can i get requested fields in resolve

[孙浩林]

I found a npm package graphql-parse-resolve-info to parses a GraphQLResolveInfo object into a tree of the fields.

May be in createActionResolver method , add resolveInfo as the fourth param behind root, args, context,

moleculer-apollo-server/src/service.js

Lines 152 to 162 in 7f0e2e2

 createActionResolver(actionName, def = {}) { 
 	const { 
 		dataLoader: useDataLoader = false, 
 		nullIfError = false, 
 		params: staticParams = {}, 
 		rootParams = {}, 
 		fileUploadArg = null, 
 	} = def; 
 	const rootKeys = Object.keys(rootParams); 
  
 	return async (root, args, context) => { 

And then passed as meta to action, return await context.ctx.call(actionName, mergedParams, { meta: { resolveInfo } });

moleculer-apollo-server/src/service.js

Line 254 in 7f0e2e2

 return await context.ctx.call(actionName, mergedParams); 

[Shawn McKnight]

@sunhaolin Since createActionResolver is a mixin method, you can provide your own definition and behavior for what it does. essentially you can override it to have the implementation you are looking for without a need to modify moleculer-apollo-server. Please try that out and see if it works for you.

[孙浩林]

@shawnmcknight works fine, thank you very mach!