Can I handle a non-JSON response in node-rest-client POST method?
This is the error and response i'm getting:
response: [PURGED], error: [SyntaxError: Unexpected token P in JSON at
position 0]
Can I somehow avoid getting an error? The function does what is requested.
I suppose creating a custom parser is a solution? I don't understand how to achieve it though.
You need to add a "mimetypes" attribute to your client options.
For example, something like this should enable you to handle XML as well as JSON responses:
const Client = require('node-rest-client').Client;
var client = new Client({mimetypes:{
json:["application/json","application/json;charset=utf-8"],
xml:["application/xml","application/xml;charset=utf-8"]
}});
client.post(...)
Related
how to check only one value is accepted when the request is inserted? if both values are passes then send the error message using json. Either RegNumber or Pan should be accepted. i am very new to this
{
"email_id": "sample#example.com",
"RegNumber": "AM47",
"FromDate": 062020,
"ToDate": 062022,
"SchemaCode": 560043,
"PAN": "ABC44X"
}
I think you meant by get error in json response means app should return Json when it crashes, so to do, we must use middlewares and when you expect some error in response override that response error with your own custom json dict with error details.
I'm currently using this Contentful-webhook-server to listen for webhooks when content is unpublished.
server.listen(30000, function(){
console.log('Contentful webhook server running on port ' + 30000)
});
server.on('ContentManagement.Entry.publish', function(req){
console.log('An entry was published!', req);
});
server.on('ContentManagement.Entry.unpublish', function(req){
console.log('An entry was unpublished!');
console.log('Deleted SOLR ID: ', req);
});
I'm trying to parse the response I've got but I can't seem to find a way to parse the custom JSON they use in their response. Should I be creating my own server with express or am I missing a way to get the response body in this example code.
The contentful-webhook-server library uses the plain node http module for the server. Thus, the req object is a readable stream that you need to buffer and parse to get the body.
Take a look at https://nodejs.org/en/docs/guides/anatomy-of-an-http-transaction/#request-body for an example.
I'm new to Grails and I'm stuck up with a problem. I want to know if there is a way to send both JSON and view and model through "render" in Grails.
I'm using a jQuery Datatable to display data returned from server which is read from JSON returned by the controller. I also need to display error messages on the same view in case of validation failure in form fields. But I'm able to return either only the JSON or model and view using render. I also tried sending the JSON through model itself but it didn't work.
This is my code:-
def hierarchyBreakInstance = new HierarchyBreak(params);
String json = "{\"sEcho\":\"1\",\"iTotalRecords\":0,\"iTotalDisplayRecords\":0,\"aaData\":[]}";
hierarchyBreakInstance.errors.reject(message(code: 'hierarchyBreak.error.division.blank'));
render(view: "hierarchyBreak", model: [hierarchyBreakInstance: hierarchyBreakInstance]);
//render json;
The gsp code:-
<g:hasErrors bean="${hierarchyBreakInstance}">
<div class="errorMessage" role="alert">
<g:eachError bean="${hierarchyBreakInstance}" var="error">
<g:if test="${error in org.springframework.validation.FieldError}" > data-field-id="${error.field}"</g:if>
<g:message error="${error}"/>
</g:eachError>
</div>
</g:hasErrors>
Could you please let me know if there is a way to do this. Thanks!
You can use like this.
def hierarchyBreakInstance = new HierarchyBreak(params);
String json = "{\"sEcho\":\"1\",\"iTotalRecords\":0,\"iTotalDisplayRecords\":0,\"aaData\":[]}";
hierarchyBreakInstance.errors.reject(message(code: 'hierarchyBreak.error.division.blank'));
render(view: "hierarchyBreak", model: [hierarchyBreakInstance: hierarchyBreakInstance,json:json]);
//render json;
Assuming that you are doing a request with some parameters, and need to return if was succesfull or not, and the data to fill the table with ajax.
I will do on that way, use the statuses of the HTTP to mark if it was a problem with the validation(normally we return 400 Bad Request and the message)
Example :
return ErrorSender.sendBadRequest("error validating field $field with value $value")
And the errorsender has a sendBadRequest method
[response: ['message': message, error: "bad_request", status: 400, cause: []], status: 400]
If the request was OK, you only need to respond the data with something like
return [response: results, status: 200]
In the client side you have to have one function if the request was OK to parse result, and one function if request have some validated data problem, database problem or whatever that caused that the request didn´t return a 200(in the example),there are more status codes, you can check on
http://en.wikipedia.org/wiki/List_of_HTTP_status_codes
PD: Initial validation should be done on client side.
I'm using core-ajax to retrieve JSON data just fine. Turning the component around to post back to the server as JSON is another thing altogether. In all cases, and irrespective of the contentType or handleAs parameters passed in, it appears that my JSON object I'm passing in as an input is being converted back to key=value in the server headers.
The code:
var ajax = document.querySelector('core-ajax');
ajax.method = 'POST';
ajax.handleAs = 'JSON';
ajax.contentType = 'application/json';
ajax.params = JSON.stringify(data);
ajax.go();
Really straightforward. The logs in Go give me:
2014/07/22 14:23:09 utils.go:139: OPTIONS /1/users/173?access_token=(token)
2014/07/22 14:23:09 utils.go:124: POST /1/users/173?access_token=(token)
2014/07/22 14:23:09 users.go:379: full_name=Greg%20Johnson
We've verified that there's no transformation happening on our side. Request headers are going out just fine.
I could completely be missing something. How else can we successfully POST out JSON data?
.params is for URL params. What you want is to post the JSON as the request body? For that, I believe you need to set the .body property:
This should do the trick:
ajax.body = data
See https://github.com/Polymer/core-ajax/blob/master/core-ajax.html#L151
I have created a WebAPI project to help capture statements from a TinCan learning course but I am having extreme difficulty in retrieving any of the Request payload details. Within this payload I pass the whole statement that I am trying to capture but upon trying to read using:
var test = Request.Content.ReadAsFormDataAsync().Result.ToString();
I get the following error message:
No MediaTypeFormatter is available to read an object of type 'FormDataCollection' from content with media type 'application/json'.
I have tried Converting the result object to JSON to overcome this problem but it has not been any use. Do I need to configure json somewhere in the configuration? I have tried adding
var appXmlType = config.Formatters.XmlFormatter.SupportedMediaTypes.FirstOrDefault(t => t.MediaType == "application/xml");
config.Formatters.XmlFormatter.SupportedMediaTypes.Remove(appXmlType);
and also:
var jsonFormatter = config.Formatters.JsonFormatter;
config.Formatters.Insert(0, jsonFormatter);
to my WebApiConfig.cs file as answered in another question of how to return json but I cannot seem to pass this error. I have also set config.formatter to accept application/json but this also has not worked
CONTROLLER CODE
public void Put([FromBody]string statementId)
{
var test = Request.Content.ReadAsFormDataAsync().Result;
System.Diagnostics.EventLog.WriteEntry("Application", "/xAPI/PUT has been called", System.Diagnostics.EventLogEntryType.Error);
}
From the error message you have provided, it seems like request content is in application/json. ReadAsFormDataAsync() can only read content of type application/x-www-form-urlencoded.
In this case, you can use ReadAsAsync<> if you have the type you want to be deserialized defined or simply use ReadAsStringAsync<> if you just want to read the content as a string.