B4X

SendGrid -- Send Email with Attachment

See more SendGrid Examples

Sends an email with an attachment. B4X

Dim success As Boolean = False

'  This example assumes the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim http As ChilkatHttp
http.Initialize("http")

'  Implements the following CURL command:

'  curl --request POST \
'    --url https://api.sendgrid.com/v3/mail/send \
'    --header 'authorization: Bearer YOUR_API_KEY' \
'    --header 'Content-Type: application/json' \
'    --data '{"personalizations": [{"to": [{"email": "recipient@example.com"}]}],"from": {"email": "sender@example.com"},"subject":"Hello, World!","content": [{"type": "text/html","value": "Hey,<br>Please find attachment."}], "attachments": [{"content": "BASE64_ENCODED_CONTENT", "type": "text/plain", "filename": "attachment.txt"}]}'

'  Use the following online tool to generate HTTP code from a CURL command
'  Convert a cURL Command to HTTP Source Code

'  Use this online tool to generate code from sample JSON:
'  Generate Code to Create JSON

'  The following JSON is sent in the request body.

'  {
'    "personalizations": [
'      {
'        "to": [
'          {
'            "email": "recipient@example.com"
'          }
'        ]
'      }
'    ],
'    "from": {
'      "email": "sender@example.com"
'    },
'    "subject": "Hello, World!",
'    "content": [
'      {
'        "type": "text/html",
'        "value": "Hey,<br>Please find attachment."
'      }
'    ],
'    "attachments": [
'      {
'        "content": "BASE64_ENCODED_CONTENT",
'        "type": "text/plain",
'        "filename": "attachment.txt"
'      }
'    ]
'  }

Dim json As ChilkatJsonObject
json.Initialize
json.UpdateString("personalizations[0].to[0].email", "recipient@example.com")
json.UpdateString("from.email", "sender@example.com")
json.UpdateString("subject", "Hello, World!")
json.UpdateString("content[0].type", "text/html")
json.UpdateString("content[0].value", "Hey,<br>Please find attachment.")

'  Load a file to be attached.
Dim bd As ChilkatBinData
bd.Initialize
success = bd.LoadFile("qa_data/pdf/hello.pdf")

json.UpdateString("attachments[0].content", bd.GetEncoded("base64"))
json.UpdateString("attachments[0].type", "application/pdf")
json.UpdateString("attachments[0].filename", "hello.pdf")

'  Adds the "Authorization: Bearer YOUR_API_KEY" header.
http.AuthToken = "YOUR_API_KEY"

Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpJson("POST", "https://api.sendgrid.com/v3/mail/send", json, "application/json", resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Dim respStatusCode As Int = resp.StatusCode
Log("Response Status Code = " & respStatusCode)
If respStatusCode <> 202 Then
    Log("Response Header:")
    Log(resp.Header)
    Log("Response Body:")
    Log(resp.BodyStr)
    Log("Failed.")
    Return
End If

Log("Success.")