dart + aqueduct + postgresql

安装 dart:
sudo apt-get update
sudo apt-get install apt-transport-https
sudo sh -c 'curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -'
sudo sh -c 'curl https://storage.googleapis.com/download.dartlang.org/linux/debian/dart_stable.list > /etc/apt/sources.list.d/dart_stable.list'
sudo apt-get update
sudo apt-get install dart

export PATH="$PATH:/usr/lib/dart/bin"
echo 'export PATH="$PATH:/usr/lib/dart/bin"' >> ~/.profile

安装 aqueduct:
pub global activate aqueduct
export PATH="$PATH":"$HOME/.pub-cache/bin"
pub run aqueduct serve (aqueduct serve)
pub run aqueduct serve -p 8889 -n 10 --timeout 60

Creating new cluster 9.5/main ...
config /etc/postgresql/9.5/main
data /var/lib/postgresql/9.5/main
locale en_US
socket /var/run/postgresql
port 5432

ubuntu中管理用户和用户组
1. 添加一个用户组并指定id为1002
sudo groupadd －g 1002 www

2. 添加一个用户到www组并指定id为1003
sudo useradd wyx -g 1002 -u 1003 -m

3. 修改用户的密码
sudo passwd wyx

4. 删除一个用户
sudo userdel wyx

5. 为该用户添加sudo权限
sudo usermod -a -G adm wyx
sudo usermod -a -G sudo wyx

6. 查看所有用户和用户组：
cat /etc/passwd
cat /etc/group

安装 postgresSQL: https://www.cnblogs.com/wwh/p/11605240.html
安装 postgresql: ubuntu18.04安装postgresql9.5/postgresql9.6版本
host all all 0.0.0.0 0.0.0.0 md5
应为：host all all 0.0.0.0/0 md5
彻底卸载 postgreSQL .etc: https://www.cnblogs.com/jimlee027/p/6276723.html
恢复数据库：aqueduct db upgrade --connect postgres://postgres:password@localhost:5432/postgres
设置授权客户端：aqueduct auth add-client --id com.app.test --secret supersecret --connect postgres://username:password@localhost:5432/myapp （https://cloud.tencent.com/developer/article/1630987）

Usage: aqueduct serve [arguments]

Options:
--version Prints version of this tool
--[no-]color Toggles ANSI color
(defaults to on)
-h, --help Shows this
--[no-]stacktrace Shows the stacktrace if an error occurs
--[no-]machine Output is machine-readable, usable for creating tools on top of this CLI. Behavior varies by command.
-d, --directory Project directory to execute command in
--timeout Number of seconds to wait to ensure startup succeeded.
(defaults to "45")
--ssl-key-path The path to an SSL private key file. If provided along with --ssl-certificate-path, the application will be HTTPS-enabled.
--ssl-certificate-path The path to an SSL certicate file. If provided along with --ssl-certificate-path, the application will be HTTPS-enabled.
--[no-]observe Enables Dart Observatory
--ipv6-only Limits listening to IPv6 connections only.
-p, --port The port number to listen for HTTP requests on.
(defaults to "8888")
-n, --isolates Number of isolates processing requests
-a, --address The address to listen on. See HttpServer.bind for more details; this value is used as the String passed to InternetAddress.lookup. Using the default will listen on any address.
-s, --channel The name of the ApplicationChannel subclass to be instantiated to serve requests. By default, this subclass is determined by reflecting on the application library in the [directory] being served.
-c, --config-path The path to a configuration file. This File is available in the ApplicationOptionsfor a ApplicationChannel to use to read application-specific configuration values. Relative paths are relative to [directory].
(defaults to "config.yaml")

postgresql 9.6:

/usr/lib/postgresql/9.6/bin/pg_ctl -D /var/lib/postgresql/9.6/main -l logfile start
Ver Cluster Port Status Owner Data directory Log file
9.6 main 5432 down postgres /var/lib/postgresql/9.6/main /var/log/postgresql/postgresql-9.6-main.log

其他参考资料：

Dart-Aqueduct框架开发系列（同 https://www.jianshu.com/p/6ff8339aecf7）

如何在 Ubuntu 上安装和配置 PostgreSQL

PostgreSQL 教程

PostgreSQL

报错解决方案：

https://github.com/stablekernel/aqueduct/issues/844

https://stackoverflow.com/questions/52174665/bad-state-postgresqlseverity-error-specified-parameter-types-do-not-match-col

来源：oschina

链接：https://my.oschina.net/u/2400070/blog/4318908

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Ubuntu