Delphi ActiveX Google Drive: List Comments on a File

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Lists the comment on a file. The file is specified by file ID. This example lists comments on the file having id = "0B5drHSd5ZHwgc3RhcnRlcl9maWxlX2Rhc2hlclYw".

Documentation: https://developers.google.com/drive/v3/reference/comments/list

var
rest: TChilkatRest;
success: Integer;
oauth2: TChilkatOAuth2;
sbJson: TChilkatStringBuilder;
json: TChilkatJsonObject;
i: Integer;
count_i: Integer;
kind: WideString;
id: WideString;
createdTime: WideString;
modifiedTime: WideString;
authorKind: WideString;
authorDisplayName: WideString;
authorPhotoLink: WideString;
authorMe: Integer;
htmlContent: WideString;
content: WideString;
deleted: Integer;
resolved: Integer;
j: Integer;
count_j: Integer;
action: WideString;

begin
rest := TChilkatRest.Create(Self);

//   Provide a previously obtained OAuth2 access token.
oauth2 := TChilkatOAuth2.Create(Self);
oauth2.AccessToken := 'OAUTH2_ACCESS_TOKEN';
rest.SetAuthOAuth2(oauth2.ControlInterface);

success := rest.Connect('www.googleapis.com',443,1,1);
if (success <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

rest.AddQueryParam('fields','comments');

sbJson := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestNoBodySb('GET','/drive/v3/files/0B5drHSd5ZHwgc3RhcnRlcl9maWxlX2Rhc2hlclYw/comments',sbJson.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

if (rest.ResponseStatusCode <> 200) then
  begin
    Memo1.Lines.Add('Received error response code: ' + IntToStr(rest.ResponseStatusCode));
    Memo1.Lines.Add('Response body:');
    Memo1.Lines.Add(sbJson.GetAsString());
    Exit;
  end;

json := TChilkatJsonObject.Create(Self);
json.LoadSb(sbJson.ControlInterface);

//  The following code parses the JSON response.
//  A sample JSON response is shown below the sample code.

i := 0;
count_i := json.SizeOfArray('comments');
while i < count_i do
  begin
    json.I := i;
    kind := json.StringOf('comments[i].kind');
    id := json.StringOf('comments[i].id');
    createdTime := json.StringOf('comments[i].createdTime');
    modifiedTime := json.StringOf('comments[i].modifiedTime');
    authorKind := json.StringOf('comments[i].author.kind');
    authorDisplayName := json.StringOf('comments[i].author.displayName');
    authorPhotoLink := json.StringOf('comments[i].author.photoLink');
    authorMe := json.BoolOf('comments[i].author.me');
    htmlContent := json.StringOf('comments[i].htmlContent');
    content := json.StringOf('comments[i].content');
    deleted := json.BoolOf('comments[i].deleted');
    resolved := json.BoolOf('comments[i].resolved');
    j := 0;
    count_j := json.SizeOfArray('comments[i].replies');
    while j < count_j do
      begin
        json.J := j;
        kind := json.StringOf('comments[i].replies[j].kind');
        id := json.StringOf('comments[i].replies[j].id');
        createdTime := json.StringOf('comments[i].replies[j].createdTime');
        modifiedTime := json.StringOf('comments[i].replies[j].modifiedTime');
        authorKind := json.StringOf('comments[i].replies[j].author.kind');
        authorDisplayName := json.StringOf('comments[i].replies[j].author.displayName');
        authorPhotoLink := json.StringOf('comments[i].replies[j].author.photoLink');
        authorMe := json.BoolOf('comments[i].replies[j].author.me');
        htmlContent := json.StringOf('comments[i].replies[j].htmlContent');
        content := json.StringOf('comments[i].replies[j].content');
        deleted := json.BoolOf('comments[i].replies[j].deleted');
        action := json.StringOf('comments[i].replies[j].action');
        j := j + 1;
      end;

    i := i + 1;
  end;

Memo1.Lines.Add('Example Completed.');

Sample JSON Response Body

{
  "comments": [
    {
      "kind": "drive#comment",
      "id": "AAAABg7vWfw",
      "createdTime": "2017-11-13T17:51:57.906Z",
      "modifiedTime": "2017-11-13T17:51:57.906Z",
      "author": {
        "kind": "drive#user",
        "displayName": "Matt Fausey",
        "photoLink": "//ssl.gstatic.com/s2/profiles/images/silhouette96.png",
        "me": true
      },
      "htmlContent": "This is the 2nd test comment about this file...",
      "content": "This is the 2nd test comment about this file...",
      "deleted": false,
      "resolved": false,
      "replies": [
      ]
    },
    {
      "kind": "drive#comment",
      "id": "AAAABg7tSGw",
      "createdTime": "2017-11-13T17:43:05.735Z",
      "modifiedTime": "2017-11-13T18:25:11.828Z",
      "author": {
        "kind": "drive#user",
        "displayName": "Matt Fausey",
        "photoLink": "//ssl.gstatic.com/s2/profiles/images/silhouette96.png",
        "me": true
      },
      "htmlContent": "This is a test comment about this file...",
      "content": "This is a test comment about this file...",
      "deleted": false,
      "resolved": true,
      "replies": [
        {
          "kind": "drive#reply",
          "id": "AAAABg76H9g",
          "createdTime": "2017-11-13T18:24:12.782Z",
          "modifiedTime": "2017-11-13T18:24:12.782Z",
          "author": {
            "kind": "drive#user",
            "displayName": "Matt Fausey",
            "photoLink": "//ssl.gstatic.com/s2/profiles/images/silhouette96.png",
            "me": true
          },
          "htmlContent": "This is the first reply to a comment.",
          "content": "This is the first reply to a comment.",
          "deleted": false,
          "action": "reopen"
        },
        {
          "kind": "drive#reply",
          "id": "AAAABg76H9k",
          "createdTime": "2017-11-13T18:24:45.085Z",
          "modifiedTime": "2017-11-13T18:24:45.085Z",
          "author": {
            "kind": "drive#user",
            "displayName": "Matt Fausey",
            "photoLink": "//ssl.gstatic.com/s2/profiles/images/silhouette96.png",
            "me": true
          },
          "htmlContent": "This is the second reply to a comment.",
          "content": "This is the second reply to a comment.",
          "deleted": false,
          "action": "resolve"
        },
        {
          "kind": "drive#reply",
          "id": "AAAABg76H9o",
          "createdTime": "2017-11-13T18:25:11.828Z",
          "modifiedTime": "2017-11-13T18:25:11.828Z",
          "author": {
            "kind": "drive#user",
            "displayName": "Matt Fausey",
            "photoLink": "//ssl.gstatic.com/s2/profiles/images/silhouette96.png",
            "me": true
          },
          "htmlContent": "This is the third reply to a comment.",
          "content": "This is the third reply to a comment.",
          "deleted": false,
          "action": "resolve"
        }
      ]
    }
  ]
}