Veja Como eu Criei Um Assistente de Consultas Processuais Com IA no N8n — Transcript

Full transcript

1. 0:00In today's video, I'm going to show you
2. 0:03how we can build an AI agent that looks
3. 0:05up legal cases based on the case number
4. 0:08by accessing a public API and helps you
5. 0:10analyze them by sending you a summary
6. 0:12of the case, okay? And chatting with
7. 0:16you about the matters regarding that
8. 0:18case. So, if this is a topic that
9. 0:21interests you, stay until the end of
10. 0:22the video, and I guarantee you'll like
11. 0:24it. Today will be a slightly shorter
12. 0:27video, but it will be a very useful one
13. 0:29. For those in the legal field who have
14. 0:31to deal with cases and constantly look
15. 0:33up this kind of thing, you'll like the
16. 0:35video and find it interesting, because
17. 0:38I think it's a flow that's very simple
18. 0:40but can also help you a lot in your
19. 0:41day-to-day, okay? So, without further
20. 0:44ado, let's get to what matters, let's
21. 0:46go to the computer screen. So, alright,
22. 0:48here on my screen you can see the agent
23. 0:50, it's already built, okay? A very
24. 0:53small agent, where it's connected to
25. 0:56just one tool, but it's interesting
26. 0:59because even though it's simple, it can
27. 1:02be very useful, okay? Like I mentioned,
28. 1:06for those who work with this daily and
29. 1:08have to keep looking up cases all the
30. 1:11time. And this could be a very
31. 1:13interesting flow for you, okay? That
32. 1:15will help you save a good amount of
33. 1:18time, okay? All right? The flow of this
34. 1:21agent is very simple. Basically, we'll
35. 1:24start the flow with the chat trigger
36. 1:26from n8n itself, okay? We'll connect
37. 1:30our agent to an AI model, right? In
38. 1:33this case, I'm using GPT itself, I'm
39. 1:36using the 4o model, a memory, and a
40. 1:39tool, an HTTP request tool, because
41. 1:42we're going to query a public API, okay
42. 1:45? And to retrieve this case information
43. 1:49. Got it? So, before we build this
44. 1:52agent step-by-step, let's take a look
45. 1:54at this API so you can understand more
46. 1:57or less how it works, okay? And we'll
47. 2:00also perform some basic tests using
48. 2:04Postman, okay? To test these requests
49. 2:08to this API. Got it? So here we can
50. 2:13search for DataJud, okay? It's possible
51. 2:16that some of you already know this API.
52. 2:20Alright? Here we can take a look, right
53. 2:23, at the public API, have a read here
54. 2:26to understand how it works. The DataJud
55. 2:29public API is a powerful tool that
56. 2:31offers public access to metadata from
57. 2:33legal cases throughout Brazil. The data
58. 2:36made available through the API comes
59. 2:38from the national judiciary database,
60. 2:40Datajud. They strictly adhere to the
61. 2:43criteria stipulated by ordinance
62. 2:45Tananã Tananã, while simultaneously
63. 2:47ensuring the protection of confidential
64. 2:49cases and the information of the
65. 2:51parties involved. So, basically, it
66. 2:54will provide us with case data
67. 2:55throughout the entire Brazilian
68. 2:57territory, right? You were able to
69. 2:59understand this part, right? I hope so.
70. 3:03We can access this link here, where it
71. 3:07will take us directly to the public API
72. 3:11documentation, okay? So, we can close
73. 3:15that other tab, and here it says I
74. 3:17think more or less the same thing we
75. 3:19already read, okay? Through this API,
76. 3:23developers have access to information
77. 3:25on case headers and movements related
78. 3:27to judicial proceedings in all
79. 3:29instances of the Brazilian judiciary.
