Pascal (Lazarus/Delphi)
Pascal (Lazarus/Delphi)
Get GMail Message format=full
See more GMail REST API Examples
Examines the JSON returned when getting a message using format=full.Chilkat Pascal (Lazarus/Delphi) Downloads
program ChilkatDemo;
// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}
uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
SysUtils,
CkDllLoader,
Chilkat.Http,
Chilkat.HttpResponse,
Chilkat.JsonObject;
// ---------------------------------------------------------------------------
procedure RunDemo;
var
success: Boolean;
http: THttp;
id: string;
resp: THttpResponse;
json: TJsonObject;
strVal: string;
name: string;
value: string;
partId: string;
mimeType: string;
filename: string;
bodySize: Integer;
bodyAttachmentId: string;
j: Integer;
count_j: Integer;
bodyData: string;
k: Integer;
count_k: Integer;
json1: TJsonObject;
i1: Integer;
count_i1: Integer;
id: string;
threadId: string;
snippet: string;
historyId: string;
internalDate: string;
payloadPartId: string;
payloadMimeType: string;
payloadFilename: string;
payloadBodySize: Integer;
sizeEstimate: Integer;
i: Integer;
count_i: Integer;
begin
success := False;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http := THttp.Create;
http.AuthToken := 'ACCESS_TOKEN';
http.Accept := 'application/json';
// This is the ID for a particular message in our mailbox...
id := '1712bc1dc22da2a2';
// Download the message using format=full
http.SetUrlVar('id',id);
resp := THttpResponse.Create;
success := http.HttpNoBody('GET','https://www.googleapis.com/gmail/v1/users/userId/messages/{$id}?format=full',resp);
if (success = False) then
begin
WriteLn(http.LastErrorText);
Exit;
end;
WriteLn('Response Status Code: ' + resp.StatusCode);
json := TJsonObject.Create;
json.Load(resp.BodyStr);
json.EmitCompact := False;
WriteLn(json.Emit());
if (resp.StatusCode <> 200) then
begin
WriteLn('Failed.');
Exit;
end;
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
// Here is a sample "format=full" response that contains 4 attachments:
// The JSON parsing source code is shown below...
// {
// "id": "1712bc1dc22da2a2",
// "threadId": "1712bc1dc22da2a2",
// "labelIds": [
// "UNREAD",
// "IMPORTANT",
// "CATEGORY_PERSONAL",
// "INBOX"
// ],
// "snippet": "Hello, this is a test email with attachments..",
// "historyId": "759379",
// "internalDate": "1585577056000",
// "payload": {
// "partId": "",
// "mimeType": "multipart/mixed",
// "filename": "",
// "headers": [
// {
// "name": "Delivered-To",
// "value": "chilkat.support@gmail.com"
// },
// {
// "name": "Received",
// "value": "..."
// },
// {
// "name": "X-Received",
// "value": "..."
// },
// {
// "name": "X-Google-Smtp-Source",
// "value": "..."
// },
// {
// "name": "X-Received",
// "value": "..."
// },
// {
// "name": "ARC-Seal",
// "value": "..."
// },
// {
// "name": "ARC-Message-Signature",
// "value": "..."
// },
// {
// "name": "ARC-Authentication-Results",
// "value": "..."
// },
// {
// "name": "Return-Path",
// "value": "..."
// },
// {
// "name": "Received",
// "value": "..."
// },
// {
// "name": "Received-SPF",
// "value": "..."
// },
// {
// "name": "Authentication-Results",
// "value": "..."
// },
// {
// "name": "DKIM-Signature",
// "value": "..."
// },
// {
// "name": "DKIM-Signature",
// "value": "..."
// },
// {
// "name": "Subject",
// "value": "Test email with attachments"
// },
// {
// "name": "From",
// "value": "..."
// },
// {
// "name": "To",
// "value": "..."
