Most server-client communication on the web is based on a request and response structure. The client sends a request to the server and the server responds to this request. The WebSocket protocol provides a two-way channel of communication between a server and client, allowing servers to send messages to clients without first receiving a request. For more information on the WebSocket protocol and its implementation in InterSystems IRIS, see the links below.
I am trying to create an ODBC class that includes all of these as records, but I don't see how I can since the first record has 3 subscripts, the rest have 4 subscripts:
I connected the Cache from Power BI using ODBC connection. And I can able to view the tables but I could't able to view the data records. getting some error when I shoot on the table name. I couldn't trace what I'm missing. Please help me.
Error Message: "Value cannot be null. Parameter name: exceptionType"
$LIST string format and %DynamicArray and %DynamicObject classes
IRIS, and previously Cache, contain several different ways to create a sequence containing a mixture of data values. A data sequence that has been available for many years is the $LIST string. Another more recent data sequence is the %DynamicArray class, which along with the %DynamicObject class, is part of the IRIS support for JSON string representation. These two sequences involve very different tradeoffs.
Forgive my lack of understanding, but I am working on a vendor created Cache database and the indexes specified in the classes for ODBC connections are not working. A few of them are created, but of the 50+ classes we have, only a handful of them are created when the class is compiled, yet no errors occur.
"SELECT * FROM wmhISTORYdETAIL" runs as a passthrough without asking for the DNS.
but
'SELECT Count([wmhISTORYdETAIL].[HistHMNumber] AS CountOfHistHMNumber FROM [wmhISTORYdETAIL] WHERE ((([wmhISTORYdETAIL].[HistMovType])='Receipt') AND (([wmhISTORYdETAIL].[HistMovDate])>=Date()-1) AND (([wmhISTORYdETAIL].[HistMovDate])<Date()));'
asks for the DNS but both are linked to a table that has the password saved.
I want to consume external websocket api, URL looks like this:
wss://site.com/ws/v2/?&token=<token>
Checked with external tool (Simple WebSocket Client) that websocket works and I can consume the data.
In Cache the relevant functionality is offered by %IO.Socket class.
set sock = ##class(%IO.Socket).%New()
set sock.SSLConfig = "MyEmptySSLConfig"
set sock.TranslationTable="UTF8"
do sock.Open("site.com/ws/v2/?&token=<token>","443", 10,.sc)
WebSockets as a communication technology wins increasing importance. In the SAMPLES namespace, you find a nice example for running a WebSocket Server. There is also a useful example for a Browser Client. JavaScript does most of the work.
My point is: How to consume the output of a WebSocket Server in your application?
somehow my installation on win10 canceled during finish. "Installation of Caché finished" showed up for 20 minutes and canceled with an error I didn't saved.
Every file and service was installed but never registered as successfull installation. Now I try to reinstall it but the installer shows me everytime "Another installation is already in progress. Please finish the second installation first".
The unfinished installation is broken. I can't startup Caché from launcher. So I deleted everything in c:/intersystems
I am having a problem with SQL Select, the command in portal is OK, show all items, but when I use a CacheDataAdapter in VB .NET show the message 'Incorrect list format 0>=0'. What could be this message? Because is the same SQL command.
Hi,
I am facing issue during LDAP lookup like whenever I used product group parameter in AD explorer to search data from application I am getting empty result. If I set product group parameter as null then based on distinguished name result is generated in application. So if anyone knows about how LDAP works and how parameters are set in AD explorer then please let me know.
In this article, we will explore the development of an IRIS client for consuming RESTful API services that have been developed to the OData API standard.
We will be exploring a number of built-in IRIS libraries for making HTTP requests, reading and writing to JSON payloads, and seeing how we can use them in combination to build a generic client adaptor for OData. We will also explore the new JSON adapter for deserializing JSON into persistent objects.
The %Net.SSH.Session class lets you connect to servers using SSH. It's most commonly used with SFTP, especially in the FTP inbound and outbound adaptors.
In this article, I'm going to give a quick example of how to connect to an SSH server using the class, describe your options for authenticating, and how to debug when things go wrong.
Here’s a fun little formatting problem you may run into when trying to use the RSAEncrypt method of %SYSTEM.Encryption (also useable as $System.Encryption.RSAEncrypt()!), which is documented here:
I wanted to write it as a comment toarticle of @Evgeny Shvarov . But it happens to be so long, so, decided to post it separately.
I would like to add a bit of clarification about how docker uses disk space and how to clean it. I use macOS, so, everything below, is mostly for macOS, but docker commands suit any platform.
My database service is on the cloud server, and I access it on the company intranet. When I user the %request.CgiEnvs to get "REMOTE_ADDR", but what I have been getting is the company's external address. I can't get my IP address in the LAN. For example, my computer IP address is 192.168.11.11, and my company's external public network address is 214.17.17. I can only get 214.17.17 by using %request.CgiEnvs("REMOTE_ADDR"), but not 192.168.11.11.
Couple days ago, a customer approached me with the wish to enhance their existing legacy application, that uses SOAP (Web)Services so it shares the same authorization with their new application API based on REST. As their new application uses OAuth2, the challenge was clear; how to pass access token with SOAP request to the server.
After spending some time on Google, it turned out, that one of possible ways of doing so was adding an extra header element to the SOAP envelope and then making sure the WebService implementation does what is needed to validate the access token.
I want to know if anyone tried calling a CDS service from Healthshare/Ensemble. Will that be similar to any other API or is there anything different in constructing CDS Hooks and consuming the CDS Cards received in the response?
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