Firebase emulator return empty data whereas working fine after deploying

firebase-tools: 8.1.1

Platform: Ubuntu

[REQUIRED] Test case

[REQUIRED] Steps to reproduce

I am not sure how I ran into this problem. I just followed the doc to run and debug the functions on emulator. After “firebase init”, I selected the firestore, functions and datastore emulators and all the dependencies were successfully installed. Later I started the emulator and it’s start the firestore, functions and datastore emulators on different port. Then I tried to execute my function and got no data in response.

export const activeServices = functions.https.onRequest((request, response) => {
    let services = new Array<string>();
    admin.firestore().collection(newServices).get()
    .then(serviceSnapshot => {
        serviceSnapshot.docs.forEach(doc => {
            if(doc.data().service_active){
                services.push(doc.data().service_name)
            }
        })
        const successResponse = common.success("success", 200, "Services retrieved", services)
        response.send(successResponse)
    })
    .catch(error => {
        const errorResponse = common.error("fail", 500, "Failed to get active services")
        console.error(errorResponse)
        response.send(errorResponse)
    })
})

I tried to execute this and it return nothing and executed the same functions after deploying. And I got the response. I think running only functions will try to communicate with production database. firebase emulators:start --only functions

functions: The Cloud Firestore emulator is not running, so calls to Firestore will affect production.
⚠  External network resource requested!
   - URL: "http://xxx.xxx.xxx.xxx/computeMetadata/v1/instance"
 - Be careful, this may be a production service.
⚠  External network resource requested!
   - URL: "http://metadata.google.internal./computeMetadata/v1/instance"
 - Be careful, this may be a production service.

This looks like it’s trying to communicate to production but couldn’t make any successful request.

[NandhaGopiFrost]

Even am facing the same issue

1. I have manually entered data using emulator UI, when I try to get the data back, exists is false always for me

My firestore emulator run on localhost:5000

db.collection("myfirstcollection").doc("dataexitsinthedocument").get() .then(snapShot=>{ if(snapShot.exists){ console.log(snapShot.data()) }else{ console.log("no data to fetch") } }) .catch(error=>{console.log(error);console.log(error)}) .finally(()=>{ console.log("exit on final") })

I have connected to my firestore using `if (window.location.hostname === “localhost”) {

db.useEmulator("localhost", 5000);

console.log("using emulator")

}`

[samtstern]

@Tzahile I don’t quite understand the situation you’re describing but here’s how it works:

• If you are running both the Cloud Functions emulator and the Realtime Database emulator then:
  • Writes to the RTDB emulator will trigger cloud functions in the functions emulator
  • Reads and writes from functions using firebase-admin will use data from the RTDB emulator
• If you are running only the Cloud Functions emulator
  • Your RTDB functions will never fire
  • Reads and writes from functions using firebase-admin will use data from production