34 lines
730 B
Go
34 lines
730 B
Go
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package gql
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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)
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// Represents an IPLD link. Links are generally but not necessarily implemented as CIDs
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type Link string
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func (l Link) String() string {
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return string(l)
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}
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// UnmarshalGQLContext implements the graphql.ContextUnmarshaler interface
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func (l *Link) UnmarshalGQLContext(_ context.Context, v interface{}) error {
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s, ok := v.(string)
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if !ok {
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return fmt.Errorf("Link must be a string")
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}
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*l = Link(s)
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return nil
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}
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// MarshalGQLContext implements the graphql.ContextMarshaler interface
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func (l Link) MarshalGQLContext(_ context.Context, w io.Writer) error {
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encodable := map[string]string{
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"/": l.String(),
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}
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return json.NewEncoder(w).Encode(encodable)
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}
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