Re: Mastering TS Net
With TSGetNet, is it possible to just get the "status code" ("200" is good,
"404" it bad, among other things)
Of a file on a webserver, *before* you download it? If it is a 404 you "bail on
the operation", in form the user "Not Found" but if it is 200, continue to
stream it?
Brahmanathaswami
On 7/2/18, 5:19 AM, "use-livecode on behalf of Sannyasin Brahmanathaswami via
use-livecode" wrote:
I looked at the lesson. Quite good!
I think one more lesson may be useful.
In my case I will use a "slide show" as a use case.
(But there others, thinking of streaming music playlist)
1) Assume you have the URLs for a slideshow;
2) you fetch this by calling JSON/Text file with the urls for a slide show
which exists on the server.
3) Let say you have 100 slides/URLs
4) Galleria (our web app jquery/html5) uses "lazyload 3" parameter, which
asynchronously loads the next the 3 slides (besides the one you are viewing) in
the background, then users view the next slide (already downloaded) -there is
no delay.
So, with TSNetGet
How would set this up Livecode?
You don't want to "overwhelm" the phone with async calls to 100
connections/slide. (Galleria suggests "3")
But there is the advantage of taking the call back message, get 3 at a
time, store them in the documents folder, finally the user has the slides show
on his phone, later he can view it off line.
At the retrieval of the 100th slide, then we informed the user "Slideshow
is download complete."
It the user "bails" on slide 36, when he comes back again. TSNetGet starts
over but the only which slide 37.
That last part may not want to part of your lessons. Though it would be
easy enough to check "these is a file" and if it is true, then TSGetNet, so
"next repeat" without downloading.
I could work this out myself, but is such a common use case, everyone would
benefit from it.
Brahmanathaswami
On 7/1/18, 3:40 PM, "use-livecode on behalf of Charles Warwick via
use-livecode" wrote:
If you can’t quite find an example lesson that answers what you need,
let me know and I will get one organised.
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Re: Mastering TS Net
Like Jacque mentioned, I don't think you need to bother with tsNet for
local files since they should be almost instantly loaded.
I too struggled with tsNet when I first tried to implement it, but
this website helped me more than the LiveCode pages:
https://www.techstrategies.com.au/tsnet-resources/
The problem you are encountering is that you can only have one unique
ID referenced at a time (first parameter). If you try to make another
call using that ID before the first call is returned then you'll get
an error. Once a call with the ID has been finished (successful or
not), that ID is recycled and available for use again.
The documentation doesn't explain well (in my initial understanding)
that this doesn't have to be "1" or even a number. I experimented with
random(1) as my pID before encountering that same "ID already in
use" error and discovered that for most of my uses I could just
hard-code a text based ID that made more sense to me when
troubleshooting like "get new image" or "check for updates" or even
some variable with a unique value (like your tFileName).
--Andrew Bell
Date: Sun, 1 Jul 2018 15:19:34 +
From: Sannyasin Brahmanathaswami
To: How LiveCode
Subject: Mastering TS Net
Message-ID:
Content-Type: text/plain; charset="utf-8"
I really need to get my head around TSNet, so began experiments.
This is the documentation for tsNetGetFile
" local tHeaders, tResult
put tsNetGetFile("1", "/path/to/downloaded/file.dat", \
"ftp://user:p...@ftp.example.com/file.dat;, tHeaders, \
"transferComplete") into tResult
on transferComplete pID, pResult, pBytes, pCurlCode
local tData, tHeaders
if pCurlCode is not 0 then
answer tsNetRetrError(pID)
else
a nswer "File has been downloaded"
end if
tsNetCloseConn pID
end transferComplete
# but my first attempt to "get it" ... ran into this error.
Are there any good lessons on all TSNet functions?
I am not looking forward to wading into this blind as a bat.
# variable watcher
tResult --tsneterr: ID already in use
what is strange is this, the IDE gives the error even before tracing
the mouseup.
So I did not even get off home plate.
local tHeaders, tResult
on mouseup
# put a break here... the IDE show an error *before* stepping into
the next statement
# I can't even close the connection with:
tsNetCloseConn "1"
put empty into tResult
put fld aURL into pURL
put empty into fld "fldHTTPHeader"
put empty into fld "tHTMLfield"
set the itemDel to "/"
put item -1 of pURL into tFileName
put ("~/Desktop/") into tLocalFile
put tsNetGetFile("1",tLocalFile,pURL,tHeaders,"transferComplete")
into tResult
-- put libURLLastHTTPHeaders() into fld "fldHTTPHeader"
end mouseup
on transferComplete pID, pResult, pBytes, pCurlCode
if pCurlCode is not 0 then
answer tsNetRetrError(pID)
else
answer "File has been downloaded"
put tHeaders into fld "fldHTTPHeader"
end if
tsNetCloseConn pID
end transferComplete
BR
Date: Sun, 01 Jul 2018 13:00:44 -0500
From: "J. Landman Gay"
To: How to use LiveCode
Subject: Re: Mastering TS Net
Message-ID:
<16457010ce0.285b.5e131b4e58299f54a9f0b9c05d4f0...@hyperactivesw.com>
Content-Type: text/plain; format=flowed; charset="us-ascii"
Does TSNet even work with local files? For local files use the read/write
commands or "get/put url".
