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

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

npm install bigquery

Follow the doc: http://gappsnews.blogspot.tw/2013/10/connect-cloud-platform-bigquery-using.html

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

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'
});

About 2015Q1 end, google start to deprecate the client_secret file download. You can change the init method like this:

bq.init({
  client_email: 'your-client-email@developer.gserviceaccount.com',
  key_pem: '/path-to-key.pem'
});

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));
});

Retrieve results from a previously run query. Larger queries will timeout and respond with no data before the results are collected. Use this to retrieve the results. Below is an example of querying and waiting for results.

bq.job.query(prjId, 'select count(*) from publicdata:samples.wikipedia', function(e,r,d){
  if(e) console.log(e);
  if(d.jobIsComplete){
      console.log(JSON.stringify(d));
  } else {
       bq.job.getQueryResults(prjId, d.jobReference.jobId, function(e,r,d){
          console.log(JSON.stringify(d));
       }
  }
});

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 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);
});
bq.table.get(prjId, 'test123', 'table_name', function(e,r,d){
  if(e) console.log(e);
  console.log(d);
});
bq.table.delete(prjId, 'dataset_name', 'table_name', function(e,r,d){
  if(e) console.log(e);
  console.log(d);
});
bq.dataset.get(prjId, 'dataset_name', function(e,r,d){
  if(e) console.log(e);
  console.log(d);
});
bq.dataset.delete(prjId, 'dataset_name', 'table_name2', function(e,r,d){
  if(e) console.log(e);
  console.log(d);
});