Service API docs fixes

website/API/service.md

@@ -5,11 +5,8 @@ Exposes a simple service registry API leveraged by various parts of SilverBullet
 ```space-lua
 service.define {
   selector = "greeter-service",
-  name = "generic-greeter",
-  match = function(name)
-    -- fallback option, priority undefined (so: low)
-    return {}
-  end,
+  -- no priority set
+  match = {},
   run = function(name)
     return "Hello " .. name
   end
@@ -17,7 +14,6 @@ service.define {
 
 service.define {
   selector = "greeter-service",
-  name = "pete-greeter",
   match = function(name)
     if name == "Pete" then
       -- takes precendence with an exact match
@@ -40,18 +36,18 @@ Defines a service matching a selector.
 
 Spec arguments:
 * `selector`: service selector, can contain wildcards (e.g. `hello:*`)
-* `name`: globally unique service name
-* `name` (gid for invocation)
-* `match(data)`: callback (`data` argument), returns a match table if this service is a match or `nil` otherwise. A match table is service specific, but at least contains a `priority` key to set the service priority (used for sorting by `service.discover` and `service.invokeBestMatch`).
+* `match(data)`: callback (`data` argument), returns a match table if this service is a match or `nil` otherwise. A match table is service specific, but at least contains a `priority` key to set the service priority (used for sorting by `service.discover` and `service.invokeBestMatch`). Instead of a function can also simply be a match object directly.
 * `run(data)`: callback to be invoked when the service is invoked
 
 ### service.discover(selector, data)
-Discovers previously defined service matching a given selector. Return value is a list of tables (can be empty) with keys:
-* `name`: name of the service
+Discovers previously defined service matching a given selector. 
+
+Return value is a list of tables (can be empty) with keys:
+* `id`: guid of the service (automatically generated)
 * `priority`: priority of service match (list will already be pre-sorted based on this key if present)
 
-### service.invoke(name, data)
-Invokes a service by name (as returned by [[#service.discover(selector, options)]]).
+### service.invoke(match, data)
+Invokes a service match (as returned by [[#service.discover(selector, options)]]).
 
 ### service.invokeBest(selector, options)
 Performs a `discover` based on the selector, then immediately performs and `invoke` on the best match (based on priority).