convex
Version:
Client for the Convex Cloud
269 lines • 9.44 kB
TypeScript
/**
* Utilities for defining the schema of your Convex project.
*
* ## Usage
*
* Schemas should be placed in a `schema.ts` file in your `convex/` directory.
*
* Schema definitions should be built using {@link defineSchema},
* {@link defineTable}, and {@link s}. Make sure to export the schema as the
* default export.
*
* ```ts
* import { defineSchema, defineTable, s } from "convex/schema";
*
* export default defineSchema({
* messages: defineTable({
* body: s.string(),
* user: s.id("users"),
* }),
* users: defineTable({
* name: s.string(),
* }),
* });
* ```
*
* To learn more about schemas, see [Defining a Schema](https://docs.convex.dev/using/schemas).
* @module
*/
import { GenericId } from "@convex-dev/common";
import { GenericDocument, GenericTableIndexes } from "../server/data_model.js";
import { IdField, SystemFields, SystemIndexes } from "../server/system_fields.js";
import { Expand } from "../type_utils.js";
/**
* A Convex type defined in a schema.
*
* These should be constructed using {@link s}.
*
* This class encapsulates:
* - The TypeScript type of this Convex type.
* - The TypeScript type for the set of index field paths that can be used to
* build indexes on this type.
* - The table names referenced in `s.id` usages in this type.
* @public
*/
export declare class SchemaType<TypeScriptType, FieldPaths extends string> {
readonly type: TypeScriptType;
readonly fieldPaths: FieldPaths;
private _isSchemaType;
readonly referencedTableNames: Set<string>;
constructor(referencedTableNames?: Set<string>);
}
/**
* The schema builder.
*
* This builder allows you to define the types of documents stored in Convex.
* @public
*/
export declare const s: {
id<TableName extends string>(tableName: TableName): SchemaType<GenericId<TableName>, never>;
null(): SchemaType<null, never>;
number(): SchemaType<number, never>;
bigint(): SchemaType<bigint, never>;
boolean(): SchemaType<boolean, never>;
string(): SchemaType<string, never>;
bytes(): SchemaType<ArrayBuffer, never>;
literal<T extends string | number | bigint | boolean>(literal: T): SchemaType<T, never>;
array<T_1>(values: SchemaType<T_1, any>): SchemaType<T_1[], never>;
set<T_2>(values: SchemaType<T_2, any>): SchemaType<Set<T_2>, never>;
map<K, V>(keys: SchemaType<K, any>, values: SchemaType<V, any>): SchemaType<Map<K, V>, never>;
object<T_3 extends Record<string, SchemaType<any, any>>>(schema: T_3): ObjectSchemaType<T_3>;
union<T_4 extends [SchemaType<any, any>, SchemaType<any, any>, ...SchemaType<any, any>[]]>(...schemaTypes: T_4): SchemaType<T_4[number]["type"], T_4[number]["fieldPaths"]>;
};
/**
* Calculate the {@link SchemaType} for an object.
*
* This is used within the SchemaBuilder {@link s}.
* @public
*/
declare type ObjectSchemaType<SchemaValueType extends Record<string, SchemaType<any, any>>> = SchemaType<{
[Property in keyof SchemaValueType]: SchemaValueType[Property] extends SchemaType<infer InnerType, any> ? InnerType : never;
}, {
[Property in keyof SchemaValueType]: SchemaValueType[Property] extends SchemaType<any, infer FieldPaths> ? JoinFieldPaths<Property & string, FieldPaths> | Property : never;
}[keyof SchemaValueType] & string>;
/**
* Join together two index field paths.
*
* This is used within the SchemaBuilder {@link s}.
* @public
*/
declare type JoinFieldPaths<Start extends string, End extends string> = `${Start}.${End}`;
/**
* Extract all of the index field paths within a {@link SchemaType}.
*
* This is used within {@link defineTable}.
* @public
*/
declare type ExtractFieldPaths<T extends SchemaType<any, any>> = T extends SchemaType<any, infer FieldPaths> ? // Add in the system fields available in index definitions.
FieldPaths | keyof SystemFields : never;
/**
* Extract the {@link GenericDocument} within a {@link SchemaType} and
* add on the system fields.
*
* This is used within {@link defineTable}.
* @public
*/
declare type ExtractDocument<T extends SchemaType<any, any>> = T extends SchemaType<infer Value, any> ? Value extends GenericDocument ? Expand<SystemFields & Value> : never : never;
/**
* The definition of a table within a schema.
*
* This should be produced by using {@link defineTable}.
* @public
*/
export declare class TableDefinition<Document extends GenericDocument = GenericDocument, FieldPaths extends string = string, TableIndexes extends GenericTableIndexes = {}> {
private indexes;
private documentType;
/**
* @internal
*/
constructor(documentType: SchemaType<any, any>);
/**
* Define an index on this table.
