feat: enable gRPC HTTP gateway (#1085)

# Related Github tickets

- #1083
- VolumeFi#1257

# Background

All custom modules have at least some HTTP API endpoints configured, but
none of them were enabled. This change makes sure all modules register
their endpoints accordingly. Make sure to set `api.enable` to `true` in
`~/.paloma/config/app.toml` by default the API is disabled.

# Testing completed

- [x] test coverage exists or has been added/updated
- [x] tested in a private testnet

# Breaking changes

- [x] I have checked my code for breaking changes
- [x] If there are breaking changes, there is a supporting migration.

x/consensus/module.go

@@ -1,6 +1,7 @@
 package consensus
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -74,6 +75,9 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.

x/evm/module.go

@@ -1,6 +1,7 @@
 package evm
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -74,6 +75,9 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.

x/metrix/module.go

@@ -1,6 +1,7 @@
 package metrix
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -76,6 +77,9 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.

x/paloma/module.go

@@ -1,6 +1,7 @@
 package paloma
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -74,6 +75,9 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.

x/scheduler/module.go

@@ -1,6 +1,7 @@
 package scheduler
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -74,6 +75,9 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.

x/treasury/module.go

@@ -1,6 +1,7 @@
 package treasury
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -74,6 +75,9 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.

x/valset/module.go

@@ -1,6 +1,7 @@
 package valset
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -74,6 +75,9 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.