Route Aliases (DRAFT)

Many route aliases can be configured in paths array. For example:

ConfigModule.withConfig({
    routing: {
        routes: {
            product: {
                paths: [
                    ':campaignName/product/:productCode',
                    'product/:productCode'
                ]
            }
        }
    }
})

Then a configurable router link will use the first configured path alias from the paths array that can satisfy its params with given params object. So it’s good to order aliases from those that require the most specific parametes to those having less parameters. For example:

When config is:

ConfigModule.withConfig({
    routing: {
        routes: {
            product: {
                paths: [
                    ':campaignName/p/:productCode', /* this will be used when `campaignName` param is given */
                    'p/:productCode' /* this will be used otherwise */
                ]
            }
        }
    }
})

1. when campaignName param is given:

    <a [routerLink]="{ cxRoute: 'product', params: { productCode: 1234, campaignName: 'sale' } } | cxUrl"></a>
   

   result

    <a [routerLink]="['/', 'sale', 'p', '1234']"></a>
   

2. when campaignName param is not given:

    <a [routerLink]="{ cxRoute: 'product', params: { productCode: 1234 } } | cxUrl"></a>
   

   result

    <a [routerLink]="['/', 'p', '1234']"></a>
   

Wrong order of aliases

When a path with less params (for example /p/:productCode) is put before a path that has the same params and more (for example :campaignName/p/:productCode), then the first path will always be used to generate the path (and the second will never be used). For example:

ConfigModule.withConfig({
    routing: {
        routes: {
            product: {
                paths: [
                    /* WRONG: */

                    /* will always be used */
                    'p/:productCode', 

                    /* will never be used, because (among others) contains the same params as above */
                    ':campaignName/p/:productCode'
                ]
            }
        }
    }
})

All following examples result in the same:

<a [routerLink]="['/', 'p', '1234']"></a>

1. when campaignName param is given:

    <a [routerLink]="{ cxRoute: 'product', params: { productCode: 1234, campaignName: 'sale' } } | cxUrl"></a>
   

2. when campaignName param is not given:

    <a [routerLink]="{ cxRoute: 'product', params: { productCode: 1234 } } | cxUrl"></a>