HTTP requester to call Graphql APIs


There is no MuleSoft certified connector available to call Graphql APIs in MuleSoft. In case if we come across a requirement to call Graphql endpoint in MuleSoft then we can leverage the existing HTTP Requestor to call Graphql APIs. Graphql calls are internally a POST call over HTTP.

For the demo we can call below graphql endpoint


Query payload

query Query($first: Int) {
  allFilms (last: $first) {
      speciesConnection {
        species {
          homeworld {


Graphql Variable

    "first": 1


We can see the below postman call to see Graphql endpoint in action

HTTP Requestor to call Graphql APIs


To show Graphql endpoint call using HTTP POST

HTTP POST payload

	"query": "query Query($first: Int) {\r\n  allFilms (last: $first) {\r\n    films{\r\n      title\r\n      director\r\n      releaseDate\r\n      speciesConnection {\r\n        species {\r\n          name\r\n          classification\r\n          homeworld {\r\n            name\r\n          }\r\n        }\r\n      }\r\n    }\r\n  }\r\n}\r\n",
	"variables": {
		"first": 1



HTTP Requestor to call Graphql APIs


Let’s do the same in MuleSoft

Create a project in Anypoint studio

HTTP Requestor to call Graphql APIs


Add the transformation to create the POST payload

HTTP Requestor to call Graphql APIs


Create the required HTTP requestor


Add logger to log the response


Now run the application and hit the http listener endpoint i.e., http://localhost:8081/graphql


We can see the logged message in Mule application


Sample Application – graphql-service

Sample POSTMAN collection – GraphQL.postman_collection.json

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