Getting started: net.box - simplify the app for using it in the interactive session

Author: andreyaksenov

doc/code_snippets/snippets/connectors/instances.enabled/net_box/README.md

@@ -0,0 +1,16 @@
+# net.box
+
+A sample application containing `net.box` requests from the [Getting started with net.box](https://www.tarantool.io/en/doc/latest/how-to/getting_started_net_box/) tutorial.
+
+
+## Running
+
+Before running this sample, start an application that allows remote connections to a sample database: [sample_db](../instances.enabled/sample_db).
+
+Then, start the interactive session by executing the following command in the [connectors](..) directory:
+
+```console
+$ tt run -i net_box/myapp.lua
+```
+
+In the console, you can use the `conn` object to execute requests for manipulating the data.

doc/code_snippets/snippets/connectors/instances.enabled/net_box/config.yaml

@@ -1,23 +1,24 @@
-function net_box_session()
-    net_box = require('net.box')
-    --[[
-    ---
-    ...
-    ]]
+net_box = require('net.box')
+--[[
+---
+...
+]]
 
-    conn = net_box.connect('sampleuser:[email protected]:3301')
-    --[[
-    ---
-    ...
-    ]]
+conn = net_box.connect('sampleuser:[email protected]:3301')
+--[[
+---
+...
+]]
 
-    conn:ping()
-    --[[
-    ---
-    - true
-    ...
-    ]]
+conn:ping()
+--[[
+---
+- true
+...
+]]
 
+function net_box_data_operations()
+    -- Start net.box session
     conn.space.bands:insert({ 1, 'Roxette', 1986 })
     conn.space.bands:insert({ 2, 'Scorpions', 1965 })
     conn.space.bands:insert({ 3, 'Ace of Base', 1987 })
@@ -72,10 +73,14 @@ function net_box_session()
     -- ---
     -- - [[2, 'Pink Floyd', 1965], [4, 'The Beatles', 1960]]
     -- ...
+    -- End net.box session
+end
 
+function net_box_close_connection()
     conn:close()
     --[[
     ---
     ...
     ]]
+    -- Close net.box connection
 end

doc/code_snippets/snippets/connectors/instances.enabled/net_box/instances.yml

@@ -66,26 +66,26 @@ Creating a net.box connection
 
 To load the ``net.box`` module, use the ``require()`` directive:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: net_box = require
     :end-before: net_box.connect
     :dedent:
 
 To create a connection, pass a database URI to the ``connect()`` method:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: net_box.connect
     :end-before: conn:ping
     :dedent:
 
 ``ping()`` can be used to check the connection status:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn:ping
-    :end-before: Roxette
+    :end-before: net_box_data_operations
     :dedent:
 
 
@@ -108,9 +108,9 @@ Inserting data
 
 In the example below, four tuples are inserted into the ``bands`` space:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
-    :start-at: Roxette
+    :start-after: Start net.box session
     :end-before: conn.space.bands:select
     :dedent:
 
@@ -123,15 +123,15 @@ Querying data
 
 The example below shows how to get a tuple by the specified primary key value:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn.space.bands:select
     :end-before: conn.space.bands.index.band:select
     :dedent:
 
 You can also get a tuple by the value of the specified index as follows:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn.space.bands.index.band:select
     :end-before: conn.space.bands:update
@@ -147,7 +147,7 @@ Updating data
 ``space_object.update`` updates a tuple identified by the primary key.
 This method accepts a full key and an operation to execute:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn.space.bands:update
     :end-before: conn.space.bands:upsert
@@ -156,7 +156,7 @@ This method accepts a full key and an operation to execute:
 ``space_object.upsert`` updates an existing tuple or inserts a new one.
 In the example below, a new tuple is inserted:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn.space.bands:upsert
     :end-before: conn.space.bands:replace
@@ -165,7 +165,7 @@ In the example below, a new tuple is inserted:
 
 In this example, ``space_object.replace`` is used to delete the existing tuple and insert a new one:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn.space.bands:replace
     :end-before: conn.space.bands:delete
@@ -181,7 +181,7 @@ Deleting data
 
 The ``space_object.delete`` call in the example below deletes a tuple whose primary key value is ``5``:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn.space.bands:delete
     :end-before: conn:call
@@ -196,10 +196,10 @@ Executing stored procedures
 
 To execute a stored procedure, use the ``connection:call()`` method:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn:call
-    :end-before: conn:close()
+    :end-before: End net.box session
     :dedent:
 
 
@@ -210,10 +210,10 @@ Closing the connection
 
 The ``connection:close()`` method can be used to close the connection when it is no longer needed:
 
-..  literalinclude:: /code_snippets/snippets/connectors/instances.enabled/net_box/myapp.lua
+..  literalinclude:: /code_snippets/snippets/connectors/net_box/myapp.lua
     :language: lua
     :start-at: conn:close()
-    :end-before: end
+    :end-before: Close net.box connection
     :dedent:
 
 ..  NOTE::