The minimum OCR server by Golang, and a tiny sample application of gosseract.
if already in docker host
docker run --rm -p 8080:8080 otiai10/ocrserveror if you can use docker-compose
docker-compose upotherwise, you need to install tesseract-ocr on your machine
sudo apt-get install -y libleptonica-dev libtesseract-dev tesseract-ocr
go get github.com/otiai10/ocrserver
$GOPATH/bin/ocrserverGET / for sample client, so access http://localhost:9900/
POST /file
curl -XPOST "http://localhost:9900/file" \
-F "file=@sample.png" \
-H "Content-Type: multipart/form-data"
{
"result": "2,464 total",
"version": "0.0.1",
}POST /base64
% curl -XPOST "http://localhost:9900/base64" \
-d '{
"base64": "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",
"trim":"\n"
}'
{
"result": "OCR",
"version": "0.0.1",
}GET /status
% curl -XGET "http://localhost:9900/status"
{"message":"Hello!","version":"0.0.1"}