This Collection is an example of setting global variables based on an array in response data, then using looping to POST each value.
\n","schema":"https://schema.getpostman.com/json/collection/v2.0.0/collection.json","toc":[{"content":"About this Collection","slug":"about-this-collection"}],"owner":"5293839","collectionId":"35e8c264-4fcb-4216-b797-cb80aca63624","publishedId":"SW7XbVew","public":true,"customColor":{"top-bar":"FFFFFF","right-sidebar":"303030","highlight":"EF5B25"},"publishDate":"2019-11-18T23:37:27.000Z"},"item":[{"name":"Get Array","event":[{"listen":"test","script":{"id":"61370787-a69f-4b9d-9039-d509ca3ef990","exec":["var array = pm.response.json().args.parentProperty[0].childProperty2; // the array we're iterating through, stored in childProperty2[]","","for(var i = 0; i < array.length-1; i++) // loop through the array","{"," var pieceValue = array[i].id; // the specific value were setting as a global variable"," pm.globals.set('pieceId'+i,pieceValue); // use i to increment the name of the global variable we're setting, and set it to the appropriate value from childProperty2[]","}"],"type":"text/javascript"}},{"listen":"prerequest","script":{"id":"a8e41860-e2ba-4b8b-9f34-11ffc22cbf4a","exec":[""],"type":"text/javascript"}}],"id":"2c9dd426-8146-43e3-9f75-002c80c76523","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"GET","header":[{"key":"Content-Type","name":"Content-Type","type":"text","value":"application/json"}],"body":{"mode":"raw","raw":"{\n\t\"parentProperty\":[\n\t\t{\n\t\t\"childProperty1\":[\n\t\t\t\"a\",\"b\",\"c\"],\n\t\t\"childProperty2\":[\n\t\t\t{\"id\":1},\n\t\t\t{\"id\":2},\n\t\t\t{\"id\":3},\n\t\t\t{\"id\":4},\n\t\t\t{\"id\":5},\n\t\t\t{\"id\":6},\n\t\t\t{\"id\":7},\n\t\t\t{\"id\":8},\n\t\t\t{\"id\":9},\n\t\t\t{\"id\":0}\n\t\t\t]\n\t\t}\n\t\t]\n}"},"url":"https://postman-echo.com/get","description":"This request uses Postman Echo to get a response with sample data for us to use. The request send a JSON body, which the service echos back.
\nThe important part of this request is its Test Script, which takes data from an array within the response and stores it as global variables.
\n","urlObject":{"protocol":"https","path":["get"],"host":["postman-echo","com"],"query":[],"variable":[]}},"response":[],"_postman_id":"2c9dd426-8146-43e3-9f75-002c80c76523"},{"name":"POST Array Data","event":[{"listen":"prerequest","script":{"id":"8843a526-c311-4d13-8074-d94406162665","exec":["// check to see if there is a counter run-scoped variable, and if there isn't create one with value=0.","// this is for iterating through the global variables stored, and stopping when there's none left.","if(!pm.variables.has('counter')){"," pm.variables.set('counter',0);","}","","// get the current value of the run-scoped variable \"counter\"","var counter = pm.variables.get('counter');","","// if there is a variable called (e.g.) pieceId0, get it's value and set a run-scoped variable","if(pm.globals.has(\"pieceId\" + counter)){"," var pieceIdValue = pm.globals.get(\"pieceId\" + counter)"," pm.variables.set(\"pieceIdDynamic\",pieceIdValue)","}","","// increment the counter variable","counter++;","","// store the current value of the Sandbox variable counter, in the run-scoped variable \"counter\"","// this is so that the counter value persists between loops of the POST request","pm.variables.set('counter',counter);","","// if there is another global variable to send, set the next request as this same request (loop it again)","if(pm.globals.has(\"pieceId\"+counter)){"," postman.setNextRequest(\"POST Array Data\")","}"],"type":"text/javascript"}},{"listen":"test","script":{"id":"a4b15c06-e252-47a9-89df-ca44c65220fd","exec":["pm.test(\"content-type is application/json\", function () {"," let responseHeaders = pm.response.headers.all();"," let index = -1;"," for(var i = 0; i < responseHeaders.length-1; i++)"," {"," console.log(responseHeaders[i]);"," if(responseHeaders[i].key === 'Content-Type')"," {"," index = i;"," break;"," }"," }"," "," pm.expect(index).to.not.equal(-1);"," pm.expect(responseHeaders[index].value).to.equal('application/json; charset=utf-8');","});"],"type":"text/javascript"}}],"id":"08f8138d-0962-4e7e-bbdd-7b6231610665","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"POST","header":[{"key":"Content-Type","value":"application/json; charset=utf-8","type":"text"}],"body":{"mode":"raw","raw":""},"url":"https://postman-echo.com/post?pieceId={{pieceIdDynamic}}","description":"This request POSTs data stored in global variables, using postman.setNextRequest() in a pre-request script to loop the request over and over until all data has been sent.
\n","urlObject":{"protocol":"https","path":["post"],"host":["postman-echo","com"],"query":[{"key":"pieceId","value":"{{pieceIdDynamic}}"}],"variable":[]}},"response":[],"_postman_id":"08f8138d-0962-4e7e-bbdd-7b6231610665"}],"event":[{"listen":"prerequest","script":{"id":"9e2f864a-7603-418e-b7dd-abe6da3ddbc8","type":"text/javascript","exec":[""]}},{"listen":"test","script":{"id":"c3325dff-9b73-4597-adc3-c89449f814a0","type":"text/javascript","exec":[""]}}]}