Schemas Config & schemagen Tool
The schemagen CLI tool generates libraries for Schemas. It makes it much less error-prone than using the Schemas low-level API, and comes with typed Move APIs when setting and retrieving records.
Using schemagen with the Dubhe framework
If you are using the Dubhe framework and have a dubhe.config.ts file in your project, you can edit your Schemas config directly in this file!
A Schemas config should be named dubhe.config.ts, and placed at the root of your project.
This is the minimal config:
import { DubheConfig } from "@0xobelisk/aptos-common";
export const dubheConfig = {
name: "example", // name of the Move project
description: "example desc", // description of the Move project
schemas: {}, // an empty config with no schemas，
} as DubheConfig;Generating the schemas
To generate the schemas, run pnpm dubhe schemagen ./dubhe.config.ts in the same folder as the config file.
Schema Data
Currently, Schema supports all the basic types of Move, and will be added later according to the demand.
export const dubheConfig = {
name: "example",
description: "example desc",
schemas: {
student_management: {
data: [
{
name: "Class",
fields: {
name: "string",
teacher: "string",
},
},
{
name: "Student",
fields: {
name: "string",
age: "u8",
class: "Class",
},
},
],
},
},
} as DubheConfig;Schema structure
Schema currently supports three storage structures, StorageValue, StorageMap, StorageDoubleMap.
export const dubheConfig = {
name: "example",
description: "example desc",
schemas: {
student_management: {
data: [
{
name: "Class",
fields: {
name: "string",
teacher: "string",
},
},
{
name: "Student",
fields: {
name: "string",
age: "u8",
class: "Class",
},
},
],
structure: {
next_student_id: "StorageValue<u32>",
student_info: "StorageMap<u32, Student>",
},
},
},
} as DubheConfig;Schema events
export const dubheConfig = {
name: "example",
description: "example desc",
schemas: {
student_management: {
data: [
{
name: "Class",
fields: {
name: "string",
teacher: "string",
},
},
{
name: "Student",
fields: {
name: "string",
age: "u8",
class: "Class",
},
},
],
structure: {
next_student_id: "StorageValue<u32>",
student_info: "StorageMap<u32, Student>",
},
events: [
{
name: "StudentAdded",
fields: {
student_id: "u32",
student: "Student",
},
},
{
name: "StudentRemoved",
fields: {
student_id: "u32",
},
},
],
},
},
} as DubheConfig;