admin管理员组文章数量:1313121
Steps to reproduce error: /
I have been following the above tutorial for sending an API request to Spotify. I am successful in getting the authorisation codes, however, Postman has an error when running the collection for Spotify despite following the tutorial correctly.
From looking at the console, there is an error at the line shown below: Error message reads XPath runner/search already exists Error running scripts: JSONError | Unexpected token u in JSON at position 0 Error executing pre-request scripts for Get Artist Top Tracks: JSONError: Unexpected token u in JSON at position 0 Two others experienced the issue but they were never replied to. Any ideas how to fix this? I am new to API requests so any help would be muchly appreciated!
Pre request script for auth:
var client_credentials = (environment.client_id + ':' + environment.client_secret).encodeBase64();
postman.setEnvironmentVariable("client_credentials", client_credentials);
environment.cloned_environment && (delete environment.cloned_environment);
var environmentObjClone = _.cloneDeep(environment);
postman.setEnvironmentVariable("cloned_environment", JSON.stringify(environmentObjClone));
Pre-Request Script for artist:
try {
var artist_id = _.sample(JSON.parse(environment.artists));
postman.setEnvironmentVariable("id", artist_id);
}
catch (e) {
console.log(e);
throw false;
}
JSON:
{
"id": "b2b45667-7ec9-4d5d-9e38-c976d181c2bd",
"name": "SpotifyGenV1.template1",
"values": [
{
"key": "artists",
"value": "[“2DaxqgrOhkeH0fpeiQq2f4”, “2ooIqOf4X2uz4mMptXCtie”]",
"enabled": true
},
{
"key": "N",
"value": "5",
"enabled": true
},
{
"key": "user_id",
"value": "marcz2007",
"enabled": true
},
{
"key": "country_code",
"value": "US",
"enabled": true
},
{
"key": "client_id",
"value": "744a1316f9374a27b7ec9bc7eabb0f92",
"enabled": true
},
{
"key": "client_secret",
"value": "---secret--",
"enabled": true
},
{
"key": "refresh_token",
"value": "AQAf0rvuNBo23wiIiyWQRfavFvx7JdTjvGYLufOBAM1ABtvXWvfqqo_I0IfhFAelTPIh8w2cscS4C1k8QLKOc1rqn18CjKJbmczfu1X-EfEFaWjcDbIPYGCIGZmbNZv5DgiJ9w",
"enabled": true
},
{
"key": "client_credentials",
"value": "NzQ0YTEzMTZmOTM3NGEyN2I3ZWM5YmM3ZWFiYjBmOTI6M2ZiNWM2MDBkODRhNDU1ODhmZTNiZWM4MTI5N2E4M2Y=",
"enabled": true
},
{
"key": "cloned_environment",
"value": "{\"artists\":\"[“2DaxqgrOhkeH0fpeiQq2f4”, “2ooIqOf4X2uz4mMptXCtie”]\",\"N\":\"5\",\"user_id\":\"marcz2007\",\"country_code\":\"US\",\"client_id\":\"744a1316f9374a27b7ec9bc7eabb0f92\",\"client_secret\":\"3fb5c600d84a45588fe3bec81297a83f\",\"refresh_token\":\"AQAf0rvuNBo23wiIiyWQRfavFvx7JdTjvGYLufOBAM1ABtvXWvfqqo_I0IfhFAelTPIh8w2cscS4C1k8QLKOc1rqn18CjKJbmczfu1X-EfEFaWjcDbIPYGCIGZmbNZv5DgiJ9w\",\"client_credentials\":\"NzQ0YTEzMTZmOTM3NGEyN2I3ZWM5YmM3ZWFiYjBmOTI6M2ZiNWM2MDBkODRhNDU1ODhmZTNiZWM4MTI5N2E4M2Y=\",\"authorization\":\"BQD6I914g3iIt3zs1lpZl7nriwNgkFNMuIjIPjEa6ElTZw_PEbx3ewZkb38zlhypR5BfuyXLUxdJ0WyZ1TWETMSPYpPwBk7Olf6E5J49Q67BhgFWp5A4HyxYHgXNO-56sbOGx1aszETJ24Q8uGfOizzsv9WhpVU2cuC8lJdA3K2aYqc0L-8JnmD0VIrQhwX0\",\"playlist_id\":\"0cfptAtDW6jHMeWauwQ13w\",\"artist_name\":\"Oasis\",\"artistID\":\"2DaxqgrOhkeH0fpeiQq2f4\",\"trackID\":\"4AKUOaCRcoKTFnVI9LtsrN\"}",
"enabled": true
},
{
"key": "authorization",
