Does someone had any idea or created a webservice REST API in JSON format, which another remote server can fetch the data from.
Just need some beginner's lesson how to setup it on MQL4. My client needs this kind of service, which we will then output on a Wordpress as Widgets.
I want to know how our Wordpress server can access this. MQL4 had this WebRequest() function and planning to use it, but don't know where to start.
A number of options possible.
you can:
a. create web api call to save incoming data (ticks/candles) into db.
create mql4 script to send data via api.
or
b. create c++ / c# dll to save data into db.
separately create web api in language of your choice to read from db.
enter code here
or
c. save file into web accessible folder in format you like and read the file from word press.
Related
I need to use two data sources. One is SQL and another one is the response from a rest API.
I tried to implement WDC, but it needs an HTML and user need to interact with UI and getting the response.
But I don't want to create a html page.
Is there any way to use an API response as a data source in Tableau?
The short answer is that you can not use API directly as a data source but you should build a pipeline to transform this into flat-file o populate a database table.
The alternative answer is to use Python to connect to the REST API. You can choose to use TabPy or follow some pre-build solution like this one. Personally, I don't know how the performances could be.
I'm working on a project that consists in an python script that get data from an API and calculate things based in this data. The goal is to get this calculated information to a website. I was thinking in doing something like running this code in the same server as the website host server and posting the data generated in a database, then the website would get the information from the database and display it in the website. However, the front-end developer that is working with me said that would be a better option to develop a REST Api that would return to the website the data calculated in the python script. Does it makes sense to develop an API that will only be used internally? Wouldn't it be another unnecessary factor of complexity, since the data could be calculated, stored and retrieved form the host server without any API?
I have to extract data from Qlik Sense through the Rest api Call hence I have explored and haven't found any solution. is it possible to do the Rest call to Qlik sense app to extract data ?
As far as I know, there is no REST API allowing to access data inside an application.
There is a Javascript and .Net SDK to use the Engine API and thus connect to data .
There is a also various REST API to manage application, streams, tasks, users...
However, if you want to get access to Qlik data, I suggest you add STORE commands in your load script to dump the tables to text or CSV files, making them easily readable after.
Qlik sense does not provide an API to expose the data in Qlik to other applications.
Because we did need this functionality (for instance to expose data from Qlik to Rapid Application Development platforms like Mendix) we developed a custom application that can help. see https://ddcgroup.com/qlik-data-extractor for more info.
With this tool, you can define the rest webservices that you need (including aggregation etc) which can be called to extract data from Qlik.
Good day,
I want to communicate between two Web Api's, the first web api lets call Api1 not written by me and that api interacts with my data base to spit out information needed.
I have web api2 which would be written by me and why i have this is because my application needs data in certain kind of format (.dll) format.so api2 purpose is to get the information from api1 and then transform or package my data in a way that the my application would understand.
The question, is this possible?. can i use wrappers, so when i get my information from api1 then i wrap my information in the desired format before sending it off to the application. Does anyone have any other suggestions ?
Thank you in advance,
What you describe is possible but the requirements are too vague to give a useful answer.
The file extension doesn't really mean anything so not sure why you need .dll format for the message. I would use a standard format like Json or Xml. Or if using datawindow you could simply do saveas on sending side (or comma delimited, tab delimit) and file import on receiving end, so many options.
Too vague.
Async or Sync interface?
Files transferred via REST, OLE, DDE, or files written to location on server?
Are the files/data transferred specific to a logged in user?
How much data is being transferred, rows of information or configuration data? Answer will help in deciding on appropriate format & best method.
What type program is API #1 not in your control? That is important factor.
could someone please explain to me the process of retrieving data from a remote database? I understand how to parse data from sqlite to an iPhone application however remote databases seem to be more complex. I tried to do research however i get confused about web services,clouds and other words that im not familiar with. So far i gathered that i need to use JSON to convert the data from the database into the appropriate format that is displayed on a php page? then the iPhone application connects to that page and retrieves the data?
Would someone be able to give me a brief explanation (also what database can be used with JSON? in this instance)? would me much appreciated (also if someone has any tutorials/articles about this would be grateful). Sorry if im totally wrong, trying to learn...
That are many ways to build a system where you have a client application that retrieves data from a "remote" system that runs a database. You have many many choices as to what the server runs, and what the client is... and there is a world of technologies involved in this...
Since you are interested in learning, I would suggest you to take into consideration a very common architecture for such systems and dig into it.
One such example is LAMP (Linux, Apache, MySQL, PHP) and you can find a good tutorial at this site.
The tutorial covers everything you need, from setting up the systems, to retrieving the data and passing it back though the web; it's step by step and pretty easy to follow. The only thing that is not covered is JSON, but JSON in the end is just a format to pass data back and forth, and you can easily learn the basics about it with this tutorial.
Finally, I would suggest looking at how building an iPhone app getting JSON data. This would be the point where you join the two previous tutorials.
If you have a web service protocol on the server side, you can use JSON based web service to retrieve your data. If you follow any JSON tutorial, you can see JSON is just a text representation of the data.
Or you can simply use a post request to your server, which can response by simple XML with your own defined tag. So that you can use NSXMLParser to parse the data in your iPhone and decode information from there.
Any kind of database in the remote site will work. I prefer the free open source MySQL database.
With JSON web servie, you need some JSON converter for your database in the server side and also in the client side. A good open source client tool is SBJSONParser.
But if you use XML, you can define your own tag to encode and decode you database fields and information.