hello

hello 🙋‍♂️

Sequence that modifies incoming stream of strings by adding "Hello".

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Running

❗ Remember to setup transform-hub locally or use the platform's environment for the sequence deployment.

Open two terminals and run the following commands:

The first terminal:

# go to 'hello' directory
cd javascript/hello

# install dependencies
npm install

# go back to javascript/ directory
cd ../

# deploy 'hello' Sequence
si seq deploy hello

# see the Instance output
si inst output -    # nothing happens until some is sent to input

💡NOTE: Command deploy performs three actions at once: pack, send and start the Sequence. It is the same as if you would run those three commands separately:

si seq pack . -o hello.tar.gz    # compress 'hello/' directory into file named 'hello.tar.gz'

si seq send hello.tar.gz    # send compressed Sequence to STH, this will output Sequence ID

si seq start -    # start the Sequence, this will output Instance ID

The second terminal

# Send file to Instance input steam
si inst input - path/to/file/data.txt
# if file not given the data will be read from stdin
si inst input -
# hit enter and type "John"
John

Output

# Now you should see "Hello John" in output console
$ si inst output -
Hello John