**To add the 'Content-Type: application/json' Mapping Template configured with Input Passthrough** Command:: aws apigateway update-integration \ --rest-api-id a1b2c3d4e5 \ --resource-id a1b2c3 \ --http-method POST \ --patch-operations "op='add',path='/requestTemplates/application~1json'" **To update (replace) the 'Content-Type: application/json' Mapping Template configured with a custom template** Command:: aws apigateway update-integration \ --rest-api-id a1b2c3d4e5 \ --resource-id a1b2c3 \ --http-method POST \ --patch-operations "op='replace',path='/requestTemplates/application~1json',value='{"example": "json"}'" **To update (replace) a custom template associated with 'Content-Type: application/json' with Input Passthrough** Command:: aws apigateway update-integration \ --rest-api-id a1b2c3d4e5 \ --resource-id a1b2c3 \ --http-method POST \ --patch-operations "op='replace',path='requestTemplates/application~1json'" **To remove the 'Content-Type: application/json' Mapping Template** Command:: aws apigateway update-integration \ --rest-api-id a1b2c3d4e5 \ --resource-id a1b2c3 \ --http-method POST \ --patch-operations "op='remove',path='/requestTemplates/application~1json'"