http
HTTP client for PostgreSQL, allows web page retrieval inside the database.
Module:
Categories:
Overview
PGDG 1st Party Extension: pg_http : HTTP client for PostgreSQL, allows web page retrieval inside the database.
Information
- Extension ID: 4020
- Extension Name:
http - Package Name:
pg_http - Category:
UTIL - License: MIT
- Website: https://github.com/pramsey/pgsql-http
- Language: C
- Extra Tags:
supabase - Comment: N/A
Metadata
- Latest Version: 1.6
- Postgres Support:
17,16,15,14,13 - Need Load: Shared library do not need explicit loading
- Need DDL: Need
CREATE EXTENSIONDDL - Relocatable: Unknown
- Trusted: Untrusted, Require Superuser to Create
- Schemas: N/A
- Requires: N/A
RPM / DEB
- RPM Repo: PGDG
- RPM Name:
pgsql_http_$v* - RPM Ver :
1.6 - RPM Deps: N/A
- DEB Repo: PGDG
- DEB Name:
postgresql-$v-http - DEB Ver :
1.6 - DEB Deps: N/A
Packages
Installation
Install http via the pig CLI tool:
pig ext install pg_http; # Extension Namepig ext install http; # normalized package name
Install pg_http via Pigsty playbook:
./pgsql.yml -t pg_extension -e '{"pg_extensions": ["pg_http"]}' # -l <cls>
Install pg_http RPM from YUM repo directly:
dnf install pgsql_http_17*;
dnf install pgsql_http_16*;
dnf install pgsql_http_15*;
dnf install pgsql_http_14*;
dnf install pgsql_http_13*;
Install pg_http DEB from APT repo directly:
apt install postgresql-17-http;
apt install postgresql-16-http;
apt install postgresql-15-http;
apt install postgresql-14-http;
apt install postgresql-13-http;
Enable http extension on PostgreSQL cluster：
CREATE EXTENSION http;
Usage
https://github.com/pramsey/pgsql-http
Request / Response Schema:
Composite type "public.http_request"
Column | Type | Modifiers
--------------+-------------------+-----------
method | http_method |
uri | character varying |
headers | http_header[] |
content_type | character varying |
content | character varying |
Composite type "public.http_response"
Column | Type | Modifiers
--------------+-------------------+-----------
status | integer |
content_type | character varying |
headers | http_header[] |
content | character varying |
Examples
Sending HTTP GET requests with SQL
CREATE EXTENSION http;
-- get content
SELECT content FROM http_get('http://httpbun.com/');
-- get status and content_type
SELECT status, content_type FROM http_get('http://httpbun.com/');
-- status | content_type
-- --------+--------------------------
-- 200 | text/html; charset=utf-8
-- get headers
SELECT (unnest(headers)).* FROM http_get('http://httpbun.com/');
-- field | value
-- ---------------------------+--------------------------------------------------
-- Location | https://httpbun.com/
-- Date | Mon, 04 Nov 2024 09:00:36 GMT
-- Content-Length | 0
-- Connection | close
-- alt-svc | h3=":443"; ma=2592000
-- content-security-policy | frame-ancestors 'none'
-- content-type | text/html
-- date | Mon, 04 Nov 2024 09:00:37 GMT
-- strict-transport-security | max-age=31536000; includeSubDomains; preload
-- x-content-type-options | nosniff
-- x-powered-by | httpbun/af040d24038613575a85f74c2283ae79f8169927
-- (11 rows)
SELECT status, content::json->'form' AS form FROM http_post('http://httpbun.com/post', jsonb_build_object('myvar','myval','foo','bar'));
Issue http put requests:
SELECT status, content_type, content::json->>'data' AS data
FROM http_put('http://httpbun.com/put', 'some text', 'text/plain');
-- status | content_type | data
-- --------+------------------+-----------
-- 200 | application/json | some text
Issue http post request:
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