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# File Transfer
This example contains minimal HTTP client and server.
The client uploads a file to the server in a single POST, shaping traffic to send small data chunks.
The server manually processes requests in order to be able to write as soon as data arrives, to avoid buffering a whole (possibly huge) file not fitting in RAM.
Uploads are authenticated using Basic Auth. Both client and server have a default user/pass and can be configured using the command line. Only authenticated users can upload a file.
The server can also accept regular uploads from any HTTP client, for example curl:
```sh
curl -su user:pass http://localhost:8090/upload/foo.txt --data-binary @Makefile
```
- Follow the [Build Tools](../tools/) tutorial to setup your development environment.
- Start a terminal in this project directory; and build the example:
```sh
cd mongoose/examples/file-transfer
make clean all
```
- Manually start the server, either in background (to reuse the same terminal window) or in foreground; in which case you'll need another terminal to run the client. The server will listen at all interfaces in port 8090
```sh
./server
6332b7 2 server.c:157:main Mongoose version : v7.12
6332b7 2 server.c:158:main Listening on : http://0.0.0.0:8090
6332b7 2 server.c:159:main Web root : [/home/mongoose/examples/file-transfer/web_root]
6332b7 2 server.c:160:main Uploading to : [/home/mongoose/examples/file-transfer/upload]
```
- Manually run the client to send a file, default is to send it as "foo.txt" to the server in localhost at port 8090
```sh
./client -f Makefile
ok
```
Default operation is to assume hardcoded username and password. Call both server and client with no arguments to see usage instructions
See detailed tutorials at
https://mongoose.ws/tutorials/file-uploads/
https://mongoose.ws/tutorials/http-server/
https://mongoose.ws/tutorials/http-client/