IPFS File Datasource warning messages

Inizia riproducendo il flusso di CID ripetuto descritto intorno a IpfsMetadataTemplate.create(cid) e all’handler handleIpfsContent. Esamina come la creazione ripetuta di datasource di file IPFS produca l’avviso relativo al runtime host, quindi verifica se l’avviso è innocuo e se è possibile evitare la creazione ripetuta senza modificare il comportamento delle relazioni tra entità.

Hi,

I have deployed a subgraph in Subgraph studio.

I'm testing a IPFS File Datasource to gather off-chain metadata info into a chain based handler.

The entity of the off-chain data is defined as:

type IpfsMetadata @entity {
  id: Bytes!
  metaData: String!
}

The event driven entity is linked this way

type AssetTransfer @entity {
  id: Bytes!
  tokenId: BigInt!
  cid: String!
  metaData: IpfsMetadata 
}

In mappings file, the following event handler set the relationship:

export function handleAssetTransfer(event: AssetTransferEvent): void {

  let entity = new AsssetTransfer(idBytes);

  const cid = event.params.cid;

  entity.metaData = Bytes.fromUTF8(cid);

  IpfsMetadataTemplate.create(cid);

               .....

}

I have the following content handler:

export function handleIpfsContent(content: Bytes): void {

  let cid = dataSource.stringParam();
  let ipfs = new IpfsMetadata(Bytes.fromUTF8(cid));
  ipfs.metaData = content.toString();
  ipfs.save();
}

Currently, cid are always the same for every indexed event (it's a normal use case), so the following warning is shown through the dashboard after the first IpfsMetadata entity is created:

"no runtime host created, there is already a runtime host instantiated for this data source, address: xxxxxxx, name: IpfsMetadata, runner_index: 1246"

When I query the index to check the AssetTransfer entities, all of them are successfully linked to the unique IpfsMetadata entity, so everything seems to work fine.

However, I don't like the warning log at every new indexed event when cid parameter is repeated.

As entities associated with File Data Sources cannot be accessed by chain-based handlers, there is no way to check whether the IpfsMetada entity does exist to prevent creating a new file datasource template.

Shoud I be aware of the logged message?
Is there any other thing I can do to prevent the warning log?

Best regards