"value": "BQD6I914g3iIt3zs1lpZl7nriwNgkFNMuIjIPjEa6ElTZw_PEbx3ewZkb38zlhypR5BfuyXLUxdJ0WyZ1TWETMSPYpPwBk7Olf6E5J49Q67BhgFWp5A4HyxYHgXNO-56sbOGx1aszETJ24Q8uGfOizzsv9WhpVU2cuC8lJdA3K2aYqc0L-8JnmD0VIrQhwX0",
"enabled": true
},
{
"key": "playlist_id",
"value": "0cfptAtDW6jHMeWauwQ13w",
"enabled": true
},
{
"key": "artist_name",
"value": "Oasis",
"enabled": true
},
{
"key": "artist_id",
"value": "2DaxqgrOhkeH0fpeiQq2f4",
"enabled": true
},
],
"_postman_variable_scope": "environment",
"_postman_exported_at": "2019-07-28T12:45:10.195Z",
"_postman_exported_using": "Postman/7.3.4"
}
Steps to reproduce error: https://blog.getpostman./2016/11/09/generate-spotify-playlists-using-a-postman-collection/
I have been following the above tutorial for sending an API request to Spotify. I am successful in getting the authorisation codes, however, Postman has an error when running the collection for Spotify despite following the tutorial correctly.
From looking at the console, there is an error at the line shown below: Error message reads XPath runner/search already exists Error running scripts: JSONError | Unexpected token u in JSON at position 0 Error executing pre-request scripts for Get Artist Top Tracks: JSONError: Unexpected token u in JSON at position 0 Two others experienced the issue but they were never replied to. Any ideas how to fix this? I am new to API requests so any help would be muchly appreciated!
Pre request script for auth:
var client_credentials = (environment.client_id + ':' + environment.client_secret).encodeBase64();
postman.setEnvironmentVariable("client_credentials", client_credentials);
environment.cloned_environment && (delete environment.cloned_environment);
var environmentObjClone = _.cloneDeep(environment);
postman.setEnvironmentVariable("cloned_environment", JSON.stringify(environmentObjClone));
Pre-Request Script for artist:
try {
var artist_id = _.sample(JSON.parse(environment.artists));
postman.setEnvironmentVariable("id", artist_id);
}
catch (e) {
console.log(e);
throw false;
}
JSON:
{
"id": "b2b45667-7ec9-4d5d-9e38-c976d181c2bd",
"name": "SpotifyGenV1.template1",
"values": [
{
"key": "artists",
"value": "[“2DaxqgrOhkeH0fpeiQq2f4”, “2ooIqOf4X2uz4mMptXCtie”]",
"enabled": true
},
{
"key": "N",
"value": "5",
"enabled": true
},
{
"key": "user_id",
"value": "marcz2007",
"enabled": true
},
{
"key": "country_code",
"value": "US",
"enabled": true
},
{
"key": "client_id",
"value": "744a1316f9374a27b7ec9bc7eabb0f92",
"enabled": true
},
{
"key": "client_secret",
"value": "---secret--",
"enabled": true
},
{
"key": "refresh_token",
"value": "AQAf0rvuNBo23wiIiyWQRfavFvx7JdTjvGYLufOBAM1ABtvXWvfqqo_I0IfhFAelTPIh8w2cscS4C1k8QLKOc1rqn18CjKJbmczfu1X-EfEFaWjcDbIPYGCIGZmbNZv5DgiJ9w",
"enabled": true
},
{
"key": "client_credentials",
"value": "NzQ0YTEzMTZmOTM3NGEyN2I3ZWM5YmM3ZWFiYjBmOTI6M2ZiNWM2MDBkODRhNDU1ODhmZTNiZWM4MTI5N2E4M2Y=",
"enabled": true
},
{
"key": "cloned_environment",
