31 lines
557 B
Go
31 lines
557 B
Go
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package tokens
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import (
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"fmt"
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"github.com/ipld/go-ipld-prime"
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"github.com/ipld/go-ipld-prime/codec/dagcbor"
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"github.com/ucan-wg/go-ucan/tokens/delegation"
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"github.com/ucan-wg/go-ucan/tokens/internal/envelope"
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)
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func FromDagCbor(b []byte) (any, error) {
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node, err := ipld.Decode(b, dagcbor.Decode)
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if err != nil {
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return nil, err
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}
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tag, err := envelope.FindTag(node)
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if err != nil {
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return nil, err
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}
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switch tag {
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case delegation.Tag:
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return delegation.FromIPLD(node)
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default:
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return nil, fmt.Errorf(`unknown tag "%s"`, tag)
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}
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}
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