Debug Functions locally

We may run the functions on their own or all emulators.

npm run serve
firebase emulators:start --only functions
firebase emulators:start --import=./saved --export-on-exit

we opt-in to use the emulated cloud functions:

connectFunctionsEmulator(functions, "localhost", 5001)

The command starts the emulator and connects a CLI REPL shell session to it so that we may trigger the functions from the CLI:

firebase functions:shell
npm run shell # alternative

call a Callable function from the CLI: we add the request's payload to the mandatory data property.

requestArticles({ data: { name: "Lena" } })

The URL follows a specific pattern

http://localhost:5001/imgtale/europe-west1/request_articles

curl -s -H "Content-Type: application/json" \
  -d '{ "data": { } }' \
  http://localhost:5001/imgtale/europe-west1/request_articles

Debug Functions locally

run the emulator

We may run the functions on their own or all emulators.

npm run serve firebase emulators:start --only functions firebase emulators:start --import=./saved --export-on-exit

connect the client to the emulator

we opt-in to use the emulated cloud functions:

connectFunctionsEmulator(functions, "localhost", 5001)

connect a shell to the emulator

The command starts the emulator and connects a CLI REPL shell session to it so that we may trigger the functions from the CLI:

firebase functions:shell npm run shell # alternative

call a Callable function from the CLI: we add the request's payload to the mandatory data property.

requestArticles({ data: { name: "Lena" } })

make direct HTTP requests to the emulated functions

The URL follows a specific pattern

http://localhost:5001/imgtale/europe-west1/request_articles

curl -s -H "Content-Type: application/json" \ -d '{ "data": { } }' \ http://localhost:5001/imgtale/europe-west1/request_articles