csantanapr commented on a change in pull request #3202: Support action
continuations in the controller
URL:
https://github.com/apache/incubator-openwhisk/pull/3202#discussion_r163045464
##########
File path: docs/compositions.md
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@@ -0,0 +1,144 @@
+# Action compositions
+
+Action compositions make it possible to dynamically build and invoke a series
of actions. Action compositions are similar to sequences. However, whereas the
components of a sequence must be specified before invoking the sequence,
components of a composition can be decided as the composition is running.
+
+## Example
+
+Suppose we define an _increment_ action:
+
+```
+$ cat > increment.js
+function main({ value }) { return { value: value + 1 } }
+^D
Review comment:
separate command from code, make code in it's own block with the language
annotation to highlight and easy to copy paste out.
Also I think removing the `cat` command is better, I'm not sure if there is
a `cat` in windows.
Example:
Suppose we define an _increment_ action in a source file `increment.js`:
```javascript
function main({ value }) { return { value: value + 1 } }
```
Create the action _increment_:
```
wsk action create increment increment.js
```
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