With a commercial license you shouldn't need to deal with the lower level
functions for internet communication. The basic put, post, and get commands
should do it.
--
Jacqueline Landman Gay | jac...@hyperactivesw.com
HyperActive Software | http://www.hyperactivesw.com
On July 1, 2018 10:21:38 AM Sannyasin Brahmanathaswami via use-livecode
wrote:
tResult --tsneterr: ID already in use
what is strange is this, the IDE gives the error even before tracing the
mouseup.
So I did not even get off home plate.
local tHeaders, tResult
on mouseup
# put a break here... the IDE show an error *before* stepping into the next
statement
# I can't even close the connection with:
tsNetCloseConn "1"
put empty into tResult
put fld aURL into pURL
put empty into fld "fldHTTPHeader"
put empty into fld "tHTMLfield"
set the itemDel to "/"
put item -1 of pURL into tFileName
put ("~/Desktop/") into tLocalFile
put tsNetGetFile("1",tLocalFile,pURL,tHeaders,"transferComplete")
into tResult
-- put libURLLastHTTPHeaders() into fld "fldHTTPHeader"
end mouseup
on transferComplete pID, pResult, pBytes, pCurlCode
if pCurlCode is not 0 then
Re: Mastering TS Net
I looked at the lesson. Quite good! I think one more lesson may be useful. In my case I will use a "slide show" as a use case. (But there others, thinking of streaming music playlist) 1) Assume you have the URLs for a slideshow; 2) you fetch this by calling JSON/Text file with the urls for a slide show which exists on the server. 3) Let say you have 100 slides/URLs 4) Galleria (our web app jquery/html5) uses "lazyload 3" parameter, which asynchronously loads the next the 3 slides (besides the one you are viewing) in the background, then users view the next slide (already downloaded) -there is no delay. So, with TSNetGet How would set this up Livecode? You don't want to "overwhelm" the phone with async calls to 100 connections/slide. (Galleria suggests "3") But there is the advantage of taking the call back message, get 3 at a time, store them in the documents folder, finally the user has the slides show on his phone, later he can view it off line. At the retrieval of the 100th slide, then we informed the user "Slideshow is download complete." It the user "bails" on slide 36, when he comes back again. TSNetGet starts over but the only which slide 37. That last part may not want to part of your lessons. Though it would be easy enough to check "these is a file" and if it is true, then TSGetNet, so "next repeat" without downloading. I could work this out myself, but is such a common use case, everyone would benefit from it. Brahmanathaswami On 7/1/18, 3:40 PM, "use-livecode on behalf of Charles Warwick via use-livecode" wrote: If you can’t quite find an example lesson that answers what you need, let me know and I will get one organised. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Mastering TS Net
Charles: Mysteries
I booted Livecode fresh the morning, and used the same script. But I no longer
get
tResult --tsneterr: ID already in use.
Dictionary script works as expected "File downloaded"
local tHeaders, tResult
on mouseup
tsNetCloseConn "1"
put empty into tResult
put fld aURL into pURL
put empty into fld "fldHTTPHeader"
put empty into fld "tHTMLfield"
set the itemDel to "/"
put item -1 of pURL into tFileName
put ("/Users/brahmanathaswami/Desktop/") into tLocalFile
put tsNetGetFile("1",tLocalFile,pURL,tHeaders,"transferComplete") into
tResult
-- put libURLLastHTTPHeaders() into fld "fldHTTPHeader"
end mouseup
on transferComplete pID, pResult, pBytes, pCurlCode
if pCurlCode is not 0 then
answer tsNetRetrError(pID)
else
answer "File has been downloaded"
put tHeaders into fld "fldHTTPHeader"
end if
tsNetCloseConn pID
end transferComplete
># variable watcher
>
> tResult --tsneterr: ID already in use
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Re: Mastering TS Net
@Charles: Thanks, I look into lessons.
But, using the dictionary example
Why do we get the
> # variable watcher
>
> tResult --tsneterr: ID already in use
Even *before* the trace the script? I have break
On mouseup
But it gives this error even before starting the trace?
@ Jacqueline: why use TSNet:
1) because the "libURLLastRHHeaders()" are only available to desktop. And I
want to see them on mobile
2) because we are working with the "cloud" and async download means I can pass
array to TSNet to open connection to download several files at once; like
"load" but with more control... ( I think. I have yet to study it out) and get
the headers.
