WEBVTT 00:00.120 --> 00:01.400 Hey there, Eden here. 00:01.400 --> 00:04.480 And in this video we're going to do all of the boilerplate setup. 00:04.480 --> 00:07.720 We're going to set up a virtual environment with poetry. 00:07.720 --> 00:09.800 We're going to install all the dependencies. 00:09.800 --> 00:14.480 We're going to fill out the env file with all the API keys that we need. 00:14.520 --> 00:19.400 And after this video we'll be ready to implement our react graph graph. 00:21.360 --> 00:23.960 So we have now an empty directory. 00:23.960 --> 00:28.160 Let's go and initialize our poetry project with poetry init. 00:28.680 --> 00:32.360 And let me go now and click enter for everything. 00:34.880 --> 00:37.000 All right so we have a poetry project. 00:37.000 --> 00:39.800 Let's go and add a new file here. 00:40.000 --> 00:40.760 Let's call it. 00:40.800 --> 00:41.640 Gitignore. 00:42.080 --> 00:46.240 And here I'm simply going to paste here a standard Python. 00:46.240 --> 00:47.280 Gitignore file. 00:47.400 --> 00:53.320 And what's important to me here is that it won't add into GitHub any env files. 00:53.320 --> 00:56.000 So I won't expose in GitHub any API keys. 00:56.400 --> 00:58.360 And you can take the content of the. 00:58.400 --> 01:05.040 Gitignore file from the repository or from the videos resources where I'm going to attach the content 01:05.040 --> 01:05.840 of this file. 01:06.640 --> 01:07.240 All right. 01:07.240 --> 01:10.800 So let's go now and install the packages that we need. 01:11.400 --> 01:13.720 Of course we want to install link chain. 01:14.000 --> 01:15.760 We want link chain OpenAI. 01:16.360 --> 01:18.880 We want link chain Tahvili for search. 01:19.200 --> 01:21.200 We want to install Lang graph. 01:21.760 --> 01:26.040 And we want to install Python env to load the environment variables. 01:26.400 --> 01:33.360 And let's also install black and eishort for some formatting that we'll do after we finish coding everything. 01:34.280 --> 01:38.240 So right now we're installing all the dependencies and all the packages that we need. 01:38.280 --> 01:41.800 And we'll be implementing everything with link graph. 01:42.200 --> 01:44.480 All right so we finished installing everything. 01:44.480 --> 01:47.000 Let's go and check our project.toml file. 01:47.000 --> 01:49.320 And we can see all of the dependencies installed. 01:49.720 --> 01:53.080 And let's go and create now a dot env file. 01:55.440 --> 02:00.560 And let me paste in all the environment variables that we will need for this project. 02:00.760 --> 02:03.440 And don't worry about me exposing my API keys. 02:03.480 --> 02:06.230 I revoked them before I published this video. 02:06.510 --> 02:08.430 Let's quickly review the content here. 02:08.790 --> 02:12.070 So we want to use the OpenAI API key. 02:12.070 --> 02:14.790 So we'll be able to create LLM calls. 02:14.790 --> 02:20.750 And to use the OpenAI Llms we want to enable link chain tracing. 02:20.750 --> 02:24.230 And for that we'll be needing to put the link chain API key. 02:24.630 --> 02:28.710 And we want to enable link chain tracing v2 equals to true. 02:29.190 --> 02:33.110 And I'll call the project react function calling. 02:33.110 --> 02:39.950 So all those values over here is to enable tracing for our graph graph and for the API calls we make 02:39.950 --> 02:40.750 to OpenAI. 02:41.270 --> 02:46.670 And lastly we also want to add API key to use the search API. 02:47.510 --> 02:48.070 Cool. 02:48.110 --> 02:50.990 Let's go now and create a new file. 02:50.990 --> 02:52.990 Let's call this file Main.py. 02:53.350 --> 02:56.470 And this is where we're going to run everything from our project. 02:57.030 --> 02:59.310 And let's write if name equals main. 02:59.310 --> 03:05.150 And let's go print something like hello react lang graph with function calling. 03:06.310 --> 03:09.190 All right, let me print this just as a sanity check. 03:09.710 --> 03:13.030 And I want now to import from dot env. 03:13.990 --> 03:18.950 I want to import load dot env and to load the environment variables. 03:19.310 --> 03:26.790 And here we simply printed the OpenAI API key just as a sanity check to see that we loaded the correct 03:26.790 --> 03:27.430 values. 03:27.670 --> 03:30.350 So let's go and let's try to run this. 03:30.750 --> 03:32.990 And we can see now the value of the API key. 03:33.150 --> 03:35.310 So this is working as expected. 03:35.510 --> 03:37.750 And we can remove this now from the code. 03:38.790 --> 03:39.590 Alrighty. 03:39.790 --> 03:43.190 So let's now go and create two files here. 03:43.190 --> 03:47.470 So I want to create a file called react.py. 03:48.030 --> 03:52.590 And this file is going to be holding our reasoning engine. 03:54.670 --> 03:57.950 And let's also create a node.py file. 03:57.950 --> 04:02.550 And this file is going to have and hold the implementation of our graph nodes. 04:02.750 --> 04:06.030 And in the following videos we're going to implement this. 04:06.660 --> 04:07.340 Great. 04:07.340 --> 04:09.820 So this is pretty much it for this video. 04:09.820 --> 04:12.580 Right now I am going to commit those changes. 04:12.580 --> 04:14.500 So you can see this available code. 04:14.500 --> 04:15.820 And you can clone it if you want. 04:15.860 --> 04:17.500 And you can have it as a reference. 04:17.900 --> 04:22.820 Let me write git add and let's see all the files that we created. 04:23.900 --> 04:30.820 So let me go now and commit those changes and we'll call it Project Setup. 04:34.540 --> 04:38.020 And let's go and push it into our repository. 04:43.460 --> 04:44.220 Alrighty. 04:44.260 --> 04:49.100 And if you want to check it out you can go to the repository. 04:49.580 --> 04:57.780 And here in the branches go and select the branch project slash react async function calling. 04:58.180 --> 05:01.460 And here you can see in go to the commit list. 05:01.460 --> 05:06.700 And you'll have this commit that you're seeing right now which has the implementation for everything 05:06.700 --> 05:08.220 we did in this video.