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WebClientを用いての外部APIの呼び出し方

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Java SpringBoot内でのWebClientを用いての外部APIの呼び出し方

※共通は各通信の場合で呼ばれているメソッド

(共通)

WebClientInfo.java
    public WebClient webClient;

    public WebClientInfo(WebClient.Builder webClientBuilder) {
        this.webClient = webClientBuilder.baseUrl("http://localhost:8082").build();
    }

(GET通信の場合) ※クエリパラメータ方式の場合

WebClientInfo.java

    public 戻りの型 メソッド名(値1, 値2) {
        return this.webClient.get()
                .uri(uriBuilder -> uriBuilder
                        .path("/【URL】")
                        .queryParam("【パラメータ1】", 値1)
                        .queryParam("【パラメータ2】", 値2)
                        .build())
                .retrieve()
                .bodyToMono(戻りの型 .class).block();
    }
例)
    public ShukanTalentJoho getShukanTalentJoho(Integer nentsuki, Integer shu, String talentName) {
        return this.webClient.get()
                .uri(uriBuilder -> uriBuilder
                        .path("/shukanTalentJoho")
                        .queryParam("nentsuki", nentsuki)
                        .queryParam("shu", shu)
                        .queryParam("talentName", talentName)
                        .build())
                .retrieve()
                .bodyToMono(ShukanTalentJoho.class).block();
    }

(GET通信の場合) ※パスパラメータ方式の場合

WebClientInfo.java
    public 戻りの型 メソッド名(値1) {
        return this.webClient.get()
                .uri(uriBuilder -> uriBuilder
                        .path("/【URL】/{【パラメータ1】}")
                        .build(値1))
                .retrieve()
                .bodyToMono(戻りの型.class).block();
    }
例)
    public KbnMasterInfo getKbnMaster(String genreIds) {
        return this.webClient.get()
                .uri(uriBuilder -> uriBuilder
                        .path("/kbnMaster/{genreIds}")
                        .build(genreIds))
                .retrieve()
                .bodyToMono(KbnMasterInfo.class).block();
    }

(POST通信の場合) 

WebClientInfo.java
    public 戻りの型 メソッド名(値1) {
        return this.webClient.post()
	    		.uri("/【URL】")
	    	    .body(Mono.just(値1), 値1の型.class)
	    	    .accept(MediaType.APPLICATION_JSON)
	    	    .retrieve()
	    	    .bodyToMono(戻りの型.class).block();
    }
例)
    public TalentTorokuKoshinBFF postTalentTorokuKoshin(MTalent mTalent) {
        return this.webClient.post()
	    		.uri("/talentTorokuKoshin")
	    	    .body(Mono.just(mTalent), MTalent.class)
	    	    .accept(MediaType.APPLICATION_JSON)
	    	    .retrieve()
	    	    .bodyToMono(TalentTorokuKoshinBFF.class).block();
    }

上記が各通信方式となります。

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