Step 1. Create a New Template

Transactions contain much information, but you might not need all the fields. Creating a template allows you to filter and receive only the necessary information.

Request Payload

Replace YOUR_ACCESS_TOKEN with your API key for authentication. Learn how to get your API key here.

curl -X POST "https://svc.Blockdaemon.com/streaming/v1/templates" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -d ' {
        "description": "Basic block email",
        "name": "Basic block email",
        "template": "<h1 style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-size: 40px;line-height: 44px;font-weight: 400;font-family: sans-serif;color: #5025B8;margin-bottom: 36px;\">     Theres a new: {{ .bd_metadata.schema }}  </h1>  <p style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-family: sans-serif;font-weight: 400;color: #211B4E;font-size: 16px;line-height: 24px;margin-bottom: 20px;\"> \tParent Block:{{ .parentBlock }}  </p>  <p style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-family: sans-serif;font-weight: 400;color: #211B4E;font-size: 16px;line-height: 24px;margin-bottom: 20px;\"> \tBlock Hash: {{ .blockHash }}  </p>  <p style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-family: sans-serif;font-weight: 400;color: #211B4E;font-size: 16px;line-height: 24px;margin-bottom: 20px;\"> \tAt block Height: {{ .height }}  </p> " 
    }

The request includes the following parameters:

Fields		Details
`name`	Required	The template name. Each resource should have a unique name.
`description`	Optional	The template description.
`template`	Required	The template content can contain a JSON format or HTML code with placeholders like `{{ .bd_metadata.schema }}` and `{{ .parent }}` that will be dynamically filled during processing.

Response Payload

A successful result will return a template in JSON format.

{
    "created_at": "2024-02-05T13:53:11.223232Z",
    "description": "block email",
    "id": "<TEMPLATE_ID>",
    "name": "block email",
    "template": "<h1 style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-size: 40px;line-height: 44px;font-weight: 400;font-family: sans-serif;color: #5025B8;margin-bottom: 36px;\">     Theres a new: {{ .bd_metadata.schema }}  </h1>  <p style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-family: sans-serif;font-weight: 400;color: #211B4E;font-size: 16px;line-height: 24px;margin-bottom: 20px;\"> \tParent Block:{{ .parentBlock }}  </p>  <p style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-family: sans-serif;font-weight: 400;color: #211B4E;font-size: 16px;line-height: 24px;margin-bottom: 20px;\"> \tBlock Hash: {{ .blockHash }}  </p>  <p style=\"margin: 0 0 10px 0;mso-line-height-rule: exactly;font-family: sans-serif;font-weight: 400;color: #211B4E;font-size: 16px;line-height: 24px;margin-bottom: 20px;\"> \tAt block Height: {{ .height }}  </p> ",
    "updated_at": "2024-02-05T13:53:11.223232Z"
}

Step 2. Update a Rule with a Template

Update the rule by applying the template. Replace TEMPLATE_ID with the ID of the template you've just created.

curl -X PUT "https://svc.Blockdaemon.com/streaming/v1/rules/YOUR_RULE_ID" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "condition": [
        {
            "variable_id": "<VARIABLE_ID>",
            "variable_type": "source-address"
        },
        {
            "variable_id": "<VARIABLE_ID>",
            "variable_type": "destination-address"
        }
    ],
    "condition_type": "match_var",
    "created_at": "2024-02-05T13:29:23.2179Z",
    "description": "Ethereum mainnet demo",
    "id": "<RULE_ID>",
    "isActive": true,
    "name": "Ethereum mainnet demo",
    "network": "mainnet",
    "protocol": "ethereum",
    "target": "<TARGET_ID>",
    "template": "<TEMPLATE_ID>"
}