What is the difference between Couchbase java-client and couchbase-client?
I can see bulk get operation in java-client but not in couchbase-client
Is it possible to do bulk get operation in if we use couchbase-client?
For couchbase-client you refer to REST API Couchbase?
if this its true SDK java client create connection with database directly and there are many functions to get, create and update documents
you can map document in java class and even if you want put your Example.java class directly in document in spring there are documentarion for implement this.
In other way with API you can send n1ql query the response contain the document in json format.
Depends on the implementation you want.
I recomended that you will use SDK JAVA
Good luck.
Related
I'd like to write an object to gcp object store, while using the x-goog-if-generation-match feature. Using #google-cloud/storage npm library, the file object does not seem to have an option for setting the required object generation.
What are the alternatives?
As you noticed, the #google-cloud/storage npm library doesn't support generation and metageneration preconditions.
As an alternative, you may use either the Storage XML API or the Storage JSON API which do support it. Depending on if you want to use one or the other, you'll be able to use preconditions via HTTP Headers or query string parameters. You'll find the whole list of those here.
Another alternative is to use some kind of optimistic locking:
get the generation id
write object
get the generation id again
repeat until generation after = generation before + 1
what is the best way to handle Json api request in symfony?
for example I have api of customers that allowed me to add new customer, edit and delete, and read as well
my question is how to develope it in symfony, as a bundle? like i have a database? with entity class?
if you have any tutorial it will be great
As a Client:
You can use Guzzle to make HTTP calls for you and then convert the json responses using native json_decode.
Other option is to use a Rest client, you will find many of them on packagist, here is one:
https://packagist.org/packages/Mashape/unirest-php
As a Server:
FOSRestBundle, its gonna provide you with many features that you'll need. here is a tutorial:
http://williamdurand.fr/2012/08/02/rest-apis-with-symfony2-the-right-way/
Of course you should check for more sources as well, I have a project of my own which uses it and you can check some code:
https://github.com/renatomefidf/sammui
You can also check the LiipHelloBundle for other multiple usages and examples:
https://github.com/liip/LiipHelloBundle
Good luck!
I know how to do it for views, for example:
http://127.0.0.1:8092/<my_bucket>/_design/all/_view/all?full_set=true&key=<my_document_key>&connection_timeout=60000
And I tried:
http://127.0.0.1:8091/contacts/hello
(after creating via the UI a document with the key hello).
And the response was "Not Found."
What am I doing wrong?
Thanks,
Michael
There is no REST API for retrieving documents by key. You can either write your own thin service layer that uses the client SDK internally, or as of Couchbase 4.0, use the N1QL REST API to get the document through a query by key:
SELECT * FROM bucket USE KEYS [docId];
You can read about using the N1QL service endpoint here: http://developer.couchbase.com/documentation/server/4.1/n1ql/n1ql-rest-api/index.html
(Edit: Changed N1QL syntax to actually work. Thanks Gerald.)
In following way we can access couchbase document
Syntax:
hostname:8091/pools/default/buckets/{bucketname}/docs/{docid}
http://localhost:8091/pools/default/buckets/Aggregation/docs/AvgSumAssuredByProduct
Where
To access bucket related, use api: http://localhost:8091/pools/default/buckets/
Bucket Name: Aggregation
docid : AvgSumAssuredByProduct
If you want to use it for development purpose then you can use CLI or admin console (UI).
In production you should ALWAYS use language specific client SDK. Couchbase SDKs are intelligent as they have details about cluster map. Client knows before hand about which node should be used for CRUD operation.
I want to load some data into mysql from a restful web services.
The API accepts http requests and returns xml output.
I want to load the xml output into mysql.
How can I do this ?
as I see you would like to do two steps in one ;) First that you should do, creating a Java object from XML (unmarshalling) and 2nd, save the object to DB.
For 1st, you can use JAXB or other free tool. For 2nd, use Hibernate ;)
I am fairly new to Grails, and I have a few questions on how to proceed.
I have a REST API which I will use to retrieve the data , for exemple :
http://localhost/api/data/list
Which gives this result :
{"data":[{"col1":"blabla","col2":0},{"col1":"moreblabla","col2":1}]}
I want to use Grails to build an interface for those data (show, edit, add, delete)
Should I create a domain called Data ?
How do I tell Grails to to use the REST API and not a database ?
I am really clueless so I hope you can light the way ;)
Thank you.
Grails currently doesn't have a GORM plugin for using a REST endpoint as a persistence store. That is planned functionality, but is not slated to land until later this year (2012 - Q4).
That being said, you can write a service that will allow you to do basic CRUD operations on an object and get/persist to and from your REST endpoint. The place to start with that is the HttpBuilder, and perhaps the REST client plugin.