*
* To learn about indexes, see [Defining Indexes](https://docs.convex.dev/using/indexes).
*
* @param name - The name of the index.
* @param fields - The fields to index, in order. Must specify at least one
* field.
* @returns A {@link TableDefinition} with this index included.
*/
index<IndexName extends string, FirstFieldPath extends FieldPaths, RestFieldPaths extends FieldPaths[]>(name: IndexName, fields: [FirstFieldPath, ...RestFieldPaths]): TableDefinition<Document, FieldPaths, Expand<TableIndexes & Record<IndexName, [FirstFieldPath, ...RestFieldPaths]>>>;
/**
* Export the contents of this definition.
*
* This is called internally by the Convex framework.
* @internal
*/
export(): {
indexes: {
indexDescriptor: string;
fields: string[];
}[];
referencedTableNames: Set<string>;
};
}
/**
* Define a table in a schema.
*
* You can either specify the schema of your documents as an object like
* ```ts
* defineTable({
* field: s.string()
* });
* ```
*
* or as a schema type like
* ```ts
* defineTable(s.object({
* field: s.string()
* }));
* ```
*
* @param documentSchema - The type of documents stored in this table.
* @returns A {@link TableDefinition} for the table.
*
* @public
*/
export declare function defineTable<DocumentSchema extends SchemaType<Record<string, any>, any>>(documentSchema: DocumentSchema): TableDefinition<ExtractDocument<DocumentSchema>, ExtractFieldPaths<DocumentSchema>>;
/**
* Define a table in a schema.
*
* You can either specify the schema of your documents as an object like
* ```ts
* defineTable({
* field: s.string()
* });
* ```
*
* or as a schema type like
* ```ts
* defineTable(s.object({
* field: s.string()
* }));
* ```
*
* @param documentSchema - The type of documents stored in this table.
* @returns A {@link TableDefinition} for the table.
*
* @public
*/
export declare function defineTable<DocumentSchema extends Record<string, SchemaType<any, any>>>(documentSchema: DocumentSchema): TableDefinition<ExtractDocument<ObjectSchemaType<DocumentSchema>>, ExtractFieldPaths<ObjectSchemaType<DocumentSchema>>>;
/**
* A type describing the schema of a Convex project.
*
* This should be constructed using {@link defineSchema}, {@link defineTable},
* and {@link s}.
* @public
*/
export declare type GenericSchema = Record<string, TableDefinition>;
/**
*
* The definition of a Convex project schema.
*
* This should be produced by using {@link defineSchema}.
* @public
*/
export declare class SchemaDefinition<Schema extends GenericSchema> {
private tables;
/**
* @internal
*/
constructor(tables: Schema);
/**
* Export the contents of this definition.
*
* This is called internally by the Convex framework.
* @internal
*/
export(): string;
}
/**
* Define the schema of this Convex project.
*
* This should be exported from a `schema.ts` file in your `convex/` directory
* like:
*
* ```ts
* export default defineSchema({
* ...
* });
* ```
*
* @param schema - A map from table name to {@link TableDefinition} for all of
* the tables in this project.
* @returns The schema.
*
* @public
*/
export declare function defineSchema<Schema extends GenericSchema>(schema: Schema): SchemaDefinition<Schema>;
/**
* Internal type used in Convex code generation!
*
* Convert a {@link SchemaDefinition} into a {@link server.GenericDataModel}.
*
* @public
*/
export declare type DataModelFromSchemaDefinition<SchemaDef extends SchemaDefinition<any>> = SchemaDef extends SchemaDefinition<infer Schema> ? {
[TableName in keyof Schema & string]: Schema[TableName] extends TableDefinition<infer Document, infer FieldPaths, infer TableIndexes> ? {
document: Expand<IdField<TableName> & Document>;
fieldPaths: keyof IdField<TableName> | FieldPaths;
indexes: Expand<TableIndexes & SystemIndexes>;
} : never;
} : never;
/**
* Internal type used in Convex code generation!
*
* Convert a {@link SchemaDefinition} into an object type that maps table names
* to their document types.
*
* This is similar to {@link server.GenericDataModel} but it doesn't contain
* index information. This is nice for making some types appear simpler in
* VSCode.
*
* @public
*/
export declare type DocumentMapFromSchemaDefinition<SchemaDef extends SchemaDefinition<any>> = SchemaDef extends SchemaDefinition<infer Schema> ? {
[TableName in keyof Schema & string]: Schema[TableName] extends TableDefinition<infer Document, any, any> ? Expand<IdField<TableName> & Document> : never;
} : never;
export {};
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