// },
// {
// "name": "Date",
// "value": "Mon, 30 Mar 2020 14:04:16 +0000"
// },
// {
// "name": "Mime-Version",
// "value": "1.0"
// },
// {
// "name": "Content-Type",
// "value": "multipart/mixed; boundary=\"=_wNvwW3YTnQBZ24pmfFNfay3S6M-pHT7KdZIkXwYF-BFiPYNE\""
// },
// {
// "name": "References",
// "value": "..."
// },
// {
// "name": "X-Mailer",
// "value": "..."
// },
// {
// "name": "Thread-Index",
// "value": "AQHWBpwYB0UZvgGPT1KluJJUCF0BGg=="
// },
// {
// "name": "Thread-Topic",
// "value": "Test email with attachments"
// },
// {
// "name": "Message-ID",
// "value": "..."
// },
// {
// "name": "X-SES-Outgoing",
// "value": "2020.03.30-54.240.27.106"
// },
// {
// "name": "Feedback-ID",
// "value": "..."
// }
// ],
// "body": {
// "size": 0
// },
// "parts": [
// {
// "partId": "0",
// "mimeType": "multipart/alternative",
// "filename": "",
// "headers": [
// {
// "name": "Content-Type",
// "value": "multipart/alternative; boundary=\"=_wNvwHW2hdOZkYPaJAhdOY4+XBEFNAcvIZ1sQcW4JkBcAdDqA\""
// }
// ],
// "body": {
// "size": 0
// },
// "parts": [
// {
// "partId": "0.0",
// "mimeType": "text/plain",
// "filename": "",
// "headers": [
// {
// "name": "Content-Type",
// "value": "text/plain; charset=UTF-8"
// },
// {
// "name": "Content-Transfer-Encoding",
// "value": "7bit"
// }
// ],
// "body": {
// "size": 129,
// "data": "SGVsbG8sIHRoaXMgaXMgYSB0ZXN0IGVtYWlsIHdpdGggYXR0YWNobWVudHMuLg0KIA0KIA0KIA0KLS0gDQogQmVzdCBSZWdhcmRzLA0KIE1hdHQgRmF1c2V5DQogQ2hpbGthdCBTb2Z0d2FyZSwgSW5jLiANCg0KIA0KDQogDQog"
// }
// },
// {
// "partId": "0.1",
// "mimeType": "multipart/related",
// "filename": "",
// "headers": [
// {
// "name": "Content-Type",
// "value": "multipart/related; boundary=\"=_wNvw-LQZP2xD5vBm4q4esgoD5F4j3w+DRPUkkzOidpnpXAre\""
// }
// ],
// "body": {
// "size": 0
// },
// "parts": [
// {
// "partId": "0.1.0",
// "mimeType": "text/html",
// "filename": "",
// "headers": [
// {
// "name": "Content-Type",
// "value": "text/html; charset=utf-8"
// },
// {
// "name": "Content-Transfer-Encoding",
// "value": "7bit"
// }
// ],
// "body": {
// "size": 530,
// "data": "PGh0bWw-DQogIDxoZWFkPg0KDQogICAgPG1ldGEgaHR0cC1lcXVpdj0iY29udGVudC10eXBlIiBjb250ZW50PSJ0ZXh0L2h0bWw7IGNoYXJzZXQ9VVRGLTgiPg0KICA8L2hlYWQ-DQogIDxib2R5Pg0KICAgIEhlbGxvLCB0aGlzIGlzIGE8Zm9udCBjb2xvcj0iI2ZmMDAwMCI-IHRlc3Q8L2ZvbnQ-IGVtYWlsIHdpdGgNCiAgICBhdHRhY2htZW50cy4uPGJyPg0KICAgIDxicj4NCiAgICA8aW1nIG1vei1kby1ub3Qtc2VuZD0iZmFsc2UiDQogICAgICBzcmM9ImNpZDpwYXJ0MS5GMEI1MzVEQi5DQjZFN0ExMkBjaGlsa2F0c29mdC5jb20iIGFsdD0ic2VhaG9yc2UiDQogICAgICB3aWR0aD0iMTIwIiBoZWlnaHQ9IjEyMCI-PGJyPg0KICAgIDxkaXYgY2xhc3M9Im1vei1zaWduYXR1cmUiPi0tIDxicj4NCiAgICAgIEJlc3QgUmVnYXJkcyw8YnI-DQogICAgICBNYXR0IEZhdXNleTxicj4NCiAgICAgIENoaWxrYXQgU29mdHdhcmUsIEluYy4NCiAgICAgIDxwPg0KICAgICAgPC9wPg0KICAgIDwvZGl2Pg0KICA8L2JvZHk-DQo8L2h0bWw-DQo="
