Merge pull request #3422 from yannart/sendgrid-dynamic-template

Add dynamic template support to Twilio Sendgrid binding

daprdocs/content/en/reference/components-reference/supported-bindings/sendgrid.md

@@ -35,6 +35,10 @@ spec:
     value: "[email protected]" # optional
   - name: emailBcc
     value: "[email protected]" # optional
+  - name: dynamicTemplateId
+    value: "d-123456789" # optional
+  - name: dynamicTemplateData
+    value: '{"customer":{"name":"John Smith"}}' # optional
   - name: apiKey
     value: "YOUR_API_KEY" # required, this is your SendGrid key
 ```
@@ -55,7 +59,8 @@ The above example uses secrets as plain strings. It is recommended to use a secr
 | emailCc | N | Output | If set this specifies the 'cc' email address of the email message. Only a single email address is allowed. Optional field, see [below](#example-request-payload) | `"[email protected]"` |
 | emailBcc | N | Output | If set this specifies the 'bcc' email address of the email message. Only a single email address is allowed. Optional field, see [below](#example-request-payload) | `"[email protected]"` |
 | subject | N | Output | If set this specifies the subject of the email message. Optional field, see [below](#example-request-payload) | `"subject of the email"` |
-
+| dynamicTemplateId | N | Output | If set this specifies the dynamic template id. Optional field, see [below](#example-request-payload) | `"d-123456789"` |
+| dynamicTemplateData | N | Output | If set this specifies the dynamic template data. Optional field, see [below](#example-request-payload) | `'{"customer":{"name":"John Smith"}}'` |
 
 ## Binding support
 
@@ -78,6 +83,21 @@ You can specify any of the optional metadata properties on the output binding re
 }
 ```
 
+## Dynamic templates
+If a dynamic template is used, a `dynamicTemplateId` needs to be provided and then the `dynamicTemplateData` is used:
+
+```json
+{
+  "operation": "create",
+  "metadata": {
+    "emailTo": "[email protected]",
+    "subject": "An template email from Dapr SendGrid binding",
+    "dynamicTemplateId": "d-123456789",
+    "dynamicTemplateData": "{\"customer\":{\"name\":\"John Smith\"}}"
+  }
+}
+```
+
 ## Related links
 
 - [Basic schema for a Dapr component]({{< ref component-schema >}})