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Updated update api to update multiple documents in one request by passing array of object #2

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Updated update api to update multiple documents in one request by passing array of object #2

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76 changes: 56 additions & 20 deletions app.js
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Original file line number Diff line number Diff line change
Expand Up @@ -91,36 +91,72 @@ async function create(req, res) {

async function update(req, res) {
if (!req.body || req.body == {}) return res.status(400).json({ message: "Missing payload" });

let isObjectId = req.query.isObjectId ? true : false;

let filter = {
"_id": req.params.id
}
if (isObjectId) filter._id = new ObjectId(req.params.id);

let isReplace = req.query.replace ? true : false;
const options = {
upsert: req.query.upsert ? true : false
};
if(Array.isArray(req.body) && req.params.id) return res.status(400).json({err_request:"For single update pass id in url param with payload object and for multiple updates pass only payload object array with ids inside the payload"})

if(Array.isArray(req.body)){
let idMissing = [];
let updateData = [];
req.body.forEach(eachBody => {
if(!eachBody._id){
idMissing.push(eachBody);
return;
}
let id = eachBody._id;
let updates = eachBody;
delete updates._id;

if (isObjectId) id = new ObjectId(id);

if (isReplace) {
updateData.push( { replaceOne: {
filter: { _id: id},
replacement: { ...updates }
} });
}else{
updateData.push( { updateOne: {
filter: { _id: id},
update: { $set: updates }
} });
}
});

if(updateData.length == 0) return res.status(404).json({ message: "_id is mandatory for updating" });

let result = await this.collection.bulkWrite(updateData);
if (idMissing.length > 0) result.missing_id = idMissing;

res.status(200).json(result);

}else{

let doc = req.body;
let result = null;
if (doc._id) delete doc._id;
if (isReplace) {
result = await this.collection.findOneAndReplace(filter, doc, options);
} else {
doc = {
"$set": doc
let filter = {
"_id": req.params.id
}
result = await this.collection.findOneAndUpdate(filter, doc, options);
}
if (isObjectId) filter._id = new ObjectId(req.params.id);

let doc = req.body;
let result = null;
if (doc._id) delete doc._id;
if (isReplace) {
result = await this.collection.findOneAndReplace(filter, doc, options);
} else {
doc = {
"$set": doc
}
result = await this.collection.findOneAndUpdate(filter, doc, options);
}

if (result.matchedCount == 0) return res.status(404).json({ message: "Document not found" });
if (result.modifiedCount == 0) return res.status(304).json({ message: "Document not modified" });

res.status(200).json({ _id: req.params.id });
if (result.matchedCount == 0) return res.status(404).json({ message: "Document not found" });
if (result.modifiedCount == 0) return res.status(304).json({ message: "Document not modified" });

res.status(200).json({ _id: req.params.id });
}

}

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