80. 3:32All good? Here we have some terms of
81. 3:35use, which I recommend you read, but if
82. 3:37you just want to run some small tests,
83. 3:39that's fine, I don't think there's any
84. 3:42problem. And access. Here we will
85. 3:47understand how we are going to hit the
86. 3:48endpoints of this API, okay? How will
87. 3:51we be able to access it to successfully
88. 3:53return the data we want? The Datajud
89. 3:57public API, the tool that provides
90. 3:59public access. The same thing we
91. 4:01already read. API key here.
92. 4:04Authentication for the Datajud public
93. 4:06API is performed using a public key,
94. 4:08generated and provided by the DPJ CNJ.
95. 4:12The current key is always accessible in
96. 4:14this section of the Wiki. So, basically
97. 4:16, we will use this key here. It is a
98. 4:19public key that anyone can come here
99. 4:22and grab, okay? So, basically, how are
100. 4:25we going to do it, to use this key,
101. 4:28okay? We will pass an authorization key
102. 4:33in the headers of our request, and the
103. 4:35value will be "API Key" followed by the
104. 4:38key, okay? So, basically, this is how
105. 4:43we will hit our requests. To start, we
106. 4:47can already configure these headers in
107. 4:49the request we are going to make. I
108. 4:52have Postman open here already, and I
109. 4:55have two endpoints separated here. No,
110. 4:58two endpoints, it's the same place we
111. 4:59are going to hit. We are just going to
112. 5:00change the method. In one we will send
113. 5:02the body and in the other we won't,
114. 5:03okay? This first one here, what is this
115. 5:07GET for? We are just going to hit the
116. 5:10API, okay? In a specific endpoint, and
117. 5:13it will return some cases for us. So
118. 5:15let's run this test here, okay? But
119. 5:18first we need to know the URL, right? I
120. 5:22forgot to show you that. We can go here
121. 5:26to endpoints, and what we'll use is
122. 5:28superior courts and superior court of
123. 5:30justice, okay? STJ. But you're not
124. 5:35going to click here, okay? We're going
125. 5:38to copy this link, all right? We can go
126. 5:42back here to Postman and we can paste
127. 5:45it here in the URL, okay? And here in
128. 5:48headers, we'll pass an authorization
129. 5:51and we can go back here to access and
130. 5:54copy all of this. Got it? We pass it
131. 5:59here in value and we can send this
132. 6:01request now. You saw that the status
133. 6:04code 200 returned everything correctly.
134. 6:06It will return a ton of lines here,
135. 6:08okay? About how many? 1,000 lines. I
136. 6:12thought more lines would come, but
137. 6:14that's fine. If we search by case
138. 6:16number, we'll be able to see that we
139. 6:19can find 10 cases here, okay? 10
140. 6:22different case numbers, and each case
141. 6:25has some specific information. Uh, for
142. 6:28example, we have the class, we have
143. 6:31this class name which, if I'm not
144. 6:34mistaken, is the description of the
145. 6:36case class, uh, format, the court, the
146. 6:39last update date, the movements of this
147. 6:42case, okay? So here we can check all of
148. 6:45that. Any judge, all right? Here it's
149. 6:53basically that, there are movements and
150. 6:55also the subjects of the case, okay? So
151. 6:57we will have access to all this data.
152. 7:00Why am I hitting this endpoint?
153. 7:01Basically, I just hit it because I want
154. 7:04to get a specific case, a number of a
155. 7:06specific case so we can test, okay? So
156. 7:08I'll take this case right here, got it?
157. 7:11And what we're going to do is hit this
158. 7:13endpoint by sending a body, okay? And
159. 7:15in this body, we'll pass the case
160. 7:17number. By passing the case number, it
161. 7:19will return to us only the data for
162. 7:21that specific case. And that is what we
163. 7:23want. Our chatbot works like this.
164. 7:27Basically, we'll have access to a case
165. 7:29number and we want to know its
166. 7:30information. We want a detailed summary
167. 7:34of this case. So we will send the case
168. 7:37number to our agent so it can query the
169. 7:39API. Then it will return the response.
