bigquery
This is a simple sdk for using google bigquery. Still working... if any problem, please let me know.
Want to know what is BigQuery? Look my slide: http://www.slideshare.net/peihsinsu/google-bigquery-introduction
Installation
npm install bigquery
Apply service account
Follow the doc: http://gappsnews.blogspot.tw/2013/10/connect-cloud-platform-bigquery-using.html
Convert p12 key
From admin console, create a service account, save the client_secrets.json and it's key
ex: Translate p12 to pem
openssl pkcs12 -in privatekey.p12 -out privatekey.pem -nocerts
openssl rsa -in privatekey.pem -out key.pem
or
openssl pkcs12 -in privatekey.p12 -nodes -nocerts > key.pem
Initial
Load bigquery lib, specify your project id then setup the service account and the client_secret.json file path, pem key file path for auth use.
var bq = require('bigquery')
, fs = require('fs')
, prjId = 'your-bigquery-project-id'; //you need to modify this
bq.init({
client_secret: '/path-to-client_secret.json',
key_pem: '/path-to-key.pem'
});
Do Query
Query the dataset that you have. The sample bellow is to query the public dataset of wikipedia.
bq.job.query(prjId, 'select count(*) from publicdata:samples.wikipedia', function(e,r,d){
if(e) console.log(e);
console.log(JSON.stringify(d));
});
Load data
Before load data, you must create your dataset and table first. After that, you can use the following code to load data. (In this case test is the dataset id, testtb1 is the table name.)
var data = [
{
"insertId": "201403221228", //option
"json": {
"name": "simon",
"sex": "M",
"age": 35
}
}
];
bq.job.load(prjId, 'test', 'testtb1', data, function(e,r,d){
if(e) console.log(e);
console.log(JSON.stringify(d));
})
PS: The insertId use for prevent the duplicate insert of data.
Create Dataset & Table
Create dataset and table, the schema please ref: https://developers.google.com/bigquery/preparing-data-for-bigquery
bq.dataset.create(prjId, 'dataset_name', function(e,r,d){
if(e) console.log(e);
console.log(d);
});
var schema = {
"fields": [
{
"name": "field1",
"type": "string",
"description": "test"
},
{
"name": "field2",
"type": "integer",
"description": "test for int"
}
]
};
bq.table.create(prjId, 'dataset_name', 'table_name', schema, function(e,r,d){
if(e) console.log(e);
console.log(d);
});
Get Table
bq.table.get(prjId, 'test123', 'table_name', function(e,r,d){
if(e) console.log(e);
console.log(d);
});
Delete Table
bq.table.delete(prjId, 'dataset_name', 'table_name', function(e,r,d){
if(e) console.log(e);
console.log(d);
});
Get Dataset
bq.dataset.get(prjId, 'dataset_name', function(e,r,d){
if(e) console.log(e);
console.log(d);
});
Delete Dataset
bq.dataset.delete(prjId, 'dataset_name', 'table_name2', function(e,r,d){
if(e) console.log(e);
console.log(d);
});