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77 lines
3.4 KiB
77 lines
3.4 KiB
pg-connection-string
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====================
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[](https://nodei.co/npm/pg-connection-string/)
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[](https://travis-ci.org/iceddev/pg-connection-string)
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[](https://coveralls.io/github/iceddev/pg-connection-string?branch=master)
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Functions for dealing with a PostgresSQL connection string
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`parse` method taken from [node-postgres](https://github.com/brianc/node-postgres.git)
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Copyright (c) 2010-2014 Brian Carlson (brian.m.carlson@gmail.com)
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MIT License
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## Usage
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```js
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var parse = require('pg-connection-string').parse;
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var config = parse('postgres://someuser:somepassword@somehost:381/somedatabase')
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```
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The resulting config contains a subset of the following properties:
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* `host` - Postgres server hostname or, for UNIX domain sockets, the socket filename
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* `port` - port on which to connect
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* `user` - User with which to authenticate to the server
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* `password` - Corresponding password
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* `database` - Database name within the server
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* `client_encoding` - string encoding the client will use
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* `ssl`, either a boolean or an object with properties
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* `rejectUnauthorized`
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* `cert`
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* `key`
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* `ca`
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* any other query parameters (for example, `application_name`) are preserved intact.
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## Connection Strings
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The short summary of acceptable URLs is:
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* `socket:<path>?<query>` - UNIX domain socket
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* `postgres://<user>:<password>@<host>:<port>/<database>?<query>` - TCP connection
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But see below for more details.
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### UNIX Domain Sockets
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When user and password are not given, the socket path follows `socket:`, as in `socket:/var/run/pgsql`.
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This form can be shortened to just a path: `/var/run/pgsql`.
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When user and password are given, they are included in the typical URL positions, with an empty `host`, as in `socket://user:pass@/var/run/pgsql`.
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Query parameters follow a `?` character, including the following special query parameters:
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* `db=<database>` - sets the database name (urlencoded)
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* `encoding=<encoding>` - sets the `client_encoding` property
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### TCP Connections
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TCP connections to the Postgres server are indicated with `pg:` or `postgres:` schemes (in fact, any scheme but `socket:` is accepted).
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If username and password are included, they should be urlencoded.
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The database name, however, should *not* be urlencoded.
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Query parameters follow a `?` character, including the following special query parameters:
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* `host=<host>` - sets `host` property, overriding the URL's host
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* `encoding=<encoding>` - sets the `client_encoding` property
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* `ssl=1`, `ssl=true`, `ssl=0`, `ssl=false` - sets `ssl` to true or false, accordingly
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* `sslmode=<sslmode>`
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* `sslmode=disable` - sets `ssl` to false
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* `sslmode=no-verify` - sets `ssl` to `{ rejectUnauthorized: false }`
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* `sslmode=prefer`, `sslmode=require`, `sslmode=verify-ca`, `sslmode=verify-full` - sets `ssl` to true
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* `sslcert=<filename>` - reads data from the given file and includes the result as `ssl.cert`
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* `sslkey=<filename>` - reads data from the given file and includes the result as `ssl.key`
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* `sslrootcert=<filename>` - reads data from the given file and includes the result as `ssl.ca`
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A bare relative URL, such as `salesdata`, will indicate a database name while leaving other properties empty.
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