Echo Input

A minimal Apify Actor that logs the input and returns it unchanged.

This Actor is useful for:

• Testing Actor inputs
• Debugging integrations
• Verifying webhooks
• Learning how Apify Actors work

How to run

cmd.exe

echo {"input":"hi"} | apify call danng/empty -so --input-file -

C:\Users\danng>echo {"input":"hi"} | apify call danng/empty -so --input-file -
[{
  "input": "hi"
}]

PowerShell

'{ "input": "hi" }' | apify call danng/empty -so --input-file -

PS C:\Users\danng> '{ "input": "hi" }' | apify call danng/empty -so --input-file -
[{
  "input": "hi"
}]

To get the JSON

cmd

echo {"input":"hi"} | apify call danng/empty -so -i - | jq -c ".[0]"

C:\Users\danielng01>echo {"input":"hi"} | apify call danng/empty -so -i - | jq -c ".[0]"
{"input":"hi"}

PowerShell

(('{ "input": "hi" }' | apify call danng/empty -so -i - | ConvertFrom-Json)[0] | ConvertTo-Json -Compress)
{"input":"hi"}

PS C:\Users\danielng01> (('{ "input": "hi" }' | apify call danng/empty -so -i - | ConvertFrom-Json)[0] | ConvertTo-Json -Compress)
{"input":"hi"}

Input

Accepts any valid string.

Example:

{
  "input": "hi"
}

Output

Returns exactly the same JSON object.

Example:

{
  "input": "hi"
}

Build time

Build time is improved to 0.8sec

2026-08-05T12:55:02.286Z ACTOR: Selected directory: .
2026-08-05T12:55:02.289Z ACTOR: Extracting Actor documentation from README.md
2026-08-05T12:55:02.291Z ACTOR: Found input schema at default location .actor/INPUT_SCHEMA.json
2026-08-05T12:55:02.722Z ACTOR: Building container image (cache enabled).
2026-08-05T12:55:02.963Z #1 [internal] load build definition from Dockerfile
2026-08-05T12:55:02.965Z #1 transferring dockerfile: 1.29kB done
2026-08-05T12:55:02.967Z #1 DONE 0.0s
2026-08-05T12:55:02.969Z #2 [auth] apify/actor-python:pull token for registry-1.docker.io
2026-08-05T12:55:02.971Z #2 DONE 0.0s
2026-08-05T12:55:02.973Z #3 [internal] load metadata for docker.io/apify/actor-python:3.14
2026-08-05T12:55:02.975Z #3 DONE 0.1s
2026-08-05T12:55:03.063Z #4 [internal] load .dockerignore
2026-08-05T12:55:03.066Z #4 transferring context: 2.98kB done
2026-08-05T12:55:03.068Z #4 DONE 0.0s
2026-08-05T12:55:03.070Z #5 [1/4] FROM docker.io/apify/actor-python:3.14@sha256:...
2026-08-05T12:55:03.071Z #5 resolve docker.io/apify/actor-python:3.14@sha256:... 0.0s done
2026-08-05T12:55:03.073Z #5 DONE 0.0s
2026-08-05T12:55:03.075Z #6 importing cache manifest from s3:8888392737511599217
2026-08-05T12:55:03.077Z #6 DONE 0.0s
2026-08-05T12:55:03.079Z #7 [internal] load build context
2026-08-05T12:55:03.081Z #7 transferring context: 9.93kB done
2026-08-05T12:55:03.082Z #7 DONE 0.0s
2026-08-05T12:55:03.084Z #8 [2/4] COPY --chown=myuser:myuser requirements.txt ./
2026-08-05T12:55:03.086Z #8 CACHED
2026-08-05T12:55:03.087Z #9 [3/4] RUN echo "Python version:"  && python --version  && echo "Pip version:"  && pip --version  && echo "Installing dependencies:"  && pip install -r requirements.txt
2026-08-05T12:55:03.089Z #9 CACHED
2026-08-05T12:55:03.216Z #9 [3/4] RUN echo "Python version:"  && python --version  && echo "Pip version:"  && pip --version  && echo "Installing dependencies:"  && pip install -r requirements.txt
2026-08-05T12:55:03.225Z #9 sha256:... 4.19MB / 18.28MB 0.2s
2026-08-05T12:55:03.378Z #9 sha256:... 13.63MB / 18.28MB 0.3s
2026-08-05T12:55:03.487Z #9 sha256:... 18.28MB / 18.28MB 0.4s done
2026-08-05T12:55:03.490Z #9 extracting sha256:..
2026-08-05T12:55:04.023Z #9 extracting sha256:.. 0.5s done
2026-08-05T12:55:04.025Z #9 DONE 1.0s
2026-08-05T12:55:04.176Z #10 [4/4] COPY --chown=myuser:myuser . ./
2026-08-05T12:55:04.284Z #10 DONE 0.3s
2026-08-05T12:55:04.384Z ACTOR: Pushing container image to repository.
2026-08-05T12:55:04.386Z #11 exporting to image
2026-08-05T12:55:04.388Z #11 exporting layers 0.1s done
2026-08-05T12:55:04.390Z #11 exporting manifest sha256:... 0.0s done
2026-08-05T12:55:04.392Z #11 exporting config sha256:...
2026-08-05T12:55:04.528Z #11 ...
2026-08-05T12:55:04.530Z #12 [auth] sharing credentials for 031263542130.dkr.ecr.us-east-1.amazonaws.com
2026-08-05T12:55:04.532Z #12 DONE 0.0s
2026-08-05T12:55:04.534Z #11 exporting to image
2026-08-05T12:55:04.536Z #11 exporting config sha256:... 0.0s done
2026-08-05T12:55:04.537Z #11 pushing layers
2026-08-05T12:55:04.711Z #11 ...
2026-08-05T12:55:04.713Z #13 exporting cache to Amazon S3
2026-08-05T12:55:04.715Z #13 preparing build cache for export 0.0s done
2026-08-05T12:55:04.717Z #13 sending cache export 0.1s done
2026-08-05T12:55:04.718Z #13 writing layer sha256:bc0a806...4....66985af730f6c0 0.0s done
2026-08-05T12:55:04.720Z #13 DONE 0.2s
2026-08-05T12:55:04.800Z #11 exporting to image
2026-08-05T12:55:04.802Z #11 pushing layers 0.4s done
2026-08-05T12:55:05.052Z #11 DONE 0.8s
2026-08-05T12:55:05.157Z ACTOR: Build finished.

2026-08-05T13:04:04.176Z ACTOR: Pulling container image of build ... from registry.
2026-08-05T13:04:05.720Z ACTOR: Creating container.
2026-08-05T13:04:05.968Z ACTOR: Starting container.
2026-08-05T13:04:05.969Z ACTOR: Running under "LIMITED_PERMISSIONS".
2026-08-05T13:04:07.480Z Actor is running on the Apify platform, `disable_browser_sandbox` was changed to True.
2026-08-05T13:04:07.482Z [apify] INFO  Initializing Actor ({"apify_sdk_version": "3.4.1", "apify_client_version": "2.5.1", "crawlee_version": "1.9.0", "python_version": "3.14.5", "os": "linux", "is_running_in_ipython": false})
2026-08-05T13:04:07.845Z [apify] INFO  Received input: {'input': 'hi'}
2026-08-05T13:04:07.917Z [apify] INFO  Done.
2026-08-05T13:04:07.918Z [apify] INFO  Exiting Actor ({"exit_code": 0})