feat: Implement createAuthLink mutation

packages/backend/src/graphql/mutations/create-auth-link.ts

@@ -0,0 +1,35 @@
+import { GraphQLNonNull, GraphQLInt } from 'graphql';
+import Credential from '../../models/credential';
+import authLinkType from '../types/auth-link';
+import User from '../../models/user';
+
+type Params = {
+  credentialId: number,
+}
+const createAuthLinkResolver = async (params: Params) => {
+  const user = await User.query().findOne({
+    email: 'user@automatisch.com'
+  })
+
+  const credential = await Credential.query().findOne({
+    user_id: user.id,
+    id: params.credentialId
+  })
+
+  const appClass = (await import(`../../apps/${credential.key}`)).default;
+
+  const appInstance = new appClass(credential.data)
+  const authLink = await appInstance.createAuthLink();
+
+  return authLink;
+}
+
+const createAuthLink = {
+  type: authLinkType,
+  args: {
+    credentialId: { type: GraphQLNonNull(GraphQLInt) },
+  },
+  resolve: (_: any, params: Params) => createAuthLinkResolver(params)
+};
+
+export default createAuthLink;