Brahmanathaswami
On 7/1/18, 3:40 PM, "use-livecode on behalf of Charles Warwick via
use-livecode" wrote:
Hi BR,
There are a series of lessons on tsNet on the LiveCode website:
http://lessons.livecode.com/m/4071/c/235433
If you are looking for an example of how to download something direct to a
file, the lesson called “How to asynchronously download via SFTP directly a
file” should help.
The same concepts apply for downloading to a file regardless of the
protocol being used.
If you can’t quite find an example lesson that answers what you need, let
me know and I will get one organised.
Regards,
Charles
> On 2 Jul 2018, at 1:19 am, Sannyasin Brahmanathaswami via use-livecode
wrote:
>
> I really need to get my head around TSNet, so began experiments.
>
> This is the documentation for tsNetGetFile
>
> " local tHeaders, tResult
>
> put tsNetGetFile("1", "/path/to/downloaded/file.dat", \
> "ftp://user:p...@ftp.example.com/file.dat;, tHeaders, \
> "transferComplete") into tResult
>
> on transferComplete pID, pResult, pBytes, pCurlCode
>local tData, tHeaders
>if pCurlCode is not 0 then
>answer tsNetRetrError(pID)
>else
>answer "File has been downloaded"
>end if
>tsNetCloseConn pID
> end transferComplete
>
> # but my first attempt to "get it" ... ran into this error.
>
> Are there any good lessons on all TSNet functions?
> I am not looking forward to wading into this blind as a bat.
>
> # variable watcher
>
> tResult --tsneterr: ID already in use
>
> what is strange is this, the IDE gives the error even before tracing the
mouseup.
>
> So I did not even get off home plate.
>
>
> local tHeaders, tResult
>
> on mouseup
> # put a break here... the IDE show an error *before* stepping into the
next statement
> # I can't even close the connection with:
> tsNetCloseConn "1"
> put empty into tResult
> put fld aURL into pURL
> put empty into fld "fldHTTPHeader"
> put empty into fld "tHTMLfield"
> set the itemDel to "/"
> put item -1 of pURL into tFileName
> put ("~/Desktop/") into tLocalFile
> put tsNetGetFile("1",tLocalFile,pURL,tHeaders,"transferComplete") into
tResult
>
> -- put libURLLastHTTPHeaders() into fld "fldHTTPHeader"
> end mouseup
>
> on transferComplete pID, pResult, pBytes, pCurlCode
> if pCurlCode is not 0 then
> answer tsNetRetrError(pID)
> else
> answer "File has been downloaded"
> put tHeaders into fld "fldHTTPHeader"
> end if
> tsNetCloseConn pID
> end transferComplete
>
> BR
>
>
> ___
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Re: Mastering TS Net
Hi BR,
There are a series of lessons on tsNet on the LiveCode website:
http://lessons.livecode.com/m/4071/c/235433
If you are looking for an example of how to download something direct to a
file, the lesson called “How to asynchronously download via SFTP directly a
file” should help.
The same concepts apply for downloading to a file regardless of the protocol
being used.
If you can’t quite find an example lesson that answers what you need, let me
know and I will get one organised.
Regards,
Charles
> On 2 Jul 2018, at 1:19 am, Sannyasin Brahmanathaswami via use-livecode
> wrote:
>
> I really need to get my head around TSNet, so began experiments.
>
> This is the documentation for tsNetGetFile
>
> " local tHeaders, tResult
>
> put tsNetGetFile("1", "/path/to/downloaded/file.dat", \
> "ftp://user:p...@ftp.example.com/file.dat;, tHeaders, \
> "transferComplete") into tResult
>
> on transferComplete pID, pResult, pBytes, pCurlCode
>local tData, tHeaders
>if pCurlCode is not 0 then
>answer tsNetRetrError(pID)
>else
>answer "File has been downloaded"
>end if
>tsNetCloseConn pID
> end transferComplete
>
> # but my first attempt to "get it" ... ran into this error.
>
> Are there any good lessons on all TSNet functions?
> I am not looking forward to wading into this blind as a bat.
>
> # variable watcher
>
> tResult --tsneterr: ID already in use
>
> what is strange is this, the IDE gives the error even before tracing the
> mouseup.
>
> So I did not even get off home plate.
