带有“每个循环”把手的Mandrill API无法正常工作

Question

Met problem when using Mandrill API to send transactional newsletters. I chose Handlebars for the template parameters. The user name was shown correctly, but data in the list (post titles) were empty. Please help indicate if anything I did wrong. Thank you!

The template is as below, sent to the endpoint /messages/send.json :

func genHTMLTemplate() string {
    return "code generated template<br>" +
        "Hi {{name}}, <br>" + 
        "{{#each posts}}<div>" +
        "TITLE {{title}}, THIS {{this}}<br>" +
        "</div>{{/each}}"
}

The API log in my Settings panel in mandrillapp.com shows the parameters:

{
"key": "xxxxxxxxxx",
"message": {
        :
    "merge_language": "handlebars",
    "global_merge_vars": null,
    "merge_vars": [
        {
            "rcpt": "[e-mail]",
            "vars": [
                {
                    "name": "posts",
                    "content": [
                        {
                            "title": "title A"
                        },
                        {
                            "title": "title B"
                        },
                    ]
                },
                {
                    "name": "name",
                    "content": "John Doe"
                }
            ]
        }
    ],
      :
    },
    :
}

And below is the email received. "title A" and "title B" are expected after "TITLE".

code generated template
Hi John Doe,
TITLE, THIS Array
TITLE, THIS Array

Answer 1

After testing with Mandrill's sample code here I found the key "title" just doesn't work. Dunno the reason (a reserved keyword of Mandrill?) but replace it with "title1", "titleX" or something else it can be rendered correctly.

{
    "name": "posts",
    "content": [
        {
           "title": "blah blah"  // "title1" or something else works
        },
}