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README.md

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+# select data from an external source with Ori and close over it
+Say we have a file somewhere else with all our clients:
+
+```yaml
+#clients.yaml
+client1:
+  name: James Jamm
+  email: james@jamfactory.com
+client2:
+  name: Sammy Sauk
+  email: sam@sockfactory.com
+```
+
+We want to maintain our client database in one place, and get client data for each of their websites without exposing other clients' data.
+
+We can do this with function in an ori expression file. The function takes a clientid, and returns just that client. Origami's syntax supports passing an argument to a data file as if it were a function.
+
+```
+//clientdata.ori
+(clientid) => /path/to/clients.yaml(clientid)
+```
+
+To get just James Jamm's data: `ori 'clientdata.ori("client1")'`
+
+
+
+

clientdata.ori

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+(clientid) => clients.yaml(clientid)
+

clients.yaml

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+#clients.yaml
+client1:
+  name: James Jamm
+  email: james@jamfactory.com
+client2:
+  name: Sammy Sauk
+  email: sam@sockfactory.com
+