Component method response object data binding - vue.js

Question

I am starting to lose my mind in debugging an application that I inherited from a fellow developer who is absent.
I have narrowed down the problem to the following place in code (php files are checked, Vue instances are initialised, there are no syntax errors).
This is my the component that gets initialised:
var RadniStol = Vue.component('radnistol', {
template: '#template-RadniStol',
data() {
return {
tableData: [],
requestData: {
sort: "ID",
order: "DESC"
}
}
},
methods: {
reloadTable: function (event) {
data = this.requestData;
this.$http.post('php/get/radni_stol.php', data).then(response => {
console.log(response.data.bodyText);
this.tableData = response.data.records;
});
},
.
.
.
The PHP file that gets called with the POST method is working correctly, querying the database and echoing the response in a JSON format.
The thing that is making me pull out my hair is the following: the console.log(response.data) outputs the following into the console:
{"records":[{"DODAN_NA_RADNI_STOL":"1","..."}]}
It is an JSON object that I expected to have but when trying to assign it to the data of the component with:
this.tableData = response.data;
or any other way… response.data.records returns ‘undefined’ in the console. I have tryed with JSON.parse() but no success.
When logging types to console:
response variable is a response object with a status 200 and body and bodyText containing the data from the database.
response.data is a string type containing the string JSON with the data from the database.
When trying to use JSON.parse(response.data) or JSON.parse() on anything in the callback of the POST method I get the following error in the console:
RadniStol.js?version=0.1.1:17 Uncaught (in promise) SyntaxError: Unexpected token in JSON at position 0
at JSON.parse (<anonymous>)
at VueComponent.$http.post.then.response (RadniStol.js?version=0.1.1:17)
at <anonymous>
I am really starting to lose my mind over this issue, please help!
Thank you

Answer 1

If response.data is string, with JSON inside, then to access the records field, you should decode it like this:
JSON.parse(response.data).records
Not sure this has something to do with PHP or Vue.js, it is just plain javascript issue.
If it not decodes, than problem is definitely in response.data. For example
{"records":[{"DODAN_NA_RADNI_STOL":"1","..."}]}
is not a valid JSON, because key "..." needs to have some value.
But it seems to me that response.data is already parsed.
What I suggest you to do, is to write handler of the response as separate function, make response object that mimics actual response object by hand, and then test it separately from request. So you could show us request object and function that works with it.

Answer 2

I had the same error and fixed it.
Result will be response.body not response.data.
Here is my code:
getS: function(page) {
this.$http.get('vue-manager?page=' + page).then((response) => {
var data = JSON.parse(response.body);
this.student = data.data.data;
this.pagination = data.pagination;
});
},