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handler.js
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handler.js
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'use strict';
const AWS = require('aws-sdk'); // eslint-disable-line import/no-extraneous-dependencies
const s3 = new AWS.S3();
const dynamoDb = new AWS.DynamoDB.DocumentClient();
module.exports.extractMetadata = (event, context, callback) => {
console.log("extractMetadata()");
var imagem = {};
var imagens = [];
event.Records.forEach(element => {
var imagem = {};
imagem.bucket = element.s3.bucket.name;
imagem.key = element.s3.object.key;
imagem.size = element.s3.object.size;
imagem.s3objectkey = element.s3.object.eTag;
dynamoDb.put(
{
TableName: process.env.DYNAMODB_TABLE,
Item:imagem
},
function(err, data) {
if (err) {
console.log("Error", err);
} else {
console.log("Success", data);
}
});
});
};
module.exports.getMetadata = (event, context, callback) => {
console.log("/images/{s3objectkey}");
dynamoDb.get({
TableName: process.env.DYNAMODB_TABLE,
Key:{
"s3objectkey": event.pathParameters.s3objectkey
}
}
,
function(err, data) {
console.log(data);
console.log(process.env.DYNAMODB_TABLE);
if (err) {
callback(err);
} else {
callback(null, {
"statusCode": 200,
"headers": {
"Content-Type": "application/json"
},
"body": JSON.stringify({message:"successo!" , data:data.Item || {}})
});
}
});
};
module.exports.GetImage = (event, context, callback) => {
console.log("GetImage/{s3objectkey}");
dynamoDb.get({
TableName: process.env.DYNAMODB_TABLE,
Key:{
"s3objectkey": event.pathParameters.s3objectkey
}
}
,
function(err, data) {
console.log(data);
console.log(process.env.DYNAMODB_TABLE);
if (err) {
callback(err);
} else {
s3.getObject({Bucket: data.bucket, Key:data.key},
function (err, arquivo){
if (err) {
callback(err);
} else if(arquivo){
callback(null, {
"statusCode": 200,
"headers": {
"Content-Type": "image/png"
},
"body": arquivo.Body.toString('base64')
});
}
}
);
}
});
}