dbt 是一個很不錯的進行etl 中的t 處理的工具，靈活簡單，我們需要寫的就是select 語句

dbt 幫助我們進行處理

測試集成了graphql 以及使用docker 運行

安裝

pip install dbt

創建簡單demo

使用dbt 處理

dbt init demoapp

配置profile(pg 數據庫)

~/.dbt/profiles.yml

default:

target: dev

outputs:

dev:

type: postgres

host: 127.0.0.1

user: root

pass: password

port: 5432

dbname: dbt

schema: dbt

threads: 3

pg:

target: dev

outputs:

dev:

type: postgres

host: 127.0.0.1

user: root

pass: password

port: 5433

dbname: dbt

schema: dbt

graphql 集成

docker-compose 文件

version: "3"

services:

graphql-engine:

image: hasura/graphql-engine:v1.0.0-alpha24

ports:

- "8080:8080"

depends_on:

- database

environment:

- "POSTGRES_PASSWORD:password"

command: >

/bin/sh -c "

graphql-engine --database-url postgres://root:password@database:5432/dbt serve --enable-console;

"

database:

image: postgres

environment:

POSTGRES_USER: "root"

POSTGRES_PASSWORD: "password"

POSTGRES_DB: "dbt"

ports:

- "5432:5432"

database2:

image: postgres

environment:

POSTGRES_USER: "root"

POSTGRES_PASSWORD: "password"

POSTGRES_DB: "dbt"

ports:

- "5433:5432"

修改簡單model

models/example/my_first_dbt_model.sql

-- Welcome to your first dbt model!

-- Did you know that you can also configure models directly within

-- the SQL file? This will override configurations stated in dbt_project.yml

-- Try changing 'view' to 'table', then re-running dbt

{{ config(materialized='view') }}

select 1 as id, 'v1' as version,'default' as v,'default' as v2

union all

select 2,'v2','default','default'

union all

select 3,'v3','default','default'

union all

select 4,'v4','default','default'

union all

select 5,'v5','default','default'

union all

select 6,'v6','default','default'

union all

select 7,'v7','default','default'

union all

select 8,'v8','default','default'

union all

select 9,'v9','default','default'

運行

docker-compose 啟動

docker-compose up -d

運行dbt

dbt fun

效果

支持graphql 配置

配置即可

數據查詢

參考資料

總結

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