tarsius

TARSIUS MANIFEST

Tables

Structure

tables:
  <name_table>:
    <name_field>:
      <properties>

example

tables :
  # Create table author
  author:
    id:
      type: serial
      notNull: true
      primaryKey: true
    name:
      type: varchar(100)
      notNull: true
    email:
      type: varchar(150)
      notNull: true
    created:
      type: timestamptz

Include Table

You can include table resource from other tarsius manifest

tables :
  # Create table posts
  author: ../author/tarsius.yml
  post:
    id:
      type: serial
      notNull: true
      primaryKey: true
    title:
      type: varchar(100)
      notNull: true
    content:
      type: text
    authorid:
      type: author.id # Set set authorid as a FK author table
      notNull: true
      isCascade: true
    created:
      type: timestamptz

Type Data of Field

Type	Description
bool	A Boolean data type can hold one of three possible values: true, false or null.
varchar	VARCHAR(n) is the variable-length character string.
int	Integer is a numeric types
timestamp	TIMESTAMP stores both date and time values.
timestamptz	TIMESTAMPTZ is a timezone-aware timestamp data type. It is the abbreviation for timestamp with time zone.

Properties

properties	description	value
type	Type data of field	String
notNull	set field as a NOT NULL type	Bool
primaryKey	set field as a primary key	Bool
isCascade	set field as ON DELETE CASCADE and ON UPDATE CASCADE	Bool
isUnique	set field as UNIQUE data	Bool

Create project

Create new project

$ mkdir project-test
$ cd project-test

Create tarsius.yml for data modeling

tables :
  # Create table author
  author:
    id:
      type: serial
      notNull: true
      primaryKey: true
    name:
      type: varchar(100)
      notNull: true
    email:
      type: varchar(150)
      notNull: true
    created:
      type: timestamptz

  # Create table post
  post:
    id:
      type: serial
      notNull: true
      primaryKey: true
    title:
      type: varchar(100)
      notNull: true
    content:
      type: text
    authorid:
      type: author.id
      notNull: true
    created:
      type: timestamptz

use anchor

tables :
  # Create table author
  author:
    id: &idAnchor
      type: serial
      notNull: true
      primaryKey: true
    name: &nameAnchor
      type: varchar(100)
      notNull: true
    email:
      <<: *nameAnchor
    created: &dateAnchor
      type: timestamptz

  # Create table post
  post:
    id:
      <<: *idAnchor
    title:
      <<: *nameAnchor
    content:
      type: text
    authorid:
      # Set joining to `authors` table
      type: author.id
      notNull: true
    created:
      <<: *dateAnchor

SQL

Configuration

$ tarsius sql config

Create table

$ tarsius sql create

Initialize your project

$ tarsius init
or
$ tarsius init -s go -p ../project-directory

Environment Variables

The generated code accepts env vars as well. They are :

• TS_DB_HOST
• TS_DB_PORT
• TS_DB_NAME
• TS_DB_USER
• TS_DB_PASS
• TS_CORS_ORIGIN
• TS_CORS_METHODS
• TS_CORS_HEADERS

TS_CORS_ORIGIN will also automaticaly sets basic CORS methods and headers. You can override them with TS_CORS_METHODS and TS_CORS_HEADERS.

Run project

$ tarsius run

Access it on http://localhost:8000

GraphQL

Query to get the all authors

query {
  authors {
    id
    name
    email
    created
  }
}

Query to get a specific author

query {
  author(id: 1) {
    id
    name
    email
  }
}

Query with pagination

query{
  authors(page:1,pageSize:4){
    id
    name
    email
  }
}

Create new author using mutation

mutation {
  createAuthor(name: "Ibnu Yahya", email: "[e-mail]") {
    id
    name
    email
  }
}

Update an author using mutation

mutation {
  updateAuthor(id: 2, name: "ibnu Yahya", email: "[e-mail]") {
    id
    name
    email
  }
}

Delete an author using mutation

mutation {
  deleteAuthor(id: 2) {
    id
  }
}

Query to get the posts with its relation author

query {
  posts {
    id
    title
    content
    author {
      id
      name
      email
    }
  }
}