Use json objects. Do something like that. Don't write json by hand, you could easily do a mistake.

public JSON() throws JSONException
{
    JSONArray locArr=new JSONArray();
    locArr.put(createLatLng(40.900799, 8.606102));
    locArr.put(createLatLng(42.900799, 9.606102));
    JSONObject main=new JSONObject();
    main.put("locations", locArr);
    Log.d("JSON",main.toString());      
}


public JSONObject createLatLng(double lat, double lng) throws JSONException
{
    JSONObject latLng=new JSONObject();
    latLng.put("lat",lat);
    latLng.put("lon",lng);
    JSONObject latLngWrap=new JSONObject();
    latLngWrap.put("latLng",latLng);
    return latLngWrap;
}

You need to use the cURL library to send this request.

<?php
// Your ID and token
$blogID = '8070105920543249955';
$authToken = 'OAuth 2.0 token here';

// The data to send to the API
$postData = array(
    'kind' => 'blogger#post',
    'blog' => array('id' => $blogID),
    'title' => 'A new post',
    'content' => 'With <b>exciting</b> content...'
);

// Setup cURL
$ch = curl_init('https://www.googleapis.com/blogger/v3/blogs/'.$blogID.'/posts/');
curl_setopt_array($ch, array(
    CURLOPT_POST => TRUE,
    CURLOPT_RETURNTRANSFER => TRUE,
    CURLOPT_HTTPHEADER => array(
        'Authorization: '.$authToken,
        'Content-Type: application/json'
    ),
    CURLOPT_POSTFIELDS => json_encode($postData)
));

// Send the request
$response = curl_exec($ch);

// Check for errors
if($response === FALSE){
    die(curl_error($ch));
}

// Decode the response
$responseData = json_decode($response, TRUE);

// Close the cURL handler
curl_close($ch);

// Print the date from the response
echo $responseData['published'];

If, for some reason, you can't/don't want to use cURL, you can do this:

<?php
// Your ID and token
$blogID = '8070105920543249955';
$authToken = 'OAuth 2.0 token here';

// The data to send to the API
$postData = array(
    'kind' => 'blogger#post',
    'blog' => array('id' => $blogID),
    'title' => 'A new post',
    'content' => 'With <b>exciting</b> content...'
);

// Create the context for the request
$context = stream_context_create(array(
    'http' => array(
        // http://www.php.net/manual/en/context.http.php
        'method' => 'POST',
        'header' => "Authorization: {$authToken}\r\n".
            "Content-Type: application/json\r\n",
        'content' => json_encode($postData)
    )
));

// Send the request
$response = file_get_contents('https://www.googleapis.com/blogger/v3/blogs/'.$blogID.'/posts/', FALSE, $context);

// Check for errors
if($response === FALSE){
    die('Error');
}

// Decode the response
$responseData = json_decode($response, TRUE);

// Print the date from the response
echo $responseData['published'];

The error clearly suggests that your JSON is not correct. If we analyze the payload property:

{
  "key": "test",
  "payload": "[{"IDNew":1,"NameNew":"t1","DescriptionNew":"t1d", "IntegerValueNew":1, "DecimalValueNew":123.3}]"
}

It seems you are creating a string object which further contains a JSON as a string. Generally, when you pass an array, you would pass it like this.

{
  "key": "test",
  "payload": [
    {
      "IDNew": 1,
      "NameNew": "t1",
      "DescriptionNew": "t1d",
      "IntegerValueNew": 1,
      "DecimalValueNew": 123.3
    }
  ]
}

But, since value of the payload property is not properly escaped, which is why it is not properly able to parse it as it has unexpected characters for a string value.

If you strictly want to pass a JSON Array as a string object, you need to properly escape it in order to get it working. For example below is a JSON that contains JSON as a string with properly escaped properties:

{
  "key": "test",
  "payload": "[{\"IDNew\":1,\"NameNew\":\"t1\",\"DescriptionNew\":\"t1d\", \"IntegerValueNew\":1, \"DecimalValueNew\":123.3}]"
}

This is how you would escape your JSON if you strictly want to pass a JSON object that further contains JSON as string.

Or, perhaps, use single quote (') instead for the nested JSON. For example below is a JSON that contains JSON as a string with a single quotes for the properties:

{
  "key": "test",
  "payload": "[{'IDNew':1,'NameNew':'t1','DescriptionNew':'t1d', 'IntegerValueNew':1, 'DecimalValueNew':123.3}]"
}

UPDATE

I just wanted to add a suggestion that would be less confusing and would generate an accurate output for the scenario.

It would be nice if you generate the models for your intended JSON string and serialize the model to get a JSON string then do the assignment to payload property.

var payload = new List<payloadSample1>();
payload.Add(new payloadSample1{ IDNew = 1, NameNew = "t1", DescriptionNew = "t1d" });
var payloadStr = JsonConvert.SerializeObject(payload);
// payloadStr would contain your JSON as a string.

In C#, you can also generate dynamic type objects. Use those if your JSON is constantly varying and you find it hectic to create many models for many api requests.

var payload = new List<dynamic>();
payload.Add(new { IDNew = 1, NameNew = "t1", DescriptionNew = "t1d" });
var payloadStr = JsonConvert.SerializeObject(payload);
// And even then, if you have a further JSON object to send:
var payloadParent = new { key = "test", payload = payloadStr };
// send payloadParent as your json.

This is not the cleanest approach because of many reasons one out of those would be, when there is a change in your model, you will have to manually analyze all your dynamic objects and change all the references where you are using it. But, certainly, it will reduce the confusion behind escaping and maintaining the strings.

If you are using JavaScript make the api call, then generate a proper JSON object and then stringify it to get a string.

Hi @barryrodick Better way is to write the json body to be written in text file and then use read text file activitiy and store the data in string variable and placing the string varaible in json body part of http request activitiy Hope the idea helps you Regards Nived N :robot: Happy Automatio…

For my first go at this I tried the same thing, and figured out pretty quick that JSON and HTMX is a bit of a square peg/round hole thing. You _can_ get this to work, but you should probably just use form/input elements to store the values you want to pass around. From the docs and general vibes, it feels like a more natural way to interface with HTMX. How you go about this depends a bit on your templating language. I'm still working this out myself, so this example could be completely whack (anyone with more exp pls chime in) Disable If the wrapping form messes things up, you can put the input inside the button and use hx-include="this" or something along those lines. If the API is expecting JSON and JSON only, then yeah, you'll need to look more into json-enc. Make sure you're 'installing' the extension, as per README here: https://github.com/bigskysoftware/htmx-extensions/blob/main/src/json-enc/README.md Edit: For anyone else hitting this later needing to send actual JSON, u/langbuilder made a `json-enc` alternative here: https://www.reddit.com/r/htmx/comments/1igqikp/new_htmx_extension/