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@shelf/aws-lambda-libreoffice
Advanced tools
Utility to work with Docker version of LibreOffice in Lambda
Utility to work with Docker version of LibreOffice in Lambda
$ yarn add @shelf/aws-lambda-libreoffice
First, you need to create a Docker image for your Lambda function. See the example at libreoffice-lambda-base-image repo.
Example:
FROM public.ecr.aws/shelf/lambda-libreoffice-base:7.6-node18-x86_64
COPY ./ ${LAMBDA_TASK_ROOT}/
RUN yarn install
CMD [ "handler.handler" ]
ephemeral-storage
parameterHOME
to /tmp
Given you have packaged your Lambda function as a Docker image, you can now use this package:
const {convertTo, canBeConvertedToPDF} = require('@shelf/aws-lambda-libreoffice');
module.exports.handler = async () => {
// assuming there is a document.docx file inside /tmp dir
// original file will be deleted afterwards
// it is optional to invoke this function, you can skip it if you're sure about file format
if (!canBeConvertedToPDF('document.docx')) {
return false;
}
return convertTo('document.docx', 'pdf'); // returns /tmp/document.pdf
};
This version requires Node 12.x or higher.
NOTE: Since version 2.0.0 npm package no longer ships the 85 MB LibreOffice but relies upon libreoffice-lambda-layer instead. Follow the instructions on how to add a lambda layer in that repo.
const {convertTo, canBeConvertedToPDF} = require('@shelf/aws-lambda-libreoffice');
module.exports.handler = async () => {
// assuming there is a document.docx file inside /tmp dir
// original file will be deleted afterwards
if (!canBeConvertedToPDF('document.docx')) {
return false;
}
return convertTo('document.docx', 'pdf'); // returns /tmp/document.pdf
};
Or if you want more control:
const {unpack, defaultArgs} = require('@shelf/aws-lambda-libreoffice');
await unpack(); // default path /tmp/instdir/program/soffice.bin
execSync(
`/tmp/instdir/program/soffice.bin ${defaultArgs.join(
' '
)} --convert-to pdf file.docx --outdir /tmp`
);
Beside unit tests that could be run via yarn test
, there are integration tests.
Smoke test that it works:
cd test
./test.sh
# copy converted PDF file from container to the host to see if it's ok
export CID=$(cat ./cid)
docker cp $CID:/tmp/test.pdf ./test.pdf
$ git checkout master
$ yarn version
$ yarn publish
$ git push origin master --tags
MIT © Shelf
FAQs
Utility to work with Docker version of LibreOffice in Lambda
We found that @shelf/aws-lambda-libreoffice demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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