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57 | 57 | <div class="row links"> |
58 | 58 |
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78 | 78 |
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@@ -190,7 +190,7 @@ <h3 id="write-our-records-to-kafka" class="section"><a class="anchor-link left" |
190 | 190 | </span><span class="type-name">ClientId</span><span>(</span><span class="string-literal">"producer-example"</span><span>) |
191 | 191 | ) |
192 | 192 | </span><span class="comment">// producer: Resource[IO, ProducerApi[IO, org.apache.avro.generic.GenericRecord, org.apache.avro.generic.GenericRecord]] = Allocate( |
193 | | -// resource = cats.effect.kernel.Resource$$$Lambda$12057/0x00000001030fb040@3eac6a70 |
| 193 | +// resource = cats.effect.kernel.Resource$$$Lambda$10766/0x0000000102d62840@159872db |
194 | 194 | // )</span></code></pre> |
195 | 195 | <p>And we'll define some customer records to be written:</p> |
196 | 196 | <pre><code class="nohighlight"><span class="keyword">import</span><span> </span><span class="identifier">org</span><span>.</span><span class="identifier">apache</span><span>.</span><span class="identifier">kafka</span><span>.</span><span class="identifier">clients</span><span>.</span><span class="identifier">producer</span><span>.</span><span class="type-name">ProducerRecord</span><span> |
@@ -221,16 +221,16 @@ <h3 id="write-our-records-to-kafka" class="section"><a class="anchor-link left" |
221 | 221 | <h4 id="writing-typed-records-with-an-avro4s-producer" class="section"><a class="anchor-link left" href="#writing-typed-records-with-an-avro4s-producer"><i class="icofont-laika link"></i></a>Writing typed records with an Avro4s producer</h4> |
222 | 222 | <p>Turning a generic producer into a typed producer is simple. We first ensure that <code>com.sksamuel.avro4s.RecordFormat</code> instances for our data are in scope:</p> |
223 | 223 | <pre class="keep-together pdf epub"><code class="nohighlight"><span class="keyword">implicit</span><span> </span><span class="keyword">val</span><span> </span><span class="type-name">CustomerRecordFormat</span><span> = </span><span class="identifier">com</span><span>.</span><span class="identifier">sksamuel</span><span>.</span><span class="identifier">avro4s</span><span>.</span><span class="type-name">RecordFormat</span><span>[</span><span class="type-name">Customer</span><span>] |
224 | | -</span><span class="comment">// CustomerRecordFormat: com.sksamuel.avro4s.RecordFormat[Customer] = com.sksamuel.avro4s.RecordFormat$$anon$1@4e1de48d |
| 224 | +</span><span class="comment">// CustomerRecordFormat: com.sksamuel.avro4s.RecordFormat[Customer] = com.sksamuel.avro4s.RecordFormat$$anon$1@271a0f46 |
225 | 225 | </span><span class="keyword">implicit</span><span> </span><span class="keyword">val</span><span> </span><span class="type-name">CustomerIdRecordFormat</span><span> = </span><span class="identifier">com</span><span>.</span><span class="identifier">sksamuel</span><span>.</span><span class="identifier">avro4s</span><span>.</span><span class="type-name">RecordFormat</span><span>[</span><span class="type-name">CustomerId</span><span>] |
226 | | -</span><span class="comment">// CustomerIdRecordFormat: com.sksamuel.avro4s.RecordFormat[CustomerId] = com.sksamuel.avro4s.RecordFormat$$anon$1@252d7395</span></code></pre> |
| 226 | +</span><span class="comment">// CustomerIdRecordFormat: com.sksamuel.avro4s.RecordFormat[CustomerId] = com.sksamuel.avro4s.RecordFormat$$anon$1@52a7f1fa</span></code></pre> |
227 | 227 | <p>And with those implicits in scope, we can create our producer:</p> |
228 | 228 | <pre class="keep-together pdf epub"><code class="nohighlight"><span class="keyword">val</span><span> </span><span class="identifier">avro4sProducer</span><span> = </span><span class="identifier">producer</span><span>.</span><span class="identifier">map</span><span>(</span><span class="identifier">_</span><span>.</span><span class="identifier">toAvro4s</span><span>[</span><span class="type-name">CustomerId</span><span>, </span><span class="type-name">Customer</span><span>]) |
229 | 229 | </span><span class="comment">// avro4sProducer: Resource[IO, ProducerApi[[A]IO[A], CustomerId, Customer]] = Bind( |
230 | 230 | // source = Allocate( |
231 | | -// resource = cats.effect.kernel.Resource$$$Lambda$12057/0x00000001030fb040@3eac6a70 |
| 231 | +// resource = cats.effect.kernel.Resource$$$Lambda$10766/0x0000000102d62840@159872db |
232 | 232 | // ), |
233 | | -// fs = cats.effect.kernel.Resource$$Lambda$12185/0x000000010323b840@23914bce |
| 233 | +// fs = cats.effect.kernel.Resource$$Lambda$10894/0x0000000102e6e840@17ef76c3 |
234 | 234 | // )</span></code></pre> |
235 | 235 | <p>We can now write our typed customer records successfully!</p> |
236 | 236 | <pre class="keep-together pdf epub"><code class="nohighlight"><span class="keyword">import</span><span> </span><span class="identifier">cats</span><span>.</span><span class="identifier">effect</span><span>.</span><span class="identifier">unsafe</span><span>.</span><span class="identifier">implicits</span><span>.</span><span class="identifier">global</span><span> |
@@ -259,11 +259,11 @@ <h3 id="read-our-records-from-kafka" class="section"><a class="anchor-link left" |
259 | 259 | </span><span class="comment">// consumer: Resource[IO, ConsumerApi[IO, CustomerId, Customer]] = Bind( |
260 | 260 | // source = Bind( |
261 | 261 | // source = Allocate( |
262 | | -// resource = cats.effect.kernel.Resource$$$Lambda$12057/0x00000001030fb040@c6f2ba5 |
| 262 | +// resource = cats.effect.kernel.Resource$$$Lambda$10766/0x0000000102d62840@724a41a |
263 | 263 | // ), |
264 | | -// fs = com.banno.kafka.consumer.ConsumerApi$Avro$$$Lambda$12188/0x000000010323d040@281e6984 |
| 264 | +// fs = com.banno.kafka.consumer.ConsumerApi$Avro$$$Lambda$10897/0x0000000102e70840@1d8c3b39 |
265 | 265 | // ), |
266 | | -// fs = cats.effect.kernel.Resource$$Lambda$12185/0x000000010323b840@2c602235 |
| 266 | +// fs = cats.effect.kernel.Resource$$Lambda$10894/0x0000000102e6e840@2306a4f |
267 | 267 | // )</span></code></pre> |
268 | 268 | <p>With our Kafka consumer in hand, we'll assign to our consumer our topic partition, with no offsets, so that it starts reading from the first record, and read a stream of records from our Kafka topic:</p> |
269 | 269 | <pre class="keep-together pdf epub"><code class="nohighlight"><span class="keyword">import</span><span> </span><span class="identifier">org</span><span>.</span><span class="identifier">apache</span><span>.</span><span class="identifier">kafka</span><span>.</span><span class="identifier">common</span><span>.</span><span class="type-name">TopicPartition</span><span> |
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