"value": "{\"artists\":\"[“2DaxqgrOhkeH0fpeiQq2f4”, “2ooIqOf4X2uz4mMptXCtie”]\",\"N\":\"5\",\"user_id\":\"marcz2007\",\"country_code\":\"US\",\"client_id\":\"744a1316f9374a27b7ec9bc7eabb0f92\",\"client_secret\":\"3fb5c600d84a45588fe3bec81297a83f\",\"refresh_token\":\"AQAf0rvuNBo23wiIiyWQRfavFvx7JdTjvGYLufOBAM1ABtvXWvfqqo_I0IfhFAelTPIh8w2cscS4C1k8QLKOc1rqn18CjKJbmczfu1X-EfEFaWjcDbIPYGCIGZmbNZv5DgiJ9w\",\"client_credentials\":\"NzQ0YTEzMTZmOTM3NGEyN2I3ZWM5YmM3ZWFiYjBmOTI6M2ZiNWM2MDBkODRhNDU1ODhmZTNiZWM4MTI5N2E4M2Y=\",\"authorization\":\"BQD6I914g3iIt3zs1lpZl7nriwNgkFNMuIjIPjEa6ElTZw_PEbx3ewZkb38zlhypR5BfuyXLUxdJ0WyZ1TWETMSPYpPwBk7Olf6E5J49Q67BhgFWp5A4HyxYHgXNO-56sbOGx1aszETJ24Q8uGfOizzsv9WhpVU2cuC8lJdA3K2aYqc0L-8JnmD0VIrQhwX0\",\"playlist_id\":\"0cfptAtDW6jHMeWauwQ13w\",\"artist_name\":\"Oasis\",\"artistID\":\"2DaxqgrOhkeH0fpeiQq2f4\",\"trackID\":\"4AKUOaCRcoKTFnVI9LtsrN\"}",
"enabled": true
},
{
"key": "authorization",
"value": "BQD6I914g3iIt3zs1lpZl7nriwNgkFNMuIjIPjEa6ElTZw_PEbx3ewZkb38zlhypR5BfuyXLUxdJ0WyZ1TWETMSPYpPwBk7Olf6E5J49Q67BhgFWp5A4HyxYHgXNO-56sbOGx1aszETJ24Q8uGfOizzsv9WhpVU2cuC8lJdA3K2aYqc0L-8JnmD0VIrQhwX0",
"enabled": true
},
{
"key": "playlist_id",
"value": "0cfptAtDW6jHMeWauwQ13w",
"enabled": true
},
{
"key": "artist_name",
"value": "Oasis",
"enabled": true
},
{
"key": "artist_id",
"value": "2DaxqgrOhkeH0fpeiQq2f4",
"enabled": true
},
],
"_postman_variable_scope": "environment",
"_postman_exported_at": "2019-07-28T12:45:10.195Z",
"_postman_exported_using": "Postman/7.3.4"
}
- As you're getting a 400 error is probably something wrong in your code. Can you share an image of what you have in your pre-request script for those requests. The blog was from 3 years ago so there is also a possibility that Spotify has also change since then. I would suspect from that error it's to do with parsing the request body. – Danny Dainton Commented Jul 28, 2019 at 11:15
- Yes that could be it, I've editted in the pre request scripts above (which was empty for the api.spotify./v1/artists{{id}}/related-artists one). Anything catch your eye as being wrong here? – marcz2007 Commented Jul 28, 2019 at 13:12
- I'm having the same issue and what's really weird is that this same call used to work. I even did a demo on it and havent' changed the code since. And yes, I am set to the same environment as before. – Dan Csharpster Commented Feb 6, 2022 at 16:01
2 Answers
Reset to default 2I haven't read your question in detail, but
JSONError: Unexpected token u in JSON at position 0 is the typical
error message when you try to GET a Postman variable that doesn't
exist.
(Because of misspelling or whatever.)
Closely related is the error message
JSONError: Unexpected token '<' at 1:1<!doctype html>^ which
typically occurs when you try to request a URL that doesn't exist.
A missing environment variable is one cause. Also ensure that the value is present in the Initial Value section and not just the Current Value
Another is accidently leaving a return character in a variable which will give the following
unexpected token \n in JSON...
Remove the return character (postman UI shows it as the return symbol and not the character itself) and it resolves this issue.
本文标签：
版权声明：本文标题：javascript - Postman error when running tests: JSONError: Unexpected token u in JSON at position 0 - Stack Overflow 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.betaflare.com/web/1741923036a2405119.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。
发表评论