Microservices with express gateway : routes return 404 error

Question

My microservice is running in port 3000 and I am trying to proxy the request via express-js gateway

But I got a problem with accessing routes in microservice

MICRO SERVICE ROUTE

app.use('/sample',(req,res)=>{
   res.json({
     message:'Run with microservice'
   })
})

And I am able to access this route http://localhost:3000/sample.

Here is my gateway.config.yml.

http:
  port: 3004
admin:
  port: 9876
  hostname: localhost
apiEndpoints:
  test:
    host: localhost
    paths: '/test'
serviceEndpoints:
  test:
    url: 'http://localhost:3002/'  
policies:
  - basic-auth
  - cors
  - expression
  - key-auth
  - log
  - oauth2
  - proxy
  - rate-limit
pipelines: 
  test:
    apiEndpoints:
      - test
    policies:
      - proxy:
          - action:
              serviceEndpoint: test
              changeOrigin: true

When I try to access my microservice route via http://localhost:3004/test/sample returns cannot get route error.

score 0 · Accepted Answer · answered Sep 10 '18 at 11:08

0

in general, make sure to review our Path Management Piece. This will help you understand what's the PATH that gets forwarded to your service.

Talking specifically about your question — if you want to forward a path that can "continue" beyond the specification, you need to change the path definition from /test to /test*. This instructs the gateway that the path is not complete and something else might be provided.

Also, on the service side, I'd change the app.use to app.get so you're listening only for the VERBS you're interested.

Cheers!

answered Sep 10 '18 at 11:08

Vincenzo

1,549
1
9
17

i've changed path to `paths: '/test*'` but still getting 404 error – shamon shamsudeen Sep 10 '18 at 11:13
The forwarded path to your service is indeed `/test/sample` — in case you want to make it just proxy to `/sample` you need to enable the `stripPath` option in the Proxy policy option. Check out the link I gave you above. – Vincenzo Sep 10 '18 at 11:16
where can i add the proxy policy argument?? – shamon shamsudeen Sep 10 '18 at 11:31
I suggest you to have a look to our proxy policy page so you can see where to put correctly all the options. – Vincenzo Sep 17 '18 at 10:40
@Vincenzo Do you have a handbook with examples that is microservices with nodejs? – Nuriddin Kudratov Oct 21 '19 at 18:39
I do not, unfortunately. – Vincenzo Oct 22 '19 at 14:59

score -2 · Answer 2 · answered Sep 10 '18 at 11:06

-2

I would go with Janus - https://hellofresh.gitbooks.io/janus/ for API Gateway Management as it specializes specifically on that. Have a look and let me know what you think.

answered Sep 10 '18 at 11:06

dadidaochieng

105
13

The question is about express-gateway i am asking a solution for my current problem not a replacement – shamon shamsudeen Sep 10 '18 at 11:08

Microservices with express gateway : routes return 404 error

2 Answers2