I am currently developing a php application hosted in my server. I want to store the database data in a more secure place rather than my own server. Can I use google app engine only to store and retrieve data without creating a java or python app? If thats possible how can I access data? Using a special service or I can directly connect to db like connecting to a mysql server and execute sql commands lik select, insert etc?
Storing your data on App Engine will not magically grant you extra security. If an attacker compromises your server, they will be able to compromise the interface you have to your datastore and do whatever they wish.
A much better approach would be to learn best-practices for secure web development, and endeavour to ensure your app will not be compromised.
They have a module called remote_api, but it has some restrictions. Check it out:
http://code.google.com/intl/fi-FI/appengine/articles/remote_api.html
There is no direct way to access datastore in App engine. I assume you use mysql or other relational database for your php application. But app engine provide a schemaless object datastore. In that case you need some java or python app for preparing data to store in datastore. Check below links as well.
http://code.google.com/appengine/docs/java/datastore/
https://stackoverflow.com/questions/1466420/google-app-engine-external-database
Related
I am developing an Android app using the Firebase.
It uses Firebase Auth, Real-time database, Storage.
And the App has a search feature.
For example, a customer can search another user using this feature.
If there is a user "Yoonho Aaron Kim", user want to search this user using some keyword like "yoonho", "aaron", "kim", etc...
But the Firebase Query doesn't support all of them.
It provides only "startAt", "endAt", "equalTo" methods.
Plus, I cannot use these 3 methods at the same time.
Because of this limitation, I am considering another module like "Cloud SQL", "App Engine".
Is there any good ideas please?
AppEngine is actually not a database engine, it is a "platform to build apps and scale automatically" and as such can connect to different types of databases: Cloud SQL (that you mention) a relational MySQL db (or PostgreSQL) or Cloud Datastore, a NoSQL database.
With Cloud SQL you could indeed perform some queries with a LIKE operator in a WHERE clause. With Datastore you will get the same limitations than Firebase database.
However, switching to AppEngine means that you will stop using Firebase and that you will go for another solution to develop and expose your APIs to your Android app, e.g. use a framework like Google Endpoints (https://cloud.google.com/endpoints/) .
I already deploy my application with eclipse and built in database (generated from AssestDB of the application). I want now to manage the application and deploy it with IBM bluemix PaaS, to manage Mobile Data.
What is the best DB I must use when coding before deploy into Bluemix?
If you want to configure your local test environment in order to minimize migration problems when deploying your application on Bluemix, you should replicate the target environment on your local one, as much as possible.
If you are planning to use the Mobile Data service on Bluemix please consider that it is built on Cloudant NOSQL Database, and it offers a further layer of abstraction that allows you to directly persist objects (if you are familiar with the concepts of class, object etc..).
You could also directly connect from a local application to a DB service instance running on Bluemix.
Is it possible to create AppEngine-independent applications with Python NDB API? I need to host some basic scripts with database on AE, but I don't want to vendor lockin into the service.
NDB was designed and built on App Engine. Turning it in to something portable would be a research project.
You could use no DB at all if you don't need to store data, or you can use Cloud SQL which is really a mysql like instance for your application. In any case, if you use AppScale you can move your App Engine application whereever you want, thus there is no vendor lock-in.
Is it possible for one GAE application to access the datastore of another GAE application (both applications are hosted under the same Google account) using Objectify? If so, how can I pass service account credentials to Objectify (which API calls)?
It is not possible. Objectify is a very simple and convenient lightweight ORM that sits on top of a GAE Datastore, thus shielding the developer from most of the complexities of using JDO/JPA.
Nowhere in the documentation have I seen the scenario you describe mentioned because that is not the problem it is trying to solve.
I suspect what you will probably need to do is create a Web Service that exposes your GAE application (whose data you want) through an API. Then have your other GAE application call those service methods to obtain the data it needs.
Alternatively, you can use something called remote_api. It allows you to access and manipulate a GAE Datastore remotely.
Below are some links I just found to similar questions after posting my answer:
Can I access Datastore entities of my other Google App Engine Applications
Can one application access other applications data querying the key in Google App Engine?
A solution is to have only one "GAE application" but to make different Modules in your application. The Datastore will be shared between the modules.
Another solution is to use the Remote API (https://developers.google.com/appengine/docs/java/tools/remoteapi), but you won't be able to use Objectify, I think...
I have my website currently hosted on paid server, but i want to transfer it on GAE.
How can i do it? Can anyone please help me in this case.I'd appreciate your help.
Thanks:)
1) First you will have to adapt your website to the GAE framework (python with django or the new Java environment). You can test your work by downloading the SDK of GAE which offer a local server.
2) Then create an account on appengine.google.com and upload your application on something.appspot.com, test it.
3) If you have a domain name, create a google apps account on this domain, and finally bind this domain with your GAE website. Here is the Google doc.
If it is just a static website which does not need server side scripts or a database, then you might want to look into Google Sites instead of Appengine. You can find out more about Sites here: http://www.google.com/sites/help/intl/en/overview.html
If you do have some server side logic going on, you will need to convert it to either python or java and convert your relational database to Google's Data API which does not support the SQL your current database uses. You can read more about the APIs and what is supported with the Data API and tutorials at: http://code.google.com/appengine/
In response to sanorita's comment "Actually, it's generated html and not plain html. and google appengine is for static data... right?":
AppEngine can host static data, but that is far from its intent.
The purpose of AppEngine is to allow developers to easily deploy their dynamic applications on Google's infrastructure. In the end, assuming you have programmed your app in effective ways to handle scaling (basically just noting that writes to the database are expensive, and contention is the root of all evil) you can handle nearly any amount of traffic.