Cloud Function error: provider.lookups.forEach is not a function

Moralis General
#1

Hi,

Iā€™m trying to write a cloud function which will save the NFTs a user owns to the database when they login, but there seem to be an issue with the function itself. When I run the code locally everything works just fine, but as soon as I try to save the cloud function I got the following error:

2022-02-03T21:44:33.540Z - Cloud Function Error: provider.lookups.forEach is not a function
2022-02-03T21:44:33.539Z - Error initializing plugin  at index 0 provider.lookups.forEach is not a function TypeError: provider.lookups.forEach is not a function
    at /moralis-server/lib/cloud-code/plugins/helpers/chain.js:236:22
    at Array.reduce (<anonymous>)
    at makeProvidersByLookup (/moralis-server/lib/cloud-code/plugins/helpers/chain.js:235:20)
    at loadChainObjects (/moralis-server/lib/cloud-code/plugins/helpers/chain.js:215:40)
    at loadProviders (/moralis-server/lib/cloud-code/plugins/helpers/chain.js:202:3)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async /moralis-server/lib/cloud-code/plugins/index.js:147:11
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async /moralis-server/lib/cloud-code/plugins/index.js:134:5
    at async Object.initialize (/moralis-server/lib/cloud-code/plugins/index.js:133:3)

The code looks like:

Moralis.Cloud.define("updateUserNFTs", async (request) => {
    const allOwnedNFTs = request.params.allOwnedNFTs;
    const savedNFTs = request.params.savedNFTs;
    const user = request.user;
  
    const logger = Moralis.Cloud.getLogger();
    logger.info(allOwnedNFTs);
    logger.info(savedNFTs);

    allOwnedNFTs.forEach((NFT) => {
        const unique_id = NFT.token_address.concat(NFT.token_id);
        NFT.unique_id = unique_id;
    });

    savedNFTs.forEach((NFT) => {
        const unique_id = NFT.token_address.concat(NFT.token_id);
        NFT.unique_id = unique_id;
    });

    allOwnedNFTs.forEach((row) => {
        const foundUniqueID = savedNFTs.some(NFT => NFT.unique_id === row.unique_id);
        if (!foundUniqueID) {
            const NFTClass = Moralis.Object.extend("NFT");
            const NFTInstance = new NFTClass();

            NFTInstance.set(row);
            NFTInstance.set("parent", user);
            NFTInstance.save();
        };
    });

    savedNFTs.forEach((row) => {
        const foundUniqueID = allOwnedNFTs.some(NFT => NFT.unique_id === row.unique_id);
        if (!foundUniqueID) {
            const query = new Moralis.Query("NFT");
            query.equalTo("objectId", row.objectId);

            const object = await query.first();

            object.destroy();
        };
    });
});

It seems to be an issue with the forEach() function but strangely enough it does work for another cloud function that I use:

Moralis.Cloud.define("insertUserNFTs", async (request) => {
    const allOwnedNFTs = request.params.NFTs;
    const user = request.user;

    allOwnedNFTs.forEach((NFT) => {
        const NFTClass = Moralis.Object.extend("NFT");
        const NFTInstance = new NFTClass();
        NFTInstance.set(NFT);
        NFTInstance.set("parent", user);
        NFTInstance.save();
    })
});

Any idea what this could be? The server is brand new and up to date.

Thanks in advance!

#2

what is the server url where you get that error?

#3

https://8nlgpqlgs8vy.usemoralis.com:2053/server

1 Like
#4

that specific error should be fixed now on that server, it looks like there is also a syntax error somewhere in the cloud code

#5

Thanks for taking a look! Was this some error on the server? And if so, how can I prevent this when setting up a new one?

As for the syntax error, I was missing an async keyword in one of the forEach() calls.

Everything seems to work now, thanks again!

#6

it was an error related to the server, and that error should not happen again for a new created server

1 Like