170. 7:43The response will basically have a
171. 7:44summary, a small analysis of this case,
172. 7:46okay? Got it? So we can copy this URL
173. 7:50here, okay? We can go over to the
174. 7:52headers here, it will be the same thing
175. 7:55. Authorization. And here we can copy
176. 7:59this as well, okay? All good? Now here
177. 8:03in body we will select raw, okay? This
178. 8:05is a JSON. And we can go back here. If
179. 8:10we take a look at these examples. we
180. 8:12can see here, okay? Uh, it even
181. 8:15mentions here, it recommends Postman.
182. 8:18Ta-da, we're going to hit it with the
183. 8:20post method, right? We are sending a
184. 8:23body. And basically here we will use
185. 8:27this example body, okay? This body that
186. 8:30they left as an example here. So, we
187. 8:32can copy this and we can paste it right
188. 8:34here, okay? The only difference is that
189. 8:37we will have to replace this case
190. 8:39number that is already in the example
191. 8:41and put the one we just got, okay? So
192. 8:44I'm going to grab that. If you have any
193. 8:47number, if you have access to any case
194. 8:49number there, feel free to test it, put
195. 8:51it in and send the request, okay? Got
196. 8:54it? It has to be in this format. So
197. 8:57here we can hit send and it's OK,
198. 8:59everything is just right. Here you will
199. 9:02see that it returns many fewer lines,
200. 9:04right? about a hundred and something.
201. 9:07So it's just the information for this
202. 9:09specific case, alright? So, with the
203. 9:12API tests done via Postman, we can go
204. 9:14to n8n and start to understand how this
205. 9:17flow works, and we'll also build it
206. 9:19from scratch so you understand it
207. 9:21step-by-step, okay? So I'll minimize my
208. 9:25Postman here, alright? Here too, if you
209. 9:28want, you can take a look at the other
210. 9:30examples, okay? There are other ways
211. 9:32for you to query the API, there's
212. 9:34something else here, a data glossary,
213. 9:35okay? So it has the data that will
214. 9:38return in the response of the request
215. 9:41we sent, okay? So, court, case number,
216. 9:44filing date, degree, secrecy level, uh,
217. 9:47class, name, oh, the class name I had
218. 9:50mentioned to you, description of the
219. 9:52procedural class. So, it explains each
220. 9:56element here, okay, of the response you
221. 9:59might receive. final. There are a few
222. 10:03more little things here. Feel free to
223. 10:05read through all this documentation
224. 10:07here so you can understand how it works
225. 10:08, okay? Eh, so, with all that said,
226. 10:10with that explained, let's go to n8n,
227. 10:12okay? Let's go back there, because
228. 10:14that's where the magic really happens.
229. 10:16So, very simple. We have a chat trigger
230. 10:19, right? And here we have our agent
231. 10:23itself, where we will pass a small
232. 10:26prompt, okay? Explaining to it what it
233. 10:29has to do. We pass the chat input, it
234. 10:31will consult the tool, perform the
235. 10:34query, and return the answer to us,
236. 10:36okay? Basically, if we were to build
237. 10:40this from scratch, we would pick a
238. 10:43trigger. Where is it? We can't. Let me
239. 10:50do the following, let me delete this.
240. 10:55And here we will select a chat on chat
241. 10:57message, okay? It's no secret, this
242. 11:00isn't news to anyone anymore, right? So
243. 11:04you can select it, we can connect it to
244. 11:06our agent, okay? But in this case, I
245. 11:08will pull it down here. Advanced AI. AI
246. 11:13agent. Ah, where is it? It pulled it up
247. 11:18there, but that's no problem. Here I
248. 11:21will copy the prompt, okay? Just to
249. 11:24avoid wasting time, but I will read it
250. 11:26with you so you understand. I will pass
251. 11:29a system message here just explaining
252. 11:31that it is a very useful and
253. 11:32intelligent legal agent, okay? Basic
254. 11:35stuff here. The main prompt we can
255. 11:39actually define here as defined below,
256. 11:44okay? Expression. We can open this
257. 11:48little screen here and copy the prompt.
