming topic in our SalesForce database), the example works great.  It authenticates, connects to the topic, and receives data as per normal until it gets to the 71st "heartbeat" connection, at which point it fails with the following message:

 

[CHANNEL:META_CONNECT]: {"id":"71","error":"402::Unknown client","successful":false,"advice":{"interval":500,"reconnect":"handshake"},"channel":"/meta/connect"}

 

Slightly more detailed error output says, Error during CONNECT: 402::Unknown client

 

The way we use the Streaming API client, we want it to always be up, and testing it overnight last night showed that after each connection error and restart, the client would get to the 70th heartbeat just fine, but on the 71st, it would have the same error each time.

 

(Our backend code processes the output of the streaming client and currently prints any messages received to a log file):

...

2012-03-26 16:32:42,316 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"67","successful":true,"channel":"/meta/connect"}
2012-03-26 16:34:32,117 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"68","successful":true,"channel":"/meta/connect"}
2012-03-26 16:36:22,174 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"69","successful":true,"channel":"/meta/connect"}
2012-03-26 16:36:55,122 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"70","successful":true,"channel":"/meta/connect"}
2012-03-26 16:36:55,630 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"71","error":"402::Unknown client","successful":false,"advice":{"interval":500,"reconnect":"handshake"},"channel":"/meta/connect"}
2012-03-26 16:36:56,143 - DEBUG - Received stream data: Error during CONNECT: 402::Unknown client
2012-03-26 16:36:56,658 - DEBUG - Received stream data: Exiting...
2012-03-26 16:37:04,791 - WARNING - Status poll of StreamingAPI indicates status '1'- not alive.

Is this normal behavior?  Has anyone run into this before?

 

-Max

so, my app is working.. but I notice that sometimes after receiving the event, I add some more code and recycle the app,

and I get a recurrance of the event that just processed.

 

If I wait 3-5 minutes (not tracking time really), then I don't get a recurrance.

 

is there an event lifetime I need to think about?

 

  • March 02, 2012
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We are just started to play with the Streaming API, have succeffully created and been able to subscribe to a pushTopic. But for future reference how or where would one find out what topics have been created? 

  • August 29, 2012
  • Like
  • 0

Hi, 

 

   I am trying to implement real time web services to retrieve a column from Salesforce.  I am able to make successful calls. But If i cross 3600 logins with in an hour, it is throwing me invalid login exception. ("Application Login Rate Exceeded"). What is the best way to implement the realtime calls ? 

 

Thanks 

Does anyone know if it is possible to use the new Streaming API with Sites?  I've got a working example going with a logged in user, getting push to a visualforce page.  It doesn't appear there is the ability to give the Sites User's profile read rights to the standard object "Push Topics."  

 

So I'm thinking this might be done using OAuth, and just seeing if anyone had any input on this?  

 

Thanks,

Josh

Hey everybody!

 

I'm currently working with the BULK API and I would like Salesforce to send me a message once the Job completes or aborts.

 

Is there any way to do this with the Streaming API or other mechanism?

 

Thanks in advance!

 

Regards,

Gabriel

Hi,

 

Is it anyhow possible to find out who is listening to a specific topic? Didn't found out anything which could be helpful on the clientside.

  • May 07, 2012
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  • 0

1. Anyone know if the Streaming API is consumable by Authenticated Website licenses?

2. Do they fall into any outside categories pertaining to limits?

3. We'd like to set up a live chatroom for authenticated users utilizing custom objects with the Streaming API exposed in a portal. Anyone foresee any platform limitations?

 

Thanks

Chris

We are integrating Salesforce data into our own system by using PushTopics that notify create/update events for objects, but how should we catch delete events? Do we need to setup triggers to maintain a delete log and then setup another PushTopic for the log, or is there a simpler way to do this?

  • April 24, 2012
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  • 0

We have a cron job that runs every half hour to verify the status of our Streaming API client and to make sure it's connected to SalesForce.  Last night between 2:30 AM and 4:30 AM (central time), I received several notifications that the Streaming Client was not happy.

 

I'm investigating this morning and I see a lot of errors involving empty responses and failed connections to the Streaming API via the Bayeux Client.  Error events occurred during an oauth attempt's Soap call around 2:18 AM.

 

After several errors and restarts, and after the final restart at 4:18 AM, the StreamingAPI, our listener, the Bayeux Client, and every other piece has been happy and 100% functional.  It's been running perfectly well for about 5.5 hours now so there was something transient that took place that I'd just like to understand better.

 

The oauth that started this whole error snowball was a part of a Rest API call, but when that failed, we shut down the entire process.  On restart, the Streaming API connection failed. (Up until that point, there had been no errors and everything had been up and working 100% for around 11 hours according to our logs.)

