使用node.js将数据插入Amazon Redshift有哪些方法?
这应该非常简单,但我无法找到任何有效加载的具体示例。
答案 0 :(得分:16)
这样做的一种方法是使用AWS node.js SDK(文档中有example)将数据加载到S3中,然后使用node-pg来{{3将数据导入Redshift:
var pg = require('pg');
var conString = "postgres://user:password@db-endpoint:port/schema";
var client = new pg.Client(conString);
client.connect(function(err) {
if(err) {
return console.error('could not connect to postgres', err);
}
//assuming credentials are exported as enviornment variables,
//both CLI- and S3cmd-style are supported here.
//Also, you may want to specify the file's format (e.g. CSV),
//max errors, etc.
var copyCmd = 'copy my_redshift_table from \'s3://your_bucket/your_file\' credentials \'aws_access_key_id='
+ (process.env.AWS_ACCESS_KEY || process.env.AWS_ACCESS_KEY_ID)
+ ';aws_secret_access_key='
+ (process.env.AWS_SECRET_KEY || process.env.AWS_SECRET_ACCESS_KEY)
+ '\'';
client.query(copyCmd, function(err, result) {
if(err) {
return console.error('error running query', err);
}
logger.info("redhshift load: no errors, seem to be successful!");
client.end();
});
});
请注意,您无需运行任何特殊驱动程序。