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| import { ROUTE_ARGS_METADATA } from '../../constants';
import { RouteParamtypes } from '../../enums/route-paramtypes.enum';
import { PipeTransform } from '../../index';
import { Type } from '../../interfaces';
import { isNil, isString } from '../../utils/shared.utils';
export type ParamData = object | string | number;
export interface RouteParamsMetadata {
[prop: number]: {
index: number;
data?: ParamData;
};
}
const assignMetadata = (
args: RouteParamsMetadata,
paramtype: RouteParamtypes,
index: number,
data?: ParamData,
...pipes: (Type<PipeTransform> | PipeTransform)[]
) => ({
...args,
[`${paramtype}:${index}`]: {
index,
data,
pipes,
},
});
const createRouteParamDecorator = (paramtype: RouteParamtypes) => {
return (data?: ParamData): ParameterDecorator => (target, key, index) => {
const args =
Reflect.getMetadata(ROUTE_ARGS_METADATA, target.constructor, key) || {};
Reflect.defineMetadata(
ROUTE_ARGS_METADATA,
assignMetadata(args, paramtype, index, data),
target.constructor,
key,
);
};
};
const createPipesRouteParamDecorator = (paramtype: RouteParamtypes) => (
data?,
...pipes: (Type<PipeTransform> | PipeTransform)[]
): ParameterDecorator => (target, key, index) => {
const args =
Reflect.getMetadata(ROUTE_ARGS_METADATA, target.constructor, key) || {};
const hasParamData = isNil(data) || isString(data);
const paramData = hasParamData ? data : undefined;
const paramPipes = hasParamData ? pipes : [data, ...pipes];
Reflect.defineMetadata(
ROUTE_ARGS_METADATA,
assignMetadata(args, paramtype, index, paramData, ...paramPipes),
target.constructor,
key,
);
};
export const Request: () => ParameterDecorator = createRouteParamDecorator(
RouteParamtypes.REQUEST,
);
export const Response: () => ParameterDecorator = createRouteParamDecorator(
RouteParamtypes.RESPONSE,
);
export const Next: () => ParameterDecorator = createRouteParamDecorator(
RouteParamtypes.NEXT,
);
export const Session: () => ParameterDecorator = createRouteParamDecorator(
RouteParamtypes.SESSION,
);
export const UploadedFile: (
fileKey?: string,
) => ParameterDecorator = createRouteParamDecorator(RouteParamtypes.FILE);
export const UploadedFiles: () => ParameterDecorator = createRouteParamDecorator(
RouteParamtypes.FILES,
);
export const Headers: (
property?: string,
) => ParameterDecorator = createRouteParamDecorator(RouteParamtypes.HEADERS);
export function Query();
export function Query(...pipes: (Type<PipeTransform> | PipeTransform)[]);
export function Query(
property: string,
...pipes: (Type<PipeTransform> | PipeTransform)[]
);
export function Query(
property?: string | (Type<PipeTransform> | PipeTransform),
...pipes: (Type<PipeTransform> | PipeTransform)[]
) {
return createPipesRouteParamDecorator(RouteParamtypes.QUERY)(
property,
...pipes,
);
}
export function Body();
export function Body(...pipes: (Type<PipeTransform> | PipeTransform)[]);
export function Body(
property: string,
...pipes: (Type<PipeTransform> | PipeTransform)[]
);
export function Body(
property?: string | (Type<PipeTransform> | PipeTransform),
...pipes: (Type<PipeTransform> | PipeTransform)[]
) {
return createPipesRouteParamDecorator(RouteParamtypes.BODY)(
property,
...pipes,
);
}
export function Param();
export function Param(...pipes: (Type<PipeTransform> | PipeTransform)[]);
export function Param(
property: string,
...pipes: (Type<PipeTransform> | PipeTransform)[]
);
export function Param(
property?: string | (Type<PipeTransform> | PipeTransform),
...pipes: (Type<PipeTransform> | PipeTransform)[]
) {
return createPipesRouteParamDecorator(RouteParamtypes.PARAM)(
property,
...pipes,
);
}
export const Req = Request;
export const Res = Response;
|