createFileMessageByURL

Feature Introduction

Description

When you need to store resources yourself, you can upload the file via the API, obtain the download address, and then send the file message to the other party.

Note

The message created through this API must be sent using the sendMessageNotOss method.

iOS

Function Prototype

 Future<Message> createFileMessageByURL({
    required FileElem fileElem,
    String? operationID,
  })

Input Parameters

Parameter Name	Parameter Type	Mandatory	Description
fileElem	FileElem	Yes	Absolute path

Return Result

Name	Type	Description
~	Message	Success return

Code Example

   Message msg = await OpenIM.iMManager.messageManager.createFileMessageByURL(fileElem: FileElem());
    //todo

Android

Function Prototype

+ (OIMMessageInfo *)createFileMessageByURL:(NSString *)fileURL
                                  fileName:(NSString * _Nullable)fileName
                                      size:(NSInteger)size;

Input Parameters

Parameter Name	Parameter Type	Mandatory	Description
fileURL	NSString	Yes	Absolute path
fileName	NSString	No	File name
size	NSInteger	Yes	File size

Return Result

Name	Type	Description
message	OIMMessageInfo	Success return

Code Example

OIMMessageInfo *message = [OIMMessageInfo createFileMessageByURL:@"" fileName:nil, size:1];

Flutter

Function Prototype

    public Message createFileMessageByURL(FileElem fileElem)

Input Parameters

Parameter Name	Parameter Type	Mandatory	Description
fileElem	FileElem	Yes	Absolute path

Return Result

Name	Type	Description
~	Message	Success return

Code Example

  Message Message= OpenIMClient.getInstance().messageManager.createFileMessageByURL( fileElem)

uni-app

Function Prototype

IMSDK.createFileMessage({
  filePath: string;
  fileName: string;
  uuid: string;
  sourceUrl: string;
  fileSize: number;
  fileType?: string;
}, operationID?: string): Promise<WsResponse<MessageItem>>

Input Parameters

Parameter Name	Parameter Type	Mandatory	Description
filePath	string	Yes	File path, use an empty string if needed
fileName	string	Yes	File name
uuid	string	Yes	Unique file ID
sourceUrl	string	Yes	Image download URL. After uploading the file yourself and getting the remote URL, you need to send via sendMessageNotOss
fileSize	number	Yes	File size
fileType	string	Yes	File type, typically the file extension

Return Result

Parameter Name	Parameter Type	Description
Promise.then()	Promise<WsResponse<MessageItem>>	Successful callback
Promise.catch()	Promise<WsResponse>	Failed callback

---

Code Example

import { getSDK } from '@openim/wasm-client-sdk';
const IMSDK = getSDK();

// use in electron with ffi
// import { getWithRenderProcess } from '@openim/electron-client-sdk/lib/render';
// const { instance: IMSDK } = getWithRenderProcess();

// use in mini program
// import { OpenIMSDK } from 'open-im-sdk';
// const IMSDK = new OpenIMSDK();

IMSDK.createFileMessage({
  filePath: '',
  fileName: 'fileName.mp4',
  uuid: 'uuid',
  sourceUrl: '',
  fileSize: 1024,
  fileType: 'mp4',
})
  .then(({ data }) => {
    // Successful invocation
  })
  .catch(({ errCode, errMsg }) => {
    // Invocation failed
  });

Browser/Electron/MiniProgram

Function Prototype

IMSDK.asyncApi('createFileMessageByURL', operationID: string, {
  filePath: string;
  fileName: string;
  uuid: string;
  sourceUrl: string;
  fileSize: number;
  fileType: string;
}): Promise<MessageItem>

Input Parameters

Parameter Name	Parameter Type	Mandatory	Description
operationID	string	Yes	Operation ID, for problem localization, must be unique. It's recommended to use the current time and a random number.
filePath	string	Yes	File path, just pass an empty string.
fileName	string	Yes	File name.
uuid	string	Yes	Unique file ID.
sourceUrl	string	Yes	Image download link. After uploading the file and getting the remote URL, you need to send it via sendMessageNotOss.
fileSize	string	Yes	File size.
fileType	string	Yes	File type, usually the extension.

Return Results

Using the openim-uniapp-polyfill package makes the function Promise-based. When invoking, you need to use then and catch to handle successful and failed callbacks.

Parameter Name	Parameter Type	Description
Promise.then()	Promise<MessageItem>	Successful callback
Promise.catch()	Promise<CatchResponse>	Failed callback

Code Example

import IMSDK from 'openim-uniapp-polyfill';

IMSDK.asyncApi('createFileMessageByURL', IMSDK.uuid(), {
  filePath: '',
  fileName: 'fileName.mp4',
  uuid: 'uuid',
  sourceUrl: 'https://sourceUrl.mp4',
  fileSize: 1024,
  fileType: 'mp4',
})
  .then((data) => {
    // Successful invocation
  })
  .catch(({ errCode, errMsg }) => {
    // Invocation failed
  });

React-Native

Function Prototype

OpenIMSDKRN.createFileMessageByURL( {
  filePath: string,
  fileName: string,
  uuid: string,
  sourceUrl: string,
  fileSize: number,
  fileType: string,
}, operationID: string): Promise<MessageItem>

Input Parameters

Parameter Name	Parameter Type	Mandatory	Description
filePath	string	Yes	File path, just pass an empty string.
fileName	string	Yes	File name
uuid	string	Yes	File unique ID
sourceUrl	string	Yes	Image download link. After uploading the file and getting the remote URL, you need to send it via sendMessageNotOss.
fileSize	string	Yes	File size
fileType	string	Yes	File type, usually the extension
operationID	string	Yes	Operation ID, used for problem location, keep unique, suggest using current time and random number

Return Result

Parameter Name	Parameter Type	Description
Promise.then()	Promise<MessageItem>	Callback on successful call
Promise.catch()	Promise<CatchResponse>	Callback on failed call

Code Example

import OpenIMSDKRN from "open-im-sdk-rn";

OpenIMSDKRN.createFileMessageByURL({
  filePath: '',
  fileName: 'fileName.mp4',
  uuid: 'uuid',
  sourceUrl: 'https://sourceUrl.mp4',
  fileSize: 1024,
  fileType: 'mp4',
}, 'operationID')
  .then((data) => {
    // Successful invocation
  })
  .catch(({ errCode, errMsg }) => {
    // Invocation failed
  });

Unity

Function Prototype

public static Message CreateFileMessageByURL(FileElem fileElem)

Input Parameter

Parameter Name	Parameter Type	Mandatory	Description
fileElem	FileElem	Yes	File Element

Return Result

Parameter Name	Type	Description
~	Message	Message Struct

Code Example

var msg = IMSDK.CreateFileMessageByURL(new FileElem(){

});