How to use query parameters in Nest.js?

Question

I am a freshman in Nest.js.

And my code as below

  @Get('findByFilter/:params')   async findByFilter(@Query() query): Promise<Article[]> {    } 

I have used postman to test this router

http://localhost:3000/article/findByFilter/bug?google=1&baidu=2

Actually, I can get the query result { google: '1', baidu: '2' }. But I'm not clear why the url has a string 'bug'?

If I delete that word just like

http://localhost:3000/article/findByFilter?google=1&baidu=2

then the postman will shows statusCode 404.

Actually, I don't need the word bug, how to custom the router to realize my destination just like http://localhost:3000/article/findByFilter?google=1&baidu=2

Here's another question is how to make mutiple router point to one method?

Answer 1

Query parameters

You have to remove :params for it to work as expected:

@Get('findByFilter') async findByFilter(@Query() query): Promise<Article[]> {   // ... } 

---

Path parameters

The :param syntax is for path parameters and matches any string on a path:

@Get('products/:id') getProduct(@Param('id') id) { 

matches the routes

localhost:3000/products/1 localhost:3000/products/2abc // ... 

---

Route wildcards

To match multiple endpoints to the same method you can use route wildcards:

@Get('other|te*st') 

will match

localhost:3000/other localhost:3000/test localhost:3000/te123st // ...