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ArangoDB for Node.js Integration | ArangoDB 2012
Note: Our new official nodejs driver is arangojs. You also can look at this blogpost about the new driver.
We got a note from Anders Elo from Sweden. He told us that he has released a ArangoDB client for node.js. Awesome! :-) You can find it on Github under the URL https://github.com/kaerus/arango-client. To install locally
npm install git://github.com/kaerus/arango-client
Anders also writes:
- It's still lacking features and is prone to changes but it works quite nice, atleast I think so. :) I've not documented this project as of yet due to lack of time so I'll briefly instruct you by some examples.*
var arango = require('arango.client'), util = require('util');
/* Prepare a connection, defaults {protocol:'http', hostname:'127.0.0.1', port: 8529} */
db = new arango.Connection({name:"testcollection"});
/* we need to first create our test collection */
db.collection.create(function(err,ret){
console.log("err(%s): ",err, ret);
});
/* create a new document in collection */
db.document.create({a:"test"},function(err,ret){
if(err) console.log("error(%s): ", err,ret);
else console.log(util.inspect(ret));
});
/* create a document and a new collection on demand */
db.document.create(true,"newcollection",{a:"test"},function(err,ret){
if(err) console.log("error(%s): ", err,ret);
else console.log(util.inspect(ret));
});
/* alternate style utilizing events */
db.document.list().on('result',function(result){
console.log(util.inspect(result));
}).on('error',function(error){
console.log("error(%s):", error.code, error.message);
});
The interface to the ArangoDB REST api resides in the lib/api directory. You can find out more details there. Anders also includes some tests, just runt "npm test" to execute them.
10 Comments
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I am trying to include this on a intellij project. I get this error.
db.document.create_(“newcollection”,{a:”test”},function(err,ret){
^
TypeError: Object # has no method ‘create_’
at Object. (/Users/shekart/WebstormProjects/byeh_new/arango_conn.js:26:13)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:901:3
Process finished with exit code 8
If I change the _create to create, I get the below message
error(404): collection /_api/collection/newcollection not found
I am kinda new to all this. Really appreciate any pointers.
– Shekar
The api for “on demand collections” has changed, I have updated the example. Hint: Anders includes many examples in the test directory of the module 🙂
I have installed the latest node module.
Here is the version info
“name”: “arango.client”,
“version”: “0.6.2”,
I looked at the test folder ..
https://github.com/kaerus-component/arango/blob/master/test/arango.js
I see the below definition…
var libs = [
‘../lib/arango’,
‘./lib/qunit-1.10.js’
];
I dont see a relative folder ../lib/arango.
And when I try to run this .. I get
$ node arango.js
/Users/shekart/WebstormProjects/byeh_new/node_modules/arango.client/test/arango.js:11
module = QUnit.module;
^
ReferenceError: QUnit is not defined
I am sorry if I am posting trivial questions but I really appreciate any help.
– Shekar
to run the tests on a fresh node installation in the current version of arango.client I had to install two additional modules, qunit and amdefine via
sudo npm install amdefine
sudo npm install qunit
Here is what I see on node_modules folder ..
$ pwd
/Users/shekart/WebstormProjects/byeh_new/node_modules
$ ls
amdefine arango.client express jade qunit
I have installed both qunit and amdefine.
I still see the same error.
– Shekar
I wrote something in the Google Group (this is a bit more comfortable than the comment’s section :-))
Disqus –
I think I got over some hiccups :).
I believe we need var QUnit = require(‘qunit’);
I now have new set of error:
/usr/local/bin/node collection.js
/Users/shekart/WebstormProjects/byeh_new/node_modules/arango.client/test/api/collection.js:19 asyncTest(‘create’,2,function(){
^
ReferenceError: asyncTest is not defined
at Object. (/Users/shekart/WebstormProjects/byeh_new/node_modules/arango.client/test/api/collection.js:19:1) at runFactory (/Users/shekart/WebstormProjects/byeh_new/node_modules/arango.client/node_modules/amdefine/amdefine.js:181:30) at define (/Users/shekart/WebstormProjects/byeh_new/node_modules/arango.client/node_modules/amdefine/amdefine.js:275:13) at Object. (/Users/shekart/WebstormProjects/byeh_new/node_modules/arango.client/test/api/collection.js:10:1) at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
Process finished with exit code 8
I tried to precede it with function asyncTest(..
I then get a different error ..
/Users/shekart/WebstormProjects/byeh_new/node_modules/arango.client/test/api/collection.js:19 function asyncTest(‘create’,2,function(){
^^^^^^^^
SyntaxError: Unexpected string
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:901:3
Any idea on whats going on?
– Shekar
The blog is not a suitable place for Support. Please come to Google Groups.
I have installed both qunit and amdefine.
I still see the same error.
– Shekar
Here is what I see on node_modules folder ..
$ pwd
/Users/shekart/WebstormProjects/byeh_new/node_modules
$ ls
amdefine arango.client express jade qunit