upd(docs): include chart docs into readme

docs/crm/README.md

@@ -81,6 +81,191 @@ CRM module definitions
 
 ## Analyze data for chart
 
+
+
+
+# JSON for Charts
+
+When the API generates a JSON like this we can generate charts (with some JS on the front-end). The Groupby, Sum and Count fields in the form in the chart module in the CRM are there to format the values in the data array.
+
+## Example with no GroupBy, Sum or Count:
+
+Example chart: select Opportunity value for all opportunities between 1/1/2018 and 31/12/2018 and show them in a line chart.
+
+```
+{
+  "kind": "line",
+  "data": [
+    [
+      "Close date",
+      "2018-01-01",
+      "2018-01-02",
+      "2018-01-03",
+      "2018-01-04"
+    ],
+    [
+      "Opportunity value",
+      30,
+      200,
+      100,
+      400
+    ]
+  ],
+  "fields": {
+    "Close date": {
+      "kind": "datetime",
+      "min": "1/1/2018",
+      "max": "31/12/2018"
+    },
+    "Opportunity value": {
+      "name": "(Field name)",
+      "kind": "(Field kind)"
+    }
+  },
+  "meta": {
+    "name": "Line chart",
+    "description": "Description for the chart",
+    "kind": "line",
+    "module": 62511111111111110,
+    "x": 62522222222222220,
+    "xmin": "1/1/2018",
+    "xmax": "31/12/2018",
+    "y": 62533333333333336
+  }
+}
+```
+
+## Example with Count:
+
+Example pie chart: select opportunity.state count by opportunity.state.
+
+This will need to return:
+
+Open, 10 (where the 10 is a count)
+Won, 5
+Lost, 2
+
+```
+{
+  "kind": "pie",
+  "data": [
+    [
+      "Open",
+      10
+    ],
+    [
+      "Won",
+      5
+    ],
+    [
+      "Lost",
+      2
+    ]
+  ],
+  "fields": {
+    "state": {
+      "kind": "string"
+    }
+  },
+  "meta": {
+    "name": "Pie chart",
+    "description": "",
+    "kind": "pie",
+    "module": 62511111111111110,
+    "x": 62522222222222220,
+    "y": 62533333333333336,
+    "count": 62566666666666664
+  }
+}
+```
+
+## Example with Sum:
+
+Example donut chart: select opportunity.type sum by opportunity.value.
+
+This will need to return a sum of all the opportunies by type (very similar to count, but it sums instead of counts)
+
+```
+{
+  "kind": "donut",
+  "data": [
+    [
+      "Open",
+      120000
+    ],
+    [
+      "Won",
+      1000000
+    ],
+    [
+      "Lost",
+      30000
+    ]
+  ],
+  "fields": {
+    "type": {
+      "kind": "string"
+    }
+  },
+  "meta": {
+    "name": "Donut chart",
+    "description": "Description for the chart",
+    "kind": "donut",
+    "module": 62511111111111110,
+    "x": 62522222222222220,
+    "y": 62533333333333336,
+    "sum": 62555555555555550
+  }
+}
+```
+
+## Example with GroupBy and Count
+
+Example bar chart with number of leads per country: select lead.country from leads Count lead.id GroupBy lead.country
+
+```
+{
+  "kind": "bar",
+  "data": [
+    [
+      "France",
+      12
+    ],
+    [
+      "Slovenia",
+      10
+    ],
+    [
+      "Spain",
+      3
+    ],
+    [
+      "United Kingdom",
+      5
+    ],
+    [
+      "Germany",
+      20
+    ]
+  ],
+  "fields": {
+    "country": {
+      "kind": "string"
+    }
+  },
+  "meta": {
+    "name": "Bar chart",
+    "description": "",
+    "kind": "bar",
+    "module": 62511111111111110,
+    "x": 62522222222222220,
+    "y": 62533333333333336,
+    "groupby": 62544444444444450,
+    "count": 62566666666666664
+  }
+}
+```
+
 #### Method
 
 | URI | Protocol | Method | Authentication |