support many queries and mutations without operation names as we designed the queries from the client side very useful for dgraph
usecase:
- run dgraph
- create graphql schema for dgraph database (dgraph generates many queries and mutations related to your schema)
- create client custom queries and mutations
- generate client go graphql code that works with dgraph
Goal:
- auto generate code needed to do all the database communications
This is Go library for building GraphQL client with gqlgen
Now, if you build GraphQL api client for Go, have choice:
These libraries are very simple and easy to handle. However, as I work with gqlgen and graphql-code-generator every day, I find out the beauty of automatic generation. So I want to automatically generate types.
go get -u github.com/mariospas/gqlgenc
gqlgenc base is gqlgen with plugins. So the setting is yaml in each format.
gqlgenc can be configured using a .gqlgenc.yml
file
Load a schema from a remote server:
model:
package: generated
filename: ./models_gen.go # https://github.com/99designs/gqlgen/tree/master/plugin/modelgen
client:
package: generated
filename: ./client.go # Where should any generated client go?
models:
Int:
model: github.com/99designs/gqlgen/graphql.Int64
Date:
model: github.com/99designs/gqlgen/graphql.Time
endpoint:
url: https://api.annict.com/graphql # Where do you want to send your request?
headers: # If you need header for getting introspection query, set it
Authorization: "Bearer ${ANNICT_KEY}" # support environment variables
query:
- "./query/*.graphql" # Where are all the query files located?
generate:
clientV2: true # Generate a Client that provides a new signature
clientInterfaceName: "GithubGraphQLClient" # Determine the name of the generated client interface
Load a schema from a local file:
model:
package: generated
filename: ./models_gen.go # https://github.com/99designs/gqlgen/tree/master/plugin/modelgen
client:
package: generated
filename: ./client.go # Where should any generated client go?
models:
Int:
model: github.com/99designs/gqlgen/graphql.Int64
Date:
model: github.com/99designs/gqlgen/graphql.Time
schema:
- "schema/**/*.graphql" # Where are all the schema files located?
query:
- "./query/*.graphql" # Where are all the query files located?
generate:
clientV2: true # Generate a Client that provides a new signature
clientInterfaceName: "GithubGraphQLClient" # Determine the name of the generated client interface
Execute the following command on same directory for .gqlgenc.yml
gqlgenc
or if you want to specify a different directory where .gqlgenc.yml file resides (e.g. in this example the directory is schemas):
gqlgenc generate --configdir schemas
Do this when creating a server and client for Go. You create your own entrypoint for gqlgen. This use case is very useful for testing your server.
package main
import (
"fmt"
"os"
"github.com/mariospas/gqlgenc/clientgen"
"github.com/99designs/gqlgen/api"
"github.com/99designs/gqlgen/codegen/config"
)
func main() {
cfg, err := config.LoadConfigFromDefaultLocations()
if err != nil {
fmt.Fprintln(os.Stderr, "failed to load config", err.Error())
os.Exit(2)
}
queries := []string{"client.query", "fragemt.query"}
clientPackage := config.PackageConfig{
Filename: "./client.go",
Package: "gen",
}
clientPlugin := clientgen.New(queries, clientPackage)
err = api.Generate(cfg,
api.AddPlugin(clientPlugin),
)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(3)
}
}
These codes have Japanese comments. Replace with English.
This client does not support subscription. If you need a subscription, please create an issue or pull request.
clientgen is created based on modelgen. So if you don't have a modelgen, it may be a mysterious move.