Article
· Sep 21, 2016 7m read
REST in Pieces

A beginners guide to develop Ensemble RESTful web services.

Background

Before you start reading this short introduction please go through the on-line documentation of Ensemble with special attention to chapter “Creating REST services and clients with Ensemble”.

The approach in the documentation is undisputable the fastest and easiest way to create RESTful services. As a beginner I went through the documentation and I had several questions. This short article is listing those questions plus my humble answers.

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Question
· Aug 18, 2016
Read only Async mirror setup

I have setup an async reporting mirror member with Read only access. My problem is that if I try to do any sql reporting against that data I am getting errors. I am sure that this is because the DB is read only, but I had assumed that setting up a reporting mirror would handle this.

I there a setting or mapping I am missing?

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Hi all,

We're in the process of creating several courses for creating custom business components for productions. This includes custom business operations, BPL processes, and custom business services. Custom Business Operations and Custom Business Services are both aimed at software developers while BPL processes can be also be created by business analysts. What are some gotchas or best practices you've learned that you wish you knew when first building these components?

We'd love to include what you've learned into these courses so others can learn from them as well!

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Question
· Sep 21, 2016
Ensemble Upgrade From v3.0.0

Hi All,

We have an application running on Ensemble 3.0.0.2185, And we want to upgrade to latest version of Ensemble.

Can somebody please outline the process of upgrading from version 3.0.0.2185 and all the risks involved?

Thanks

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Article
· Sep 20, 2016 4m read
Diagnosing Framing Errors

Framing refers to the characters that mark the start and end of an HL7 message (or other types of framed messages). Most HL7 services and operations have a Framing setting that allows the user to define this framing. The most common choices are available as defaults, but with the AsciiMM/NN setting, components can be configured to recognize any framing characters.

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Do you have any experience / recommendations / best practice on how to update server-side data residing in a Cache database via a REST service?

A naïve approach would be to send a full JSON representation of the data object via an http POST to a method on a REST handler class:

<Route Url="/mydata/:id" Method="POST" Call="Update"/>

The problem I see here is, if only one of the data object's properties has changed, how do we know which? Or do we simply overwrite all properties?

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Question
· Sep 19, 2016
REST json payload

Hi-

This almost seems like a silly question, but I am new to REST services.

I have a rest service that has a method for adding records to my database.

<Route Url="/userdetails" Method="POST" Call="SaveUserDetails"/>

My REST client sends data using json in the body of the request. I have verified using debugging tools that the data is actually being sent.

On the server side in my SaveUserDetails method where do I find the json?

What is the proper way to serialize that json into an object?

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Right now I have a developer/free version of Cache 2016.1 on my local dev box but it doesn't have Ensemble installed, is there a way to get Ensemble?

After having gone to the 2016 Global Summit I want to play around with it on my own and see what it's capable of.

Thanks

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I have been using the query below and it was working fine but now it's giving a SQL error. There were no changes made that could cause this to stop working. There is no Field 'APPLICATIONID' in the table.

QueueSQL=select distinct (convert(char(5),SkillsetID)+'='+Skillset) from iagentbySkillsetStat where ApplicationID > 10000
QueueMappingSQL=SELECT DISTINCT (convert(char(5),SkillsetID)+'='+Skillset), SkillsetID FROM iagentbySkillsetStat iagentbySkillsetStat WHERE (iagentbySkillsetStat.ApplicationID>10000)

DB- Intersystems Cache

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Let's say I have a global named ^a and I need to export its nodes 1, 2, 3, 5 only.

Currently I write something like this:

Write $SYSTEM.OBJ.Export("a(1).gbl,a(2).gbl,a(3).gbl,a(5).gbl", "C:\Users\eduard\Desktop\a.xml")

Is there a way to write it shorter? I want to write global node once and list all the subscripts I need.

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Question
· Sep 15, 2016
Help

Hi All,Cache is not starting ,I checked the cconsole log it is showing the below error.
The following parameters are missing from section [Journal]: '2,12' at line 143,but i checked in last cpf file,
In cpf file consist of that particular line
[Journal]
AlternateDirectory=C:\InterSystems\CACHE16\mgr\journal\
BackupsBeforePurge=2
CurrentDirectory=C:\InterSystems\CACHE16\mgr\journal\
DaysBeforePurge=2
FileSizeLimit=1024
FreezeOnError=0
JournalFilePrefix=
JournalcspSession=0

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