I'd like to run a Pre-request script in POSTMAN that sends a request to a UUID generator API and saves the UUIDs as variables. Which I can call in the body of the request since they are required there.
Originally, I have two separate requests (1) a request to the UUID Generator API (2) and another to my private API. I'm able to set the 3 UUIDs as variables and call them to the body following request to my private API no problem and it works. Like so:
GET https://www.uuidgenerator.net/api/version1/3
pm.collectionVariables.set("UUID_1", pm.response.text().split(" ")[1])
pm.collectionVariables.set("UUID_2", pm.response.text().split(" ")[2])
pm.collectionVariables.set("UUID_3", pm.response.text().split(" ")[3])
**Response:**
1. f3600940-3684-11ec-8d3d-0242ac130003
2. f3600b70-3684-11ec-8d3d-0242ac130003
3. f3600c6a-3684-11ec-8d3d-0242ac130003
**Variables in body of next Request:**
"data": {
"uuid": "{{UUID_1}}",
"uuid2": "{{UUID_2}}",
"uuid3": "{{UUID_3}}",
Side note: The only way I figured out how to get individualized raw text data from a response is by using .split and the line the data is one, pm.response.text().split(" ")[1])
HOWEVER, I'd like to simplify things and insert the UUID Generator Request in the Pre-Request section so I don't need two separate Requests to make this work. But when inserting the same information that works in the prior request above to set these variables, it doesn't work.
The Pre-request script I have so far gives an error (below):
pm.sendRequest({
url: "https://www.uuidgenerator.net/api/version1/3",
method: 'GET'
}, function (err, res) {
pm.collectionVariables.set("UUID_1", pm.response.text().split(" ")[1])
pm.collectionVariables.set("UUID_2", pm.response.text().split(" ")[2])
pm.collectionVariables.set("UUID_3", pm.response.text().split(" ")[3])
});
POSTMAN Error:
There was an error in evaluating the Pre-request Script:Error: Cannot read property 'text' of undefined
Basically whichever different variations I try in collectionVariables.set in the Pre-request script....
pm.collectionVariables.set("UUID_1", pm.response.text().split(" ")[1])
OR
pm.collectionVariables.set("UUID_2", pm.response.split(" ")[2])
OR
pm.collectionVariables.set("UUID_3", pm.response.[3])
I receive errors that otherwise I wouldn't get if it was it's own Request (which works)
This leads me to believe it may be the inner workings of the Pre-Request Script I have.
You were nearly there. Array starts with [0] and you need to declare the response as res, as placed in the function:
pm.sendRequest({
url: "https://www.uuidgenerator.net/api/version1/3",
method: 'GET'
}, function(err, res){
pm.collectionVariables.set("UUID_1", res.text().split("\r\n")[0])
pm.collectionVariables.set("UUID_2", res.text().split("\r\n")[1])
pm.collectionVariables.set("UUID_3", res.text().split("\r\n")[2])
});
console.log(pm.response);