I have two web apps which need to access different couchbase clusters.
I wonder if the two different web apps(two or more distribute system based web apps) can access a same couchbase cluster?
Your comment welcome
Of course two or more apps can access one cluster. More over many apps can access even one bucket (if it is needed).
I.e. I have one cocuhbase cluster that has 2 couchbase buckets and 1 memcached bucket. Apps that I have: web-site, utility service, mail service, chat server and all of them are connected to same cluster. Also i.e. web-site and chat server use same bucket.
If you need two different web apps to access one cluster you can create one bucket per app. Couchbase bucket is like "database" in RDBMS, and couchbase server (cluster) is like MySQL server: server can have many databases that can be accessed by different apps.
Related
I will create a mobile app for Android and iOS. The purpose of the app is to access just a segment of the MySQL database, that part is for customers (the rest of the database is used by employees via my web application).
Is there a way the for FlutterFlow app to access MySQL database instead of FireBase Storage? If not, what are the alternatives?
Though flutterflow has default integration with Firebase firestore database,
below 2 approaches can be used.
API integration approach can be used to use MYSQL database.
Please refer below flow:
You can have backend Server which will host the API.
This backend server will have integration with MYSQL DB
API's will be consumed in flutterflow app
https://docs.flutterflow.io/data-and-backend/api-calls
Custom code approach (Though have not used it before)
https://docs.flutterflow.io/customizing-your-app/manage-custom-code-in-github
Quick bit of advice if i may. I'm a startup company and developing a new mobile app that i intend to query and update data from a cloud MYSQL database, using a restful webservice and JSON. I am pretty new to this, but ok on the theory.
I originally thought i could use Dropbox to host the database and somehow install a Tomcat server also, to act as the http server, but i cant find anything online that says this is achievable. I've now found a temporary site heliohost.org, which offers free hosting, so i'm looking into that.
Does anyone have advice on a [low cost] longer term production cloud service for MYSQL database? And am i right that a good approach is to create a restful webservice in Eclipse and then somehow deploy that to the Tomcat server in the cloud, so that my app can then issue calls to it via the CN1 available methods.
There is quite a lot out there and much of it is self-promoting their own sites so was after some independent advice please.
Many thanks in advance.
You can't host and access an SQL server over the network from a device as access is remarkably unreliable and insecure. You will need some form of hosting. I used Linode for our online course since they are very affordable (5USD per month) but I've used AWS, Digital Ocean and others. They are all good.
You are correct that you will need to create a webservice, I used tomcat in the past but for the latest course I chose SpingBoot which is easier and more modern.
Using a mobile backend to store and retrieve data is a vast topic to discuss where different tools and services can be leveraged based on your application use cases.
However directly accessing MySQL server from your mobile client wouldn't be a recommended approach both in term of security as well as performance at scale.
Few options you can consider.
Developing the mobile backend with Amazon Mobile Hub where you can find different architectures and services. For example.
Using AWS DynamoDB as a Mobile Backend tightly controlling access permissions with AWS Cognito and DynamoDB Fine Grained Access Control.
Using Cognito Sync as a storage medium to Synchronize data from Mobile App to AWS and then using triggers to share and push data & etc.
Developing a REST API for the mobile backend using AWS Services such as API Gateway, Lambda & DynamoDB(Or Relational Databases like MySQL, Postgres SQL & etc. with RDS)
BACKGROUND-
I am planning to make a website that will accept data from users to store them in a database(MySQL).The website would be served from google cloud servers.I have installed MAMP on my mac for web development.
PROBLEM-
Google cloud services also provide Cloud SQL.Now I have a few doubts-
1)Once I finish designing my website on MAMP and want to deploy it on cloud servers I would have database settings of my local machine.Does this mean that before putting it on cloud and in order to use Cloud SQL as database I would have to change code on back-end side that specifies database settings?If yes then how tedious is it to do so?(Changing database from testing environment from MySQL to deployment environment Cloud SQL).
2)Also is there a way to use cloud and not use Cloud SQL?
3)What else combination can be chosen with database to deploy website on cloud?
Usually changing the database needs huge efforts(testing and some config changes) as all the databases provide many additional features which doesn't work directly on another database.
You can use Cloud(Cloud SQL is just part of it).
But the Cloud SQL is mysql only as per the information given on the below link by google
https://cloud.google.com/products/
So, it should not be a big deal for you to migrate the project to cloud from your local system. Only you have to configure the connection details(it will not be simply localhost).
I have a microsoft access database that I use to track client specifications. I would like store the front-end and back-end database in the cloud and use it in real time. What recommendations and cheap options are available
One option is to host the frontend and backend on an AWS t2.small instance running Windows:
AWS instance
Then access this via Remote Desktop as any other machine.
There is an option to use your Access database locally and update the data on the cloud, using Google Drive or other similar services to share this among several users, it is an asynchronous solution though.
deployment of a multi user Access app, among geographically separated users, is via Remote Desktop Server, aka citrix, aka terminal services...
in any multi user deployment the app is split, and each user has their own front end file - and all connect to the one single back end file. this remains true in an RDS deployment.
this is a main stream method to deploy, and very functional....lots of orgs do virtual desktop now, and then there are hosting companies that will do a single app... whether or not one views this as "cheap" however is in the eye of the beholder... but any other attempt/method is generally a kludge and is typically round-robin where only 1 user at a time can use the app... also - - one does not put the WAN in the middle... both the front and back end files are RDS and so the user simply has Win10 and does not need any Access or Office license on their local pc.
I just wanted to ask if we can access an external MySQL server from Google App Engine...
The only way to communicate with other hosts is by using UrlFetch that only provides HTTP and HTTPS requests.
So, you can't do it out of the box.
Anyway, if you really need to access an external MySQL server database, you should consider to expose it through a Web API (RESTful, Soap web-services for example).
In this way your data would be available also via UrlFetch.
I am still in the learning phase of all this, but I am fairly certain you can do this now a few ways:
Link Apps Scripts to App Engine and use the JDBC
Link it to Google
Cloud SQL Store your SQL database on Google Cloud Store
Connect Apps Scripts via spreadsheet scripting
"Google Apps Script has the ability to make connections to databases via JDBC with the Jdbc Service. The current support extends to MySQL, Microsoft SQL Server and Oracle. Apps Script makes it easy to connect to databases hosted on Google Cloud SQL, but also works with other cloud hosting platforms and even local databases." https://developers.google.com/apps-script/jdbc
(edited for structure)
It is still not possible to native connect GAE to an external MySQL server the only exception is Googles Cloud SQL. We are using it in our production environment and like the experience. Stable and the performance is good.
GAEs own database scales well and we are using it in most situations, but in cases where we need to ask more complex questions or need aggregate functions, we use Googles Cloud SQl.
These answers are a bit outdated. Google App Engine instances can connect to external database servers.
The ability to connect externally requires that the account the App Engine is running under be a "paid account" a/k/a "billing enabled".
References:
-https://cloud.google.com/appengine/docs/php/using-third-party-databases
-https://cloud.google.com/appengine/docs/php/runtime#PHP_Functions_that_requires_billing_enabled