258. 11:50You should talk to the user about cases
259. 11:52; when the user asks you to check a
260. 11:54case, you must identify the provided
261. 11:55number and consult the Tool, which we
262. 11:57have named for this Tool. retrieve
263. 11:59information about the case in question.
264. 12:02If the user asks for a check but didn't
265. 12:04provide the number, ask them to do so
266. 12:07so you can perform the search correctly
267. 12:09. When you find the case, perform an
268. 12:12analysis of the content the API returns
269. 12:14and synthesize all the content of the
270. 12:16case in question. Use a friendly, nice
271. 12:19tone, with a touch of humor, okay? You
272. 12:21can define whatever you want here. And
273. 12:23next, for the user input, you pass a
274. 12:25JSON chat input here, got it? So that
275. 12:28whatever you type in the previous
276. 12:30trigger module, it will send over here.
277. 12:34All good? There's no secret here,
278. 12:36there's nothing else to do, okay?
279. 12:38Basically, it's just the prompt. From
280. 12:41here we can pull our model, okay? And
281. 12:44here we can pull the OpenAI chat model
282. 12:47or whatever you want to use, okay? You
283. 12:50can set up your account with your
284. 12:54correct credentials. Here I will use
285. 13:00the 4o. I'm not sure if this is the new
286. 13:07version of N8n, but that's fine. Here
287. 13:10it gives a huge list and we can't
288. 13:12search, it closes, but that's fine.
289. 13:16Configure the model you want to use
290. 13:18here, and the memory, okay? Window
291. 13:21buffer memory is quite traditional,
292. 13:24simple to configure. And our tool,
293. 13:28finally, right, so you can see that
294. 13:31it's a ridiculously easy agent to
295. 13:34configure. It's an HTTP request tool.
296. 13:38So here we can provide a description. I
297. 13:41have already written the description
298. 13:42for this tool. Copy this here, okay?
299. 13:47Great. Uh, yeah. Great. I'm just going
300. 13:55to quickly copy this URL, okay? So
301. 13:58let's configure it here. The method we
302. 14:02are going to use will be a POST. Got it
303. 14:04? For the URL, we provide the correct
304. 14:08URL we used a moment ago in Postman.
305. 14:13Here we can select sender, okay? You
306. 14:16can activate this here. Uh, it can be
307. 14:19in these fields below. We will type
308. 14:23authorization, okay? Here we can select
309. 14:28using field below. And here we provide
310. 14:31the value, okay? Let me go back here to
311. 14:34Postman in headers. Let's copy this
312. 14:37here. Go back here. Provide the value.
313. 14:40Remembering to copy this API that is in
314. 14:43front of the key, okay? Send. Here I
315. 14:48will, we will use a JSON, okay? So, use
316. 14:51JSON below. And here we will use this
317. 14:55same body that we used here, okay? With
318. 15:01a single difference here in the process
319. 15:04number, what are we going to use? If
320. 15:08you look here at the top, if I'm not
321. 15:11mistaken, it's placeholder. For any
322. 15:15part of the request to be filled by the
323. 15:17model. So, we can use this syntax here
324. 15:21inside braces where we will put a like
325. 15:26it's a variable name, okay? Here it's
326. 15:30placeholder. So we will put here the
327. 15:32process number, okay? Process number.
328. 15:39I'll even copy this so there are no
329. 15:41mistakes. And down here we will put in
330. 15:45placeholder definitions, right? We will
331. 15:48set a placeholder. We can put its name,
332. 15:50okay? Which is the same one we put here
333. 15:52between this pair of braces. And we
334. 15:54will provide a description for this
335. 15:56placeholder. I will again copy this
336. 15:58description that I've already written
337. 16:01here. So you provide a little
338. 16:06description for this placeholder so we
339. 16:08understand what it needs to fill in
340. 16:10there, okay? So it's the process number
341. 16:13you wish to consult, which you can set
342. 16:15as a string, okay? And that's it. Now
343. 16:19on to the testing phase. Very simple,
344. 16:21right? So let's open a chat here and
345. 16:24grab a case with a different number.
