Package Exports
- aws-xray-sdk-postgres
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Readme
Requirements
AWS X-Ray SDK Core Postgres 6.1.0 or greater
AWS X-Ray and Postgres
AWS X-Ray Postgres package automatically records query information, request and response data. Simply patch the Postgres package via 'capturePostgres' as seen below.
The AWS X-Ray SDK Core has two modes - 'manual' and 'automatic'. Automatic mode uses the Continuation Local Storage package (CLS) and automatically keeps track of the current segment and subsegment. This is the default mode. Manual mode requires you pass around the segment reference. See examples below.
environment variables
POSTGRES_DATABASE_VERSION Sets additional data for the sql subsegment.
POSTGRES_DRIVER_VERSION Sets additional data for the sql subsegment.
Automatic mode example
var AWSXRay = require('aws-xray-sdk-core');
var capturePostgres = require('aws-xray-sdk-postgres');
var pg = capturePostgres(require('pg'));
...
var client = new pg.Client();
client.connect(function (err) {
...
client.query({name: 'moop', text: 'SELECT $1::text as name'}, ['brianc'], function (err, result) {
//automatically captures query information and error (if any)
});
});
...
var pool = new pg.Pool(config);
pool.connect(function(err, client, done) {
if(err) {
return console.error('error fetching client from pool', err);
}
var query = client.query('SELECT * FROM mytable', function(err, result) {
//automatically captures query information and error (if any)
});
});
Manual mode example
var AWSXRay = require('aws-xray-sdk-core');
var capturePostgres = require('aws-xray-sdk-postgres');
var pg = capturePostgres(require('pg'));
...
var client = new pg.Client();
client.connect(function (err) {
...
client.query({name: 'moop', text: 'SELECT $1::text as name'}, ['mcmuls'], function (err, result) {
//automatically captures query information and error (if any)
});
});
...
var pool = new pg.Pool(config);
pool.connect(function(err, client, done) {
if(err) {
return console.error('error fetching client from pool', err);
}
var query = client.query('SELECT * FROM mytable', function(err, result) {
//automatically captures query information and error (if any)
}, segment));
};