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Connected App is required to connect Salesforce GraphQL API from Postman client.
1. Create a Connected App in Salesforce.
Callback URL should be https://{Your Domain}.my.salesforce.com/services/oauth2/callback
Example:
https://test-ec-dev-ed.develop.my.salesforce.com/services/oauth2/callback
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2. Get the Access token.
Endpoint URL:
https://test-ec-dev-ed.develop.my.salesforce.com/services/oauth2/token
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3. Use the Access Token from Step 2 in the Header and make a POST Request to the GraphQL API endpoint.
Endpoint:
https://test-ec-dev-ed.develop.my.salesforce.com/services/data/v59.0/graphql
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