# FileChunkService > 文件片段相关服务 --- ## createFileChunk > 创建文件片段 - 角色:`admin` - HTTP:`POST https://backend.dooki.cloud/FileChunkService/createFileChunk` - RPC:`rpc createFileChunk (CreateFileChunkRequest) returns (CreateFileChunkResponse);` **请求对象 (`CreateFileChunkRequest`)** ```json { "fileId": "int64 // 文件ID", "data": "bytes" } ``` **响应对象 (`CreateFileChunkResponse`)** ```json { "fileChunkId": "int64" } ``` **调用示例** ```bash curl -X POST "https://backend.dooki.cloud/FileChunkService/createFileChunk" \ -H "Content-Type: application/json" \ -H "X-Edge-Access-Token: " \ -d '{ ... }' ``` --- ## downloadFileChunk > 下载文件片段 - 角色:`dns`, `user`, `node`, `admin` - HTTP:`POST https://backend.dooki.cloud/FileChunkService/downloadFileChunk` - RPC:`rpc downloadFileChunk (DownloadFileChunkRequest) returns (DownloadFileChunkResponse);` **请求对象 (`DownloadFileChunkRequest`)** ```json { "fileChunkId": "int64" } ``` **响应对象 (`DownloadFileChunkResponse`)** ```json { "fileChunk": "FileChunk" } ``` **调用示例** ```bash curl -X POST "https://backend.dooki.cloud/FileChunkService/downloadFileChunk" \ -H "Content-Type: application/json" \ -H "X-Edge-Access-Token: " \ -d '{ ... }' ``` --- ## findAllFileChunkIds > 获取的一个文件的所有片段IDs - 角色:`dns`, `user`, `node`, `admin` - HTTP:`POST https://backend.dooki.cloud/FileChunkService/findAllFileChunkIds` - RPC:`rpc findAllFileChunkIds (FindAllFileChunkIdsRequest) returns (FindAllFileChunkIdsResponse);` **请求对象 (`FindAllFileChunkIdsRequest`)** ```json { "fileId": "int64 // 文件ID" } ``` **响应对象 (`FindAllFileChunkIdsResponse`)** ```json { "fileChunkIds": "[]int64" } ``` **调用示例** ```bash curl -X POST "https://backend.dooki.cloud/FileChunkService/findAllFileChunkIds" \ -H "Content-Type: application/json" \ -H "X-Edge-Access-Token: " \ -d '{ ... }' ``` ---