// }
// },
// {
// "partId": "0.1.1",
// "mimeType": "image/jpeg",
// "filename": "seahorse.jpg",
// "headers": [
// {
// "name": "Content-Type",
// "value": "image/jpeg"
// },
// {
// "name": "Content-Id",
// "value": "\u003cpart1.F0B535DB.CB6E7A12@chilkatsoft.com\u003e"
// },
// {
// "name": "Content-Disposition",
// "value": "inline; filename=seahorse.jpg"
// },
// {
// "name": "Content-Transfer-Encoding",
// "value": "base64"
// }
// ],
// "body": {
// "attachmentId": "ANGjdJ-Z1c9gUGsEzexYYEsF5nLHGUaNiZQs5HkuFQVPo5jq1eze8poigmarvERUIRj1coKUaftiQPWhiZWaFyLDcyjFbfLdjWyyO3AxRO8pY5liAhVp1bt_5f79Nk0vfnZXL0OnZmNAMdrcFe645DbsajwDZcoYnWVcsV9Fe6PCNq41e6XW8Ko4Ex7zMzkATiwlLyx0RLcR0hl-FuZ-UVpQI0JeMTkNi4eN5-9L4dRU7HTo9qEyFW_p3__vXrnEJvmEvWXNUqxKLktcZvkvql6mnAVMDiIapqsE6x0EAvFobre7sf1_T6ieVlA-m92vrtELC2HHdxzkU-qhC_LuoOSOz8nd8tfWsrB8zex0v6NFFP9mJmBUb1QGtCGTxLdI40z_LdMOSiaqmeCq4o_s",
// "size": 24388
// }
// }
// ]
// }
// ]
// },
// {
// "partId": "1",
// "mimeType": "application/pdf",
// "filename": "helloWorld.pdf",
// "headers": [
// {
// "name": "Content-Type",
// "value": "application/pdf; name=helloWorld.pdf"
// },
// {
// "name": "Content-Transfer-Encoding",
// "value": "base64"
// },
// {
// "name": "Content-Disposition",
// "value": "attachment; filename=helloWorld.pdf"
// }
// ],
// "body": {
// "attachmentId": "ANGjdJ-oy3aCuZISJKLAhUdaEksCEklbAPyMaWzFgqOMGbPCRkgwgeu_Kttd99C17OBTHROkDZGekibTKWXGfscB5ww7fw4E65_V1dQ-jHhb2TD1Cdm58-BbNw2iDxzptco8iILPiSnLLfFn5Ps7nsRcxHaGTt3r0yqFKCuIYNnPK1vM04BXI_cfzo-HnI4I3tD6oHNHOGVQrL01MdShFQjPELPUjXM8z1qs7Kom-QyvV1iOldUN-66UuhynsmDX-CMM5TIdB-8KD_lmdhf-0DqG8JnCA20XpXyfqwS8XFkPA-t-QSjb7SdkHQFtQ4lz2PcBREFzZ2eI5j0l0Y_dQHRPYTeMwkVl1yl4MfFT4C4iso3VSF-eqaIjiFCbXKCFNyeEIW5WFsv189dhlSqU",
// "size": 934
// }
// },
// {
// "partId": "2",
// "mimeType": "application/x-gzip",
// "filename": "hamlet.xml.gz",
// "headers": [
// {
// "name": "Content-Type",
// "value": "application/x-gzip; name=hamlet.xml.gz"
// },
// {
// "name": "Content-Transfer-Encoding",
// "value": "base64"
// },
// {
// "name": "Content-Disposition",
// "value": "attachment; filename=hamlet.xml.gz"
// }
// ],
// "body": {
// "attachmentId": "ANGjdJ9rvj1ebIc-f0cXG0kwsb6pDBkRCNk3IQXbJ5z0-s2mEcVat3Pp6pVm3rTkRLOyeXHzRcTuel7nxRFJX6WVAKtG-5B-GL_b6DlsOWOzH4A_IKlyJ9U4aeWT02CgQL8oRwlCu1h0BtnY6lT8zureboGOqR7qoa-i5jH8xr6ds0nUDZp71lAwfOjji3eG6Wg6HfzWzWUThYPH3ba0_q35Jii8JIMhyJwwZnGjN3lvW_VhN6UIL1DIpop95b8rdwJdpyUavm7VhGtdNrI-mpgWQtT7WIAdIe6a-O74Zf4AB7uG7bp9R-IMBqQT-1jQqkN2_xlSpe3meWbuNu-4zsYfXN-IqM-Iy4dudAXjt0aY3Y8zxuHfW5qT7o4u8wSszhTIjM1j8lt-N7GZqnwJ",
