calling multiple query parameters in spring rest template

Question

I need to pass the multiple value for a single query parameter in spring rest template , the query parameter is status and it values can be in progress,completed,rejected so I have pass them as values separated by comma , please advise is it the correct approach

HttpEntitiy<String> entity = httpEntitiyService.buildHttpEntity(null;"track status");
String url ="https://example/api/2/progress"

UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url)
.querParam("status","inprogress,completed,rejected"); // please advise it is the correct approach

It is entirely up to the server to decide what the status value is, so we can't help with that, since we don't know the server. — Andreas
– Andreas, Commented Mar 27, 2021 at 3:30

Max Voisard · Accepted Answer · 2021-03-27 03:36:38Z

3

I would use the queryParams() method, which is specified as queryParams in the interface UriBuilder and defined as:

public UriComponentsBuilder queryParams(MultiValueMap<java.lang.String,java.lang.String> params)

In your case, you can do:

MultiValueMap<String, String> myParams = new LinkedMultiValueMap<String, String>();
myParams.add("status", "inprogress");
myParams.add("status", "completed");
myParams.add("status", "rejected");

And implement it:

UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url)
        .queryParams(myParams)
        .build()
        .toUriString();

You can also implement in a similar manner, except we just use the MultiValueMap:

UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url)
        .path("")
        .query("status={status}")
        .buildAndExpand(myParams)
        .toString();

answered Mar 27, 2021 at 3:36

Max Voisard

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2 Comments

asderfgh Over a year ago

what about if I want to add one more query parameter that if of integer type let say page_size having value of 200 integer type

Max Voisard Over a year ago

@asderfgh It wouldn't matter. UriComponentsBuilder automatically encodes the parameters for you, so you could just send it as a string.

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