Graph API
Graph API Version

Graph API Reference /{conversation-id}/messages

The messages in a conversation between a person and a page.

Reading

Graph API Explorer
GET /v3.1/{conversation-id}/messages HTTP/1.1
Host: graph.facebook.com
/* PHP SDK v5.0.0 */
/* make the API call */
try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $fb->get(
    '/{conversation-id}/messages',
    '{access-token}'
  );
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  echo 'Graph returned an error: ' . $e->getMessage();
  exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}
$graphNode = $response->getGraphNode();
/* handle the result */
/* make the API call */
FB.api(
    "/{conversation-id}/messages",
    function (response) {
      if (response && !response.error) {
        /* handle the result */
      }
    }
);
/* make the API call */
new GraphRequest(
    AccessToken.getCurrentAccessToken(),
    "/{conversation-id}/messages",
    null,
    HttpMethod.GET,
    new GraphRequest.Callback() {
        public void onCompleted(GraphResponse response) {
            /* handle the result */
        }
    }
).executeAsync();
// For more complex open graph stories, use `FBSDKShareAPI`
// with `FBSDKShareOpenGraphContent`
/* make the API call */
FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc]
                               initWithGraphPath:@"/{conversation-id}/messages"
                                      parameters:params
                                      HTTPMethod:@"GET"];
[request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection,
                                      id result,
                                      NSError *error) {
    // Handle the result
}];

Permissions

  • A page access token with read_page_mailboxes permission is required to view any messages in a conversation that Page is involved in.
  • A user access token with read_mailbox permission can be used to view any messages in a conversation that person is involved in. The person must be a developer of the app making the request with this token.

Fields

Returns an array of Message objects with additional fields:

Name Description Type

Vector

Vector

Publishing

POST /v3.1/{conversation-id}/messages HTTP/1.1
Host: graph.facebook.com

message=This+is+a+test+message
/* PHP SDK v5.0.0 */
/* make the API call */
try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $fb->post(
    '/{conversation-id}/messages',
    array (
      'message' => 'This is a test message',
    ),
    '{access-token}'
  );
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  echo 'Graph returned an error: ' . $e->getMessage();
  exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}
$graphNode = $response->getGraphNode();
/* handle the result */
/* make the API call */
FB.api(
    "/{conversation-id}/messages",
    "POST",
    {
        "message": "This is a test message"
    },
    function (response) {
      if (response && !response.error) {
        /* handle the result */
      }
    }
);
Bundle params = new Bundle();
params.putString("message", "This is a test message");
/* make the API call */
new GraphRequest(
    AccessToken.getCurrentAccessToken(),
    "/{conversation-id}/messages",
    params,
    HttpMethod.POST,
    new GraphRequest.Callback() {
        public void onCompleted(GraphResponse response) {
            /* handle the result */
        }
    }
).executeAsync();
// For more complex open graph stories, use `FBSDKShareAPI`
// with `FBSDKShareOpenGraphContent`
NSDictionary *params = @{
  @"message": @"This is a test message",
};
/* make the API call */
FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc]
                               initWithGraphPath:@"/{conversation-id}/messages"
                                      parameters:params
                                      HTTPMethod:@"POST"];
[request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection,
                                      id result,
                                      NSError *error) {
    // Handle the result
}];

Permissions

Pages can only reply to a message. They cannot initiate a conversation.

  • A page access token for the page is required to publish a message.

Fields

Parameter Description Type

message

The text of reply. This field is required.

string

Response

Name Description Type

id

The ID of the newly created message.

string

A page admin can privately reply to a user who has commented on a post on the page however a system message will be returned by the Graph API.

GET /v3.1/{conversation-id}/messages?message=You+are+responding+to+Sam+Smith%27s+post%3A+%22Hello+Post%22&id=%7Bconversation-id%7D HTTP/1.1
Host: graph.facebook.com
/* PHP SDK v5.0.0 */
/* make the API call */
try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $fb->get(
    '/{conversation-id}/messages',
    '{access-token}'
  );
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  echo 'Graph returned an error: ' . $e->getMessage();
  exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}
$graphNode = $response->getGraphNode();
/* handle the result */
/* make the API call */
FB.api(
    "/{conversation-id}/messages",
    {
        "message": "You are responding to Sam Smith's post: \"Hello Post\"",
        "id": "{conversation-id}"
    },
    function (response) {
      if (response && !response.error) {
        /* handle the result */
      }
    }
);
Bundle params = new Bundle();
params.putString("message", "You are responding to Sam Smith's post: \"Hello Post\"");
params.putString("id", "{conversation-id}");
/* make the API call */
new GraphRequest(
    AccessToken.getCurrentAccessToken(),
    "/{conversation-id}/messages",
    params,
    HttpMethod.GET,
    new GraphRequest.Callback() {
        public void onCompleted(GraphResponse response) {
            /* handle the result */
        }
    }
).executeAsync();
// For more complex open graph stories, use `FBSDKShareAPI`
// with `FBSDKShareOpenGraphContent`
NSDictionary *params = @{
  @"message": @"You are responding to Sam Smith's post: \"Hello Post\"",
  @"id": @"{conversation-id}",
};
/* make the API call */
FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc]
                               initWithGraphPath:@"/{conversation-id}/messages"
                                      parameters:params
                                      HTTPMethod:@"GET"];
[request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection,
                                      id result,
                                      NSError *error) {
    // Handle the result
}];

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