 16 Oct 2015, Konstantin Olchanski, Info, midas JSON-RPC interface
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To improve on the existing HTTP "GET" based AJAX interface to MIDAS, I have been looking at other possible RPCs.
The JSON-RPC standard looks to be the most interesting and my experimental implementation now reached the point where other midas users are welcome to |
 29 Oct 2015, Konstantin Olchanski, Info, midas JSON-RPC interface
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>
> My implementation follows these internet standards:
>
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29 Oct 2015, Konstantin Olchanski, Info, javascript docs, midas JSON-RPC interface
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> JSON-RPC interface
For interfacing to MIDAS just from browser javascript, the user does not need to know anything about JSON-RPC, all the user-level mjsonrpc_xxx() functions |
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29 Oct 2015, Konstantin Olchanski, Info, synchronous ajax deprecated
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If using a synchronous AJAX call, such as "foo=ODBGet("/runinfo/state");", google chrome will prints this to the javascript console:
"Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/."
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29 Oct 2015, Amy Roberts, Info, synchronous ajax deprecated
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We're using mhttpd for calls that end up working better with asynchronous requests, and we've built up sort of a parallel, asynchronous library using javascript
Promises.
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30 Oct 2015, Stefan Ritt, Info, synchronous ajax deprecated
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> We're using mhttpd for calls that end up working better with asynchronous requests, and we've built up sort of a parallel, asynchronous library using
javascript Promises.
>
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02 Nov 2015, Konstantin Olchanski, Info, synchronous ajax deprecated
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> We're using mhttpd for calls that end up working better with asynchronous requests, and we've built up sort of a parallel, asynchronous library using
javascript Promises.
>
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02 Nov 2015, Konstantin Olchanski, Info, midas JSON-RPC interface
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> >
> > JSON-RPC My implementation follows these internet standards:
> >
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11 Nov 2015, Konstantin Olchanski, Info, merged: midas JSON-RPC interface
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The JSON RPC branch has been merged into main MIDAS. Other than adding new functions, there are no changes to existing MIDAS functionality.
This is the current JSON RPC schema: (from the MIDAS Help page)
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17 Nov 2015, Konstantin Olchanski, Info, synchronous ajax deprecated
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> > We're using mhttpd for calls that end up working better with asynchronous requests, and we've built up sort of a parallel, asynchronous library using
javascript Promises.
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18 Nov 2015, Amy Roberts, Info, synchronous ajax deprecated
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> Why don't you post the functions here so that we can have a look?
Here is (1) my promisified HTTP request function and (2) a function that uses the returned promises to build an asynchronous, sequential chain of requests |
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18 Nov 2015, Amy Roberts, Info, synchronous ajax deprecated
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> I checked again on browser compatibility:
>
> el6: firefox 38 - ok, google-chrome 27 - no
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18 Nov 2015, Konstantin Olchanski, Info, synchronous ajax deprecated
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> > Why don't you post the functions here so that we can have a look?
> Here is (1) my promisified HTTP request function and (2) a function that uses the returned promises to build an asynchronous, sequential chain of requests
to Midas.
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19 Nov 2015, Amy Roberts, Info, synchronous ajax deprecated
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> Right now the JSON-RPC client library does not check the return status of MIDAS calls themselves, i.e. ODBGet("/nonexistant") will go to Promise.resolve()
with
> the MIDAS db_find_key() status DB_NO_KEY instead of Promise.reject(). So some error handling in Promise.resolve() is still required.
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20 Nov 2015, Konstantin Olchanski, Info, documented, merged: midas JSON-RPC interface
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> The JSON RPC branch has been merged into main MIDAS.
The interface is now mostly documented, go here: https://midas.triumf.ca/MidasWiki/index.php/Mjsonrpc
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20 Nov 2015, Konstantin Olchanski, Info, midas wiki doxygen documentation links
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I updated the links on the midas wiki to the doxygen-generated documentation for MIDAS that you
get after running "git clone midas; cd midas; make dox; firefox html/index.html".
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26 Nov 2015, Konstantin Olchanski, Info, browser compatibility test: synchronous ajax deprecated
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> > I checked again on browser compatibility:
> >
> > el6: firefox 38 - ok, google-chrome 27 - no
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27 Nov 2015, Konstantin Olchanski, Info, synchronous ajax deprecated
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> > I checked again on browser compatibility:
> >
> > el6: firefox 38 - ok, google-chrome 27 - no
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27 Nov 2015, Konstantin Olchanski, Info, updated: note on midas history
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(update: resolve all FIXMEs, document the breakup of "structured banks")
This note documents the workings of the midas history.
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10 Dec 2015, Stefan Ritt, Info, Small change in loading .odb files
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A small change in loading .odb files has been implemented. When you load an array from a .odb file, the indices in each line were not evaluated, only the
complete array was loaded. In our experiment we need however to load only a few values, like some HV values for some channels but leaving the other values
as they are. I changed slightly the code of db_paste() to correctly evaluate the index in each line of the .odb file. This way one can write for example |