luhooglx.blogg.se - Postman graphql

#POSTMAN GRAPHQL HOW TO#
#POSTMAN GRAPHQL CODE#

Note: Copy pasting the query which we have used in postman doesn’t work which will through a “Bad Request” error.

GraphQL query needs to be passed in the body of the HTTP Post call which we can achieve it by hardcoding the same in body of the Content Modifier.

In the content modifier, hardcode the header as shown in the below screenshot.

The sender http is to trigger an integration flow.

These two things need to be carried out exclusively in CPI to integrate the DynamoDB.

But, the Postman has the inbuilt capacity to calculate the “Host” and “AWS Signature” based on the inputs that we have given.

We are going to follow the same procedure in CPI like we did in Postman.

As said earlier, you could observe that, the response will be in json structure enclosed with in “data” field which typically same as the query structure which we have given as input.Ĭonsuming GraphQL API hosted on AppSync-AWS from SAP CPI:.

#POSTMAN GRAPHQL CODE#

You can see in the above screenshot, we have got successful response code as well as the data.Now, we are all set to post this message to AWS and let we see what we are getting as a response.So, finalize the GraphQL query after understanding the GraphQL schema completely and input the same in the body of your request. GraphQL works in a way where you will get the response based on what you give as input query.Input your region name in the field “AWS Region” and Input “appsync” in the field “Service Name”. Input the “AccessKey” and “SecretKey” which should be basically provided by your AWS consultant. Choose the Authentication method as “AWS Signature”.It typically looks in the format as below:“ Create post request from Postman and enter the request URL as GraphQL API.In this topic, we are going to see how we can consume GraphQL API hosted on AppSync Service in AWS from Postman.To know more, Please check GraphQL.Ĭonsuming GraphQL API hosted on AppSync-AWS from Postman:

The server then takes the data and returns it to the client in a JSON object.

Just like a typical API server, the GraphQL API server then makes calls to a database or other services to fetch the data that the client requested.

As per the GraphQL syntax and the graph data model (GraphQL schema), the server processes and validates the GraphQL query.

The server gets the JSON object and extracts the query string.

So, when we make a ‘POST’ request to send our GraphQL query to the server, it is sent as a “string” by the client. It looks like the shape of the JSON you want.

Note: The GraphQL query is not really JSON.

GraphQL is designed for developers of web/mobile apps (HTTP clients) to be able to make API calls to fetch exactly the data they need from their backend APIs.

It’s typically used over HTTP where the key idea is to POST a “query” to an HTTP endpoint, instead of hitting different HTTP endpoints for different resources.

#POSTMAN GRAPHQL HOW TO#

GraphQL is a specification for how to talk to an API.Knowledge on GraphQL Query and GraphQL Schema.Post then, we will see on how to consume the same from SAP Cloud Platform Integration (CPI). In this Blog, we are going to see on how to consume GraphQL API hosted on AWS AppSync from Postman.

To consume the data from the server, a GraphQL API has been created using AppSync service in AWS and the same needs to be consumed by SAP CPI as a part of integration with the help of GraphQL Schema. I have got a requirement wherein I need to integrate with Web Application hosted on AWS Cloud. Now, We are going to focus on the GraphQL API hosted on AppSync in AWS. In our last Blog, We have seen how to Integrate SAP CPI with AWS DynamoDB service.