Kotlin x SendGridでメール送信してみた

2017.10.23
#m3kt どこでもKotlin #3 秋のLT大会

Transcript

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15. FuelManager.instance.baseHeaders =
    mapOf("Content-Type" to "application/json", "Authorization" to "Bearer *****")
    "https://api.sendgrid.com/v3/mail/send".httpPost().body((content)).response { req, res, result ->
    when (result) {
    is Result.Failure -> {
    println("APIのコールに失敗")
    }
    is Result.Success -> {
    when (res.httpStatusCode) {
    202 -> println("メール送信成功")
    400, 401, 413 -> println("SendGridから400番台のエラーコードが返ってきた")
    else -> println("想定していないコードが返ってきた")
    }
    }
    }
    }
    

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16. FuelManager.instance.baseHeaders =
    mapOf("Content-Type" to "application/json", "Authorization" to "Bearer *****")
    "https://api.sendgrid.com/v3/mail/send".httpPost().body((content)).response { req, res, result ->
    when (result) {
    is Result.Failure -> {
    println("APIのコールに失敗")
    }
    is Result.Success -> {
    when (res.httpStatusCode) {
    202 -> println("メール送信成功")
    400, 401, 413 -> println("SendGridから400番台のエラーコードが返ってきた")
    else -> println("想定していないコードが返ってきた")
    }
    }
    }
    }
    val content = """
    {
    "personalizations": [
    {
    "to": [
    {
    "email": "$to"
    }
    ]
    }
    ],
    "from": {
    "email": "$from",
    "name": "$fromName"
    },
    "subject": "Kotlinからの送信テスト(HTTP)",
    "content": [
    {
    "type": "text/plain",
    "value": "Kotlinから送った"
    },
    {
    "type": "text/html",
    "value": "Kotlinから送った
    "
    }
    ]
    }
    """
    

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17. val from = Email("test@example.com")
    val subject = "Sending with SendGrid is Fun"
    val to = Email("test@example.com")
    val content = Content("text/plain", "and easy to do anywhere, even with Kotlin")
    val mail = Mail(from, subject, to, content)
    val sg = SendGrid("*****")
    val request = Request()
    try {
    request.method = Method.POST
    request.endpoint = "mail/send"
    request.body = mail.build()
    val response = sg.api(request)
    //略
    } catch (ex: IOException) {
    throw ex
    }
    

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