2012-04-03 02:17:51,743 - ERROR - Stopping because of error- Traceback (most recent call last):
  File "/usr/local/svn/SalesForceLicensing/RestingDaemon/src/resting_daemon.py", line 560, in <module>
    oauth=authenticate(verbose=False)
  File "/usr/local/svn/SalesForceLicensing/RestingDaemon/src/resting_daemon.py", line 50, in authenticate
    data = urllib2.urlopen(token_url, params).read()
  File "/opt/python-2.7.2/lib/python2.7/urllib2.py", line 126, in urlopen
    return _opener.open(url, data, timeout)
  File "/opt/python-2.7.2/lib/python2.7/urllib2.py", line 394, in open
    response = self._open(req, data)
  File "/opt/python-2.7.2/lib/python2.7/urllib2.py", line 412, in _open
    '_open', req)
  File "/opt/python-2.7.2/lib/python2.7/urllib2.py", line 372, in _call_chain
    result = func(*args)
  File "/opt/python-2.7.2/lib/python2.7/urllib2.py", line 1207, in https_open
    return self.do_open(httplib.HTTPSConnection, req)
  File "/opt/python-2.7.2/lib/python2.7/urllib2.py", line 1174, in do_open
    raise URLError(err)
URLError: <urlopen error [Errno -3] Temporary failure in name resolution>
2012-04-03 02:17:51,744 - INFO - License Signer terminating subprocesses
2012-04-03 02:17:52,760 - DEBUG - Verifying subprocess pid 6104 is dead
2012-04-03 02:17:52,760 - INFO - Shutdown complete.

 

That killed it good, so it wasn't until 2:30 AM when the next Cron job came along to restart the process that we saw:

2012-04-03 02:30:01,656 - INFO - SalesForce License Signer Started
2012-04-03 02:30:01,657 - INFO - Version Info: [$Id: resting_daemon.py 35 2012-04-02 19:53:19Z mmagee $]
2012-04-03 02:30:01,671 - DEBUG - Starting Streaming API listener
2012-04-03 02:30:56,043 - DEBUG - Received stream data: 2012-04-03 02:30:55.713:WARN::CONNECTION FAILED ContentExchange@6182315=POST//test.salesforce.com:443//services/Soap/u/22.0/#9
2012-04-03 02:30:56,044 - ERROR - Found CONNECTION FAILED message: 2012-04-03 02:30:55.713:WARN::CONNECTION FAILED ContentExchange@6182315=POST//test.salesforce.com:443//services/Soap/u/22.0/#9
To be continued on the next post...

I built the Java/Bayaex example here:

http://www.salesforce.com/us/developer/docs/api_streaming/index_Left.htm#StartTopic=Content/code_sample_java_add_source.htm

 

After adding some waiting to the busy loop, adding my credentials (and after setting up a streaming topic in our SalesForce database), the example works great.  It authenticates, connects to the topic, and receives data as per normal until it gets to the 71st "heartbeat" connection, at which point it fails with the following message:

 

[CHANNEL:META_CONNECT]: {"id":"71","error":"402::Unknown client","successful":false,"advice":{"interval":500,"reconnect":"handshake"},"channel":"/meta/connect"}

 

Slightly more detailed error output says, Error during CONNECT: 402::Unknown client

 

The way we use the Streaming API client, we want it to always be up, and testing it overnight last night showed that after each connection error and restart, the client would get to the 70th heartbeat just fine, but on the 71st, it would have the same error each time.

 

(Our backend code processes the output of the streaming client and currently prints any messages received to a log file):

...

2012-03-26 16:32:42,316 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"67","successful":true,"channel":"/meta/connect"}
2012-03-26 16:34:32,117 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"68","successful":true,"channel":"/meta/connect"}
2012-03-26 16:36:22,174 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"69","successful":true,"channel":"/meta/connect"}
2012-03-26 16:36:55,122 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"70","successful":true,"channel":"/meta/connect"}
2012-03-26 16:36:55,630 - DEBUG - Received stream data: [CHANNEL:META_CONNECT]: {"id":"71","error":"402::Unknown client","successful":false,"advice":{"interval":500,"reconnect":"handshake"},"channel":"/meta/connect"}
2012-03-26 16:36:56,143 - DEBUG - Received stream data: Error during CONNECT: 402::Unknown client
2012-03-26 16:36:56,658 - DEBUG - Received stream data: Exiting...
2012-03-26 16:37:04,791 - WARNING - Status poll of StreamingAPI indicates status '1'- not alive.

Is this normal behavior?  Has anyone run into this before?

 

-Max

I wonder if i need to do any setting changes for Streaming API to work in Sandbox, because the exact same settings works fine in Dev org but not in Sandbox. 

Streaming API is enabled for the sandbox thats confirmed.

so, my app is working.. but I notice that sometimes after receiving the event, I add some more code and recycle the app,

and I get a recurrance of the event that just processed.

 

If I wait 3-5 minutes (not tracking time really), then I don't get a recurrance.

 

is there an event lifetime I need to think about?

 

  • March 02, 2012
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  • 0

We have several customers who are now getting the following error:

 

"all SObjects in create or update must of same type"

 

I am trying to run down the instances affected but the common element is that these Update and Insert api calls were working fine on Friday but now do not work on Monday.

 

We are busy collecting the SOAP data to file a case but wondered if anyone else if experiencing these issues as well.

 

Thanks,

 

Bill Emerson