Can someone please suggest how to implement a search feature in the application built using angularjs,nodejs and mongodb this feature should be like when a user enters letter a then all the book names which is starting with a from the database should be displayed in the drop down (eg: tags drop down below in stack overflow)
Any suggestion and help?
You can have a web service running such that a REST api call from angular is made to your web service whenever some one presses a letter in the search box.
The web service code should handle querying the database and sending the results.
You can use a cache to make it faster
Related
I am making a react application where there will be few buttons like sorting, removing duplicates etc. And there will be input field to get the text(for example, the text that has to be sorted) and there will also be output field to display the result. I also have login and sign up page in this application, so that only registered users can use the application. Now I want to have a history view for all the operations performed by each user. To store the history, I will be using Elastic Search. I'm absolutely new to ElasticSearch. So I would like to get some rough idea or a blueprint like what are the steps I will have to follow. Much appreciated.
I've used Java in the server side
Below is highlevel idea you can implement for user tracking:
Log each action of user into log files.
Use Logstash File Input Plugin or Filebeat Log Input for reading your file and indexing to the elasticsearch using output plugin.
Use Kibana for visulization.
I want to host a clean, branded site that allows users to submit data which I will post process on some regular cadence and send custom emails based on data processing results. I can write code and have extensive experience with AWS, but am looking for the fastest solution.
Any experienced web developers have suggestions of which hosting solution to use? Wix, Squarespace, WordPress. I would prefer Squarespace but am not finding clear documentation stating I can create a form which writes to a database (I.e. DynamoDB, Redshift).
Any suggestions would be great! Thanks!
Having a good deal of experience with Squarespace, I will address the question "Is it possible to connect a Squarespace form to a third-party database and, if so, by what means?". While I won't address Wix or Wordpress, hopefully it will provide some objective answers and provide some help to your larger context/question.
Squarespace doesn't support any server-side code; it only supports supports the addition of HTML, CSS and Javascript within Code Injection, Code Blocks, and Developer Mode.
Therefore, your options are:
Send the data client-side with JavaScript. Write your own HTML form and insert it via code block, markdown block, of developer mode. Then write the corresponding JavaScript to send the data, on submit, to your external database. Alternatively, use a Squarespace form block, prevent the default submission from executing and use your own methods instead.
Connect the Squarespace form block to a Google Sheet and the sheet to the external DB via Apps Script. Once connected, use Apps Script (set to trigger when a row is added to the sheet) to obtain the submission from the sheet and send it to your external database (similar to this or this, but you'll be going "the other way", sending data to the external DB from Apps Script).
Use Zapier (or similar service) to bridge the gap, either using Squarespace's built-in integration or setting up Zapier on your own and setting the Zapier email address as the email recipient. You can use Zapier to send form submissions to a new item in DynamoDB, for example. It appears that, at a minimum, you'd have to pay for Zapier as that is a "Premium Integration". For Squarespace, if you were to use their built-in Zapier integration, you'll have to pay for a higher-cost plan (which could be avoided by using the email storage option instead, as mentioned previously).
I think you should choose WordPress, they have a huge documentation, a big community, you can get a ton of support from Wordpress's users when you run into a problem.
I'm creating my first application that requires me to update the app based on user input. I've been searching for the best way to send input to me. For example, I have a button that when the user presses I would like to send me the information they've added to a text field. Being new to this, I thought this could be done by simply sending the information to a specified email, but from what I've researched I will need some sort of database. Looking through the Apple Developer Documentation I don't even know which topic I should be looking at to figure this out, any help or direction would be very helpful!
You need to setup a server (using an API) to receive the information.
Usually you will use a webservice to receive the info from the app, although there are other ways to do that.
Sending an email through iOs would require the user to accept the email that is being sent, so doesn't look like a good idea.
Take a look at some options available to create webservices (django rest framework or flask), Google's Firebase also can be handy in this situation, since is only integrating it with your app and storing the data you want to store, with easy integration for Authentication and user tracking.
I'm creating a SPA application with AngularJS at the client side and ASP.NET Web API as backend. My database is SQL Server 2012. There will be users which have a favourite sports team and a simple icon in the UI displaying the number of new articles/news/comments added or whatever connected to their favourite teams.
What I'd like to achieve is the following: Whenever a record about their team is inserted (record with TeamID column value for example equal to the user's favourite team ID), that notifications count icon should be updated immediately (just like Facebook's notifications - it's updated when a friend has posted on your wall or has tagged you and so on). How can I best achieve this?
What I'm thinking of for now is just setting an interval function in AngularJS to check every 30 seconds, let's say, if there are new records in the database making a request to a Web API controller. Of course this suggests a lot of checking for when the user is logging out - when was the last check, what will be the date to check against next time he/she logs in and so on.
You can use signalR for this. It's a framework for real time communication. Check out this to get if you want to get started. It can easily be used together with angularJS.
What you are looking for is push
Sadly i never used it so i don't know much about it, but i think you should use technologies like pusher
I am working on a WP7 application. This WP7 application will interact with some web services that I have created. I do not want other applications interacting with these web services. The reason why is because I do not want them stealing my data. With that in mind, here is what I'm currently doing:
Connecting to web services via HTTPS
Making my users initially login to the application
Passing the users username / password with each web service interaction
At this time, I don't see what is stopping a malicious developer from creating a username / password combo and using that account in their application to interact with my web services. How do I really lock this thing down?
Thanks!
As a start towards a more secure system you should stop storing the password and sending it over the wire with each request (even if you're using SSL).
If you must pass it with each request, store a salted hash of the password and use that instead.
I'm using a multi layered approach to this problem. I recommend thinking creatively and using a variety of methods to validate that requests are coming from devices you expect requests to come from.
Alternatively, if there is any merit in your scenario, open up your api to 3rd party developers and make this work toward your objectives.
If you do decide to store a key in your app, don't store RAW text but instead declare a byte array of the UTF8 values, this won't be as easy to read.
You can then handshake with your service using a salted hash of the key the first time the app is run, the service hands out another key for the device to actually use day-to-day.
The phone should have an almost accurate time, so you can recalculate the key each day or hour. You can also revoke the key at the server end for just that device.
This API will be useful in ensuring you can blacklist a device permanently.
DeviceExtendedProperties.GetValue(“DeviceUniqueId”).ToByte();
I've not looked into symmetric encryption by you might even be able to use the above unique ID as a private key.
I think the key to success is that first hand-shake, and ensuring that is not snooped. If it's a really important system, then don't use any of these ideas since rolling your own encryption is always flimsy to anyone with serious intent - use well-known methods and read up.
Luke
You could introduce an "Authorized Application ID" feature where the application sends its name or identifier within each HTTP request body. Then on the server side you can verify the application's identity (e.g. store the authorized app ID's in a table). The application ID would be encrypted within the HTTP(S) body.
This would also give you the option of pushing out new application ID's in updated versions of the WP7 application if you wanted to get rid of an older application ID. You'd also be able support new applications on difference devices or platforms in the future.
You may want to look at this
http://channel9.msdn.com/Blogs/Jafa/Windows-Phone-7-Trade-Me-Developer-Starter-Kit