Batch Sign DataItem
Wander Injected API batchSignDataItem() function
The batchSignDataItem() function allows you to create and sign an array of data item objects, compatible with arbundles
. These data items can then be submitted to an ANS-104 compatible bundler.
Argument
Type
Description
dataItems
An array of data items to sign
Warning: This function is designed to sign multiple small data items. There is a limit of 200kb total for the function. Please ensure that the combined size of all data items does not exceed this limit.
Warning: The function returns an array of buffers of the signed data items. You'll need to manually load them into an arbundles
DataItem
instance as seen in the example usage.
Data item
This function requires valid data item objects, like so:
export interface DataItem[] {
data: string | Uint8Array;
target?: string;
anchor?: string;
tags?: {
name: string;
value: string;
}[];
}
Example usage
import { DataItem } from "@dha-team/arbundles";
// connect to the extension
await window.arweaveWallet.connect(["SIGN_TRANSACTION"]);
// sign the data item
const signed = await window.arweaveWallet.batchSignDataItem([
{
data: "This is an example transaction 1",
tags: [
{
name: "Content-Type",
value: "text/plain",
},
],
},
{
data: "This is an example transaction 2",
tags: [
{
name: "Content-Type",
value: "text/plain",
},
],
},
]);
// load the result into a DataItem instance
const dataItems = signed.map((buffer) => new DataItem(buffer));
// now you can submit them to a bundler
for (const dataItem of dataItems) {
await fetch(`https://upload.ardrive.io/v1/tx`, {
method: "POST",
headers: {
"Content-Type": "application/octet-stream",
},
body: dataItem.getRaw(),
});
}
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