Delphi - Tokyo XE 10.2 RESTFUL Client Library Request/Response - rest

http://docwiki.embarcadero.com/RADStudio/Tokyo/en/Tutorial:_Using_the_REST_Client_Library_to_Access_REST-based_Web_Services
Worked through this code example to run a Req/Resp via Delphi Rest client library. Curious to know if through the example shown about giving values to request parameters can be dynamic?
The value is hardcoded in the example, and a TEdit Button is linked, but I do not see how we are able to pass value from TEdit input to the Request parameter for value.
Screenshot:

Yes. You can change the request parameter values from code. Params property is just a collection of TRESTRequestParameter type items (the collection itself is of the TRESTRequestParameterList type). Write for example:
{ there seems to be only indexed access implemented for this
collection, so to access the first parameter value write }
RESTRequest1.Params[0].Value := Edit1.Text;

Related

how to get dictionary value from webrequest using sharepoint designer

I am trying to retrieve a value from a HTTP web service call in sharepoint designer. This should be simple. the Rest query is simple, and always returns only a single value:
https://Site.sharepoint.com/sites/aSiteName/_api/web/lists/getByTitle('MyListTitle')/items/?$select=Title&$top=1
In the Sharepoint Designer workflow, I'm setting the required Accept and Content-type header to the value of "application/json;odata=verbose
I am unable to get the value of the "Title" field that is returned by the call.
when I execute the REST query in the browser, I get the following data returned:
{"d":{"results":[{"__metadata":{"id":"af9697fe-9340-4bb5-9c75-e43e1fe20d30","uri":"https://site.sharepoint.com/sites/aSiteName/_api/Web/Lists(guid'6228d484-4250-455c-904d-6b7096fee573')/Items(5)","etag":"\"1\"","type":"SP.Data.MyListName"},"Title":"John Doe"}]}}
I've tried dozens of variations of the dictionary 'query', but they always return blank.
I'm using the 'get an item from a dictionary' action in SP Designer, using item name or path values like:
d/results(0)/Title
d/Title
d/results/Title
and literally dozens of other variations - but it always returns blank.
I'm writing the raw response from the webRequest to the list for debugging, and it shows the value like this:
{"odata.metadata":"https:\/\/site.sharepoint.com\/sites\/aSiteName\/_api\/$metadata#SP.ListData.MyListTitle&$select=Title","value":[{"odata.type":"SP.Data.MyListTitle","odata.id":"616ed0ed-ef1d-405b-8ea5-2682d9662b0a","odata.etag":"\"1\"","odata.editLink":"Web\/Lists(guid'6228d484-4250-455c-904d-6b7096fee573')\/Items(5)","Title":"John Doe"}]}
I must be doing something simple that is wrong?
Using "d/results(0)/Title" is right. Check the steps in article below to create a workflow.
CALLING THE SHAREPOINT 2013 REST API FROM A SHAREPOINT DESIGNER WORKFLOW
It working fine in my test workflow.
I faced the exact same issue. In my case the reason was that in the API call, the header was not set properly.
As you would have noticed many times, that if you type the variables inline when creating the "Call Http Web service" action, those might not get set properly. The surest way is to open the properties and set from there. In my case when i opened the properties i found that RequestHeaders was not set. Once i set it from there, i got the desired results.
Hope this helps to someone in future, this question being unanswered till now!!
tried dump those json called from sharepoint workflow into a list. Sometimes you'll get a different format than when you called that from browser. I experienced this issue when calling API projectserver (project online). When I called it using servistate (chrome extension) it returns d/results, but when I dump the value into the list I got value and yet I used same request header value.

Why does one HTTP GET request retrieve the required data and another retrieve []

I'm currently working on ng-admin.
I'm having a problem retrieving user data from my REST API (connected to a MongoDB) and displaying it.
I have identified the problem as the following:
When I enter http://localhost:3000/users into my browser, I get a list of all users in my database.
When I enter http://localhost:3000/users?_page=1&_perPage=30&_sortDir=DESC&_sortField=id,
I get [] as a result.
I am quite new to this, I used both my browser and the POSTMAN Chrome extension to test this and get the same result.
http://localhost:3000/users_end=30&_order=DESC&_sort=id&_start=0
This (/users_end) is a different request than /users.
It should be:
http://localhost:3000/users?end=30&_order=DESC&_sort=id&_start=0
Or, by looking at the other parameters:
http://localhost:3000/users?_end=30&_order=DESC&_sort=id&_start=0
with end or _end being the first parameter (mark the ?).
Update (it is ? and before the _, I have edited.):
If adding parameters to the request returns an empty list, try adding only one at a time to narrow down the problem (there's probably an error in the usage of those parameters - are you sure you need those underscores?).
Your REST API must have a way to handle pagination, sorting, and filtering. But ng-admin cannot determine exactly how, because REST is a style and not a standard. So ng-admin makes assumptions about how your API does that by default, that's why it adds these _end and _sort query parameters.
In order to transform these parameters into those that your API understands, you'll have to add an interceptor. This is all thoroughly explained in the ng-admin documentation: http://ng-admin-book.marmelab.com/doc/API-mapping.html

Sharepoint URL to reference a lookup

I have two SharePoint lists used for Support case management. The first list contains Case Numbers and information about the case. The second list contains exhibits that support the case itself.
We have a convention that the Case Number is a String supplied by the worker, ex 20150205-001. When the exhibits are joined to the Case it is through a Lookup. I want the Exhibit ID, a String, to be of the form Case Number + _[A-Z] -- and be auto-assigned.
I want to use a Workflow (MS Sharepoint Designer 2013) to assign the Exhibit ID. The problem I face is that I cannot get the actual Case Number from the Lookup. The closest I have gotten so far is to get the ID (1, 2, etc) but not the actual String value represented.
Tried working with the following URL:
http://[mySiteURL]/_api/web/lists/getbytitle([listName])/items?$select=Title,Case/Id&$expand=Case/Id&$filter=Case/Id%20eq%2020150205%45001
substituted ascii: $filter=Case/ID eq 20150205-001
without the filter I get all list items (understandably) but the filter does not work properly because the ID is not the actual lookup value.
This is a SPD 2013 limitation. You have to use a web service call from within Designer to get the specifics of a lookup column from SharePoint. You make a REST call ad then parse the JSON response for the specific data from the lookup column. It gives you access to all of the columns from the list item that you looked up:
Build {...} Dictionary (Output to Variable: requestHeader )
Call [%Workflow Context:Current Site URL%]... HTTP web service with Variable: Request (ResponseContent to Variable: PoleIDData |ResponseHeaders to Variable: dictionary |ResponseStatusCode to Variable: responseCode )
Get d/Pole_x0020_ID from Variable: PoleIDData (Output to Variable: PoleID )
Set Name to Variable: PoleID
Your actual web service call will be formatted like this:
[%Workflow Context:Current Site URL%]/_api/web/lists/GetByTitle('List Name')/Items([%Current Item:ID%])/LookupColumnNameOnOtherList
Sorry for the formatting, I would post a screenshot but I cannot.
This article is good for showing you some of the other specifics about formatting your HTTP Request, especially the Request Headers which must be setup right.
http://www.fiechter.eu/Blog/Post/37/SharePoint-2013--HTTP-Web-Service-Action---Use-Managed-Metadata-as-Text-in-Workflow

Client context validation of data

As for tracking in AEM I am using CQ_Analytics for a scenario. We have a requirement like, I have to capture a value called "sort type" which is on the page when a user clicks on a button on that page and store it in ClientContext. I have written the below Javascript function which accepts a name argument. Using some code I am able to get hold of sort type value and passing it to the below function. Now my query is, how do I validate whether the name variable is assigned to the Client Context???
I have kept an alert statement and tried checking with multiple combinations but I am unable to figure out what is the correct way to conclude that my name value has been assigned to Client Context or not. Please help with my query.
function myFunction(name) {
CQ_Analytics.record({event: 'sorttype',
values: {'sortSelectedOption': name },
componentPath: '<%=resource.getResourceType()%>'
});
alert(CQ_Analytics.record.sorttype.sortSelectedOption);
}
You can see this post how to make your custom client context and how to store your data. http://blogs.adobe.com/aemtutorials/2013/07/24/customize-the-client-context/
After you create your client context, you have in the example CQ_Analytics.CustomStoreMgr.setTraitValue function that will save your parameter into client context.

HTML form POST method with querystring in action URL

Lets say I have a form with method=POST on my page.
Now this form has some basic form elements like textbox, checkbox, etc
It has action URL as http://example.com/someAction.do?param=value
I do understand that this is actually a contradictory thing to do, but my question is will it work in practice.
So my questions are;
Since the form method is POST and I have a querystring as well in my URL (?param=value)
Will it work correctly? i.e. will I be able to retrieve param=value on my receiving page (someAction.do)
Lets say I use Java/JSP to access the values on server side. So what is the way to get the values on server side ? Is the syntax same to access value of param=value as well as for the form elements like textbox/radio button/checkbox, etc ?
1) YES, you will have access to POST and GET variables since your request will contain both. So you can use $_GET["param_name"] and $_POST["param_name"] accordingly.
2) Using JSP you can use the following code for both:
<%= request.getParameter("param_name") %>
If you're using EL (JSP Expression Language), you can also get them in the following way:
${param.param_name}
EDIT: if the param_name is present in both the request QueryString and POST data, both of them will be returned as an array of values, the first one being the QueryString.
In such scenarios, getParameter("param_name) would return the first one of them (as explained here), however both of them can be read using the getParameterValues("param_name") method in the following way:
String[] values = request.getParameterValues("param_name");
For further info, read here.
Yes. You can retrieve these parameters in your action class.
Just you have to make property of same name (param in your case) with there getters and setters.
Sample Code
private String param;
{... getters and setters ...}
when you will do this, the parameters value (passed via URL) will get saved into the getters of that particular property. and through this, you can do whatever you want with that value.
The POST method just hide the submitted form data from the user. He/she can't see what data has been sent to the server, unless a special tool is used.
The GET method allows anybody to see what data it has. You can easily see the data from the URL (ex. By seeing the key-value pairs in the query string).
In other words it is up to you to show the (maybe unimportant) data to the user by using query string in the form action. For example in a data table filter. To keep the current pagination state, you can use domain.com/path.do?page=3 as an action. And you can hide the other data within the form components, like input, textarea, etc.
Both methods can be catched in the server with the same way. For example in Java, by using request.getParameter("page").