Support apollo-client v3 and it's hooks by default, deprecate hoc and…

… components. Updated all imports to latest (#4487)

* support apollo-client v3 andi t's hooks by default, deprecate hoc and components. Updated all imports to latest

* added changeset with migration notes

* fixed for grouping all apollo related imports under the same namespace

.changeset/hip-meals-double.md

@@ -0,0 +1,41 @@
+---
+'@graphql-codegen/typescript-react-apollo': major
+---
+
+Support Apollo-Client v3 by default (instead of v2), and generate React Hooks be default. HOC and Components are now disabled by default.
+
+Apollo Client v3 has React support integrated as part of the core package now, so that means that some imports, identifiers and usage should be updated. [You can read more about migrating to Apollo-Client v3 here](https://www.apollographql.com/docs/react/migrating/apollo-client-3-migration/)
+
+That means that imports are now generated from `@apollo/client` package, including `gql` tag. React Hooks are generated by default, and HOC and Components are not generated.
+
+## Migration Notes
+
+If you are still using the [deprecated](https://github.com/apollographql/react-apollo) `react-apollo` package, please set this configuration:
+
+```yaml
+config:
+  reactApolloVersion: 2
+```
+
+If you are still using the generated React HOC, please set this additional configuration:
+
+```yaml
+config:
+  reactApolloVersion: 2
+  withHOC: true
+```
+
+If you are still using the generated React Components, please set this additional configuration:
+
+```yaml
+config:
+  reactApolloVersion: 2
+  withComponent: true
+```
+
+If you don't need the generated React Hooks (turned on by default now), please also set:
+
+```yaml
+config:
+  withHooks: false
+```

dev-test/codegen.yml

@@ -157,6 +157,15 @@ generates:
       - typescript
       - typescript-operations
       - typescript-react-apollo
+  ./dev-test/githunt/types.reactApollo.v2.tsx:
+    schema: ./dev-test/githunt/schema.json
+    documents: ./dev-test/githunt/**/*.graphql
+    config:
+      reactApolloVersion: 2
+    plugins:
+      - typescript
+      - typescript-operations
+      - typescript-react-apollo
   ./dev-test/githunt/types.reactApollo.customSuffix.tsx:
     schema: ./dev-test/githunt/schema.json
     documents: ./dev-test/githunt/**/*.graphql
@@ -182,8 +191,6 @@ generates:
       - typescript
       - typescript-operations
       - typescript-react-apollo
-    config:
-      withHooks: true
   ./dev-test/githunt/types.apolloAngular.ts:
     schema: ./dev-test/githunt/schema.json
     documents: ./dev-test/githunt/**/*.graphql
@@ -347,7 +354,4 @@ generates:
       reactApolloVersion: 3
       gqlImport: graphql-tag
       hooksImportFrom: '@apollo/react-hooks'
-      withHooks: true
-      withHOC: false
-      withComponent: false
       withMutationFn: false