// "size": 77409
// }
// },
// {
// "partId": "3",
// "mimeType": "text/plain",
// "filename": "brasil_cert.pem",
// "headers": [
// {
// "name": "Content-Type",
// "value": "text/plain; name=brasil_cert.pem"
// },
// {
// "name": "Content-Transfer-Encoding",
// "value": "base64"
// },
// {
// "name": "Content-Disposition",
// "value": "attachment; filename=brasil_cert.pem"
// }
// ],
// "body": {
// "attachmentId": "ANGjdJ8nGD_xRHvjDwNIaSUleWCWk15ksUleks0fJ29gfGVOebzjBOUnAHYgKPefUQ6d6ExtqYubpvGCka1kJAB4gFwsnhQeflBhFNkORBqtb6FAGq0FcNgrbuxyKywmoHOUV4GDsNs4OGroEcFhBeZNQ8XKEdEoaO8ht8DARn2LncjxioQ4TmZ6jawmMF-mLbW1mz4QjwNir5jLOsE11tYZV2tLDoqjsubKeJJA8xojWo9r50zWfJFgWJKXZJwyNvKyZTwLmmBL_ATFxLFp4Nvo4K37uuVdUCG8WXiWwNr0oIV1RZOd_ZOA7M6Jif0wUcppJdxXRqlsFJqGlcVsLowkVGrJNAMe-fLY1x4w5od3axZIdZQgBPlVRKYYu5xopPTrLJsn4ld7pNyAhpZW",
// "size": 2952
// }
// },
// {
// "partId": "4",
// "mimeType": "application/x-zip-compressed",
// "filename": "helloWorld.zip",
// "headers": [
// {
// "name": "Content-Type",
// "value": "application/x-zip-compressed; name=helloWorld.zip"
// },
// {
// "name": "Content-Transfer-Encoding",
// "value": "base64"
// },
// {
// "name": "Content-Disposition",
// "value": "attachment; filename=helloWorld.zip"
// }
// ],
// "body": {
// "attachmentId": "ANGjdJ9nWglkRNneBVGFk5GwSg83COa0zBeiTAvoMYniPklY03-w93dmEVHJTB9CAu5WMFW_yhV4ou2oX2w9SlpZjjyTgSc7sfYWeuX3pt29z67agy9WUVYeNGpo_30LSPgeyNk_Nm0DTAaektJTEMSy65rjRyK03VkHahNpMLY6Kd_pdfrk50oceuXzwNJZ-V-bftmIluueoQMqLcWQSGBRvEdIcl6EcPFFw8KuMLrjZZJwq8_bb8uM6zUvV23Q9LsLTgWg8FaBWejBf0wuIFXl3ZhtSLa-Y8OXCApHPdUnn45hccAzaQEmy4ZG7cgvCdN_jA9eFX46HYHty7ewleKPFGLTVof2JWsMiIi9BPqfohqQ5FPm1WXlGG_bOHvaMdoWcoqbKMMvF8lWZsfz",
// "size": 174
// }
// }
// ]
// },
// "sizeEstimate": 152847
// }
json1 := TJsonObject.Create;
id := json.StringOf('id');
threadId := json.StringOf('threadId');
snippet := json.StringOf('snippet');
historyId := json.StringOf('historyId');
internalDate := json.StringOf('internalDate');
payloadPartId := json.StringOf('payload.partId');
payloadMimeType := json.StringOf('payload.mimeType');
payloadFilename := json.StringOf('payload.filename');
payloadBodySize := json.IntOf('payload.body.size');
sizeEstimate := json.IntOf('sizeEstimate');
i := 0;
count_i := json.SizeOfArray('labelIds');
while i < count_i do
begin
json.I := i;
strVal := json.StringOf('labelIds[i]');
i := i + 1;
end;
i := 0;
count_i := json.SizeOfArray('payload.headers');
while i < count_i do
begin
json.I := i;
