Graphql post body "Must provide query string." - express

Question

I use Express-graphql middleware.
I send the following request in the body line:
POST /graphql HTTP/1.1
Host: local:8083
Content-Type: application/graphql
Cache-Control: no-cache
Postman-Token: d71a7ea9-5502-d5fe-2e36-0ae49c635a29
{
testing {
pass(id: 1) {
idn
}
}
}
and have error
{
"errors": [
{
"message": "Must provide query string."
}
]
}
in graphql i can send update in URL.
URL string is too short. i must send update model like
mutation {
update(id: 2, x1: "zazaza", x2: "zazaza", x3: "zazaza" ...(more more fields)...) {
idn
}
}
I think its must be in request body. How can I send 'update' query or that I'm doing wrong?

Answer 1

Post request needs to manage headers info.
Using Http client - Content-Type: application/json
Using Postman client - Content-Type: application/graphql
but request body looks like string
{"query":"mutation{update(id:1,x1:\"zazaz\",x2:\"zazaz\"......){id x1 x2}}"}

Answer 2

If you are using graphql and want to test it using postman or any other Rest client do this.
In postman, select POST method and enter your URL and set Content-Type as application/graphql then pass your query in the body.
Example:
http://localhost:8080/graphql
Mehtod: POST
Content-Type: application/graphql
Body:
query{
FindAllGames{
_id
title
company
price
year
url
}
}
Thats it you will get the response.

Answer 3

Using Postman Version 7.2.2 I had a similar issue. This version of Postman supports Graphql out of the box. Changing the Content-type to application/json fixed it for me.

Answer 4

for me worked like as following:
In the body
In the Headers
Don't forget mark GraphQl [x] on Body settings
And how was quoted before changes the verb to POST.

Answer 5

This generally occurs when your 'express-graphql' doest receive any params. You need to added a json/applicaton parser in your application.
npm install body-parser
eg -
const bodyParser = require('body-parser');
app.use(bodyParser.json()); // application/json

Answer 6

go to the relevant web page and open "inspect" (by write click ->
inspect || Ctrl+Shift+I in chrome)
go to the network tab and copy the cURL command
open the postman ,then import -> raw text
paste the copied command
then,continue ->

Answer 7

Switch content type to JSON.
Like this

Answer 8

Check if you are using correct protocol in your Postman requests.
I used HTTP instead of HTTPS and this caused the same error.
Changes of content-type, raw or json instead of graphql type didn't help.