346. 16:28Let's pick, I don't know, seven. Uh,
347. 16:35first let's say hello, right, to test
348. 16:38its response. Oh, hello. How can I help
349. 16:44you today? If you need any case
350. 16:46consultation or have questions about a
351. 16:48legal matter, I'm here to help. So, I'd
352. 16:51like you to summarize the following
353. 16:57case. We passed it a different case.
354. 17:02Let's see if it works. Apparently it
355. 17:05worked. The API returned a response
356. 17:09here. Done. Sure. Let's take a look.
357. 17:15This is an ordinary appeal in habeas
358. 17:17corpus registered at the STJ. It is
359. 17:21completely electronic because we are,
360. 17:24right? The action was filed on November
361. 17:2711, 2024. Responsible body, office of
362. 17:30Minister Sebastião Reis Júnior.
363. 17:33Alright. Main case movements.
364. 17:36Distribution occurred, it was done by
365. 17:38lottery. Conclusion for decision. Right
366. 17:41after that, the case was set for
367. 17:42decision on the same day. Issuance of
368. 17:44documents and petitions. There were
369. 17:48several, including merit opinions from
370. 17:50the Public Prosecutor's Office and
371. 17:52other important petitions. Alright? So
372. 17:55it gave the main movements of this case
373. 17:57here, right? What was going on?
374. 18:01Subjects involved, drug trafficking and
375. 18:04related conduct, and provisional
376. 18:06release. So here was a very simple
377. 18:08little response, right? We are going to
378. 18:10check other cases here to test. And
379. 18:14there is a judicial journey with many
380. 18:16emotions and documents flying
381. 18:17everywhere, virtually, of course. If
382. 18:19you need any more details or have other
383. 18:21questions, I am here. So, as you could
384. 18:24see, it responded very well, right?
385. 18:25Basically, it synthesized this case
386. 18:28that the API returned to it. And let's
387. 18:31test two more cases here, okay? Just so
388. 18:33we don't have any doubts or anything
389. 18:38left. Take this second one here. Copy
390. 18:41this number now. This one. Let's see.
391. 18:52It hit the tool. We can verify the logs
392. 18:55. The API returned the response. I
393. 18:59think this one might be a little bigger
394. 19:00than the other. or not? Uh,
395. 19:04distribution, it was distributed on
396. 19:07December 19, 2024. On the same day, it
397. 19:11was forwarded for decision. Alright.
398. 19:15Alright, done. This case is supervised
399. 19:21by the presidency of the STJ and its
400. 19:24last update was quite recent, March 10,
401. 19:262025. It seems our dear 13th salary is
402. 19:30causing quite a stir in the courts. If
403. 19:32you need more information and have any
404. 19:33questions, I will be happy to help.
405. 19:36Alright? Now, finally, let's consult
406. 19:38one more case, right, so we can see the
407. 19:40response it will return. Let's pick
408. 19:42five. Let's wait. Pretty fast, right?
409. 19:59His, his answer. Great. And this is an
410. 20:06interlocutory appeal of a special
411. 20:07appeal. It is entirely electronic,
412. 20:09great for saving some trees. Uh, main
413. 20:12updates. Distribution, September 10,
414. 20:15'24, remittance for redistribution. Ah,
415. 20:19receipts were recorded on the 3rd,
416. 20:21September 23, 2024. Conclusion for
417. 20:25decision. Matters involved. Violation
418. 20:27of administrative principles. Burden of
419. 20:30proof. Who has the job of proving what?
420. 20:33Uh, I don't know much about law, okay?
421. 20:35I'm just reading here. So, for those
422. 20:37who understand, cool? Ah, obligation to
423. 20:40do, or not to do. Someone being ordered
424. 20:42to take actions or inaction. Damage to
425. 20:46the treasury and illicit enrichment.
