Unexpected behavior on multiple parallel update requests

[383bd03d]

I tested multiple async request to api endpoint for update existing document with different fields. (One request updates one field)
If entry created with empty fields, in mongodb document this fields doesnt exists, that allows successfully update all empty fields with multiple parallel api requests, but if field have value and after its deletion fields keep in mongodb with empty value { "field": "" }
This kind of fields dont updates with multiple parallel request, only one random field could updated

Example request:

const f = (body) => fetch("http://localhost:4000/api/test/6372638638bead8eb92b0018", {
method: "PATCH",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify(body)
});
Promise.all([
f({ qwe: "rterte" }),
f({ wer: "ert" }),
f({ ert: "fdgd" }),
f({ rty: "ok" }),
f({ asd: "fhfh" }),
f({ sdf: "rt" }),
f({ zxc: "dfg" }),
f({ xyz: "sdf" }),
f({ vbn: "odfdfgk" }),
f({ foo: "dfgdgd" }),
]).then((r) => r.map(async(i) => console.log(await i.json())))

[jmikrut]

Hey @383bd03d — I see what you're going for here but I also understand why this does not work. Right now the full existing document is merged into the incoming data within each update operation. Meaning——your parallel requests are overlapping one another and could be writing as another saves.

However, you could access the raw Mongoose model for your collection by payload.collections[collectionSlug].Model and open up a custom endpoint that takes a property to set, and value to set, in order to update only specific properties in parallel.

Outside of that, this would need to be a new feature that Payload provides. Could be possible at some point so I'm going to convert this to a discussion and tag it as a feature request! How's that?

[383bd03d]

Thanks, its works as I wanted!

Code:

endpoints: [
{
path: "/:id/put",
method: "post",
handler: async (req, res) => {
const { payload, body, params } = req;

    const { Model } = payload.collections["test"];
    const update = await Model.findOneAndUpdate({ _id: params.id }, body, { new: true });

    res.send(JSON.stringify(update));
  }
}

],

[383bd03d]

Could it be out of the box?

[383bd03d]

It works like this in payload api only if field doesnt exist in mongodb yet, when document created with empty field, it allows update in parallel requests