>
>
> local tHeaders, tResult
>
> on mouseup
> # put a break here... the IDE show an error *before* stepping into the next
> statement
> # I can't even close the connection with:
> tsNetCloseConn "1"
> put empty into tResult
> put fld aURL into pURL
> put empty into fld "fldHTTPHeader"
> put empty into fld "tHTMLfield"
> set the itemDel to "/"
> put item -1 of pURL into tFileName
> put ("~/Desktop/") into tLocalFile
> put tsNetGetFile("1",tLocalFile,pURL,tHeaders,"transferComplete") into
> tResult
>
> -- put libURLLastHTTPHeaders() into fld "fldHTTPHeader"
> end mouseup
>
> on transferComplete pID, pResult, pBytes, pCurlCode
> if pCurlCode is not 0 then
> answer tsNetRetrError(pID)
> else
> answer "File has been downloaded"
> put tHeaders into fld "fldHTTPHeader"
> end if
> tsNetCloseConn pID
> end transferComplete
>
> BR
>
>
> ___
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> Please visit this url to subscribe, unsubscribe and manage your subscription
> preferences:
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Re: Mastering TS Net
Does TSNet even work with local files? For local files use the read/write
commands or "get/put url".
With a commercial license you shouldn't need to deal with the lower level
functions for internet communication. The basic put, post, and get commands
should do it.
--
Jacqueline Landman Gay | jac...@hyperactivesw.com
HyperActive Software | http://www.hyperactivesw.com
On July 1, 2018 10:21:38 AM Sannyasin Brahmanathaswami via use-livecode
wrote:
I really need to get my head around TSNet, so began experiments.
This is the documentation for tsNetGetFile
" local tHeaders, tResult
put tsNetGetFile("1", "/path/to/downloaded/file.dat", \
"ftp://user:p...@ftp.example.com/file.dat;, tHeaders, \
"transferComplete") into tResult
on transferComplete pID, pResult, pBytes, pCurlCode
local tData, tHeaders
if pCurlCode is not 0 then
answer tsNetRetrError(pID)
else
a nswer "File has been downloaded"
end if
tsNetCloseConn pID
end transferComplete
# but my first attempt to "get it" ... ran into this error.
Are there any good lessons on all TSNet functions?
I am not looking forward to wading into this blind as a bat.
# variable watcher
tResult --tsneterr: ID already in use
what is strange is this, the IDE gives the error even before tracing the
mouseup.
So I did not even get off home plate.
local tHeaders, tResult
on mouseup
# put a break here... the IDE show an error *before* stepping into the next
statement
# I can't even close the connection with:
tsNetCloseConn "1"
put empty into tResult
put fld aURL into pURL
put empty into fld "fldHTTPHeader"
put empty into fld "tHTMLfield"
set the itemDel to "/"
put item -1 of pURL into tFileName
put ("~/Desktop/") into tLocalFile
put tsNetGetFile("1",tLocalFile,pURL,tHeaders,"transferComplete") into tResult
-- put libURLLastHTTPHeaders() into fld "fldHTTPHeader"
end mouseup
on transferComplete pID, pResult, pBytes, pCurlCode
if pCurlCode is not 0 then
answer tsNetRetrError(pID)
else
answer "File has been downloaded"
put tHeaders into fld "fldHTTPHeader"
end if
tsNetCloseConn pID
end transferComplete
BR
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Mastering TS Net
I really need to get my head around TSNet, so began experiments.
This is the documentation for tsNetGetFile
" local tHeaders, tResult
put tsNetGetFile("1", "/path/to/downloaded/file.dat", \
"ftp://user:p...@ftp.example.com/file.dat;, tHeaders, \
"transferComplete") into tResult
on transferComplete pID, pResult, pBytes, pCurlCode
local tData, tHeaders
if pCurlCode is not 0 then
answer tsNetRetrError(pID)
else
a nswer "File has been downloaded"
end if
tsNetCloseConn pID
end transferComplete
# but my first attempt to "get it" ... ran into this error.
Are there any good lessons on all TSNet functions?
I am not looking forward to wading into this blind as a bat.
# variable watcher
tResult --tsneterr: ID already in use
what is strange is this, the IDE gives the error even before tracing the
mouseup.
So I did not even get off home plate.
local tHeaders, tResult
on mouseup
# put a break here... the IDE show an error *before* stepping into the next
statement
# I can't even close the connection with:
tsNetCloseConn "1"
put empty into tResult
put fld aURL into pURL
put empty into fld "fldHTTPHeader"
put empty into fld "tHTMLfield"
set the itemDel to "/"
put item -1 of pURL into tFileName
put ("~/Desktop/") into tLocalFile
put tsNetGetFile("1",tLocalFile,pURL,tHeaders,"transferComplete") into
tResult
-- put libURLLastHTTPHeaders() into fld "fldHTTPHeader"
end mouseup
on transferComplete pID, pResult, pBytes, pCurlCode
if pCurlCode is not 0 then
answer tsNetRetrError(pID)
else
answer "File has been downloaded"
put tHeaders into fld "fldHTTPHeader"
end if
tsNetCloseConn pID
end transferComplete
BR
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