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query_nodes.go
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/
query_nodes.go
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package keeper
import (
"context"
"cosmossdk.io/orm/model/ormlist"
sdk "github.com/cosmos/cosmos-sdk/types"
geonodev1 "github.com/chora-io/mods/geonode/api/v1"
v1 "github.com/chora-io/mods/geonode/types/v1"
"github.com/chora-io/mods/geonode/utils"
)
// Nodes implements the Query/Nodes method.
func (k Keeper) Nodes(ctx context.Context, req *v1.QueryNodesRequest) (*v1.QueryNodesResponse, error) {
// set index for table lookup
index := geonodev1.NodeIdIndexKey{}
// set pagination for table lookup
pgnReq, err := utils.GogoPageReqToPulsarPageReq(req.Pagination)
if err != nil {
return nil, err // internal error
}
// get nodes from node table
it, err := k.ss.NodeTable().List(ctx, index, ormlist.Paginate(pgnReq))
if err != nil {
return nil, err // internal error
}
// set nodes for query response
nodes := make([]*v1.QueryNodesResponse_Node, 0, 10)
for it.Next() {
v, err := it.Value()
if err != nil {
return nil, err // internal error
}
curator := sdk.AccAddress(v.Curator).String()
node := v1.QueryNodesResponse_Node{
Id: v.Id,
Curator: curator,
Metadata: v.Metadata,
}
nodes = append(nodes, &node)
}
// set pagination for query response
pgnRes, err := utils.PulsarPageResToGogoPageRes(it.PageResponse())
if err != nil {
return nil, err // internal error
}
// return query response
return &v1.QueryNodesResponse{
Nodes: nodes,
Pagination: pgnRes,
}, nil
}