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--
-- This file is part of TALER
-- Copyright (C) 2022-2023 Taler Systems SA
--
-- TALER is free software; you can redistribute it and/or modify it under the
-- terms of the GNU General Public License as published by the Free Software
-- Foundation; either version 3, or (at your option) any later version.
--
-- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-- A PARTICULAR PURPOSE. See the GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License along with
-- TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
--
-- @file merchant-0004.sql
-- @brief database helper functions for postgres used by the merchant and function for plugin_merchantdb_postgres.c
-- @author Priscilla Huang
BEGIN;
-- Check patch versioning is in place.
SELECT _v.register_patch('merchant-0004', NULL, NULL);
SET search_path TO merchant;
-- create table here!
CREATE TABLE IF NOT EXISTS merchant_template
(template_serial BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY
,merchant_serial BIGINT NOT NULL
REFERENCES merchant_instances (merchant_serial) ON DELETE CASCADE
,template_id VARCHAR NOT NULL
,template_description VARCHAR NOT NULL
,image BYTEA
,template_contract VARCHAR NOT NULL -- in JSON format
,UNIQUE (merchant_serial, template_id)
);
COMMENT ON TABLE merchant_template
IS 'template used by the merchant (may be incomplete, frontend can override)';
COMMENT ON COLUMN merchant_template.template_description
IS 'Human-readable template description';
COMMENT ON COLUMN merchant_template.image
IS 'NOT NULL, but can be 0 bytes; must contain an ImageDataUrl';
COMMENT ON COLUMN merchant_template.template_contract
IS 'The template contract will contains some additional information.';
CREATE TABLE IF NOT EXISTS merchant_webhook
(webhook_serial BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY
,merchant_serial BIGINT NOT NULL
REFERENCES merchant_instances (merchant_serial) ON DELETE CASCADE
,webhook_id VARCHAR NOT NULL
,event_type VARCHAR NOT NULL
,url VARCHAR NOT NULL
,http_method VARCHAR NOT NULL
,header_template VARCHAR
,body_template VARCHAR
,UNIQUE (merchant_serial, webhook_id)
);
COMMENT ON TABLE merchant_webhook
IS 'webhook used by the merchant (may be incomplete, frontend can override)';
COMMENT ON COLUMN merchant_webhook.event_type
IS 'Event of the webhook';
COMMENT ON COLUMN merchant_webhook.url
IS 'URL to make the request to';
COMMENT ON COLUMN merchant_webhook.http_method
IS 'http method use by the merchant';
COMMENT ON COLUMN merchant_webhook.header_template
IS 'Template for the header of the webhook, to be modified based on trigger data';
COMMENT ON COLUMN merchant_webhook.body_template
IS 'Template for the body of the webhook, to be modified based on trigger data';
CREATE TABLE IF NOT EXISTS merchant_pending_webhooks
(webhook_pending_serial BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY
,merchant_serial BIGINT NOT NULL
REFERENCES merchant_instances (merchant_serial) ON DELETE CASCADE
,webhook_serial BIGINT NOT NULL
REFERENCES merchant_webhook (webhook_serial) ON DELETE CASCADE
,next_attempt INT8 NOT NULL DEFAULT(0)
,retries INT4 NOT NULL DEFAULT(0)
,url VARCHAR NOT NULL
,http_method VARCHAR NOT NULL
,header VARCHAR
,body VARCHAR
,UNIQUE (merchant_serial, webhook_pending_serial)
);
COMMENT ON TABLE merchant_pending_webhooks
IS 'webhooks that still need to be executed by the merchant';
COMMENT ON COLUMN merchant_pending_webhooks.url
IS 'URL to make the request to';
COMMENT ON COLUMN merchant_pending_webhooks.webhook_serial
IS 'Reference to the configured webhook template';
COMMENT ON COLUMN merchant_pending_webhooks.retries
IS 'How often have we tried this request so far';
COMMENT ON COLUMN merchant_pending_webhooks.next_attempt
IS 'Time when we should make the next request to the webhook';
COMMENT ON COLUMN merchant_pending_webhooks.http_method
IS 'http method use for the webhook';
COMMENT ON COLUMN merchant_pending_webhooks.header
IS 'Header of the webhook';
COMMENT ON COLUMN merchant_pending_webhooks.body
IS 'Body of the webhook';
COMMIT;
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