403 when using spring boot, but works well with postman

Question

Im making api call with postman on url:

https://cex.io/api/order_book/BTC/USD

plain GET no headers no params no nothing. But the same with java:

RestTemplate rt = new RestTemplate();
rt.getForObject("https://cex.io/api/order_book/BTC/USD", String.class);

gets me 403. where is the problem?

What is the returned HTTP code with Postman ? Should be the same. — cactuschibre, Nov 13 '17 at 20:28
From their [api documentation](https://cex.io/cex-api) - they do have rate limiting in place, limiting you to 600 requests per 10 minutes. Might be you exceeded that during testing. — zefixlluja, Nov 13 '17 at 20:30

score 10 · Accepted Answer · answered Nov 13 '17 at 21:14

10

RestTemplate sets "User-Agent: Java_version" header, and it seems the site you are trying to query denies access with that user-agent.

You can explicitly set a user-agent instead of the default one like:

    HttpHeaders headers = new HttpHeaders();
    headers.set("User-agent", "SomeUserAgent");
    HttpEntity<String> entity = new HttpEntity<String>(headers);

    RestTemplate rt = new RestTemplate();
    String result = rt.exchange("https://cex.io/api/order_book/BTC/USD", HttpMethod.GET, entity, String.class).getBody();

answered Nov 13 '17 at 21:14

helospark

1,420
9
12

This should be accepted as the answer – alainlompo Nov 13 '17 at 21:39
yep, this was the problem! – filemonczyk Nov 14 '17 at 15:58

403 when using spring boot, but works well with postman

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