426. 20:49This touches the government's wallet
427. 20:51and perhaps others 'too. Great.
428. 20:54Minister Afrânio Vilela. This case is
429. 20:59full of discussions about
430. 21:01administrative principles,
431. 21:03responsibility, and even some complex
432. 21:06financial issues. Cool, right? So, as
433. 21:10you could see, it, it responds very
434. 21:13well, okay? So, if you need to consult
435. 21:16cases all the time or you, I don't know
436. 21:18, saw a case but don't remember exactly
437. 21:20what it's about, if you put it here,
438. 21:22you'll get a quick summary of this case
439. 21:24. You can ask it to summarize even more
440. 21:27or provide even more details. So, all
441. 21:30of this you can specify in your prompt,
442. 21:32okay? Any specific little detail or
443. 21:34some way of responding or let's see
444. 21:37some response structure that you want
445. 21:40the agent to use, you can send it to us
446. 21:43, okay, in the prompt itself and it
447. 21:45will know how to answer you in the best
448. 21:48possible way for you, okay? So, if you
449. 21:51are in the field, if you are a lawyer
450. 21:53or whatever it is in the legal area, uh
451. 21:55, you understand more about the subject
452. 21:57, you can specify all of that in your
453. 21:59prompt, okay? The way you want it to
454. 22:01respond. You can mix this with perhaps
455. 22:04a few more tools. If you want to use
456. 22:07some knowledge base for your agent to
457. 22:09use, you can also configure that type
458. 22:11of flow. We can configure this on
459. 22:16Telegram and keep the scenario active
460. 22:18so you have an agent always available
461. 22:21to you on Telegram, where you can
462. 22:23consult cases at any time of the day,
463. 22:26from your own cell phone, okay? So
464. 22:29there are many use cases, many
465. 22:31scenarios, okay? That you can use this
466. 22:33in the best way. That's what's
467. 22:35important, right? After all, these
468. 22:37agents, these flows serve to improve
469. 22:39our work, right? Ah, so alright. Yeah,
470. 22:43that was what I wanted to show in this
471. 22:44video. It's an extremely simple
472. 22:46workflow, okay? Anyone can come in and
473. 22:49set this up in a little over 5 minutes,
474. 22:51I don't know. So that's it, take a look
475. 22:54at the documentation, ah, create this
476. 22:57flow yourself, put it into practice,
477. 22:59right? Especially if you're in the
478. 23:01field, put it into practice. Maybe it
479. 23:03will help you, maybe not. Eh, it
480. 23:05depends on what you do in your work,
481. 23:08right? If you work directly with this,
482. 23:10it might help you. Otherwise, there are
483. 23:12several other workflows we can build
484. 23:14focused on the legal field, right? And
485. 23:18if you guys really like this type of
486. 23:20content or if there are any lawyers out
487. 23:22there or people in the legal field who
488. 23:24like my videos, leave a comment. I can
489. 23:27bring other workflows, okay? Related to
490. 23:30this area. Eh, and there is an infinity
491. 23:33of possibilities, okay, that we can, eh
492. 23:36, build focused on law or any other
493. 23:39area, okay? Leave suggestions down
494. 23:42below as well, okay? Your opinion is
495. 23:44always very welcome, your comment, your
496. 23:45feedback, okay? It helps a lot, it
497. 23:47gives new ideas. And that's it, this
498. 23:50video is coming to an end. Leave your
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502. 23:57Every week there's a new video, okay?
503. 23:58I'm looking to increase the frequency
504. 24:01of videos to, you know, bring more
505. 24:02topics to you, right? The channel is a
506. 24:05bit slow, but there are some projects
507. 24:08underway and good things are coming in
508. 24:10the future, okay? So, that was what I
509. 24:13had for today's video. Deal? So, I'll
510. 24:16see you in the next one.