A simple microservice for creating image thumbnails.

Dependencies

• Go
• Unix sockets

Client requirements

• Unix sockets
• Protocol Buffers support

Interfacing how-to

1. Compile the Protocol Buffers in thumq.proto for your language of choice.

2. Connect to the unix socket.

3. Send a two-part message: a Request (see thumq.proto) and an image. Each message part is prefixed with a 32-bit little-endian size field.

4. Receive a two or three part message. The first part is a Response (see thumq.proto) and the second is a scaled/cropped/stripped JPEG image (or empty on error). If the convert option was set in the Request, there is a third part which is a JPEG conversion of the image in its original size (or empty on error).