Docker for Serverless Applications

Action invoke

OK, now we are ready to try out both newly created C and Go functions built in the previous sections. First, we will create an action using the wsk action create command starting with the C program:

$ wsk -i action create --docker chanwit/whisk_c whisk_cok: created action whisk_c

If things go correctly, wsk will tell us ok: created action. Next, we will invoke the action using the wsk action invoke command. The invoke command accepts one or more --param to pass parameters to the action. We can also pass --result to obtain the result synchronously. The result is, of course returned as JSON:

$ wsk -i action invoke --param key value --result whisk_c{    "args": {        "key": "value"    },    "msg": "Hello from C program!"}

We will try once more, ...