name := json.StringOf('payload.headers[i].name');
value := json.StringOf('payload.headers[i].value');
i := i + 1;
end;
i := 0;
count_i := json.SizeOfArray('payload.parts');
while i < count_i do
begin
json.I := i;
partId := json.StringOf('payload.parts[i].partId');
mimeType := json.StringOf('payload.parts[i].mimeType');
filename := json.StringOf('payload.parts[i].filename');
bodySize := json.IntOf('payload.parts[i].body.size');
bodyAttachmentId := json.StringOf('payload.parts[i].body.attachmentId');
j := 0;
count_j := json.SizeOfArray('payload.parts[i].headers');
while j < count_j do
begin
json.J := j;
name := json.StringOf('payload.parts[i].headers[j].name');
value := json.StringOf('payload.parts[i].headers[j].value');
j := j + 1;
end;
j := 0;
count_j := json.SizeOfArray('payload.parts[i].parts');
while j < count_j do
begin
json.J := j;
partId := json.StringOf('payload.parts[i].parts[j].partId');
mimeType := json.StringOf('payload.parts[i].parts[j].mimeType');
filename := json.StringOf('payload.parts[i].parts[j].filename');
bodySize := json.IntOf('payload.parts[i].parts[j].body.size');
bodyData := json.StringOf('payload.parts[i].parts[j].body.data');
k := 0;
count_k := json.SizeOfArray('payload.parts[i].parts[j].headers');
while k < count_k do
begin
json.K := k;
name := json.StringOf('payload.parts[i].parts[j].headers[k].name');
value := json.StringOf('payload.parts[i].parts[j].headers[k].value');
k := k + 1;
end;
k := 0;
count_k := json.SizeOfArray('payload.parts[i].parts[j].parts');
while k < count_k do
begin
json.K := k;
partId := json.StringOf('payload.parts[i].parts[j].parts[k].partId');
mimeType := json.StringOf('payload.parts[i].parts[j].parts[k].mimeType');
filename := json.StringOf('payload.parts[i].parts[j].parts[k].filename');
bodySize := json.IntOf('payload.parts[i].parts[j].parts[k].body.size');
bodyData := json.StringOf('payload.parts[i].parts[j].parts[k].body.data');
bodyAttachmentId := json.StringOf('payload.parts[i].parts[j].parts[k].body.attachmentId');
json.ObjectOf2('payload.parts[i].parts[j].parts[k]',json1);
i1 := 0;
count_i1 := json1.SizeOfArray('headers');
while i1 < count_i1 do
begin
json1.I := i1;
name := json1.StringOf('headers[i].name');
value := json1.StringOf('headers[i].value');
i1 := i1 + 1;
end;
k := k + 1;
end;
j := j + 1;
end;
i := i + 1;
end;
http.Free;
resp.Free;
json.Free;
json1.Free;
end;
// ---------------------------------------------------------------------------
begin
try
RunDemo;
except
on E: Exception do
WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
end;
WriteLn;
{$IFDEF MSWINDOWS}
WriteLn('Press Enter to exit...');
ReadLn;
{$ENDIF}
end.