Developers Forum for XinFin XDC Network

Discussion on: Archive RPC

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s4njk4n profile image
s4njk4n

Are you encountering it by using a webpage/html file on your local machine? I’m thinking back and from memory I THINK I got around it by just hosting the page remotely on GitHub Pages for free (so it would have a valid domain as its origin).

The epoch rewards calculator page I linked in my other reply I think may have been the page that had it but now queries RPCs fine.. also I’ve just been using the Ankr RPC and not getting any missing Trie errors , and have managed to query quite far back so I figured it was an archive node but I think u may be right. Could’ve been pruned at some point if can’t get block 1?

the earpc RPC address mentioned by someone else is def an archive node.

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scarzerolab profile image
Trahwidhi Author

hey, i have deployed the app with Vercel with this endpoint: earpc.xinfin.network/

but i still have and encounter the same CORS error

(index):1 Access to fetch at 'https://earpc.xinfin.network/' from origin 'http://localhost:5173' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
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is there someway to contact the RPC to open it's CORS for us or ways to register for it to happend

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s4njk4n profile image
s4njk4n

To clarify.. if ur using a html page on ur local machine then it doesn’t have a domain so the origin will show as null and it will get rejected. But if hosted remotely, it shows as the domain instead of null.

Another option is to just run an archive node urself locally. Just set up a mainnet node as normal. Start the node. Stop the node. Delete any initial chain data. Set gcmode=archive then restart the node and let it sync from genesis (or download the latest archive chain snapshot and sync from wherever that gets the node up to.

Good luck

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scarzerolab profile image
Trahwidhi Author

yes, i am working on XDC archive node. maybe i should try hosting it on vercel because yes i am using localhost to access it. also i'm gonna try the new earpc RPC

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s4njk4n profile image
s4njk4n

The issue will likely be localhost as the origin

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scarzerolab profile image
Trahwidhi Author

is there possible way i can use archive RPC that's available with localhost?

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s4njk4n profile image
s4njk4n

Sure is. Just run an archive node locally and I think it should be available at localhost: