Post array using http in flutter

Question

Anyone know how to post array using http?

var headers = {"Accept": "application/json"};
      var url = "https://...."
      var response = await http.post(url,
          body: {
           ....
          },

I have a param named commentList. I need to pass comment[0], comment[1]... inside body.

How to use for loop inside the body???

for(var i in list){
"comments"+"["+index+"]" = i;
   index ++; 
}

Here the postman key and value

@raina77ow I would like to post it as comment[0],comment[1]. Is the link provided work in my case? — Tony
– Tony, Commented Oct 11, 2020 at 17:21

Bilal Şimşek · Accepted Answer · 2020-10-11 19:02:13Z

0

if you need to combine comments for specific reason you can do like this.

List commentList = ['comment1','comment2','comment3'];
Map<String, dynamic> body;

combine them:

String comments ='';
  
  commentList.forEach((comment){
    
    comments +=comment+' ';
    
  });
 body = {'combinedComments':comments};

then post :

var headers = {"Accept": "application/json"};
      var url = "https://...."
      var response = await http.post(url,
          body: this.body);

or just use json encode to convert your list to string;

Map<String,dynamic> body = {'comments' :jsonEncode(commentList)};

and use this as body to post.

answered Oct 11, 2020 at 19:02

Bilal Şimşek

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Tony · Accepted Answer · 2020-10-12 07:25:47Z

0

I managed to fix it.

int count = 0;

var url = "https://xxx";
      var response = await http.post(url,
          body: {
            for (var i in list) 'comments[${count++}]':i,
            ....
          },
          headers: headers);

answered Oct 12, 2020 at 7:25

Tony

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