public static async Task Run([PerperStreamTrigger] PerperStreamContext context,
[Perper("ipfsGateway")] string ipfsGateway,
[PerperStream("dataStream")] IAsyncEnumerable <object> dataStream,
[PerperStream("outputStream")] IAsyncCollector <IHashed <object> > outputStream,
ILogger logger)
{
var ipfs = new IpfsClient(ipfsGateway);
await dataStream.ForEachAsync(async item =>
{
try
{
var jToken = IpfsJsonSettings.JTokenFromObject(item);
var cid = await ipfs.Dag.PutAsync(jToken, cancel: CancellationToken.None);
var hash = new Hash {
Bytes = cid.ToArray()
};
logger.LogDebug("Saved {json} as {hash} in ipfs", jToken.ToString(Formatting.None), hash);
await outputStream.AddAsync(Hashed.Create(item, hash));
}
catch (Exception e)
{
logger.LogError(e.ToString());
}
}, CancellationToken.None);
}
public static async Task Run([PerperStreamTrigger] PerperStreamContext context,
[Perper("ipfsGateway")] string ipfsGateway,
[PerperStream("hashStream")] IAsyncEnumerable <Hash> hashStream,
[PerperStream("outputStream")] IAsyncCollector <IHashed <object> > outputStream,
ILogger logger)
{
var ipfs = new IpfsClient(ipfsGateway);
await hashStream.ForEachAsync(async hash =>
{
try
{
// NOTE: Currently blocks other items on the stream and does not process them
// -- we should at least timeout
var jToken = await ipfs.Dag.GetAsync(Cid.Read(hash.Bytes), CancellationToken.None);
var item = jToken.ToObject <object>(JsonSerializer.Create(IpfsJsonSettings.DefaultSettings));
await outputStream.AddAsync(Hashed.Create(item, hash));
}
catch (Exception e)
{
logger.LogError(e.ToString());
}
}, CancellationToken.None);
}