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TiddlyWiki5/plugins/tiddlywiki/aws/templates/lambda/handler.tid
Jermolene d6a0b06f02 AWS plugin: Add support for a compressed payload
AWS imposes a limit of 16MB in my testing for the payload of a lambda. Compressing it enables us to pass x2-3 more data, thanks to the inefficiencies of JSON
2018-10-30 09:29:12 +00:00

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title: $:/plugins/tiddlywiki/aws/lambda/handler
type: text/plain
/*
TiddlyWiki for AWS
*/
exports.handler = function(event,context,callback) {
// Initialise the boot prefix
global.$tw = _bootprefix();
// Initialise the returned results
$tw["lambda-result"] = {
"files-written": []
};
// Some default package info
$tw.packageInfo = lambdaPackageInfo;
// Load any tiddlers from the package
$tw.preloadTiddlerArray(lambdaTiddlers);
// Decompress the event data if required
if(typeof event.compressed === "string") {
require("zlib").gunzip(Buffer.from(event.compressed,"base64"),function(err,buff) {
if(err) {
return callback(err);
}
boot(JSON.parse(buff.toString()));
});
} else {
boot(event);
}
function boot(event) {
// Load any tiddlers from the event
if(event.tiddlers) {
$tw.preloadTiddlerArray(event.tiddlers);
}
// Load the commands from the event
$tw.boot.argv = (event.commands || []).slice(0);
// Boot the TW5 app
_boot($tw);
$tw.boot.boot(function() {
callback(null,$tw["lambda-result"]);
});
}
}